WO2018022279A1 - Phenolate transition metal complexes, production and use thereof - Google Patents
Phenolate transition metal complexes, production and use thereof Download PDFInfo
- Publication number
- WO2018022279A1 WO2018022279A1 PCT/US2017/041201 US2017041201W WO2018022279A1 WO 2018022279 A1 WO2018022279 A1 WO 2018022279A1 US 2017041201 W US2017041201 W US 2017041201W WO 2018022279 A1 WO2018022279 A1 WO 2018022279A1
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- WIPO (PCT)
- Prior art keywords
- hydrocarbyl radical
- heteroatom
- independently
- group
- substituted
- Prior art date
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- 229910052723 transition metal Inorganic materials 0.000 title claims abstract description 51
- -1 Phenolate transition metal Chemical class 0.000 title claims description 227
- 229940031826 phenolate Drugs 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 49
- 150000003624 transition metals Chemical class 0.000 claims abstract description 45
- 239000003446 ligand Substances 0.000 claims abstract description 24
- 239000012986 chain transfer agent Substances 0.000 claims abstract description 23
- 150000001336 alkenes Chemical class 0.000 claims abstract description 21
- 229920000098 polyolefin Polymers 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims description 115
- 239000012190 activator Substances 0.000 claims description 96
- 125000005842 heteroatom Chemical group 0.000 claims description 75
- 229910052739 hydrogen Inorganic materials 0.000 claims description 49
- 239000001257 hydrogen Substances 0.000 claims description 49
- AQZWEFBJYQSQEH-UHFFFAOYSA-N 2-methyloxaluminane Chemical compound C[Al]1CCCCO1 AQZWEFBJYQSQEH-UHFFFAOYSA-N 0.000 claims description 40
- 125000004122 cyclic group Chemical group 0.000 claims description 40
- 125000003367 polycyclic group Chemical group 0.000 claims description 40
- 125000003118 aryl group Chemical group 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 37
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 34
- 239000005977 Ethylene Substances 0.000 claims description 33
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 29
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 28
- 230000007935 neutral effect Effects 0.000 claims description 25
- 239000000178 monomer Substances 0.000 claims description 23
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 22
- 125000004429 atom Chemical group 0.000 claims description 21
- 229910052702 rhenium Inorganic materials 0.000 claims description 21
- 150000001450 anions Chemical class 0.000 claims description 20
- 125000000623 heterocyclic group Chemical group 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 229910021481 rutherfordium Inorganic materials 0.000 claims description 16
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 12
- 125000005647 linker group Chemical group 0.000 claims description 11
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052726 zirconium Inorganic materials 0.000 claims description 10
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 claims description 9
- 229910052735 hafnium Inorganic materials 0.000 claims description 9
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Natural products C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 claims description 6
- 125000003392 indanyl group Chemical group C1(CCC2=CC=CC=C12)* 0.000 claims description 6
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 claims description 6
- 229910052703 rhodium Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 125000002883 imidazolyl group Chemical group 0.000 claims description 4
- 125000003387 indolinyl group Chemical group N1(CCC2=CC=CC=C12)* 0.000 claims description 4
- 125000001041 indolyl group Chemical group 0.000 claims description 4
- OLFPYUPGPBITMH-UHFFFAOYSA-N tritylium Chemical compound C1=CC=CC=C1[C+](C=1C=CC=CC=1)C1=CC=CC=C1 OLFPYUPGPBITMH-UHFFFAOYSA-N 0.000 claims description 4
- NMXLXQGHBSPIDR-UHFFFAOYSA-N 2-(2-methylpropyl)oxaluminane Chemical compound CC(C)C[Al]1CCCCO1 NMXLXQGHBSPIDR-UHFFFAOYSA-N 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- YVSMQHYREUQGRX-UHFFFAOYSA-N 2-ethyloxaluminane Chemical compound CC[Al]1CCCCO1 YVSMQHYREUQGRX-UHFFFAOYSA-N 0.000 claims description 2
- RWRDLPDLKQPQOW-UHFFFAOYSA-O Pyrrolidinium ion Chemical compound C1CC[NH2+]C1 RWRDLPDLKQPQOW-UHFFFAOYSA-O 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 87
- 239000000243 solution Substances 0.000 description 75
- 229920000642 polymer Polymers 0.000 description 71
- 150000001875 compounds Chemical class 0.000 description 61
- 102000018779 Replication Protein C Human genes 0.000 description 43
- 108010027647 Replication Protein C Proteins 0.000 description 43
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 39
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 36
- 238000006243 chemical reaction Methods 0.000 description 31
- 239000000203 mixture Substances 0.000 description 31
- 229910052751 metal Inorganic materials 0.000 description 27
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical class CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 26
- 150000002431 hydrogen Chemical class 0.000 description 26
- 239000002184 metal Substances 0.000 description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 24
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 21
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 19
- 125000001183 hydrocarbyl group Chemical group 0.000 description 19
- 239000002002 slurry Substances 0.000 description 19
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 18
- 230000002829 reductive effect Effects 0.000 description 18
- 229920001577 copolymer Polymers 0.000 description 17
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 17
- 229920001903 high density polyethylene Polymers 0.000 description 16
- 239000004700 high-density polyethylene Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 16
- 239000007787 solid Substances 0.000 description 16
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 15
- 238000007334 copolymerization reaction Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 15
- 239000002516 radical scavenger Substances 0.000 description 14
- 238000012546 transfer Methods 0.000 description 14
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 13
- 238000005227 gel permeation chromatography Methods 0.000 description 13
- 125000004051 hexyl group Chemical class [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 13
- 125000001147 pentyl group Chemical class C(CCCC)* 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 13
- PBKONEOXTCPAFI-UHFFFAOYSA-N 1,2,4-trichlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1 PBKONEOXTCPAFI-UHFFFAOYSA-N 0.000 description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Chemical class CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 11
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 10
- 125000002704 decyl group Chemical class [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 10
- 125000003438 dodecyl group Chemical class [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 10
- 125000003187 heptyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 10
- 125000001400 nonyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 10
- 125000002347 octyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 125000002948 undecyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 10
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- UKPSQOZZEVCTLS-UHFFFAOYSA-N 2-carbazol-9-yl-4-methylphenol Chemical compound CC1=CC=C(O)C(N2C3=CC=CC=C3C3=CC=CC=C32)=C1 UKPSQOZZEVCTLS-UHFFFAOYSA-N 0.000 description 8
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 8
- 125000001204 arachidyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 238000000149 argon plasma sintering Methods 0.000 description 8
- 150000004820 halides Chemical class 0.000 description 8
- 229920002521 macromolecule Polymers 0.000 description 8
- 125000002960 margaryl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 125000001421 myristyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 125000001196 nonadecyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 239000012044 organic layer Substances 0.000 description 8
- 125000000913 palmityl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 125000002958 pentadecyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 125000004079 stearyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 125000002889 tridecyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 239000002841 Lewis acid Substances 0.000 description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 7
- 150000007517 lewis acids Chemical class 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 230000002000 scavenging effect Effects 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 7
- 125000001424 substituent group Chemical group 0.000 description 7
- LFXVBWRMVZPLFK-UHFFFAOYSA-N trioctylalumane Chemical compound CCCCCCCC[Al](CCCCCCCC)CCCCCCCC LFXVBWRMVZPLFK-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 6
- 238000005481 NMR spectroscopy Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 229910052752 metalloid Inorganic materials 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 150000003623 transition metal compounds Chemical class 0.000 description 6
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 238000007792 addition Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 5
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- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 125000000524 functional group Chemical group 0.000 description 5
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- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 5
- 125000005208 trialkylammonium group Chemical group 0.000 description 5
- CCVYRRGZDBSHFU-UHFFFAOYSA-N (2-hydroxyphenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC=C1O CCVYRRGZDBSHFU-UHFFFAOYSA-N 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
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- UJOBWOGCFQCDNV-UHFFFAOYSA-N Carbazole Natural products C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000002879 Lewis base Substances 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 238000012662 bulk polymerization Methods 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 4
- 239000012442 inert solvent Substances 0.000 description 4
- 229910052809 inorganic oxide Inorganic materials 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 150000007527 lewis bases Chemical class 0.000 description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- 125000002524 organometallic group Chemical group 0.000 description 4
- 239000002685 polymerization catalyst Substances 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
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- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 description 1
- UORVGPXVDQYIDP-BJUDXGSMSA-N borane Chemical compound [10BH3] UORVGPXVDQYIDP-BJUDXGSMSA-N 0.000 description 1
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- 150000001639 boron compounds Chemical class 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 description 1
- 125000004799 bromophenyl group Chemical class 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 125000004369 butenyl group Chemical class C(=CCC)* 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 125000000480 butynyl group Chemical group [*]C#CC([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 125000003901 ceryl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 1
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- 239000012967 coordination catalyst Substances 0.000 description 1
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- OJOSABWCUVCSTQ-UHFFFAOYSA-N cyclohepta-2,4,6-trienylium Chemical compound C1=CC=C[CH+]=C[CH]1 OJOSABWCUVCSTQ-UHFFFAOYSA-N 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- NLDGJRWPPOSWLC-UHFFFAOYSA-N deca-1,9-diene Chemical compound C=CCCCCCCC=C NLDGJRWPPOSWLC-UHFFFAOYSA-N 0.000 description 1
- 125000003493 decenyl group Chemical class [H]C([*])=C([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000005070 decynyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C#C* 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- ZOCHARZZJNPSEU-UHFFFAOYSA-N diboron Chemical class B#B ZOCHARZZJNPSEU-UHFFFAOYSA-N 0.000 description 1
- LJSQFQKUNVCTIA-UHFFFAOYSA-N diethyl sulfide Chemical class CCSCC LJSQFQKUNVCTIA-UHFFFAOYSA-N 0.000 description 1
- HJXBDPDUCXORKZ-UHFFFAOYSA-N diethylalumane Chemical compound CC[AlH]CC HJXBDPDUCXORKZ-UHFFFAOYSA-N 0.000 description 1
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-O dimethyl(phenyl)azanium Chemical compound C[NH+](C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-O 0.000 description 1
- GNPSMYTXIPVJDU-UHFFFAOYSA-N dioctylalumane Chemical compound C(CCCCCCC)[AlH]CCCCCCCC GNPSMYTXIPVJDU-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- GPAYUJZHTULNBE-UHFFFAOYSA-N diphenylphosphine Chemical compound C=1C=CC=CC=1PC1=CC=CC=C1 GPAYUJZHTULNBE-UHFFFAOYSA-N 0.000 description 1
- MKRVHLWAVKJBFN-UHFFFAOYSA-N diphenylzinc Chemical compound C=1C=CC=CC=1[Zn]C1=CC=CC=C1 MKRVHLWAVKJBFN-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 125000005066 dodecenyl group Chemical class C(=CCCCCCCCCCC)* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000000105 evaporative light scattering detection Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 1
- 125000001207 fluorophenyl group Chemical class 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000000755 henicosyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- GEAWFZNTIFJMHR-UHFFFAOYSA-N hepta-1,6-diene Chemical compound C=CCCCC=C GEAWFZNTIFJMHR-UHFFFAOYSA-N 0.000 description 1
- 125000002818 heptacosyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- GJTGYNPBJNRYKI-UHFFFAOYSA-N hex-1-ene;prop-1-ene Chemical compound CC=C.CCCCC=C GJTGYNPBJNRYKI-UHFFFAOYSA-N 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical compound C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- 125000006038 hexenyl group Chemical class 0.000 description 1
- 125000005980 hexynyl group Chemical group 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 229910001504 inorganic chloride Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 125000006303 iodophenyl group Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000002463 lignoceryl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- KJJBSBKRXUVBMX-UHFFFAOYSA-N magnesium;butane Chemical compound [Mg+2].CCC[CH2-].CCC[CH2-] KJJBSBKRXUVBMX-UHFFFAOYSA-N 0.000 description 1
- DLPASUVGCQPFFO-UHFFFAOYSA-N magnesium;ethane Chemical compound [Mg+2].[CH2-]C.[CH2-]C DLPASUVGCQPFFO-UHFFFAOYSA-N 0.000 description 1
- RVOYYLUVELMWJF-UHFFFAOYSA-N magnesium;hexane Chemical compound [Mg+2].CCCCC[CH2-].CCCCC[CH2-] RVOYYLUVELMWJF-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012685 metal catalyst precursor Substances 0.000 description 1
- 238000006263 metalation reaction Methods 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
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- 125000001802 myricyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QJAIOCKFIORVFU-UHFFFAOYSA-N n,n-dimethyl-4-nitroaniline Chemical compound CN(C)C1=CC=C([N+]([O-])=O)C=C1 QJAIOCKFIORVFU-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- DYFFAVRFJWYYQO-UHFFFAOYSA-N n-methyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(C)C1=CC=CC=C1 DYFFAVRFJWYYQO-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 125000002465 nonacosyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000005187 nonenyl group Chemical class C(=CCCCCCCC)* 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 125000005071 nonynyl group Chemical group C(#CCCCCCCC)* 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 1
- 125000005064 octadecenyl group Chemical class C(=CCCCCCCCCCCCCCCCC)* 0.000 description 1
- 125000004365 octenyl group Chemical class C(=CCCCCCC)* 0.000 description 1
- 125000005069 octynyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C#C* 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 230000003606 oligomerizing effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 1
- 125000002460 pentacosyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 125000002255 pentenyl group Chemical class C(=CCCC)* 0.000 description 1
- 125000005981 pentynyl group Chemical group 0.000 description 1
- 125000005062 perfluorophenyl group Chemical group FC1=C(C(=C(C(=C1F)F)F)F)* 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Chemical class C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- IPNPIHIZVLFAFP-UHFFFAOYSA-N phosphorus tribromide Chemical compound BrP(Br)Br IPNPIHIZVLFAFP-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 125000004368 propenyl group Chemical class C(=CC)* 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000006268 reductive amination reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000001542 size-exclusion chromatography Methods 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001370 static light scattering Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium group Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229920000576 tactic polymer Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- VUENSYJCBOSTCS-UHFFFAOYSA-N tert-butyl-imidazol-1-yl-dimethylsilane Chemical compound CC(C)(C)[Si](C)(C)N1C=CN=C1 VUENSYJCBOSTCS-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 125000005063 tetradecenyl group Chemical class C(=CCCCCCCCCCCCC)* 0.000 description 1
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical compound C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 125000003944 tolyl group Chemical class 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 1
- 125000002469 tricosyl group Chemical class [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000005040 tridecenyl group Chemical class C(=CCCCCCCCCCCC)* 0.000 description 1
- XBEXIHMRFRFRAM-UHFFFAOYSA-N tridodecylalumane Chemical compound CCCCCCCCCCCC[Al](CCCCCCCCCCCC)CCCCCCCCCCCC XBEXIHMRFRFRAM-UHFFFAOYSA-N 0.000 description 1
- RXJKFRMDXUJTEX-UHFFFAOYSA-N triethylphosphine Chemical compound CCP(CC)CC RXJKFRMDXUJTEX-UHFFFAOYSA-N 0.000 description 1
- UORVGPXVDQYIDP-UHFFFAOYSA-N trihydridoboron Substances B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 1
- OBAJXDYVZBHCGT-UHFFFAOYSA-N tris(pentafluorophenyl)borane Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1B(C=1C(=C(F)C(F)=C(F)C=1F)F)C1=C(F)C(F)=C(F)C(F)=C1F OBAJXDYVZBHCGT-UHFFFAOYSA-N 0.000 description 1
- 125000005065 undecenyl group Chemical class C(=CCCCCCCCCC)* 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- HEPBQSXQJMTVFI-UHFFFAOYSA-N zinc;butane Chemical compound [Zn+2].CCC[CH2-].CCC[CH2-] HEPBQSXQJMTVFI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
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- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
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- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
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- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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Definitions
- TITLE Phenolate Transition Metal Complexes, Production and Use Thereof
- the invention relates to phenolate ligands, phenolate transition metal complexes and processes for use of such complexes as catalysts for alkene polymerization processes, with or without chain transfer agents.
- Olefin polymerization catalysts are of great use in industry. Hence there is interest in finding new catalyst systems that increase the commercial usefulness of the catalyst and allow the production of polymers having improved properties.
- Catalysts for olefin polymerization have been based on bisphenolate complexes as catalyst precursors, which are typically activated with an alumoxane or with an activator containing a non-coordinating anion.
- Diamine bis(phenolate) Group IV complexes have been used as transition metal components in the copolymerization of ethylene and hexene, see for example, Macromolecules 2005, 38, 2552-2558, and in the homopolymerization of 1-hexene, see for example J. Am. Chem. Soc. 2000, 122, 10706, and propylene, see for example, Macromolecules 2010, 43, 1689.
- WO 2002/036638 and WO 2012/098521 disclose diamine bis (phenolate) compounds for use as alpha olefin polymerization catalysts.
- WO 2012/027448 and WO 2003/091262 disclose bridged bis(phenyl phenol) compounds for olefin polymerization catalysts.
- US 8,071,701 discloses bridged polydentate catalyst complexes that produce low molecular weight (approx. 21,000 Mw or less) homopolypropylene where the examples have one carbon in the bridge.
- references of interest include: WO 2016/003878; WO 2016/003879; US 6,841,502; US 6,596,827; WO 2014/143202; WO 2014/022746; WO 2014/022010; WO 2014/022012; WO 2014/22008; WO 2014/022011; WO 2015/088819; US 8,791,217; US 7,812,104; US 6,232,421; US 6,333,389; US 6,333,423; US 8,907,032; WO 2007/130306; Israel Journal of Chemistry, Volume 42, 2002 pg. 373-381; Macromolecules, 2007, 40, 7061-7064; Chem. Comm.
- This invention relates to li ands represented by the formula (A):
- each Q is a neutral group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R 3 is not present when Q is a Group 16 atom;
- each L is independently R 2 and is not part of an aromatic ring; y is greater than or equal to 2;
- R 1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups;
- each R a , R b , R c , R d , R e , R f , R g , and R h is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of R a to R h may independently join together to form a C 4 to C 6 2 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
- each R 2 is independently a hydrogen, a C1-C40 hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R 2 groups may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic; and
- each R 3 is independently a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
- This invention relates to transition metal com lexes represented by the formula (I):
- M is a Group 4 transition metal
- each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R 3 is not present when Q is a Group 16 atom;
- each L is independently and is not part of an aromatic ring
- y is greater than or equal to 2;
- X 1 and X 2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X 1 and X 2 join together to form a C 4 to C 6 2 cyclic, polycyclic or heterocyclic structure;
- R 1 is a divalent Ci-C 4 o hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking between the two Q groups;
- each R a , R b , R c , R d , R e , R f , R s , and R h is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of R a to R h may independently join together to form a C 4 to C 6 2 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
- each R 2 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R 2 groups may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic; and
- each R 3 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
- This invention relates to transition metal com lexes represented by the formula (II)
- M is a Group 4 transition metal
- each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R 3 is not present when Q is a Group 16 atom;
- X 1 and X 2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X 1 and X 2 join together to form a C 4 to C 6 2 cyclic, polycyclic, or heterocyclic structure;
- R 1 is a divalent Ci-C 4 o hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups;
- each R a , R b , R c , R d , R e , R f , R s , and R h is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of R a to R h may independently join together to form a C 4 to C 6 2 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
- each R 2 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R 2 groups may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic, polycyclic or heterocyclic structure is not aromatic; and
- each R 3 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
- This invention also relates to a catalyst system comprising an activator and one or more catalysts compounds described herein.
- This invention also relates to a process to make polyolefin using the catalyst systems described herein.
- This invention further relates to methods to polymerize olefins using the above complex in the presence of a chain transfer agent.
- Figure 1 is a representation of 1-Zr.
- Figure 2 is a plot of the chain transfer efficiency of catalyst 1-Zr from Table 14, which is based on the number of polymer chains transferred to each mole of metal of the chain transfer agent.
- Figure 3 is a plot of the chain transfer efficiency of catalyst 1-Hf from Table 14 which is based on the number of polymer chains transferred to each mole of metal of the chain transfer agent.
- Figure 4 is the ⁇ NMR spectrum for compound A-6 in CD2CI2.
- Figure 5 is the ⁇ NMR spectrum for compound B-4 in CD2CI2.
- Figure 6 is the ⁇ NMR spectrum for compound 1-Zr in CD2CI2.
- Figure 7 is the ⁇ NMR spectrum for compound 1-Hf in CD2CI2.
- Figure 8 is the ⁇ NMR spectrum for compound 2-Zr in CD2CI2.
- Figure 9 is the ⁇ NMR spectrum for compound 2-Hf in CD2CI2.
- transition metal complexes The term complex is used to describe molecules in which an ancillary ligand is coordinated to a central transition metal atom.
- the ligand is bulky and stably bonded to the transition metal so as to maintain its influence during use of the catalyst, such as polymerization.
- the ligand may be coordinated to the transition metal by covalent bond and/or electron donation coordination or intermediate bonds.
- the transition metal complexes are generally subjected to activation to perform their polymerization or oligomerization function using an activator, which is believed to create a cation as a result of the removal of an anionic group, often referred to as a leaving group, from the transition metal.
- a solid line indicates a bond
- an arrow indicates that the bond may be active
- each dashed line represents a bond having varying degrees of covalency and a varying degree of coordination.
- Me is methyl
- Et is ethyl
- Bu is butyl
- t-Bu and 3 ⁇ 4u are tertiary butyl
- Pr is propyl
- iPr and ⁇ are isopropyl
- Cy is cyclohexyl
- THF also referred to as thf
- Bn is benzyl
- [FhCOJx is paraformaldehyde
- Ph is phenyl.
- hydrocarbyl radical hydrocarbyl radical
- hydrocarbyl group hydrocarbyl radical
- a hydrocarbyl radical is defined to be Ci to C70 radicals, or Ci to C20 radicals, or Ci to Cio radicals, or Ce to C70 radicals, or Ce to C20 radicals, or C7 to C20 radicals that may be linear, branched, or cyclic (including polycyclic) and aromatic or non-aromatic.
- a carbazole radical or substituted carbazole radical is represented by the formula:
- each R 1 through R 8 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, functional group comprising elements from Group 13 to 17 of the Periodic Table of the Elements, or two or more of R 1 to R 8 may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof.
- each R 1 through R 8 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a functional group comprising elements from Group 13 to 17 of the periodic table of the elements, or two or more of R 1 to R 8 may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof;
- R* is a hydrogen, a Ci-C 4 o hydrocarbyl radical, a substituted Ci-C 4 o hydrocarbyl radical (preferably R* is methyl, phenyl, or substituted phenyl).
- catalyst system is defined to mean a complex/activator pair.
- Catalyst system means the unactivated catalyst complex (precatalyst) together with an activator, optionally, a chain transfer agent, and, optionally, a co-activator.
- activator optionally, a chain transfer agent
- co-activator When it is used to describe such a pair after activation, it means the activated complex and the activator or other charge-balancing moiety.
- the transition metal compound may be neutral as in a precatalyst, or a charged species with a counter ion as in an activated catalyst system.
- catalyst precursor is also often referred to as catalyst precursor, precatalyst, catalyst, catalyst compound, transition metal compound, or transition metal complex. These words are used interchangeably.
- a “neutral donor group” is a neutrally charged group which donates one or more pairs of electrons to a metal.
- an “olefin,” alternatively referred to as “alkene,” is a linear, branched, or cyclic compound of carbon and hydrogen having at least one double bond.
- alkene is a linear, branched, or cyclic compound of carbon and hydrogen having at least one double bond.
- a copolymer when a copolymer is said to have an "ethylene" content of 35 wt% to 55 wt%, it is understood that the mer unit in the copolymer is derived from ethylene in the polymerization reaction and said derived units are present at 35 wt% to 55 wt%, based upon the weight of the copolymer.
- a "polymer” has two or more of the same or different mer units.
- a “homopolymer” is a polymer having mer units that are the same.
- a “copolymer” is a polymer having two or more mer units that are different from each other.
- a “terpolymer” is a polymer having three mer units that are different from each other.
- ethylene polymer or "ethylene copolymer” is a polymer or copolymer comprising at least 50 mole% ethylene derived units
- ethylene polymer or "propylene copolymer” is a polymer or copolymer comprising at least 50 mole% propylene derived units, and so on.
- ethylene shall be considered an a-olefin.
- substituted means that a hydrogen group has been replaced with a heteroatom, or a heteroatom-containing group.
- a “substituted hydrocarbyl” is a radical made of carbon and hydrogen where at least one hydrogen is replaced by a heteroatom or heteroatom-containing group.
- substituted means that a hydrogen group has been replaced with a hydrocarbyl group, a heteroatom, or a heteroatom-containing group.
- methyl cyclopentadiene (Cp) is a Cp group substituted with a methyl group.
- melting points (T m ) are DSC second melt.
- aryl refers to aromatic cyclic structures, which may be substituted with hydrocarbyl radicals and/or functional groups as defined herein.
- aromatic also refers to pseudoaromatic heterocycles which are heterocyclic substituents that have similar properties and structures (nearly planar) to aromatic heterocyclic ligands, but are not by definition aromatic; likewise, the term aromatic also refers to substituted aromatics.
- continuous means a system that operates without interruption or cessation.
- a continuous process to produce a polymer would be one where the reactants are continually introduced into one or more reactors and polymer product is continually withdrawn.
- a solution polymerization means a polymerization process in which the polymer is dissolved in a liquid polymerization medium, such as an inert solvent or monomer(s) or their blends.
- a solution polymerization is typically homogeneous.
- a homogeneous polymerization is one where the polymer product is dissolved in the polymerization medium.
- Such systems are preferably not turbid as described in J. Vladimir Oliveira, C. Dariva and J. C. Pinto, Ind. Eng, Chem. Res. 29, 2000, 4627.
- a bulk polymerization means a polymerization process in which the monomers and/or comonomers being polymerized are used as a solvent or diluent using little or no inert solvent as a solvent or diluent. A small portion of inert solvent might be used as a carrier for catalyst and scavenger.
- a bulk polymerization system contains less than 25 wt% of inert solvent or diluent, preferably less than 10 wt%, preferably less than 1 wt%, preferably 0 wt%.
- RT room temperature, which is defined as 25 °C unless otherwise specified. All percentages are weight percent (wt%) unless otherwise specified.
- this invention relates to ligands represented by the formula (A):
- each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R 3 is not present when Q is a Group 16 atom;
- y is greater than or equal to 2, preferably 2, 3, 4, 5, or 6;
- R 1 is a divalent C1-C40 (alternately Ci to C20) hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups, preferably as described below for formulas I and II;
- each R a , R b , R c , R d , R e , R f , R g , and R h is, independently, a hydrogen, a Ci-Ceo (alternately Ci to C40) hydrocarbyl radical, a C1-C60 (alternately Ci to C40) substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of R a to R h may independently join together to form a C 4 to C 6 2 cyclic, polycyclic or heterocyclic structure, or a combination thereof, preferably as described below for formulas I and II;
- each R 2 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R 2 groups may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic, preferably as described below for formulas I and II; and
- each R 3 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, preferably as described below for formulas I and II.
- transition metal complex (optionally for use in alkene olymerization) represented by the formula (I) or (II):
- M is a Group 4 transition metal (preferably Hf, Zr, or Ti, preferably Hf or Zr);
- each L is independently and is not part of an aromatic ring
- y is greater than or equal to 2, e.g., 2, 3, 4, 5, or 6;
- X 1 and X 2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X 1 and X 2 join together to form a C 4 to C 6 2 cyclic, polycyclic or heterocyclic ring structure (preferably benzyl, methyl, ethyl, chloro, bromo, and the like);
- each Q is independently a neutral donor group comprising at least one atom from Group 15 or Group 16, preferably comprising O, N, S, or P (preferably O or N), and R 3 is not present when Q is a Group 16 atom;
- R 1 is a divalent C1-C40 (alternately Ci to C20) hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups, preferably R 1 is a -(CR3 ⁇ 4n- group, where n is 2, 3, 4, 5, or 6, (preferably 2 or 3) each R 5 is H or a Ci to C 4 o hydrocarbyl radical, a Ci to C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or multiple R 5 groups may join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure (preferably a benzene ring, substituted benzene ring, cyclohexyl, substituted cyclohexyl, cyclooctyl, or substituted cyclooctyl), preferably each R 5 is, independently, a Ci-
- each R a , R b , R c , R d , R e , R f , Rs, and R h is, independently, a hydrogen, a Ci-Ceo (alternately Ci to C 4 o) hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R a to R h groups may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, preferably each R a , R b , R c , R d , R e , R f , R g , and R h is, independently, a C1-C20 hydrocarbyl radical, preferably a C1-C20 alkyl or aromatic radical, preferably each R a , R b , R c , R d , R e , R f , R s
- each R 2 is, independently, a hydrogen, a Ci-C 4 o hydrocarbyl radical, a Ci-C 4 o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R 2 groups may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic, preferably each R 2 is, independently, a C1-C20 hydrocarbyl radical, preferably a C1-C20 alkyl radical, preferably each R 2 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentade
- each R 3 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, preferably a C1-C20 hydrocarbyl radical, preferably a C1-C20 alkyl radical, preferably each R 3 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl, phenyl, and substituted phenyl.
- this invention relates to catalyst compounds represented by the formula (I) or (II) where R a and/or R e (preferably R a and R e ) are independently a carbazole radical or substituted carbazole radical is re resented by the formula:
- each R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Group 13 to 17 of the periodic table of the elements, or two or more of R 1 to R 8 may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof, preferably each R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 is hydrogen.
- any hydrocarbyl radical may be independently selected from methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, hexacosyl, heptacosyl, octacosyl, nonacosyl, triacontyl, propenyl, butenyl, pentenyl, hexenyl, heptenyl, octeny
- transition metal complexes described herein M may be Hf,
- each of X 1 and X 2 is independently selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms (such as methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl), hydrides, amides, alkoxides having from 1 to 20 carbon atoms, sulfides, phosphides, halides, sulfoxides, sulfonates, phosphonates, nitrates, carboxylates, carbonates
- R 1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between Q and Q.
- R 1 is selected from the group consisting of ethylene (-CH2CH2-), 1,2-cyclohexylene and 1 ,2-phenylene.
- R 1 is -CH2CH2CH2- derived from propylene.
- R 1 is selected form the group consisting of Ci to C20 alkyl groups, such as divalent methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl.
- Ci to C20 alkyl groups such as divalent methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, te
- each R a , R b , R c , R d , R e , R f , R s , and R h is, independently, a hydrogen, a C1-C20 hydrocarbyl radical, a substituted Ci to C20 hydrocarbyl radical, or two or more of R 1 to R 10 may independently join together to form a C 4 to C 6 2 cyclic or polycyclic ring structure, or a combination thereof.
- R c , R d , R e , R f , R s , and R h is independently hydrogen, a halogen, a Ci to C30 hydrocarbyl radical, a Ci to C20 hydrocarbyl radical, or a Ci to C10 hydrocarbyl radical (such as methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl).
- a Ci to C30 hydrocarbyl radical such as methyl, ethyl, ethenyl and isomers of propyl, buty
- each R a , R b , R c , R d , R e , R f , R s , and R h is, independently, a substituted Ci to C30 hydrocarbyl radical, a substituted Ci to C20 hydrocarbyl radical, or a substituted Ci to C10 hydrocarbyl radical (such as 4-fluorophenyl, 4-chlorophenyl, 4-bromophenyl, 4-methoxyphenyl, 4- trifluoromethylphenyl, 4-dimethylaminophenyl, 4-trimethylsilylphenyl, 4-triethylsilylphenyl, trifluoromethyl, fluoromethyl, trichloromethyl, chloromethyl, mesityl, methylthio, phenylthio, (trimethylsilyl)methyl, and (triphenylsilyl)methyl).
- a substituted Ci to C30 hydrocarbyl radical such as 4-fluorophenyl, 4-chloroph
- one or more of R a , R b , R c , R d , R e , R f , R g , and R h is a methyl radical, a fluoride, chloride, bromide, iodide, methoxy, ethoxy, isopropoxy, trifluoromethyl, dimethylamino, diphenylamino, adamantyl, phenyl, pentafluorphenyl, naphthyl, anthracenyl, dimethylphosphanyl, diisopropylphosphanyl, diphenylphosphanyl, methylthio, and phenylthio or a combination thereof.
- Q is preferably a neutral donor group comprising at least one atom from Group 15 or Group 16, preferably Q is NR' 2 , OR', SR', PR'2, where R is as defined for R a (preferably R' is methyl, ethyl, propyl, isopropyl, phenyl, cyclohexyl or linked together to form a five-membered ring such as pyrrolidinyl or a six-membered ring such as piperidinyl), preferably the -(-Q-R ⁇ Q-)- fragment can form a substituted or unsubstituted heterocycle which may or may not be aromatic and may have multiple fused rings.
- R is as defined for R a (preferably R' is methyl, ethyl, propyl, isopropyl, phenyl, cyclohexyl or linked together to form a five-membered ring such as pyrrolidinyl or a six-membered ring such
- Q is preferably NR'2, where R' is methyl, ethyl, propyl, isopropyl, phenyl, cyclohexyl or linked together to form a five-membered ring such as pyrrolidinyl or a six-membered ring such as piperidinyl).
- R e are the same, preferably R a and or R e are C-R'", where each R'" is H or a Ci to C12 hydrocarbyl or substituted hydrocarbyl (such as methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, trifluoromethylphenyl, tolyl, phenyl, methoxyphenyl, tertbutylphenyl, fluorophenyl, diphenyl, dimethylaminophenyl, chlorophenyl, bromophenyl, iodophenyl, (trimethylsilyl)phenyl, (triethylsilyl)phenyl, (trimethylsilyl)methyl, (triethylsilyl)methyl).
- each R'" is
- R a and or R e are the same, preferably R a and or R e are carbazolyl, substituted carbazolyl, indolyl, substituted indolyl, indolinyl, substituted indolinyl, imidazolyl, substituted imidazolyl, indenyl, substituted indenyl, indanyl, substituted indanyl, fluorenyl, or substituted fluorenyl.
- R a and or R e are different.
- R a and or R e are the same.
- M is Zr or Hf; X 1 and X 2 are benzyl radicals; and R 1 is ethylene
- M is Zr or Hf;
- X 1 and X 2 are benzyl radicals;
- R c and R g are methyl radicals;
- R b , R d , R h , and R f are hydrogen; and
- R 1 is ethylene (-CH2CH2-), each Q is an O- containing group,
- R a and R e are carbazolyl or fluorenyl.
- the catalyst complex is represente
- M is preferably Zr or Hf .
- the transition metal compounds may be prepared by three general synthetic routes.
- the phenol is allylated via a nucleophilic substitution followed by a Claisen rearrangement.
- the resulting allyl-substituted phenol is then protected and oxidized with ozone to the corresponding aldehyde.
- Reductive amination of the carbonyl with the diamine followed by deprotection results in the final ligand.
- the aldehyde can be transformed to the corresponding ethyl bromide compound, which is then reacted via nucleophilic substitution with the precursor of the bridging group, e.g., diamine or diol.
- the phenol is ortho-formylated then transformed to the vinyl phenol via a Wittig reaction.
- the vinyl group is oxidized to the alcohol by hydroboration- oxidation then selectively transformed to the aldehyde, which is subsequently reacted as in Method 1 to the final ligand.
- 2-(2-hydroxyphenyl)acetic acid is reduced to corresponding ethyl bromide following a reduction to the alcohol.
- the ethyl bromide compound is then protected and reacted as in Method 1.
- the ligand is then typically reacted with the metal tetra-alkyl compound, e.g., tetrabenzyl, to yield the metal dibenzyl complex of the ligand.
- protection may be any useful material, for example tert-butyldimethylsilyl chloride/imidazole.
- catalyst and “activator” are used herein interchangeably and are defined to be any compound which can activate any one of the catalyst compounds described above by converting the neutral catalyst compound to a catalytically active catalyst compound cation.
- catalyst systems may be formed by combining them with activators in any manner known from the literature including by supporting them for use in slurry or gas phase polymerization.
- the catalyst systems may also be added to or generated in solution polymerization or bulk polymerization (in the monomer).
- the catalyst system typically comprises a complex as described above and an activator such as alumoxane or a non-coordinating anion.
- Non-limiting activators include alumoxanes, aluminum alkyls, ionizing activators, which may be neutral or ionic, and conventional-type cocatalyst.
- Preferred activators typically include alumoxane compounds, modified alumoxane compounds, and ionizing anion precursor compounds that abstract a reactive, ⁇ -bound, metal ligand making the metal complex cationic and providing a charge -balancing non-coordinating or weakly coordinating anion.
- alumoxane activators are utilized as an activator in the catalyst system.
- Alumoxanes are generally oligomeric compounds containing -A ⁇ R ⁇ -O- sub-units, where R 1 is an alkyl group.
- Examples of alumoxanes include methylalumoxane (MAO), modified methylalumoxane (MMAO), ethylalumoxane and isobutylalumoxane.
- Alkylalumoxanes and modified alkylalumoxanes are suitable as catalyst activators, particularly when the abstractable ligand is an alkyl, halide, alkoxide, or amide.
- alumoxanes Mixtures of different alumoxanes and modified alumoxanes may also be used. It may be preferable to use a visually clear methylalumoxane.
- a cloudy or gelled alumoxane can be filtered to produce a clear solution or clear alumoxane can be decanted from the cloudy solution.
- a useful alumoxane is a modified methyl alumoxane (MMAO) cocatalyst type 3A (commercially available from Akzo Chemicals, Inc. under the trade name Modified Methylalumoxane type 3 A, covered under patent number US 5,041,584).
- MMAO modified methyl alumoxane
- the activator is an alumoxane (modified or unmodified)
- some embodiments select the maximum amount of activator typically at up to a 5000-fold molar excess Al/M over the catalyst compound (per metal catalytic site).
- the minimum activator-to-catalyst-compound is a 1:1 molar ratio. Alternate preferred ranges include from 1:1 to 500:1, alternately from 1:1 to 200:1, alternately from 1:1 to 100:1, or alternately from 1:1 to 50:1.
- alumoxane is present at zero mole %, alternately the alumoxane is present at a molar ratio of aluminum to catalyst compound transition metal less than 500:1, preferably less than 300: 1, preferably less than 100:1, preferably less than 1:1.
- Non-Coordinating Anion Activators are used in the polymerization processes described herein.
- NCA non-coordinating anion
- NCA is defined to mean an anion either that does not coordinate to the catalyst metal cation or that does coordinate to the metal cation, but only weakly.
- NCA is also defined to include multicomponent NCA-containing activators, such as ⁇ , ⁇ -dimethylanilinium tetrakis(pentafluorophenyl)borate, that contain an acidic cationic group and the non-coordinating anion.
- NCA is also defined to include neutral Lewis acids, such as tris(pentafluorophenyl)boron, that can react with a catalyst to form an activated species by abstraction of an anionic group.
- NCA coordinates weakly enough that a neutral Lewis base, such as an olefinically or acetylenically unsaturated monomer can displace it from the catalyst center.
- a neutral Lewis base such as an olefinically or acetylenically unsaturated monomer can displace it from the catalyst center.
- Any metal or metalloid that can form a compatible, weakly coordinating complex may be used or contained in the non-coordinating anion. Suitable metals include, but are not limited to, aluminum, gold, and platinum. Suitable metalloids include, but are not limited to, boron, aluminum, phosphorus, and silicon.
- a stoichiometric activator can be either neutral or ionic. The terms ionic activator, and stoichiometric ionic activator can be used interchangeably.
- neutral stoichiometric activator and Lewis acid activator can be used interchangeably.
- non-coordinating anion includes neutral stoichiometric activators, ionic stoichiometric activators, ionic activators, and Lewis acid activators.
- Non-coordinating anions are those which are not degraded to neutrality when the initially formed complex decomposes. Further, the anion will not transfer an anionic substituent or fragment to the cation so as to cause it to form a neutral transition metal compound and a neutral by-product from the anion.
- Non-coordinating anions useful in accordance with this invention are those that are compatible, stabilize the transition metal cation in the sense of balancing its ionic charge at +1, and yet retain sufficient lability to permit displacement during polymerization.
- an ionizing or stoichiometric activator such as tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate, a tris perfluorophenyl boron metalloid precursor or a tris perfluoronaphthyl boron metalloid precursor, polyhalogenated heteroborane anions (WO 98/43983), boric acid (US 5,942,459), or combination thereof. It is also within the scope of this invention to use neutral or ionic activators alone or in combination with alumoxane or modified alumoxane activators.
- the catalyst systems of this invention can include at least one non-coordinating anion (NCA) activator.
- NCA non-coordinating anion
- Z is (L-H) or a reducible Lewis acid
- L is a neutral Lewis base
- H is hydrogen
- (L-H) is a Bronsted acid
- a d_ is a boron containing non-coordinating anion having the charge d-
- d is 1, 2, or 3.
- the cation component, Z d + may include Bronsted acids such as protons or protonated
- Lewis bases or reducible Lewis acids capable of protonating or abstracting a moiety, such as an alkyl or aryl, from the bulky ligand metallocene containing transition metal catalyst precursor, resulting in a cationic transition metal species.
- the activating cation Z d + may also be a moiety such as silver, tropylium, carboniums, ferroceniums and mixtures, preferably carboniums and ferroceniums. Most preferably Z d + is triphenyl carbonium.
- Preferred reducible Lewis acids can be any triaryl carbonium (where the aryl can be substituted or unsubstituted, such as those represented by the formula: (Ar 3 C+), where Ar is aryl or aryl substituted with a heteroatom, a Q to C 40 hydrocarbyl, or a substituted Ci to C 4 o hydrocarbyl), preferably the reducible Lewis acids in formula (14) above as "Z" include those represented by the formula: (Ph 3 C), where Ph is a substituted or unsubstituted phenyl, preferably substituted with C 1 to C 40 hydrocarbyls or substituted a C 1 to C 40 hydrocarbyls, preferably C 1 to C 2 o alkyls or aromatics or substituted C 1 to C 20 alkyls or aromatics, preferably Z is a triphenylcarbonium.
- Z d + is the activating cation (L-H) d +, it is preferably a Bronsted acid, capable of donating a proton to the transition metal catalytic precursor resulting in a transition metal cation, including ammoniums, oxoniums, phosphoniums, silyliums, and mixtures thereof, preferably ammoniums of methylamine, aniline, dimethylamine, diethylamine, N- methylaniline, diphenylamine, trimethylamine, triethylamine, N,N-dimethylaniline, methyldiphenylamine, pyridine, p-bromo ⁇ , ⁇ -dimethylaniline, p-nitro-N,N-dimethylaniline, phosphoniums from trie thy lphosphine, triphenylphosphine, and diphenylphosphine, oxoniums from ethers such as dimethyl ether diethyl ether, tetra
- each Q is a fluorinated hydrocarbyl group having 1 to 20 carbon atoms, more preferably each Q is a fluorinated aryl group, and most preferably each Q is a pentafluoryl aryl group.
- suitable A d ⁇ also include diboron compounds as disclosed in US 5,447,895, which is fully incorporated herein by reference.
- boron compounds which may be used as an activating cocatalyst are the compounds described as (and particularly those specifically listed as) activators in US 8,658,556, which is incorporated by reference herein.
- the ionic stoichiometric activator Z d + (A d ⁇ ) is one or more of N,N- dimethylanilinium tetra(perfluorophenyl)borate, N,N-dimethylanilinium tetrakis(perfluoronaphthyl)borate, ⁇ , ⁇ -dimethylanilinium tetrakis(perfluorobiphenyl)borate, ⁇ , ⁇ -dimethylanilinium tetrakis(3 ,5-bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, triphenylcarbenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, or triphenylcarbenium tetra(perfluoroph
- each R x is, independently, a halide, preferably a fluoride
- Ar is substituted or unsubstituted aryl group (preferably a substituted or unsubstituted phenyl), preferably substituted with C 1 to C 40 hydrocarbyls, preferably C 1 to C 2 o alkyls or aromatic s;
- each R 2 is, independently, a halide, a C 6 to C 20 substituted aromatic hydrocarbyl group or a siloxy group of the formula -0-Si-R a , where R a is a Q to C 20 hydrocarbyl or hydrocarbylsilyl group (preferably R 2 is a fluoride or a perfluorinated phenyl group);
- each R 3 is a halide, C 6 to C 20 substituted aromatic hydrocarbyl group or a siloxy group of the formula -0-Si-R a , where R a is a C 1 to C 20 hydrocarbyl or hydrocarbylsilyl group (preferably R 3 is a fluoride or a C 6 perfluorinated aromatic hydrocarbyl group); wherein R 2 and R 3 can form one or more saturated or unsaturated, substituted or unsubstituted rings (preferably R 2 and R 3 form a perfluorinated phenyl ring);
- L is a neutral Lewis base
- (L-H)+ is a Bronsted acid
- d is 1, 2, or 3;
- the anion has a molecular weight of greater than 1020 g/mol
- (Ar 3 C) d + is (Ph 3 C) d +, where Ph is a substituted or unsubstituted phenyl, preferably substituted with C 1 to C 40 hydrocarbyls or substituted C 1 to C 40 hydrocarbyls, preferably Q to C 20 alkyls or aromatics or substituted Q to C 20 alkyls or aromatics.
- Molecular volume is used herein as an approximation of spatial steric bulk of an activator molecule in solution. Comparison of substituents with differing molecular volumes allows the substituent with the smaller molecular volume to be considered “less bulky” in comparison to the substituent with the larger molecular volume. Conversely, a substituent with a larger molecular volume may be considered “more bulky” than a substituent with a smaller molecular volume. Molecular volume may be calculated as reported in "A Simple 'Back of the Envelope' Method for Estimating the Densities and Molecular Volumes of Liquids and Solids," Journal of Chemical Education, Vol. 71, No. 11, November 1994, pp. 962-964.
- MV Molecular volume
- V s the scaled volume.
- V s the sum of the relative volumes of the constituent atoms, and is calculated from the molecular formula of the substituent using the following table of relative volumes. For fused rings, the V s is decreased by 7.5% per fused ring.
- one or more of the NCA activators is chosen from the activators described in US 6,211,105.
- Preferred activators include ⁇ , ⁇ -dimethylanilinium tetrakis(perfluoronaphthyl)borate, ⁇ , ⁇ -dimethylanilinium tetrakis(perfluorobiphenyl)borate, N,N-dimethylanilinium tetrakis(perfluorophenyl)borate, ⁇ , ⁇ -dimethylanilinium tetrakis(3,5- bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, triphenylcarbenium tetrakis(3,5- bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluorophenyl)borate, [Ph 3 C+] [B(C 6 F 5
- the activator comprises a triaryl carbonium (such as triphenylcarbenium tetraphenylborate, triphenylcarbenium tetrakis(pentafluorophenyl)borate, triphenylcarbenium tetrakis-(2,3 ,4,6-tetrafluorophenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, or triphenylcarbenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate).
- a triaryl carbonium such as triphenylcarbenium tetraphenylborate, triphenylcarbenium tetrakis(pentafluorophenyl)borate, triphenylcarbenium tetrakis-(2,3 ,4,
- the activator comprises one or more of trialkylammonium tetrakis(pentafluorophenyl)borate, ⁇ , ⁇ -dialkylanilinium tetrakis(pentafluorophenyl)borate, N,N-dimethyl- (2,4, 6- trimethylanilinium) tetrakis (pentafluorophenyl)borate, trialkylammonium tetrakis-(2,3,4,6-tetrafluorophenyl) borate, ⁇ , ⁇ -dialkylanilinium tetrakis- (2,3,4,6-tetrafluorophenyl)borate, trialkylammonium tetrakis(perfluoronaphthyl)borate, N,N- dialkylanilinium tetrakis(perfluoronaphthyl)borate, trialkylammonium tetrakis(perfluorobiphenyl)
- the typical activator-to-catalyst ratio e.g., all NCA activators-to-catalyst ratio is about a 1 : 1 molar ratio.
- Alternate preferred ranges include from 0.1: 1 to 100: 1, alternately from 0.5: 1 to 200: 1, alternately from 1 : 1 to 500: 1, alternately from 1: 1 to 1000: 1.
- a particularly useful range is from 0.5: 1 to 10: 1, preferably 1 : 1 to 5: 1.
- the catalyst compounds can be combined with combinations of alumoxanes and NCA's (see, for example, US 5,153,157; US 5,453,410; EP 0 573 120; WO 94/07928; and WO 95/14044, which discuss, inter alia, the use of an alumoxane in combination with an ionizing activator).
- the catalyst system may further include scavengers and/or co- activators.
- the catalyst system when using the complexes described herein, particularly when they are immobilized on a support, the catalyst system will additionally comprise one or more scavenging compounds.
- scavenging compound means a compound that removes polar impurities from the reaction environment.
- a scavenger is typically added to facilitate polymerization by scavenging impurities.
- Some scavengers may also act as activators and may be referred to as co-activators.
- a co-activator, that is not a scavenger may also be used in conjunction with an activator in order to form an active catalyst.
- a co-activator can be pre-mixed with the transition metal compound to form an alkylated transition metal compound.
- the scavenging compound will be an organometallic compound such as the Group-13 organometallic compounds of US 5,153,157; US 5,241,025; WO-A-91/09882; WO-A-94/03506; WO-A-93/14132; and that of WO 95/07941.
- organometallic compounds include triethyl aluminum, triethyl borane, tri-wo-butyl aluminum, methyl alumoxane, iso- butyl alumoxane, and tri-n-octyl aluminum.
- scavenging compounds having bulky or C 6 -C 2 o linear hydrocarbyl substituents connected to the metal or metalloid center usually minimize adverse interaction with the active catalyst.
- examples include triethylaluminum, but more preferably, bulky compounds such as tri-z ' so-butyl aluminum, tri-z ' so-prenyl aluminum, and long-chain linear alkyl-substituted aluminum compounds, such as tri-n-hexyl aluminum, tri-n-octyl aluminum, or tri-n-dodecyl aluminum.
- alumoxane is used as the activator, any excess over that needed for activation will scavenge impurities and additional scavenging compounds may be unnecessary.
- the scavengers are present at less than 14 wt%, or from 0.1 to 10 wt%, or from 0.5 to 7 wt%, by weight of the catalyst system.
- Suitable aluminum alkyl or organoaluminum compounds which may be utilized as co- activators include, for example, trimethylaluminum, triethylaluminum, triisobutylaluminum, tri-n-hexylaluminum, tri-n-octylaluminum and the like.
- the co-activators are present at less than 14 wt%, or from 0.1 to 10 wt%, or from 0.5 to 7 wt%, by weight of the catalyst system.
- the complex-to-co-activator molar ratio is from 1:100 to 100:1; 1:75 to 75:1; 1:50 to 50:1; 1:25 to 25:1; 1:15 to 15:1; 1:10 to 10:1; 1:5 to 5:1; 1:2 to 2:1; 1:100 to 1: 1; 1:75 to 1:1; 1:50 to 1:1; 1:25 to 1:1; 1: 15 to 1: 1; 1:10 to 1:1; 1:5 to 1:1; 1:2 to 1:1; 1:10 to 2:1.
- CTAs Chain Transfer Agents
- a “chain transfer agent” is any agent capable of hydrocarbyl and/or polymeryl group exchange between a coordinative polymerization catalyst and the metal center of the chain transfer agent during a polymerization process.
- the chain transfer agent can be any desirable chemical compound such as those disclosed in WO 2007/130306.
- the chain transfer agent is selected from Group 2, 12, or 13 alkyl or aryl compounds; preferably zinc, magnesium or aluminum alkyls or aryls; preferably where the alkyl is a Ci to C30 alkyl, alternately a C2 to C20 alkyl, alternately a C3 to C12 alkyl, typically selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, cyclohexyl, phenyl, octyl, nonyl, decyl, undecyl, and dodecyl; and where di-ethylzinc is particularly preferred.
- this invention relates to a catalyst system comprising activator, catalyst complex as described herein, and chain transfer agent wherein the chain transfer agent is selected from Group 2, 12, or 13 alkyl or aryl compounds.
- the chain transfer agent is selected from dialkyl zinc compounds, where the alkyl is selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, cyclohexyl, and phenyl.
- the chain transfer agent is selected from trialkyl aluminum compounds, where the alkyl is selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, and cyclohexyl.
- the chain transfer agent is selected from tri aryl aluminum compounds where the aryl is selected from phenyl and substituted phenyl.
- the inventive process may be characterized by the transfer of at least 0.5 polymer chains (preferably 0.5 to 3) polymer chains, where n is the maximum number of polymer chains that can be transferred to the chain transfer agent metal, preferably n is 1 to 3 for trivalent metals (such as Al) and 1 to 2 for divalent metals (such as Zn), preferably n is 1.5 to 3 for trivalent metals (such as Al) and 1.5 - 2 for divalent metals (such as Zn).
- the number of chains transferred per metal is the slope of the plot of moles of polymer produced versus the moles of the chain transfer agent metal (as determined from at least four points, CTA metahcatalyst transition metal of 20: 1, 80:1, 140:1 and 200:1, using least squares fit (MicrosoftTM Excel 2010, version 14.0.7113.5000 (32bit)) to draw the line.
- CTA metahcatalyst transition metal 20: 1, 80:1, 140:1 and 200:1, using least squares fit (MicrosoftTM Excel 2010, version 14.0.7113.5000 (32bit)
- Useful chain transfer agents are typically present at from 10 or 20 or 50 or 100 equivalents to 600 or 700 or 800 or 1000 or 2000 or 4000 equivalents relative to the catalyst component.
- the chain transfer agent is preset at a catalyst complex-to-CTA molar ratio of from about 1: 12,000 to 10:1; alternatively 1:6,000; alternatively, 1:3,000 to 10:1; alternatively 1:2,000 to 10: 1; alternatively 1:1,000 to 10:1; alternatively, 1:500 to 1:1; alternatively 1:300 to 1:1; alternatively 1:200 to 1:1; alternatively 1: 100 to 1:1; alternatively 1:50 to 1:1; alternatively 1:10 to 1:1.
- Useful chain transfer agents include diethylzinc, tri-n-octyl aluminum, trimethylaluminum, triethylaluminum, tri-isobutylaluminum, tri-n-hexylaluminum, diethyl aluminum chloride, dibutyl zinc, di-n-propylzinc, di-n-hexylzinc, di-n-pentylzinc, di-n- decylzinc, di-n-dodecylzinc, di-n-tetradecylzinc, di-n-hexadecylzinc, di-n-octadecylzinc, diphenylzinc, diisobutylaluminum hydride, diethylaluminum hydride, di-n-octylaluminum hydride, dibutylmagnesium, diethylmagnesium, dihexylmagnesium, and triethylboro
- two or more complexes are combined with diethyl zinc and/or tri-n-octylaluminum in the same reactor with monomer(s).
- one or more complexes is/are combined with another catalyst (such as a metallocene) and diethyl zinc and/or tri-n-octylaluminum in the same reactor with monomer(s).
- one or more complexes is/are combined with a mixture of diethyl zinc and an aluminum reagent in the same reactor with monomer(s).
- one or more complexes is/are combined with two chain transfer agents in the same reactor with monomer(s).
- the complexes described herein may be supported (with or without an activator) by any method effective to support other coordination catalyst systems, effectively meaning that the catalyst so prepared can be used for oligomerizing or polymerizing olefin in a heterogeneous process.
- the catalyst precursor, activator, co- activator, if needed, suitable solvent, and support may be added in any order or simultaneously.
- the complex and activator may be combined in solvent to form a solution. Then the support is added, and the mixture is stirred for 1 minute to 10 hours.
- the total solution volume may be greater than the pore volume of the support, but some embodiments limit the total solution volume below that needed to form a gel or slurry (about 90% to 400%, preferably about 100 to 200% of the pore volume).
- the residual solvent is removed under vacuum, typically at ambient temperature and over 10-16 hours. But greater or lesser times and temperatures are possible.
- the complex may also be supported absent the activator; in that case, the activator (and co-activator if needed) is added to a polymerization process's liquid phase. Additionally, two or more different complexes may be placed on the same support. Likewise, two or more activators or an activator and co-activator may be placed on the same support.
- Suitable solid particle supports are typically comprised of polymeric or refractory oxide materials, each being preferably porous.
- any support material that has an average particle size greater than 10 ⁇ is suitable for use in this invention.
- a porous support material such as for example, talc, inorganic oxides, inorganic chlorides, for example, magnesium chloride and resinous support materials such as polystyrene polyolefin or polymeric compounds or any other organic support material and the like.
- Some embodiments select inorganic oxide materials as the support material including Group -2, -3, -4, -5, -13, or -14 metal or metalloid oxides.
- the catalyst support materials select to include silica, alumina, silica-alumina, and their mixtures.
- Other inorganic oxides may serve either alone or in combination with the silica, alumina, or silica- alumina. These are magnesia, titania, zirconia, and the like.
- Lewis acidic materials such as montmorillonite and similar clays may also serve as a support.
- the support can, optionally, double as the activator component, however, an additional activator may also be used.
- the support material may be pretreated by any number of methods. For example, inorganic oxides may be calcined, chemically treated with dehydroxylating agents, such as aluminum alkyls and the like, or both.
- polymeric carriers will also be suitable in accordance with the invention, see for example the descriptions in WO 95/15815 and US 5,427,991.
- the methods disclosed may be used with the catalyst complexes, activators or catalyst systems of this invention to adsorb or absorb them on the polymeric supports, particularly if made up of porous particles, or may be chemically bound through functional groups bound to or in the polymer chains.
- Useful supports typically have a surface area of from 10-700 m 2 /g, a pore volume of
- 0.1-4.0 cc/g and an average particle size of 10-500 ⁇ Some embodiments select a surface area of 50-500 m 2 /g, a pore volume of 0.5-3.5 cc/g, or an average particle size of 10-200 ⁇ . Other embodiments select a surface area of 100-400 m 2 /g, a pore volume of 0.8-3.0 cc/g, and an average particle size of 50-100 ⁇ .
- Useful supports typically have a pore size of 10-1000 Angstroms, alternatively 50-500 Angstroms, or 75-350 Angstroms.
- the catalyst complexes described herein are generally deposited on the support at a loading level of 10-100 micromoles of complex per gram of solid support; alternately 20-80 micromoles of complex per gram of solid support; or 40-60 micromoles of complex per gram of support. But greater or lesser values may be used provided that the total amount of solid complex does not exceed the support's pore volume.
- Inventive catalyst complexes are useful in polymerizing unsaturated monomers conventionally known to undergo metallocene-catalyzed polymerization such as solution, slurry, gas-phase, and high-pressure polymerization.
- unsaturated monomers conventionally known to undergo metallocene-catalyzed polymerization
- one or more of the complexes described herein, one or more activators, and one or more monomers are contacted to produce polymer.
- the complexes may be supported and as such will be particularly useful in the known, fixed-bed, moving-bed, fluid-bed, slurry, solution, or bulk operating modes conducted in single, series, or parallel reactors.
- One or more reactors in series or in parallel may be used in the present invention.
- the complexes, activator and when required, co-activator may be delivered as a solution or slurry, either separately to the reactor, activated in-line just prior to the reactor, or preactivated and pumped as an activated solution or slurry to the reactor.
- Polymerizations are carried out in either single reactor operation, in which monomer, comonomers, catalyst/activator/co-activator, optional scavenger, and optional modifiers are added continuously to a single reactor or in series reactor operation, in which the above components are added to each of two or more reactors connected in series.
- the catalyst components can be added to the first reactor in the series.
- the catalyst component may also be added to both reactors, with one component being added to first reaction and another component to other reactors.
- the complex is activated in the reactor in the presence of olefin.
- the polymerization process is a continuous process.
- Polymerization processes used herein typically comprise contacting one or more alkene monomers with the complexes (and, optionally, activator) described herein.
- alkenes are defined to include multi-alkenes (such as dialkenes) and alkenes having just one double bond.
- Polymerization may be homogeneous (solution or bulk polymerization) or heterogeneous (slurry - in - liquid diluent, or gas phase - in - gaseous diluent).
- the complex and activator may be supported.
- Silica is useful as a support herein. Chain transfer agents may also be used herein.
- the present polymerization processes may be conducted under conditions preferably including a temperature of about 30°C to about 200°C, preferably from 60°C to 195°C, preferably from 75 °C to 190°C.
- the process may be conducted at a pressure of from 0.05 MPa to 1500 MPa. In a preferred embodiment, the pressure is between 1.7 MPa and 30 MPa, or in another embodiment, especially under supercritical conditions, the pressure is between 15 MPa and 1500 MPa.
- Monomers useful herein include olefins having from 2 to 20 carbon atoms, alternately 2 to 12 carbon atoms (preferably ethylene, propylene, butylene, pentene, hexene, heptene, octene, nonene, decene, and dodecene) and, optionally, also polyenes (such as dienes).
- Particularly preferred monomers include ethylene, and mixtures of C2 to C10 alpha olefins, such as ethylene-propylene, ethylene-hexene, ethylene-octene, propylene -hexene, and the like.
- the complexes described herein are also particularly effective for the polymerization of ethylene, either alone or in combination with at least one other olefinically unsaturated monomer, such as a C3 to C20 a-olefin, and particularly a C3 to C12 a-olefin.
- the present complexes are also particularly effective for the polymerization of propylene, either alone or in combination with at least one other olefinically unsaturated monomer, such as ethylene or a C 4 to C20 a-olefin, and particularly a C 4 to C20 a-olefin.
- Examples of preferred a-olefins include ethylene, propylene, butene-1, pentene-1, hexene-1, heptene-1, octene-1, nonene-1, decene-1, dodecene-1, 4-methylpentene-l, 3-methylpentene-l, 3,5,5- trimethylhexene-1, and 5-ethylnonene-l.
- the monomer mixture may also comprise one or more dienes at up to 10 wt%, such as from 0.00001 to 1.0 wt%, for example, from 0.002 to 0.5 wt%, such as from 0.003 to 0.2 wt%, based upon the monomer mixture.
- Non-limiting examples of useful dienes include, cyclopentadiene, norbornadiene, dicyclopentadiene, 5-ethylidene-2- norbornene ("ENB"), 5-vinyl-2-norbornene, 1,4-hexadiene, 1,5-hexadiene, 1,5-heptadiene, 1,6-heptadiene, 6-methyl-l,6-heptadiene, 1,7-octadiene, 7-methyl-l,7-octadiene, 1,9- decadiene, 1 and 9-methyl-l,9-decadiene.
- ENB 5-ethylidene-2- norbornene
- the monomers comprise ethylene and one or more C3 to C12 alkenes, such as propylene.
- Particularly preferred monomers combinations include: ethylene -propylene, ethylene- hexene, ethylene-octene, and the like.
- the catalyst systems may, under appropriate conditions, generate stereoregular polymers or polymers having stereoregular sequences in the polymer chains.
- the homopolymer and copolymer products produced by the present process may have an Mw of about 1,000 to about 2,000,000 g/mol, alternately of about 30,000 to about 600,000 g/mol, or alternately of about 100,000 to about 500,000 g/mol, as determined by GPC.
- Preferred polymers produced here may be homopolymers or copolymers.
- the comonomer(s) are present at up to 50 mol%, preferably from 0.01 to 40 mol%, preferably 1 to 30 mol%, preferably from 5 to 20 mol%.
- a multimodal polyolefin composition comprising a first polyolefin component and at least another polyolefin component, different from the first polyolefin component by molecular weight, preferably such that the GPC trace has more than one peak or inflection point.
- the homopolymer and copolymer products produced by the present process may have an Mw of about 1,000 to about 2,000,000 g/mol, alternately of about 30,000 to about 600,000 g/mol, or alternately of about 100,000 to about 500,000 g/mol, as determined by GPC-SEC.
- the homopolymer and copolymer products produced by the present process may have a multi-modal, such as bimodal, Mw/Mn.
- multimodal when used to describe a polymer or polymer composition, means “multimodal molecular weight distribution,” which is understood to mean that the Gel Permeation Chromatography (GPC-SEC) trace, plotted as Absorbance versus Retention Time (seconds), has more than one peak or inflection point.
- An “inflection point” is that point where the second derivative of the curve changes in sign (e.g., from negative to positive or vice versa).
- a polyolefin composition that includes a first lower molecular weight polymer component (such as a polymer having an Mw of 100,000 g/mol) and a second higher molecular weight polymer component (such as a polymer having an Mw of 300,000 g/mol) is considered to be a "bimodal" polyolefin composition.
- a first lower molecular weight polymer component such as a polymer having an Mw of 100,000 g/mol
- a second higher molecular weight polymer component such as a polymer having an Mw of 300,000 g/mol
- the polymer produced herein has an Mw/Mn of from 1 to 40, alternately from greater than 1 to 5.
- Articles made using polymers produced herein may include, for example, molded articles (such as containers and bottles, e.g., household containers, industrial chemical containers, personal care bottles, medical containers, fuel tanks, and storage ware, toys, sheets, pipes, tubing) films, non-wovens, and the like. It should be appreciated that the list of applications above is merely exemplary, and is not intended to be limiting.
- [fbCOJx is paraformaldehyde.
- the filtrate was concentrated under reduced pressure and the residue was partially purified on an AnaLogix column (120 g), eluting with a gradient of 0 to 40% toluene in heptanes.
- the mixed fractions were purified on an AnaLogix column (25 g) eluting with a gradient of 0 to 40% toluene in heptanes.
- the clean material from each column was combined to compound A- 3 (7.7 g, 72% yield) as a colorless oil that slowly solidified.
- the layers were separated and the aqueous layer was extracted with dichloromethane (100 mL). The combined organic layers were dried over sodium sulfate and concentrated under reduced pressure.
- the crude reside was dry loaded onto silica (8 g) and partially purified on an AnaLogix column (40 g), eluting with a gradient of 0 to 100% ethyl acetate in heptanes.
- the mixed fractions from the first column were partially purified on an AnaLogix column (40 g), eluting with a gradient of 0 to 100% methyl tert-butyl ether in heptanes.
- the mixed fractions from the second column were partially purified in batches, two runs on an AnaLogix Reverse Phase column (100 g) and seven runs on an AnaLogix Reverse Phase column (50 g), eluting each batch with a gradient of 0 to 100% tetrahydrofuran in deionized water.
- the mixed fractions from the reverse phase columns were partially purified on an AnaLogix column (12 g) eluting isocratically with a solution of 98:2: 1 dichlorome thane: methyl tert-butyl ether:ammonia.
- the mixed fractions were partially purified on an AnaLogix column (25 g), eluting isocratically with a solution of 98:2:1 dichloromethane: methyl tert-butyl ether:ammonia.
- the mixed fractions were purified one last time on an AnaLogix column (12 g), eluting isocratically with a solution of 98:2: 1 dichloromethane: methyl tert-butylether: ammonia. All of the clean material was combined to give compound A-6 (1.42 g, 42% yield) as a white solid.
- the solution was stirred at room temperature overnight.
- the solution was filtered and the filtrate was partially concentrated under reduced pressure and filtered again.
- the solids from each filtration were combined, dissolved in dichloromethane and dry loaded onto Celite (10 g).
- the dry loaded solid was then partially purified on an AnaLogix column (120 g), eluting with a gradient of 0 to 25% ethyl acetate in heptanes.
- the mixed fractions from the first column were combined and dry loaded onto Celite (5 g) and partially purified on an AnaLogix column (80 g), eluting with a gradient of 0 to 25% ethyl acetate in heptanes.
- Polymerization-grade ethylene (C2) was used and further purified by passing the gas through a series of columns: 500 cc Oxyclear cylinder from Labclear (Oakland, CA) followed yb a 500 cc column packed with dried 3 A mole sieves (8-12 mesh; Aldrich Chemical Company) and a 500 cc column packed with dried 5A mole sieves (8-12 mesh; Aldrich Chemical Company).
- Polymerization grade propylene (C3) was used and further purified by passing it through a series of columns: 2250 cc Oxiclear cylinder from Labclear followed by a 2250 cc column packed with 3 A mole sieves (8-12 mesh; Aldrich Chemical Company), then two 500 cc columns in series packed with 5 A mole sieves (8-12 mesh; Aldrich Chemical Company), then a 500 cc column packed with Selexsorb CD (BASF), and finally a 500 cc column packed with Selexsorb COS (BASF).
- TNOAL tri-n-octylaluminum
- Activator- 1 tri-n-octylaluminum
- Concentration of the TNOAL solution in toluene ranged from 0.5 to 2.0 mmol/L.
- Polymerizations were carried out in a parallel, pressure reactor, as generally described in US 6,306,658; US 6,455,316; US 6,489,168; WO 00/09255; and Murphy et al., J. Am. Chem. Soc, 2003, 125, pp. 4306-4317, each of which is fully incorporated herein by reference.
- HDPE Ethylene Homopolymerization
- the aluminum and/or zinc compound in toluene was then injected as scavenger and/or chain transfer agent followed by addition of the activator solution (typically 1.0-1.2 molar equivalents of NN-dimethyl anilinium tetrakis- pentafluorophenyl borate - Activator- 1).
- the activator solution typically 1.0-1.2 molar equivalents of NN-dimethyl anilinium tetrakis- pentafluorophenyl borate - Activator- 1.
- the catalyst solution (typically 0.020-0.080 umol of metal complex) was injected into the reaction vessel and the polymerization was allowed to proceed until a pre-determined amount of ethylene (quench value typically 20 psi) had been used up by the reaction. Alternatively, the reaction may be allowed to proceed for a set amount of time (maximum reaction time typically 30 minutes). Ethylene was added continuously (through the use of computer controlled solenoid valves) to the autoclaves during polymerization to maintain reactor gauge pressure (+1-2 psig) and the reactor temperature was monitored and typically maintained within +/-1°C. The reaction was quenched by pressurizing the vessel with compressed air.
- the glass vial insert containing the polymer product and solvent was removed from the pressure cell and the inert atmosphere glove box, and the volatile components were removed using a Genevac HT-12 centrifuge and Genevac VC3000D vacuum evaporator operating at elevated temperature and reduced pressure.
- the vial was then weighed to determine the yield of the polymer product.
- the resultant polymer was analyzed by Rapid GPC (see below) to determine the molecular weight, by FT-IR (see below) to determine percent octene incorporation, and by DSC (see below) to determine melting point (Tm).
- the MAO solution was injected into the reaction vessel after the addition of 1- octene and prior to heating the vessel to the set temperature and pressurizing with ethylene. No additional aluminum reagent was used as scavenger during these runs.
- Equivalence is determined based on the mole equivalents relative to the moles of the transition metal in the catalyst complex.
- Ethylene-Propylene Copolymerization The reactor was prepared as described above and purged with propylene. Isohexane was then injected into each vessel at room temperature followed by a predetermined amount of propylene gas. The reactor was heated to the set temperature and pressurized with the required amount of ethylene while stirring at 800 rpm. The scavenger, activator (typically Activator- 1) and catalyst solutions were injected sequentially to each vessel and the polymerization was allowed to proceed as described previously.
- activator typically Activator- 1
- PP Propylene Homopolymerization
- the reactor was prepared as described above and purged with propylene. Isohexane was then injected into each vessel at room temperature followed by a predetermined amount of propylene gas. The reactor was heated to the set temperature while stirring at 800 rpm, and the scavenger, activator (typically Activator-1) and catalyst solutions were injected sequentially to each vessel. The polymerization was allowed to proceed as described previously.
- the reactor was prepared as described above and purged with 25% v/v H2/N2 gas. With an atmosphere of H2/N2 gas in the reaction vessel, isohexane, the scavenger solution and a predetermined amount of propylene gas were injected sequentially at room temperature. The reactor was then heated to the set temperature followed by sequential injection of the activator and catalyst solutions. The polymerization was allowed to proceed as described previously. For polymerizations using MAO as activator, the MAO solution was injected into the vessel after the addition of isohexane. No additional aluminum reagent was used as scavenger during these runs.
- EH ethylene-hexene copolymerization
- the reactor was prepared as described above and purged with propylene. Isohexane, the scavenger solution and a predetermined amount of propylene gas were added sequentially to the reaction vessels at room temperature. The reactor was then heated to the set temperature and pressurized with the required amount of ethylene while stirring at 800 rpm, followed by injection of the catalyst slurry. The polymerization was allowed to proceed as described previously.
- Propylene homopolymerizations were set up similar to EP copolymerizations less the addition of ethylene.
- the reactor was prepared as described above and purged with 25% v/v H2/N2 gas. With an atmosphere of H2/N2 gas in the reaction vessel, isohexane, the scavenger solution and a predetermined amount of propylene gas were injected sequentially at room temperature. The reactor was then heated to the set temperature followed by injection of the catalyst slurry. The polymerization was allowed to proceed as described previously.
- Polymer Characterization Polymer sample solutions were prepared by dissolving polymer in 1,2,4-trichlorobenzene (TCB, 99+% purity from Sigma- Aldrich) containing 2,6- di-tert-butyl-4-methylphenol (BHT, 99% from Aldrich) at 165°C in a shaker oven for approximately 3 hours.
- the typical concentration of polymer in solution was between 0.1 to 0.9 mg/mL with a BHT concentration of 1.25 mg BHT/mL of TCB.
- the system was operated at an eluent flow rate of 2.0 niL/minutes and an oven temperature of 165°C. 1,2,4-trichlorobenzene was used as the eluent.
- the polymer samples were dissolved in 1,2,4-trichlorobenzene at a concentration of 0.28 mg/mL and 400 uL of a polymer solution was injected into the system. The concentration of the polymer in the eluent was monitored using an evaporative light scattering detector. The molecular weights presented are relative to linear polystyrene standards and are uncorrected, unless indicated otherwise.
- DSC Differential Scanning Calorimetry
- the weight percent of ethylene incorporated in polymers was determined by rapid FT- IR spectroscopy on a Bruker Equinox 55+ IR in reflection mode. Samples were prepared in a thin film format by evaporative deposition techniques. FT-IR methods were calibrated using a set of samples with a range of known wt% ethylene content. For ethylene- 1-octene copolymers, the wt% octene in the copolymer was determined via measurement of the methyl deformation band at -1375 cm 1 . The peak height of this band was normalized by the combination and overtone band at -4321 cm 1 , which corrects for path length differences.
- the wt% ethylene is determined via measurement of the methylene rocking band (-770 cm 1 to 700cm 1 ). The peak area of this band is normalized by sum of the band areas of the combination and overtone bands in the 4500 cm “1 to 4000 cm 1 range. For samples with composition outside the calibration range, the wt% ethylene was determined by 3 ⁇ 4 NMR spectroscopy or estimated from the polymer Tm.
- Trisubstituted end-groups were measured as the number of trisubstituted groups per 1000 carbon atoms using the resonances between 5.3- 4.85 ppm, by difference from vinyls.
- Vinyl end-groups were measured as the number of vinyls per 1000 carbon atoms using the resonances between 5.9-5.65 and between 5.3-4.85 ppm.
- Vinylidene end-groups were measured as the number of vinylidenes per 1000 carbon atoms using the resonances between 4.85-4.65 ppm.
- DIBALO is bis(diisobuty aluminum)oxide. Entries 1-8 and 25-32 had 300 nmol of TNOAL in addition to the diethylzinc reagent. Mw corr and Mn corr correspond to the GPC values (based on polystyrene standards) for Mw and Mn, respectively, divided by 2 to correct for EO.
- Figure 2 shows chain transfer efficiency of 1-Zr (data from Table 14, Entries 1-24).
- the equation and coefficient of determination of the linear fits are included in the figure.
- the slope of the linear fit corresponds to the number of chains transferred to the CTA metal (per metal).
- the figure shows that diethylzinc is an effective CTA with 1-Zr.
- Figure 3 shows the chain transfer efficiency of 1-Hf (data from Table 14, Entries 1- 24).
- the equation and coefficient of determination of the linear fits are included in the figure.
- the slope of the linear fit corresponds to the number of chains transferred to the CTA metal (per metal).
- the figure shows that diethylzinc is an effective CTA with 1-Hf.
- Mw, Mn, and Mw/Mn are determined by using a High Temperature Size Exclusion Chromatograph (Polymer Laboratories), equipped with three in-line detectors, a differential refractive index detector (DRI), a light scattering (LS) detector, and a viscometer. Experimental details, including detector calibration, are described in: T. Sun, P. Brant, R. R. Chance, and W. W. Graessley, Macromolecules, Volume 34, Number 19, pp. 6812-6820, (2001), and references therein. Three Polymer Laboratories PLgel ⁇ Mixed-B LS columns are used.
- the nominal flow rate is 0.5 niL/min, and the nominal injection volume is 300 ⁇ .
- the various transfer lines, columns, viscometer and differential refractometer (the DRI detector) are contained in an oven maintained at 145°C.
- Solvent for the experiment is prepared by dissolving 6 grams of butylated hydroxytoluene as an antioxidant in 4 liters of Aldrich reagent grade 1, 2, 4 trichlorobenzene (TCB). The TCB mixture is then filtered through a 0.1 ⁇ Teflon filter. The TCB is then degassed with an online degasser before entering the Size Exclusion Chromatograph.
- Polymer solutions are prepared by placing dry polymer in a glass container, adding the desired amount of TCB, then heating the mixture at 160°C with continuous shaking for about 2 hours. All quantities are measured gravimetrically.
- the TCB densities used to express the polymer concentration in mass/volume units are 1.463 g/ml at room temperature and 1.284 g/ml at 145°C.
- the injection concentration is from 0.5 to 2.0 mg/ml, with lower concentrations being used for higher molecular weight samples.
- Prior to running each sample the DRI detector and the injector are purged. Flow rate in the apparatus is then increased to 0.5 ml/minute, and the DRI is allowed to stabilize for 8 to 9 hours before injecting the first sample.
- the LS laser is turned on at least 1 to 1.5 hours before running the samples.
- the concentration, c, at each point in the chromatogram is calculated from the baseline- subtracted DRI signal, IDRI, using the following equation:
- KDRI is a constant determined by calibrating the DRI
- (dn/dc) is the refractive index increment for the system.
- Units on parameters throughout this description of the GPC-SEC method are such that concentration is expressed in g/cm3, molecular weight is expressed in g/mole, and intrinsic viscosity is expressed in dL/g.
- the LS detector is a Wyatt Technology High Temperature DAWN HELEOS.
- M molecular weight at each point in the chromatogram is determined by analyzing the LS output using the Zimm model for static light scattering (M.B. Huglin, LIGHT SCATTERING FROM POLYMER SOLUTIONS, Academic Press, 1971):
- AR(6) is the measured excess Rayleigh scattering intensity at scattering angle ⁇
- c is the polymer concentration determined from the DRI analysis
- A2 is the second virial coefficient, for purposes of this invention
- A2 0.0006
- (dn/dc) is the refractive index increment for the system.
- ⁇ ( ⁇ ) is the form factor for a monodisperse random coil
- K 0 is the optical constant for the system:
- NA Avogadro 's number
- (dn/dc) the refractive index increment for the system.
- a high temperature Viscotek Corporation viscometer which has four capillaries arranged in a Wheatstone bridge configuration with two pressure transducers, is used to determine specific viscosity.
- One transducer measures the total pressure drop across the detector, and the other, positioned between the two sides of the bridge, measures a differential pressure.
- the specific viscosity, n s for the solution flowing through the viscometer is calculated from their outputs.
- the intrinsic viscosity, [ ⁇ ], at each point in the chromatogram is calculated from the following equation:
- the branching index (g'vis) is calculated using the output of the SEC-DRI-LS-VIS method as follows.
- ] a v g , of the sample is calculated by:
- the branching index g'vis is defined as:
- M v is the viscosity-average molecular weight based on molecular weights determined by LS analysis. See Macromolecules, 2001, 34, 6812-6820 and Macromolecules, 2005, 38, 7181-7183, for guidance on selecting a linear standard having similar molecular weight and comonomer content, and determining k coefficients and a exponents.
- compositions, an element, or a group of elements are preceded with the transitional phrase “comprising,” it is understood that we also contemplate the same composition or group of elements with transitional phrases “consisting essentially of,” “consisting of,” “selected from the group of consisting of,” or “is” preceding the recitation of the composition, element, or elements and vice versa.
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Abstract
Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
Description
TITLE: Phenolate Transition Metal Complexes, Production and Use Thereof
INVENTOR(s): Crisita Carmen H. Atienza, David A. Cano, Catherine Faler, and Kevin Ramirez
PRIORITY CLAIM
This application claims priority to and the benefit of USSN 62,368,247, filed July 29, 2016 and EP 16188648.6, filed September 13, 2016 and are incorporated by reference in their entirety.
FIELD OF THE INVENTION
The invention relates to phenolate ligands, phenolate transition metal complexes and processes for use of such complexes as catalysts for alkene polymerization processes, with or without chain transfer agents.
BACKGROUND OF THE INVENTION
Olefin polymerization catalysts are of great use in industry. Hence there is interest in finding new catalyst systems that increase the commercial usefulness of the catalyst and allow the production of polymers having improved properties.
Catalysts for olefin polymerization have been based on bisphenolate complexes as catalyst precursors, which are typically activated with an alumoxane or with an activator containing a non-coordinating anion.
Diamine bis(phenolate) Group IV complexes have been used as transition metal components in the copolymerization of ethylene and hexene, see for example, Macromolecules 2005, 38, 2552-2558, and in the homopolymerization of 1-hexene, see for example J. Am. Chem. Soc. 2000, 122, 10706, and propylene, see for example, Macromolecules 2010, 43, 1689.
WO 2002/036638 and WO 2012/098521 disclose diamine bis (phenolate) compounds for use as alpha olefin polymerization catalysts.
WO 2012/027448 and WO 2003/091262 disclose bridged bis(phenyl phenol) compounds for olefin polymerization catalysts.
US 8,071,701 discloses bridged polydentate catalyst complexes that produce low molecular weight (approx. 21,000 Mw or less) homopolypropylene where the examples have one carbon in the bridge.
Other references of interest include: WO 2016/003878; WO 2016/003879; US 6,841,502; US 6,596,827; WO 2014/143202; WO 2014/022746; WO 2014/022010; WO 2014/022012; WO 2014/22008; WO 2014/022011;
WO 2015/088819; US 8,791,217; US 7,812,104; US 6,232,421; US 6,333,389; US 6,333,423; US 8,907,032; WO 2007/130306; Israel Journal of Chemistry, Volume 42, 2002 pg. 373-381; Macromolecules, 2007, 40, 7061-7064; Chem. Comm. 2000, 379-380; Organometallics, 2001, 20, 3017-3028; Organometallics, 2005, 24, 200-202; Organometallics, 2009, 28, 1391-1405; Journal of Polymer Science, Part A: Polymer Chemistry, 2013, 51, 593-600; WO 2014/070502; US 2016/0280722; US 2017/0096509; Organometallics, 2002, 662-670; WO 2013/096573; Macromolecules 2013, 46, 2569-2575; J. Am. Chem. Soc, 2010, 132, 5566-5567; Macromolecules 2013, 46, 6758-6764; WO 2016/094861; WO 2016/089935; WO 2006/020624; US 2006/0025548; US 2006/0052554; WO 2005/108406; US 2006/0024517; US 8,957,171; US 8,957,172; US 8,952,114; US 9,045,568; US 9,365,661; US 9,382,349; US 8,937,137; US 9,150,676; US 9,200,100; US 9,200,099; US 9,290,589; US 9,534,070; US 2015/0291713; US 2015/0337062; US 2015/0344601; US 9,000,108; US 9,422,383; US 8,609,794 and US 9,193,813.
There still is need for adding to the range of catalysts complexes that may be prepared and broaden their performance in alkene polymerization. Further, there is a need in the art for new catalysts with high activity that can produce crystalline polymers with good molecular weights.
SUMMARY OF INVENTION
This invention relates to li ands represented by the formula (A):
(A)
where each Q is a neutral group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R3 is not present when Q is a Group 16 atom;
R2
( * y
each L is independently R2 and is not part of an aromatic ring;
y is greater than or equal to 2;
R1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups;
each Ra, Rb, Rc, Rd, Re, Rf, Rg, and Rh is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
each R2 is independently a hydrogen, a C1-C40 hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic; and
each R3 is independently a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
This invention relates to transition metal com lexes represented by the formula (I):
wherein M is a Group 4 transition metal;
each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R3 is not present when Q is a Group 16 atom;
R2
— (f¼-
R2
each L is independently and is not part of an aromatic ring;
y is greater than or equal to 2;
X1 and X2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure;
R1 is a divalent Ci-C4o hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking between the two Q groups;
each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
each R2 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic; and
each R3 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
This invention relates to transition metal com lexes represented by the formula (II)
wherein M is a Group 4 transition metal;
each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R3 is not present when Q is a Group 16 atom;
X1 and X2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4 to C62 cyclic, polycyclic, or heterocyclic structure;
R1 is a divalent Ci-C4o hydrocarbyl radical or divalent substituted hydrocarbyl radical
comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups;
each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
each R2 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic, polycyclic or heterocyclic structure is not aromatic; and
each R3 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
This invention also relates to a catalyst system comprising an activator and one or more catalysts compounds described herein.
This invention also relates to a process to make polyolefin using the catalyst systems described herein.
This invention further relates to methods to polymerize olefins using the above complex in the presence of a chain transfer agent.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a representation of 1-Zr.
Figure 2 is a plot of the chain transfer efficiency of catalyst 1-Zr from Table 14, which is based on the number of polymer chains transferred to each mole of metal of the chain transfer agent.
Figure 3 is a plot of the chain transfer efficiency of catalyst 1-Hf from Table 14 which is based on the number of polymer chains transferred to each mole of metal of the chain transfer agent.
Figure 4 is the ^NMR spectrum for compound A-6 in CD2CI2.
Figure 5 is the ^NMR spectrum for compound B-4 in CD2CI2.
Figure 6 is the ^NMR spectrum for compound 1-Zr in CD2CI2.
Figure 7 is the ^NMR spectrum for compound 1-Hf in CD2CI2.
Figure 8 is the ^NMR spectrum for compound 2-Zr in CD2CI2.
Figure 9 is the ^NMR spectrum for compound 2-Hf in CD2CI2.
Figure 10 is the GPC data for Table 1, Entry 25 (catalyst = 1-Zr; polymer = HDPE).
Figure 11 is the GPC data for Table 1, Entry 27 (catalyst = 1-Hf; polymer = HDPE).
Figure 12 is the GPC data for Table 6, Entry 6 (catalyst = 1-Zr; polymer = EP).
Figure 13 is the GPC data for Table 6, Entry 12 (catalyst = 1-Hf; polymer = EP).
Detailed Description of the Invention
The specification describes transition metal complexes. The term complex is used to describe molecules in which an ancillary ligand is coordinated to a central transition metal atom. The ligand is bulky and stably bonded to the transition metal so as to maintain its influence during use of the catalyst, such as polymerization. The ligand may be coordinated to the transition metal by covalent bond and/or electron donation coordination or intermediate bonds. The transition metal complexes are generally subjected to activation to perform their polymerization or oligomerization function using an activator, which is believed to create a cation as a result of the removal of an anionic group, often referred to as a leaving group, from the transition metal.
In the structures depicted throughout this specification and the claims, a solid line indicates a bond, an arrow indicates that the bond may be active, and each dashed line represents a bond having varying degrees of covalency and a varying degree of coordination.
As used herein, the numbering scheme for the Periodic Table groups is the new notation as set out in Chemical and Engineering News, 63(5), 27 (1985).
As used herein, Me is methyl, Et is ethyl, Bu is butyl, t-Bu and ¾u are tertiary butyl, Pr is propyl, iPr and ΨΓ are isopropyl, Cy is cyclohexyl, THF (also referred to as thf) is tetrahydrofuran, Bn is benzyl, [FhCOJx is paraformaldehyde, and Ph is phenyl.
The terms "hydrocarbyl radical," "hydrocarbyl," and "hydrocarbyl group" are used interchangeably throughout this document unless otherwise specified. For purposes of this disclosure, a hydrocarbyl radical is defined to be Ci to C70 radicals, or Ci to C20 radicals, or Ci to Cio radicals, or Ce to C70 radicals, or Ce to C20 radicals, or C7 to C20 radicals that may be linear, branched, or cyclic (including polycyclic) and aromatic or non-aromatic.
For purposes herein, a carbazole radical or substituted carbazole radical is represented by the formula:
wherein each R1 through R8 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical,
functional group comprising elements from Group 13 to 17 of the Periodic Table of the Elements, or two or more of R1 to R8 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof.
A substituted or unsubs sented by the formula:
wherein each R1 through R8 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a functional group comprising elements from Group 13 to 17 of the periodic table of the elements, or two or more of R1 to R8 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof; R* is a hydrogen, a Ci-C4o hydrocarbyl radical, a substituted Ci-C4o hydrocarbyl radical (preferably R* is methyl, phenyl, or substituted phenyl).
The term "catalyst system" is defined to mean a complex/activator pair. When "catalyst system" is used to describe such a pair before activation, it means the unactivated catalyst complex (precatalyst) together with an activator, optionally, a chain transfer agent, and, optionally, a co-activator. When it is used to describe such a pair after activation, it means the activated complex and the activator or other charge-balancing moiety. The transition metal compound may be neutral as in a precatalyst, or a charged species with a counter ion as in an activated catalyst system.
Complex, as used herein, is also often referred to as catalyst precursor, precatalyst, catalyst, catalyst compound, transition metal compound, or transition metal complex. These words are used interchangeably.
A "neutral donor group" is a neutrally charged group which donates one or more pairs of electrons to a metal.
An "olefin," alternatively referred to as "alkene," is a linear, branched, or cyclic compound of carbon and hydrogen having at least one double bond. For purposes of this specification and the claims appended thereto, when a polymer or copolymer is referred to as comprising an olefin, the olefin present in such polymer or copolymer is the polymerized form of the olefin. For example, when a copolymer is said to have an "ethylene" content of 35 wt% to 55 wt%, it is understood that the mer unit in the copolymer is derived from ethylene in the polymerization reaction and said derived units are present at 35 wt% to 55
wt%, based upon the weight of the copolymer. A "polymer" has two or more of the same or different mer units. A "homopolymer" is a polymer having mer units that are the same. A "copolymer" is a polymer having two or more mer units that are different from each other. A "terpolymer" is a polymer having three mer units that are different from each other. "Different" as used to refer to mer units indicates that the mer units differ from each other by at least one atom or are different isomerically. Accordingly, the definition of copolymer, as used herein, includes terpolymers and the like. An "ethylene polymer" or "ethylene copolymer" is a polymer or copolymer comprising at least 50 mole% ethylene derived units, a "propylene polymer" or "propylene copolymer" is a polymer or copolymer comprising at least 50 mole% propylene derived units, and so on.
For the purposes of this invention, ethylene shall be considered an a-olefin.
For purposes of this invention and claims thereto, the term "substituted" means that a hydrogen group has been replaced with a heteroatom, or a heteroatom-containing group. For example, a "substituted hydrocarbyl" is a radical made of carbon and hydrogen where at least one hydrogen is replaced by a heteroatom or heteroatom-containing group. However, for purposes of this invention and claims thereto in relation to the catalyst compounds described herein, the term "substituted" means that a hydrogen group has been replaced with a hydrocarbyl group, a heteroatom, or a heteroatom-containing group. For example, methyl cyclopentadiene (Cp) is a Cp group substituted with a methyl group.
Unless otherwise noted, all molecular weights units (e.g., Mw, Mn, Mz) are g/mol.
Unless otherwise noted all melting points (Tm) are DSC second melt.
The term "aryl", "aryl radical", and/or "aryl group" refers to aromatic cyclic structures, which may be substituted with hydrocarbyl radicals and/or functional groups as defined herein.
As used herein the term "aromatic" also refers to pseudoaromatic heterocycles which are heterocyclic substituents that have similar properties and structures (nearly planar) to aromatic heterocyclic ligands, but are not by definition aromatic; likewise, the term aromatic also refers to substituted aromatics.
The term "continuous" means a system that operates without interruption or cessation. For example, a continuous process to produce a polymer would be one where the reactants are continually introduced into one or more reactors and polymer product is continually withdrawn.
A solution polymerization means a polymerization process in which the polymer is dissolved in a liquid polymerization medium, such as an inert solvent or monomer(s) or their
blends. A solution polymerization is typically homogeneous. A homogeneous polymerization is one where the polymer product is dissolved in the polymerization medium. Such systems are preferably not turbid as described in J. Vladimir Oliveira, C. Dariva and J. C. Pinto, Ind. Eng, Chem. Res. 29, 2000, 4627.
A bulk polymerization means a polymerization process in which the monomers and/or comonomers being polymerized are used as a solvent or diluent using little or no inert solvent as a solvent or diluent. A small portion of inert solvent might be used as a carrier for catalyst and scavenger. A bulk polymerization system contains less than 25 wt% of inert solvent or diluent, preferably less than 10 wt%, preferably less than 1 wt%, preferably 0 wt%.
For purposes herein, RT is room temperature, which is defined as 25 °C unless otherwise specified. All percentages are weight percent (wt%) unless otherwise specified. Catalyst Ligands and Compounds
In a first aspect, this invention relates to ligands represented by the formula (A):
where each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 (such as O, N, S, or P), and R3 is not present when Q is a Group 16 atom;
R2
— (<f¥- each L is independently R2 and is not part of an aromatic ring;
y is greater than or equal to 2, preferably 2, 3, 4, 5, or 6;
R1 is a divalent C1-C40 (alternately Ci to C20) hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1
to 18 carbon atoms linking or bridging between the two Q groups, preferably as described below for formulas I and II;
each Ra, Rb, Rc, Rd, Re, Rf, Rg, and Rh is, independently, a hydrogen, a Ci-Ceo (alternately Ci to C40) hydrocarbyl radical, a C1-C60 (alternately Ci to C40) substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof, preferably as described below for formulas I and II;
each R2 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic, preferably as described below for formulas I and II; and
each R3 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, preferably as described below for formulas I and II.
In another aspect of the invention there is provided a transition metal complex (optionally for use in alkene olymerization) represented by the formula (I) or (II):
wherein M is a Group 4 transition metal (preferably Hf, Zr, or Ti, preferably Hf or Zr);
R2
D2
each L is independently and is not part of an aromatic ring;
y is greater than or equal to 2, e.g., 2, 3, 4, 5, or 6;
X1 and X2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20
substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4 to C62 cyclic, polycyclic or heterocyclic ring structure (preferably benzyl, methyl, ethyl, chloro, bromo, and the like);
each Q is independently a neutral donor group comprising at least one atom from Group 15 or Group 16, preferably comprising O, N, S, or P (preferably O or N), and R3 is not present when Q is a Group 16 atom;
R1 is a divalent C1-C40 (alternately Ci to C20) hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups, preferably R1 is a -(CR¾n- group, where n is 2, 3, 4, 5, or 6, (preferably 2 or 3) each R5 is H or a Ci to C4o hydrocarbyl radical, a Ci to C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or multiple R5 groups may join together to form a C4 to C62 cyclic or polycyclic ring structure (preferably a benzene ring, substituted benzene ring, cyclohexyl, substituted cyclohexyl, cyclooctyl, or substituted cyclooctyl), preferably each R5 is, independently, a Ci- C20 hydrocarbyl radical, preferably a C1-C20 alkyl radical, preferably each R5 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl;
each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a hydrogen, a Ci-Ceo (alternately Ci to C4o) hydrocarbyl radical, a C1-C60 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent Ra to Rh groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, preferably each Ra, Rb, Rc, Rd, Re, Rf, Rg, and Rh is, independently, a C1-C20 hydrocarbyl radical, preferably a C1-C20 alkyl or aromatic radical, preferably each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, adamantyl, substituted adamantyl, cyclohexyl, substituted cyclohexyl phenyl, substituted phenyl, fluorenyl, substituted fluorenyl, carbazolyl, substituted carbazolyl, naphthyl, substituted naphthyl, phenanthryl, substituted phenanthryl, anthracenyl, substituted anthracenyl, indanyl, substituted indanyl, indenyl, substituted indenyl;
each R2 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring
structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic, preferably each R2 is, independently, a C1-C20 hydrocarbyl radical, preferably a C1-C20 alkyl radical, preferably each R2 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl; and
each R3 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, preferably a C1-C20 hydrocarbyl radical, preferably a C1-C20 alkyl radical, preferably each R3 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl, phenyl, and substituted phenyl.
In another aspect, this invention relates to catalyst compounds represented by the formula (I) or (II) where Ra and/or Re (preferably Ra and Re) are independently a carbazole radical or substituted carbazole radical is re resented by the formula:
wherein each R1, R2, R3, R4, R5, R6, R7, and R8 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a functional group comprising elements from Group 13 to 17 of the periodic table of the elements, or two or more of R1 to R8 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, preferably each R1, R2, R3, R4, R5, R6, R7, and R8 is hydrogen.
For purposes herein, any hydrocarbyl radical (and any alkyl radical) may be independently selected from methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, hexacosyl, heptacosyl, octacosyl, nonacosyl, triacontyl, propenyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl, nonadecenyl, eicosenyl, heneicosenyl, docosenyl, tricosenyl, tetracosenyl, pentacosenyl, hexacosenyl, heptacosenyl, octacosenyl, nonacosenyl, triacontenyl, propynyl, butynyl, pentynyl, hexynyl,
heptynyl, octynyl, nonynyl, decynyl, undecynyl, dodecynyl, tridecynyl, tetradecynyl, pentadecynyl, hexadecynyl, heptadecynyl, octadecynyl, nonadecynyl, eicosynyl, heneicosynyl, docosynyl, tricosynyl, tetracosynyl, pentacosynyl, hexacosynyl, heptacosynyl, octacosynyl, nonacosynyl, and triacontynyl.
In any embodiment of the transition metal complexes described herein M may be Hf,
Ti or Zr.
In any embodiment of the transition metal complexes described herein, each of X1 and X2 is independently selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms (such as methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl), hydrides, amides, alkoxides having from 1 to 20 carbon atoms, sulfides, phosphides, halides, sulfoxides, sulfonates, phosphonates, nitrates, carboxylates, carbonates, and combinations thereof, preferably each of X1 and X2 is independently selected from the group consisting of halides (F, CI, Br, I), alkyl radicals having from 1 to 7 carbon atoms (methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, and isomers thereof), benzyl radicals, or a combination thereof.
In any embodiment of the transition metal complexes described herein, R1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between Q and Q. In an embodiment, R1 is selected from the group consisting of ethylene (-CH2CH2-), 1,2-cyclohexylene and 1 ,2-phenylene. In an embodiment, R1 is -CH2CH2CH2- derived from propylene. In an embodiment, R1 is selected form the group consisting of Ci to C20 alkyl groups, such as divalent methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl.
In a useful embodiment, each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a hydrogen, a C1-C20 hydrocarbyl radical, a substituted Ci to C20 hydrocarbyl radical, or two or more of R1 to R10 may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof.
In any embodiment of the transition metal complexes described herein, each Ra, Rb,
Rc, Rd, Re, Rf, Rs, and Rh is independently hydrogen, a halogen, a Ci to C30 hydrocarbyl radical, a Ci to C20 hydrocarbyl radical, or a Ci to C10 hydrocarbyl radical (such as methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl,
dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl).
In any embodiment of the transition metal complexes described herein, each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a substituted Ci to C30 hydrocarbyl radical, a substituted Ci to C20 hydrocarbyl radical, or a substituted Ci to C10 hydrocarbyl radical (such as 4-fluorophenyl, 4-chlorophenyl, 4-bromophenyl, 4-methoxyphenyl, 4- trifluoromethylphenyl, 4-dimethylaminophenyl, 4-trimethylsilylphenyl, 4-triethylsilylphenyl, trifluoromethyl, fluoromethyl, trichloromethyl, chloromethyl, mesityl, methylthio, phenylthio, (trimethylsilyl)methyl, and (triphenylsilyl)methyl).
In an embodiment of the invention, one or more of Ra, Rb, Rc, Rd, Re, Rf, Rg, and Rh is a methyl radical, a fluoride, chloride, bromide, iodide, methoxy, ethoxy, isopropoxy, trifluoromethyl, dimethylamino, diphenylamino, adamantyl, phenyl, pentafluorphenyl, naphthyl, anthracenyl, dimethylphosphanyl, diisopropylphosphanyl, diphenylphosphanyl, methylthio, and phenylthio or a combination thereof.
In any embodiment of the transition metal complexes described herein, Q is preferably a neutral donor group comprising at least one atom from Group 15 or Group 16, preferably Q is NR'2, OR', SR', PR'2, where R is as defined for Ra (preferably R' is methyl, ethyl, propyl, isopropyl, phenyl, cyclohexyl or linked together to form a five-membered ring such as pyrrolidinyl or a six-membered ring such as piperidinyl), preferably the -(-Q-R^Q-)- fragment can form a substituted or unsubstituted heterocycle which may or may not be aromatic and may have multiple fused rings. In any embodiment of the transition metal complexes described herein, Q is preferably NR'2, where R' is methyl, ethyl, propyl, isopropyl, phenyl, cyclohexyl or linked together to form a five-membered ring such as pyrrolidinyl or a six-membered ring such as piperidinyl).
In a useful embodiment of the transition metal complexes described herein, Ra and or
Re are the same, preferably Ra and or Re are C-R'", where each R'" is H or a Ci to C12 hydrocarbyl or substituted hydrocarbyl (such as methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, trifluoromethylphenyl, tolyl, phenyl, methoxyphenyl, tertbutylphenyl, fluorophenyl, diphenyl, dimethylaminophenyl, chlorophenyl, bromophenyl, iodophenyl, (trimethylsilyl)phenyl, (triethylsilyl)phenyl, (trimethylsilyl)methyl, (triethylsilyl)methyl). In a useful embodiment of the transition metal complexes described herein, Ra and or Re are different.
In a useful embodiment of the transition metal complexes described herein, Ra and or Re are the same, preferably Ra and or Re are carbazolyl, substituted carbazolyl, indolyl,
substituted indolyl, indolinyl, substituted indolinyl, imidazolyl, substituted imidazolyl, indenyl, substituted indenyl, indanyl, substituted indanyl, fluorenyl, or substituted fluorenyl. In a useful embodiment of the transition metal complexes described herein, Ra and or Re are different. In a useful embodiment of the transition metal complexes described herein, Ra and or Re are the same.
In an embodiment, M is Zr or Hf; X1 and X2 are benzyl radicals; and R1 is ethylene
In an embodiment, M is Zr or Hf; X1 and X2 are benzyl radicals; Rc and Rg are methyl radicals; Rb, Rd, Rh, and Rf are hydrogen; and R1 is ethylene (-CH2CH2-), each Q is an O- containing group, Ra and Re are carbazolyl or fluorenyl.
In a particularly preferred embodiment of the invention, the catalyst complex is represente
where M is preferably Zr or Hf .
Methods to Prepare the Catalyst Compounds
In embodiments, the transition metal compounds may be prepared by three general synthetic routes. In the first method, the phenol is allylated via a nucleophilic substitution followed by a Claisen rearrangement. The resulting allyl-substituted phenol is then protected and oxidized with ozone to the corresponding aldehyde. Reductive amination of the carbonyl with the diamine followed by deprotection results in the final ligand. Alternatively, the aldehyde can be transformed to the corresponding ethyl bromide compound, which is then reacted via nucleophilic substitution with the precursor of the bridging group, e.g., diamine or diol. In the second method, the phenol is ortho-formylated then transformed to the vinyl phenol via a Wittig reaction. The vinyl group is oxidized to the alcohol by hydroboration- oxidation then selectively transformed to the aldehyde, which is subsequently reacted as in Method 1 to the final ligand. In the third method, 2-(2-hydroxyphenyl)acetic acid is reduced
to corresponding ethyl bromide following a reduction to the alcohol. The ethyl bromide compound is then protected and reacted as in Method 1. The ligand is then typically reacted with the metal tetra-alkyl compound, e.g., tetrabenzyl, to yield the metal dibenzyl complex of the ligand.
in Method 1 where the protection may be any useful material, for example tert-butyldimethylsilyl chloride/imidazole.
Ligand metalation:
Activators
The terms "cocatalyst" and "activator" are used herein interchangeably and are defined to be any compound which can activate any one of the catalyst compounds described above by converting the neutral catalyst compound to a catalytically active catalyst compound cation.
After the complexes described above have been synthesized, catalyst systems may be formed by combining them with activators in any manner known from the literature including by supporting them for use in slurry or gas phase polymerization. The catalyst systems may also be added to or generated in solution polymerization or bulk polymerization (in the monomer). The catalyst system typically comprises a complex as described above and an activator such as alumoxane or a non-coordinating anion.
Non-limiting activators, for example, include alumoxanes, aluminum alkyls, ionizing activators, which may be neutral or ionic, and conventional-type cocatalyst. Preferred activators typically include alumoxane compounds, modified alumoxane compounds, and ionizing anion precursor compounds that abstract a reactive, σ-bound, metal ligand making the metal complex cationic and providing a charge -balancing non-coordinating or weakly coordinating anion.
Alumoxane Activators
In one embodiment, alumoxane activators are utilized as an activator in the catalyst system. Alumoxanes are generally oligomeric compounds containing -A^R^-O- sub-units, where R1 is an alkyl group. Examples of alumoxanes include methylalumoxane (MAO), modified methylalumoxane (MMAO), ethylalumoxane and isobutylalumoxane. Alkylalumoxanes and modified alkylalumoxanes are suitable as catalyst activators, particularly when the abstractable ligand is an alkyl, halide, alkoxide, or amide. Mixtures of different alumoxanes and modified alumoxanes may also be used. It may be preferable to use a visually clear methylalumoxane. A cloudy or gelled alumoxane can be filtered to produce a
clear solution or clear alumoxane can be decanted from the cloudy solution. A useful alumoxane is a modified methyl alumoxane (MMAO) cocatalyst type 3A (commercially available from Akzo Chemicals, Inc. under the trade name Modified Methylalumoxane type 3 A, covered under patent number US 5,041,584).
When the activator is an alumoxane (modified or unmodified), some embodiments select the maximum amount of activator typically at up to a 5000-fold molar excess Al/M over the catalyst compound (per metal catalytic site). The minimum activator-to-catalyst-compound is a 1:1 molar ratio. Alternate preferred ranges include from 1:1 to 500:1, alternately from 1:1 to 200:1, alternately from 1:1 to 100:1, or alternately from 1:1 to 50:1.
In an alternate embodiment, little or no alumoxane is used in the polymerization processes described herein. Preferably, alumoxane is present at zero mole %, alternately the alumoxane is present at a molar ratio of aluminum to catalyst compound transition metal less than 500:1, preferably less than 300: 1, preferably less than 100:1, preferably less than 1:1. Non-Coordinating Anion Activators
A non-coordinating anion (NCA) is defined to mean an anion either that does not coordinate to the catalyst metal cation or that does coordinate to the metal cation, but only weakly. The term NCA is also defined to include multicomponent NCA-containing activators, such as Ν,Ν-dimethylanilinium tetrakis(pentafluorophenyl)borate, that contain an acidic cationic group and the non-coordinating anion. The term NCA is also defined to include neutral Lewis acids, such as tris(pentafluorophenyl)boron, that can react with a catalyst to form an activated species by abstraction of an anionic group. An NCA coordinates weakly enough that a neutral Lewis base, such as an olefinically or acetylenically unsaturated monomer can displace it from the catalyst center. Any metal or metalloid that can form a compatible, weakly coordinating complex may be used or contained in the non-coordinating anion. Suitable metals include, but are not limited to, aluminum, gold, and platinum. Suitable metalloids include, but are not limited to, boron, aluminum, phosphorus, and silicon. A stoichiometric activator can be either neutral or ionic. The terms ionic activator, and stoichiometric ionic activator can be used interchangeably. Likewise, the terms neutral stoichiometric activator, and Lewis acid activator can be used interchangeably. The term non-coordinating anion includes neutral stoichiometric activators, ionic stoichiometric activators, ionic activators, and Lewis acid activators.
"Compatible" non-coordinating anions are those which are not degraded to neutrality when the initially formed complex decomposes. Further, the anion will not transfer an
anionic substituent or fragment to the cation so as to cause it to form a neutral transition metal compound and a neutral by-product from the anion. Non-coordinating anions useful in accordance with this invention are those that are compatible, stabilize the transition metal cation in the sense of balancing its ionic charge at +1, and yet retain sufficient lability to permit displacement during polymerization.
It is within the scope of this invention to use an ionizing or stoichiometric activator, neutral or ionic, such as tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate, a tris perfluorophenyl boron metalloid precursor or a tris perfluoronaphthyl boron metalloid precursor, polyhalogenated heteroborane anions (WO 98/43983), boric acid (US 5,942,459), or combination thereof. It is also within the scope of this invention to use neutral or ionic activators alone or in combination with alumoxane or modified alumoxane activators.
The catalyst systems of this invention can include at least one non-coordinating anion (NCA) activator.
In a preferred embodiment boron containing NCA activators represented by the formula below can be used:
Zd+ (Ad-)
where: Z is (L-H) or a reducible Lewis acid; L is a neutral Lewis base; H is hydrogen;
(L-H) is a Bronsted acid; Ad_ is a boron containing non-coordinating anion having the charge d-; d is 1, 2, or 3.
The cation component, Zd+ may include Bronsted acids such as protons or protonated
Lewis bases or reducible Lewis acids capable of protonating or abstracting a moiety, such as an alkyl or aryl, from the bulky ligand metallocene containing transition metal catalyst precursor, resulting in a cationic transition metal species.
The activating cation Zd+ may also be a moiety such as silver, tropylium, carboniums, ferroceniums and mixtures, preferably carboniums and ferroceniums. Most preferably Zd+ is triphenyl carbonium. Preferred reducible Lewis acids can be any triaryl carbonium (where the aryl can be substituted or unsubstituted, such as those represented by the formula: (Ar3C+), where Ar is aryl or aryl substituted with a heteroatom, a Q to C40 hydrocarbyl, or a substituted Ci to C4o hydrocarbyl), preferably the reducible Lewis acids in formula (14) above as "Z" include those represented by the formula: (Ph3C), where Ph is a substituted or unsubstituted phenyl, preferably substituted with C1 to C40 hydrocarbyls or substituted a C1 to C40 hydrocarbyls, preferably C1 to C2o alkyls or aromatics or substituted C1 to C20 alkyls or aromatics, preferably Z is a triphenylcarbonium.
When Zd+ is the activating cation (L-H)d+, it is preferably a Bronsted acid, capable of donating a proton to the transition metal catalytic precursor resulting in a transition metal cation, including ammoniums, oxoniums, phosphoniums, silyliums, and mixtures thereof, preferably ammoniums of methylamine, aniline, dimethylamine, diethylamine, N- methylaniline, diphenylamine, trimethylamine, triethylamine, N,N-dimethylaniline, methyldiphenylamine, pyridine, p-bromo Ν,Ν-dimethylaniline, p-nitro-N,N-dimethylaniline, phosphoniums from trie thy lphosphine, triphenylphosphine, and diphenylphosphine, oxoniums from ethers such as dimethyl ether diethyl ether, tetrahydrofuran and dioxane, sulfoniums from thioethers, such as diethyl thioethers, tetrahydrothiophene, and mixtures thereof.
The anion component Ad~ includes those having the formula [Mk+Qn]d~ wherein k is 1, 2, or 3; n is 1, 2, 3, 4, 5, or 6 (preferably 1, 2, 3, or 4); n - k = d; M is an element selected from Group 13 of the Periodic Table of the Elements, preferably boron or aluminum, and Q is independently a hydride, bridged or unbridged dialkylamido, halide, alkoxide, aryloxide, hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, and halosubstituted- hydrocarbyl radicals, said Q having up to 20 carbon atoms with the proviso that in not more than 1 occurrence is Q a halide. Preferably, each Q is a fluorinated hydrocarbyl group having 1 to 20 carbon atoms, more preferably each Q is a fluorinated aryl group, and most preferably each Q is a pentafluoryl aryl group. Examples of suitable Ad~ also include diboron compounds as disclosed in US 5,447,895, which is fully incorporated herein by reference.
Illustrative, but not limiting examples of boron compounds which may be used as an activating cocatalyst are the compounds described as (and particularly those specifically listed as) activators in US 8,658,556, which is incorporated by reference herein.
Most preferably, the ionic stoichiometric activator Zd+ (Ad~) is one or more of N,N- dimethylanilinium tetra(perfluorophenyl)borate, N,N-dimethylanilinium tetrakis(perfluoronaphthyl)borate, Ν,Ν-dimethylanilinium tetrakis(perfluorobiphenyl)borate, Ν,Ν-dimethylanilinium tetrakis(3 ,5-bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, triphenylcarbenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, or triphenylcarbenium tetra(perfluorophenyl)borate.
Bulky activators are also useful herein as NCAs. "Bulky activator" as used herein refers to anionic activators represented by the formula:
Ar is substituted or unsubstituted aryl group (preferably a substituted or unsubstituted phenyl), preferably substituted with C1 to C40 hydrocarbyls, preferably C1 to C2o alkyls or aromatic s;
each R2 is, independently, a halide, a C6 to C20 substituted aromatic hydrocarbyl group or a siloxy group of the formula -0-Si-Ra, where Ra is a Q to C20 hydrocarbyl or hydrocarbylsilyl group (preferably R2 is a fluoride or a perfluorinated phenyl group);
each R3 is a halide, C6 to C20 substituted aromatic hydrocarbyl group or a siloxy group of the formula -0-Si-Ra, where Ra is a C1 to C20 hydrocarbyl or hydrocarbylsilyl group (preferably R3 is a fluoride or a C6 perfluorinated aromatic hydrocarbyl group); wherein R2 and R3 can form one or more saturated or unsaturated, substituted or unsubstituted rings (preferably R2 and R3 form a perfluorinated phenyl ring);
L is a neutral Lewis base; (L-H)+ is a Bronsted acid; d is 1, 2, or 3;
wherein the anion has a molecular weight of greater than 1020 g/mol; and
wherein at least three of the substituents on the B atom each have a molecular volume of greater than 250 cubic A, alternately greater than 300 cubic A, or alternately greater than 500 cubic A.
Preferably (Ar3C)d+ is (Ph3C)d+, where Ph is a substituted or unsubstituted phenyl, preferably substituted with C1 to C40 hydrocarbyls or substituted C1 to C40 hydrocarbyls, preferably Q to C20 alkyls or aromatics or substituted Q to C20 alkyls or aromatics.
"Molecular volume" is used herein as an approximation of spatial steric bulk of an activator molecule in solution. Comparison of substituents with differing molecular volumes allows the substituent with the smaller molecular volume to be considered "less bulky" in comparison to the substituent with the larger molecular volume. Conversely, a substituent with a larger molecular volume may be considered "more bulky" than a substituent with a smaller molecular volume.
Molecular volume may be calculated as reported in "A Simple 'Back of the Envelope' Method for Estimating the Densities and Molecular Volumes of Liquids and Solids," Journal of Chemical Education, Vol. 71, No. 11, November 1994, pp. 962-964. Molecular volume (MV), in units of cubic A, is calculated using the formula: MV = 8.3VS, where Vs is the scaled volume. Vs is the sum of the relative volumes of the constituent atoms, and is calculated from the molecular formula of the substituent using the following table of relative volumes. For fused rings, the Vs is decreased by 7.5% per fused ring.
For a list of particularly useful Bulky activators please see US 8,658,556, which is incorporated by reference herein.
In another embodiment, one or more of the NCA activators is chosen from the activators described in US 6,211,105.
Preferred activators include Ν,Ν-dimethylanilinium tetrakis(perfluoronaphthyl)borate, Ν,Ν-dimethylanilinium tetrakis(perfluorobiphenyl)borate, N,N-dimethylanilinium tetrakis(perfluorophenyl)borate, Ν,Ν-dimethylanilinium tetrakis(3,5- bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, triphenylcarbenium tetrakis(3,5- bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluorophenyl)borate, [Ph3C+] [B(C6F5)4-], [Me3NH+] [B(C6F5)4-] , 1 -(4-(tris(pentafluorophenyl)borate)-2,3 ,5 ,6- tetrafluorophenyl)pyrrolidinium, and tetrakis(pentafluorophenyl)borate, 4- (tris(pentafluorophenyl)borate)-2,3,5,6-tetrafluoropyridine.
In a preferred embodiment, the activator comprises a triaryl carbonium (such as triphenylcarbenium tetraphenylborate, triphenylcarbenium tetrakis(pentafluorophenyl)borate, triphenylcarbenium tetrakis-(2,3 ,4,6-tetrafluorophenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, or triphenylcarbenium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate).
In another embodiment, the activator comprises one or more of trialkylammonium tetrakis(pentafluorophenyl)borate, Ν,Ν-dialkylanilinium tetrakis(pentafluorophenyl)borate, N,N-dimethyl- (2,4, 6- trimethylanilinium) tetrakis (pentafluorophenyl)borate,
trialkylammonium tetrakis-(2,3,4,6-tetrafluorophenyl) borate, Ν,Ν-dialkylanilinium tetrakis- (2,3,4,6-tetrafluorophenyl)borate, trialkylammonium tetrakis(perfluoronaphthyl)borate, N,N- dialkylanilinium tetrakis(perfluoronaphthyl)borate, trialkylammonium tetrakis(perfluorobiphenyl)borate, Ν,Ν-dialkylanilinium tetrakis(perfluorobiphenyl)borate, trialkylammonium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, N,N-dialkylanilinium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, N,N-dialkyl-(2,4,6-trimethylanilinium) tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, di-(i-propyl) ammonium tetrakis(pentafluorophenyl)borate, (where alkyl is methyl, ethyl, propyl, n-butyl, sec-butyl, or t-butyl).
The typical activator-to-catalyst ratio, e.g., all NCA activators-to-catalyst ratio is about a 1 : 1 molar ratio. Alternate preferred ranges include from 0.1: 1 to 100: 1, alternately from 0.5: 1 to 200: 1, alternately from 1 : 1 to 500: 1, alternately from 1: 1 to 1000: 1. A particularly useful range is from 0.5: 1 to 10: 1, preferably 1 : 1 to 5: 1.
It is also within the scope of this invention that the catalyst compounds can be combined with combinations of alumoxanes and NCA's (see, for example, US 5,153,157; US 5,453,410; EP 0 573 120; WO 94/07928; and WO 95/14044, which discuss, inter alia, the use of an alumoxane in combination with an ionizing activator).
Scavengers and Co- Activators
The catalyst system may further include scavengers and/or co- activators. In some embodiments, when using the complexes described herein, particularly when they are immobilized on a support, the catalyst system will additionally comprise one or more scavenging compounds. Here, the term scavenging compound means a compound that removes polar impurities from the reaction environment. A scavenger is typically added to facilitate polymerization by scavenging impurities. Some scavengers may also act as activators and may be referred to as co-activators. A co-activator, that is not a scavenger, may also be used in conjunction with an activator in order to form an active catalyst. In some embodiments, a co-activator can be pre-mixed with the transition metal compound to form an alkylated transition metal compound.
Typically, the scavenging compound will be an organometallic compound such as the Group-13 organometallic compounds of US 5,153,157; US 5,241,025; WO-A-91/09882; WO-A-94/03506; WO-A-93/14132; and that of WO 95/07941. Exemplary compounds include triethyl aluminum, triethyl borane, tri-wo-butyl aluminum, methyl alumoxane, iso- butyl alumoxane, and tri-n-octyl aluminum. Those scavenging compounds having bulky or C6-C2o linear hydrocarbyl substituents connected to the metal or metalloid center usually
minimize adverse interaction with the active catalyst. Examples include triethylaluminum, but more preferably, bulky compounds such as tri-z'so-butyl aluminum, tri-z'so-prenyl aluminum, and long-chain linear alkyl-substituted aluminum compounds, such as tri-n-hexyl aluminum, tri-n-octyl aluminum, or tri-n-dodecyl aluminum. When alumoxane is used as the activator, any excess over that needed for activation will scavenge impurities and additional scavenging compounds may be unnecessary. Alumoxanes also may be added in scavenging quantities with other activators, e.g., methylalumoxane, [Me2HNPh]+[B(pfp)4]" or B(pfp)3 (perfluorophenyl = pfp = C6F5). In an embodiment, the scavengers are present at less than 14 wt%, or from 0.1 to 10 wt%, or from 0.5 to 7 wt%, by weight of the catalyst system.
Suitable aluminum alkyl or organoaluminum compounds which may be utilized as co- activators include, for example, trimethylaluminum, triethylaluminum, triisobutylaluminum, tri-n-hexylaluminum, tri-n-octylaluminum and the like. In an embodiment, the co-activators are present at less than 14 wt%, or from 0.1 to 10 wt%, or from 0.5 to 7 wt%, by weight of the catalyst system. Alternately, the complex-to-co-activator molar ratio is from 1:100 to 100:1; 1:75 to 75:1; 1:50 to 50:1; 1:25 to 25:1; 1:15 to 15:1; 1:10 to 10:1; 1:5 to 5:1; 1:2 to 2:1; 1:100 to 1: 1; 1:75 to 1:1; 1:50 to 1:1; 1:25 to 1:1; 1: 15 to 1: 1; 1:10 to 1:1; 1:5 to 1:1; 1:2 to 1:1; 1:10 to 2:1.
Chain Transfer Agents (CTAs)
A "chain transfer agent" is any agent capable of hydrocarbyl and/or polymeryl group exchange between a coordinative polymerization catalyst and the metal center of the chain transfer agent during a polymerization process. The chain transfer agent can be any desirable chemical compound such as those disclosed in WO 2007/130306. Preferably, the chain transfer agent is selected from Group 2, 12, or 13 alkyl or aryl compounds; preferably zinc, magnesium or aluminum alkyls or aryls; preferably where the alkyl is a Ci to C30 alkyl, alternately a C2 to C20 alkyl, alternately a C3 to C12 alkyl, typically selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, cyclohexyl, phenyl, octyl, nonyl, decyl, undecyl, and dodecyl; and where di-ethylzinc is particularly preferred.
In a particularly useful embodiment, this invention relates to a catalyst system comprising activator, catalyst complex as described herein, and chain transfer agent wherein the chain transfer agent is selected from Group 2, 12, or 13 alkyl or aryl compounds.
In a particularly useful embodiment, the chain transfer agent is selected from dialkyl zinc compounds, where the alkyl is selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, cyclohexyl, and phenyl.
In a particularly useful embodiment, the chain transfer agent is selected from trialkyl aluminum compounds, where the alkyl is selected independently from methyl, ethyl, propyl, butyl, isobutyl, tertbutyl, pentyl, hexyl, and cyclohexyl.
In a particularly useful embodiment, the chain transfer agent is selected from tri aryl aluminum compounds where the aryl is selected from phenyl and substituted phenyl.
The inventive process may be characterized by the transfer of at least 0.5 polymer chains (preferably 0.5 to 3) polymer chains, where n is the maximum number of polymer chains that can be transferred to the chain transfer agent metal, preferably n is 1 to 3 for trivalent metals (such as Al) and 1 to 2 for divalent metals (such as Zn), preferably n is 1.5 to 3 for trivalent metals (such as Al) and 1.5 - 2 for divalent metals (such as Zn). The number of chains transferred per metal is the slope of the plot of moles of polymer produced versus the moles of the chain transfer agent metal (as determined from at least four points, CTA metahcatalyst transition metal of 20: 1, 80:1, 140:1 and 200:1, using least squares fit (Microsoft™ Excel 2010, version 14.0.7113.5000 (32bit)) to draw the line. For example, in Table 10, for entries 1-8, the slope is 0.0682 and for entries 17-24, the slope is 0.7593.
Useful chain transfer agents are typically present at from 10 or 20 or 50 or 100 equivalents to 600 or 700 or 800 or 1000 or 2000 or 4000 equivalents relative to the catalyst component. Alternately the chain transfer agent is preset at a catalyst complex-to-CTA molar ratio of from about 1: 12,000 to 10:1; alternatively 1:6,000; alternatively, 1:3,000 to 10:1; alternatively 1:2,000 to 10: 1; alternatively 1:1,000 to 10:1; alternatively, 1:500 to 1:1; alternatively 1:300 to 1:1; alternatively 1:200 to 1:1; alternatively 1: 100 to 1:1; alternatively 1:50 to 1:1; alternatively 1:10 to 1:1.
Useful chain transfer agents include diethylzinc, tri-n-octyl aluminum, trimethylaluminum, triethylaluminum, tri-isobutylaluminum, tri-n-hexylaluminum, diethyl aluminum chloride, dibutyl zinc, di-n-propylzinc, di-n-hexylzinc, di-n-pentylzinc, di-n- decylzinc, di-n-dodecylzinc, di-n-tetradecylzinc, di-n-hexadecylzinc, di-n-octadecylzinc, diphenylzinc, diisobutylaluminum hydride, diethylaluminum hydride, di-n-octylaluminum hydride, dibutylmagnesium, diethylmagnesium, dihexylmagnesium, and triethylboron.
In a preferred embodiment, two or more complexes are combined with diethyl zinc and/or tri-n-octylaluminum in the same reactor with monomer(s). Alternately, one or more complexes is/are combined with another catalyst (such as a metallocene) and diethyl zinc and/or tri-n-octylaluminum in the same reactor with monomer(s).
In a preferred embodiment, one or more complexes is/are combined with a mixture of diethyl zinc and an aluminum reagent in the same reactor with monomer(s). Alternately, one
or more complexes is/are combined with two chain transfer agents in the same reactor with monomer(s).
Supports
In some embodiments, the complexes described herein may be supported (with or without an activator) by any method effective to support other coordination catalyst systems, effectively meaning that the catalyst so prepared can be used for oligomerizing or polymerizing olefin in a heterogeneous process. The catalyst precursor, activator, co- activator, if needed, suitable solvent, and support may be added in any order or simultaneously. Typically, the complex and activator may be combined in solvent to form a solution. Then the support is added, and the mixture is stirred for 1 minute to 10 hours. The total solution volume may be greater than the pore volume of the support, but some embodiments limit the total solution volume below that needed to form a gel or slurry (about 90% to 400%, preferably about 100 to 200% of the pore volume). After stirring, the residual solvent is removed under vacuum, typically at ambient temperature and over 10-16 hours. But greater or lesser times and temperatures are possible.
The complex may also be supported absent the activator; in that case, the activator (and co-activator if needed) is added to a polymerization process's liquid phase. Additionally, two or more different complexes may be placed on the same support. Likewise, two or more activators or an activator and co-activator may be placed on the same support.
Suitable solid particle supports are typically comprised of polymeric or refractory oxide materials, each being preferably porous. Preferably any support material that has an average particle size greater than 10 μιη is suitable for use in this invention. Various embodiments select a porous support material, such as for example, talc, inorganic oxides, inorganic chlorides, for example, magnesium chloride and resinous support materials such as polystyrene polyolefin or polymeric compounds or any other organic support material and the like. Some embodiments select inorganic oxide materials as the support material including Group -2, -3, -4, -5, -13, or -14 metal or metalloid oxides. Some embodiments select the catalyst support materials to include silica, alumina, silica-alumina, and their mixtures. Other inorganic oxides may serve either alone or in combination with the silica, alumina, or silica- alumina. These are magnesia, titania, zirconia, and the like. Lewis acidic materials such as montmorillonite and similar clays may also serve as a support. In this case, the support can, optionally, double as the activator component, however, an additional activator may also be used.
The support material may be pretreated by any number of methods. For example, inorganic oxides may be calcined, chemically treated with dehydroxylating agents, such as aluminum alkyls and the like, or both.
As stated above, polymeric carriers will also be suitable in accordance with the invention, see for example the descriptions in WO 95/15815 and US 5,427,991. The methods disclosed may be used with the catalyst complexes, activators or catalyst systems of this invention to adsorb or absorb them on the polymeric supports, particularly if made up of porous particles, or may be chemically bound through functional groups bound to or in the polymer chains.
Useful supports typically have a surface area of from 10-700 m2/g, a pore volume of
0.1-4.0 cc/g and an average particle size of 10-500 μιη. Some embodiments select a surface area of 50-500 m2/g, a pore volume of 0.5-3.5 cc/g, or an average particle size of 10-200 μιη. Other embodiments select a surface area of 100-400 m2/g, a pore volume of 0.8-3.0 cc/g, and an average particle size of 50-100 μιη. Useful supports typically have a pore size of 10-1000 Angstroms, alternatively 50-500 Angstroms, or 75-350 Angstroms.
The catalyst complexes described herein are generally deposited on the support at a loading level of 10-100 micromoles of complex per gram of solid support; alternately 20-80 micromoles of complex per gram of solid support; or 40-60 micromoles of complex per gram of support. But greater or lesser values may be used provided that the total amount of solid complex does not exceed the support's pore volume.
Polymerization
Inventive catalyst complexes are useful in polymerizing unsaturated monomers conventionally known to undergo metallocene-catalyzed polymerization such as solution, slurry, gas-phase, and high-pressure polymerization. Typically one or more of the complexes described herein, one or more activators, and one or more monomers are contacted to produce polymer. In certain embodiments, the complexes may be supported and as such will be particularly useful in the known, fixed-bed, moving-bed, fluid-bed, slurry, solution, or bulk operating modes conducted in single, series, or parallel reactors.
One or more reactors in series or in parallel may be used in the present invention. The complexes, activator and when required, co-activator, may be delivered as a solution or slurry, either separately to the reactor, activated in-line just prior to the reactor, or preactivated and pumped as an activated solution or slurry to the reactor. Polymerizations are carried out in either single reactor operation, in which monomer, comonomers, catalyst/activator/co-activator, optional scavenger, and optional modifiers are added
continuously to a single reactor or in series reactor operation, in which the above components are added to each of two or more reactors connected in series. The catalyst components can be added to the first reactor in the series. The catalyst component may also be added to both reactors, with one component being added to first reaction and another component to other reactors. In one preferred embodiment, the complex is activated in the reactor in the presence of olefin.
In a particularly preferred embodiment, the polymerization process is a continuous process.
Polymerization processes used herein typically comprise contacting one or more alkene monomers with the complexes (and, optionally, activator) described herein. For purpose of this invention alkenes are defined to include multi-alkenes (such as dialkenes) and alkenes having just one double bond. Polymerization may be homogeneous (solution or bulk polymerization) or heterogeneous (slurry - in - liquid diluent, or gas phase - in - gaseous diluent). In the case of heterogeneous slurry or gas phase polymerization, the complex and activator may be supported. Silica is useful as a support herein. Chain transfer agents may also be used herein.
The present polymerization processes may be conducted under conditions preferably including a temperature of about 30°C to about 200°C, preferably from 60°C to 195°C, preferably from 75 °C to 190°C. The process may be conducted at a pressure of from 0.05 MPa to 1500 MPa. In a preferred embodiment, the pressure is between 1.7 MPa and 30 MPa, or in another embodiment, especially under supercritical conditions, the pressure is between 15 MPa and 1500 MPa.
Monomers
Monomers useful herein include olefins having from 2 to 20 carbon atoms, alternately 2 to 12 carbon atoms (preferably ethylene, propylene, butylene, pentene, hexene, heptene, octene, nonene, decene, and dodecene) and, optionally, also polyenes (such as dienes). Particularly preferred monomers include ethylene, and mixtures of C2 to C10 alpha olefins, such as ethylene-propylene, ethylene-hexene, ethylene-octene, propylene -hexene, and the like.
The complexes described herein are also particularly effective for the polymerization of ethylene, either alone or in combination with at least one other olefinically unsaturated monomer, such as a C3 to C20 a-olefin, and particularly a C3 to C12 a-olefin. Likewise, the present complexes are also particularly effective for the polymerization of propylene, either alone or in combination with at least one other olefinically unsaturated monomer, such as
ethylene or a C4 to C20 a-olefin, and particularly a C4 to C20 a-olefin. Examples of preferred a-olefins include ethylene, propylene, butene-1, pentene-1, hexene-1, heptene-1, octene-1, nonene-1, decene-1, dodecene-1, 4-methylpentene-l, 3-methylpentene-l, 3,5,5- trimethylhexene-1, and 5-ethylnonene-l.
In some embodiments, the monomer mixture may also comprise one or more dienes at up to 10 wt%, such as from 0.00001 to 1.0 wt%, for example, from 0.002 to 0.5 wt%, such as from 0.003 to 0.2 wt%, based upon the monomer mixture. Non-limiting examples of useful dienes include, cyclopentadiene, norbornadiene, dicyclopentadiene, 5-ethylidene-2- norbornene ("ENB"), 5-vinyl-2-norbornene, 1,4-hexadiene, 1,5-hexadiene, 1,5-heptadiene, 1,6-heptadiene, 6-methyl-l,6-heptadiene, 1,7-octadiene, 7-methyl-l,7-octadiene, 1,9- decadiene, 1 and 9-methyl-l,9-decadiene.
In a useful embodiment of the invention, the monomers comprise ethylene and one or more C3 to C12 alkenes, such as propylene.
Particularly preferred monomers combinations include: ethylene -propylene, ethylene- hexene, ethylene-octene, and the like.
Where olefins are used that give rise to short chain branching, such as propylene, the catalyst systems may, under appropriate conditions, generate stereoregular polymers or polymers having stereoregular sequences in the polymer chains.
Polymer Products
The homopolymer and copolymer products produced by the present process may have an Mw of about 1,000 to about 2,000,000 g/mol, alternately of about 30,000 to about 600,000 g/mol, or alternately of about 100,000 to about 500,000 g/mol, as determined by GPC. Preferred polymers produced here may be homopolymers or copolymers. In a preferred embodiment, the comonomer(s) are present at up to 50 mol%, preferably from 0.01 to 40 mol%, preferably 1 to 30 mol%, preferably from 5 to 20 mol%. In some embodiments herein, a multimodal polyolefin composition is produced, comprising a first polyolefin component and at least another polyolefin component, different from the first polyolefin component by molecular weight, preferably such that the GPC trace has more than one peak or inflection point.
Unless otherwise indicated, measurements of weight average molecular weight (Mw), number average molecular weight (Mn), and z average molecular weight (Mz) are determined by the GPC-SEC procedure as described below in the Experimental section.
In a preferred embodiment, the homopolymer and copolymer products produced by the present process may have an Mw of about 1,000 to about 2,000,000 g/mol, alternately of
about 30,000 to about 600,000 g/mol, or alternately of about 100,000 to about 500,000 g/mol, as determined by GPC-SEC.
In an alternate embodiment, the homopolymer and copolymer products produced by the present process may have a multi-modal, such as bimodal, Mw/Mn.
The term "multimodal," when used to describe a polymer or polymer composition, means "multimodal molecular weight distribution," which is understood to mean that the Gel Permeation Chromatography (GPC-SEC) trace, plotted as Absorbance versus Retention Time (seconds), has more than one peak or inflection point. An "inflection point" is that point where the second derivative of the curve changes in sign (e.g., from negative to positive or vice versa). For example, a polyolefin composition that includes a first lower molecular weight polymer component (such as a polymer having an Mw of 100,000 g/mol) and a second higher molecular weight polymer component (such as a polymer having an Mw of 300,000 g/mol) is considered to be a "bimodal" polyolefin composition.
In an alternate embodiment, the polymer produced herein has an Mw/Mn of from 1 to 40, alternately from greater than 1 to 5.
End Uses
Articles made using polymers produced herein may include, for example, molded articles (such as containers and bottles, e.g., household containers, industrial chemical containers, personal care bottles, medical containers, fuel tanks, and storage ware, toys, sheets, pipes, tubing) films, non-wovens, and the like. It should be appreciated that the list of applications above is merely exemplary, and is not intended to be limiting.
EXPERIMENTAL
[fbCOJx is paraformaldehyde.
Example 1
2-(2-hydroxyethyl)phenol (1): 2-(2-hydroxyphenyl)acetic acid (5.0 g, 32 mmol) was dissolved in 160 mL of THF and cooled to -35°C. Borane (49 mL of 1.0 M in THF) was slowly added and the reaction warmed to ambient temperature. After 4 h, the mixture was cooled to 0°C and quenched with concentrated HC1. Once warmed to ambient, saturated ammonium chloride was added and THF removed by distillation under reduced pressure. The aqueous portion was extracted with ethyl acetate, which was then dried over MgS04, filtered, and concentrated to give the reduced alcohol in quantitative yield. ¾ NMR (400 MHz, CDC , δ): 2.19 (t, J = 8.0 Hz, 2 H), 4.01 (t, J = 8.0 Hz, 2 H), 6.92 (m, 4 H).
2-(2-bromoethyl)phenol (2): Alcohol 1 (2.0 g, 14.4 mmol) was dissolved in 30 mL of dichloromethane and cooled to -35 °C. Phosphorous tribromide (2.0 mL, 21.7 mmol) was slowly added and the reaction warmed to ambient temperature over several hours. The reaction was poured onto ice and extracted with methylene chloride. The combined organic layers were washed with saturated sodium bicarbonate, dried over MgS04, filtered, and concentrated to give the product as a pale yellow oil in 62% yield. ¾ NMR (400 MHz,
(2-(2-bromoethyl)phenoxy)(tert-butyl)dimethylsilane (3): Bromide 2 (1.8 g, 8.9 mmol), imidazole (2.2 g, 23.9 mmol), and tert-butyldimethylsilyl chloride (1.4 g, 9.79 mmol) were dissolved in 30 mL of acetonitrile and stirred at ambient temperature for over 24 h. Water was added and the mixture extracted with 2 portions of ethyl acetate. Combined organic layers were washed with brine, dried over MgS04, filtered through a silica gel plug, and then concentrated to give a protected phenol. ¾ NMR (400 MHz, CDCI3, δ): 0.26 (s, 6 H), 1.03 (s, 9 H), 3.17 (t, / = 8.0 Hz, 2 H), 3.54 (t, / = 8.0 Hz, 2 H), 6.87 (m, 2 H), 7.11 (m, 2 H).
l,2-bis(2-((tert-butyldimethylsilyl)oxy)phenethoxy)benzene (4): Catechol (104 mg, 0.95 mmol) was dissolved in 15 mL of THF and cooled to 0°C. Sodium hydride (101 mg, 3.99 mmol) was added and the mixture allowed to warm to ambient temperature and stirred for 30 min. The catecholate salt was added to a solution of bromide 3 (0.6 g, 1.9 mmol) in 5 mL of THF and stirred for 5 h. The reaction was quenched with ice water and extracted with ether. Combined organic layers were washed with brine, dried over MgS04, filtered, and concentrated under reduced pressure to give the product as a pale yellow oil.
Example A
Synthesis of 1-Zr and 1-Hf
9-(2-(Allyloxy)-5-methylphenyl)-9H-carbazole (A-1). Allyl bromide (19 mL, 220 mmol, 1.2 equiv) was added to a solution of compound 2-(9H-carbazol-9-yl)-4-methylphenol (50.0 g, 183 mmol, 1 equiv) and anhydrous potassium carbonate (50.6 g, 366 mmol, 2 equiv) in acetone (1 L). After refluxing overnight, the reaction was cooled to room temperature, and filtered, washing the filter cake with acetone (500 mL). The filtrate was concentrated under reduced pressure to give compound A-1 (53.6 g, 94% yield) as an off white solid which was used subsequently.
2-AUyl-6-(9H-carbazol-9-yl)-4-methylphenol (A-2). Compound A-1 (53.6 g, 171 mmol, 1 equiv) was dissolved in 1,2-dichlorobenzene (186 mL) in a 500 mL sealed glass pressure vessel and heated to 180°C for 6 days. The solution was purified over silica gel (1 kg) eluting with a gradient of 0 to 50% toluene in heptanes to give compound A-2 (47.4 g, 88% yield) as a tan oil that slowly solidified.
9-(3-Allyl-2-methoxy-5-methylphenyl)-9H-carbazole (A -3). Iodomethane (3.0 mL, 48.8 mmol, 1.5 equiv) was added to a solution of compound A-2 (10.2 g, 32.5 mmol, 1 equiv)
and anhydrous potassium carbonate (6.7 g, 48.8 mmol, 1.5 equiv) in acetone (200 mL). After refluxing overnight, the reaction was cooled to room temperature and filtered. The filter cake was washed with acetone (50 mL). The filtrate was concentrated under reduced pressure and the residue was partially purified on an AnaLogix column (120 g), eluting with a gradient of 0 to 40% toluene in heptanes. The mixed fractions were purified on an AnaLogix column (25 g) eluting with a gradient of 0 to 40% toluene in heptanes. The clean material from each column was combined to compound A- 3 (7.7 g, 72% yield) as a colorless oil that slowly solidified.
2-(3-(9H-Carbazol-9-yl)-2-methoxy-5-methylphenyl)acetaldehyde (A -4). Compound A-3, 5.9 g, 18 mmol, 1 equiv) was dissolved in dichloromethane (120 mL) and methanol (140 mL) and cooled to -78°C. Ozone was bubbled through the solution for 50 minutes until a yellow color persisted. The solution was sparged with air for an extra 10 minutes. The solution was quenched with dimethyl sulfide (2.5 mL) and stirred while warming to room temperature for 5 hours. The solution was concentrated under reduced pressure and the residue was partially purified on an AnaLogix column (80 g), eluting with a gradient of 0 to 50% ethyl acetate in heptanes. The mixed fractions were purified on an AnaLogix column (25 g), eluting with a gradient of 0 to 50% ethyl acetate in heptanes. The clean material from each column was combined to give compound A-4 (4.2 g, 71% yield) as a white solid.
^V,^V'-Bis(3-(9H-carbazol-9-yl)-2-methoxy-5-methylphenethyl)-/Y,^V'- dimethylethane-l,2-diamine (A-5). N,N'-Dimethylethane-l,2-diamine (0.53 mL, 4.9 mmol, 1 equiv) was added to a solution compound A-4 (3.9 g, 12 mmol, 2.4 equiv) and sodium cyanoborohydride (1.23 g, 19.6 mmol, 4 equiv) in methanol (156 mL). Acetic acid (45 drops) was added and the solution was stirred at room temperature overnight. The solution was concentrated under reduced pressure. The residue was purified on an AnaLogix column (40 g), eluting with a gradient of 0 to 10% methanol in dichloromethane, to give compound A-5 (3.7 g, > theoretical yield) as a colorless oil that slowly solidified.
6,6'-((Ethane-l,2-diylbis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H- carbazol-9-yl)-4-methylphenol) (A -6). Boron tribromide (3.0 mL, 31 mmol, 6.4 equiv) as added dropwise to solution of compound A-5 (3.5 g, 4.9 mmol, 1 equiv) in anhydrous dichloromethane (100 mL) at -78°C. The solution was stirred at -78°C for 4 hours and warmed to room temperature overnight. The solution was carefully diluted with ice water (100 mL). The layers were separated and the aqueous layer was extracted with dichloromethane (100 mL). The combined organic layers were dried over sodium sulfate and
concentrated under reduced pressure. The crude reside was dry loaded onto silica (8 g) and partially purified on an AnaLogix column (40 g), eluting with a gradient of 0 to 100% ethyl acetate in heptanes. The mixed fractions from the first column were partially purified on an AnaLogix column (40 g), eluting with a gradient of 0 to 100% methyl tert-butyl ether in heptanes. The mixed fractions from the second column were partially purified in batches, two runs on an AnaLogix Reverse Phase column (100 g) and seven runs on an AnaLogix Reverse Phase column (50 g), eluting each batch with a gradient of 0 to 100% tetrahydrofuran in deionized water. The mixed fractions from the reverse phase columns were partially purified on an AnaLogix column (12 g) eluting isocratically with a solution of 98:2: 1 dichlorome thane: methyl tert-butyl ether:ammonia. The mixed fractions were partially purified on an AnaLogix column (25 g), eluting isocratically with a solution of 98:2:1 dichloromethane: methyl tert-butyl ether:ammonia. The mixed fractions were purified one last time on an AnaLogix column (12 g), eluting isocratically with a solution of 98:2: 1 dichloromethane: methyl tert-butylether: ammonia. All of the clean material was combined to give compound A-6 (1.42 g, 42% yield) as a white solid.
6,6'-((Ethane-l,2-diylbis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H- carbazol-9-yl)-4-methylphenoxide) zirconium dibenzyl (1-Zr). In the drybox, Zr(CH2Ph)4 (0.0996 g, 0.219 mmol, 1 equiv) was dissolved in toluene (3 mL), and the resulting orange solution was added to a slurry of compound A-6 (0.1500 g, 0.2184 mmol, 1 equiv) in toluene (2 mL). The mixture was stirred for 2.5 hours at room temperature then concentrated under a stream of nitrogen. The resulting yellow-orange residue was washed with hexane (5 mL) and dried under vacuum to give 1-Zr (0.1836 g, -88% yield) as a yellow powder.
6,6'-((Ethane-l,2-diylbis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H- carbazol-9-yl)-4-methylphenoxide) hafnium dibenzyl (1-Hf). In the drybox, Hf(CH2Ph)4 (0.0786 g, 0.145 mmol, 1 equiv) was dissolved in toluene (3 mL), and the resulting pale yellow solution was added to a slurry of compound A-6 (0.0998 g, 0.145 mmol, 1 equiv) in toluene (2 mL). The mixture was stirred for 2.5 hours at room temperature then concentrated under a stream of nitrogen. The resulting pale yellow residue was washed with hexane (5 mL) and dried under vacuum to give 1-Hf (0.1262 g, -83% yield) as a cream powder.
Synthesis of 2-Zr and 2-Hf
9-(3-Allyl-2-(methoxymethoxy)-5-methylphenyl)-9H-carbazole (B-1). Compound A-2 (45.4 g, 145 mmol, 1 equiv), chloromethyl methyl ether (MOM-Cl, 22 mL, 290 mmol, 2 equiv) and N,N-diisopropylethylamine (50.6 mL, 290 mmol, 2 equiv) were dissolved in dichloromethane (450 mL) and refluxed for 6.5 hours. The solution was diluted with water
(400 niL) and the layers were separated. The aqueous layer was extracted with dichloromethane (100 mL). The combined organic layers were concentrated under reduced pressure. The residue was partially purified over silica gel (1 kg), eluting with a gradient of 10 to 50% toluene in heptanes. The mixed fractions from the first column were purified on an AnaLogix column (330 g), eluting with a gradient of 10 to 50% toluene in heptanes. The clean material from each column was combined to give compound B-l (41.7 g, 73% yield) as a yellow oil.
2-(3-(9H-Carbazol-9-yl)-2-(methoxymethoxy)-5-methylphenyl)acetaldehyde (B-
2). Compound B-l (30.7 g, 85.9 mmol, 1 equiv) was dissolved in dichloro-methane (600 mL) and methanol (700 mL) and cooled to -78°C. Ozone was bubbled through the solution for 2.5 hours until a yellow color persisted. The solution was sparged with air for an additional 10 minutes. The solution was quenched with dimethyl sulfide (12 mL) and stirred while warming to room temperature for 5 hours. The solution was concentrated under reduced pressure. The residue was purified over silica gel (300 g), eluting with a gradient of 0 to 60% ethyl acetate in heptanes, to give compound B-2 (20.5 g, 66% yield) as a yellow oil.
^V,^V'-Bis(3-(9H-carbazol-9-yl)-2-(methoxymethoxy)-5-methylphenethyl)-^V,^V'- dimethylbenzene-l,2-diamine (B-3): Sodium cyanoborohydride (1.8 g, 29.2 mmol, 4 equiv) and acetic acid (3.6 mL, 57 mmol, 7.8 equiv) were added to a solution of compound B-2 (6.3 g, 17.6 mmol, 2.4 equiv) and N,N'-dimethylbenzene-l,2-diamine (1.0 g, 7.3 mmol, 1 equiv) in methanol (250 mL). The solution was stirred at room temperature overnight. The solution was filtered and the filtrate was partially concentrated under reduced pressure and filtered again. The solids from each filtration were combined, dissolved in dichloromethane and dry loaded onto Celite (10 g). The dry loaded solid was then partially purified on an AnaLogix column (120 g), eluting with a gradient of 0 to 25% ethyl acetate in heptanes. The mixed fractions from the first column were combined and dry loaded onto Celite (5 g) and partially purified on an AnaLogix column (80 g), eluting with a gradient of 0 to 25% ethyl acetate in heptanes. The mixed fractions from the second column were combined and dry loaded onto Celite (5 g) and partially purified on an AnaLogix column (80 g), eluting with a gradient of 0 to 25% ethyl acetate in heptanes. The clean material from each column was combined to give compound B-3 (2.5 g, 42% yield) as a white solid.
6,6'-((l,2-Phenylenebis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H-carbazol- 9-yl)-4-methylphenol) (B-4). Compound B-4 (2.4 g, 3.3 mmol, 1 equiv) was dissolved in a solution of 2.5% v/v concentrated hydrochloric acid in methanol (102.5 mL) and stirred at 45 °C for 5 hours. Solid sodium bicarbonate (6.5 g) was added to neutralize the solution to
H 8. The solution was concentrated under reduced pressure. The residue was partitioned between ethyl acetate (200 mL) and water (200 mL). The organic layer was dried over sodium sulfate and concentrated under reduced pressure. The residue was dry loaded onto Celite (5 g) and purified on an AnaLogix column (25 g), eluting with a gradient of 0 to 25%
6,6'-((l,2-phenylenebis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H-carbazol- 9-yl)-4-methylphenoxide) zirconium dibenzyl (2-Zr). In the drybox, Zr(CH2Ph)4 (0.0606 g, 0.133 mmol, 1 equiv) was dissolved in toluene (3 mL), and the resulting orange solution was added to a solution of compound B-4 (0.0998 g, 0.136 mmol, 1 equiv) in toluene (2 mL). The mixture was stirred for 2.5 hours at room temperature then concentrated under a stream of nitrogen. The resulting yellow-orange residue was stirred in hexane (5 mL), collected in a funnel with a glass frit and dried under vacuum to give 2-Zr (0.0983 g, -73% yield) as a yellow powder.
6,6'-((l,2-phenylenebis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H-carbazol- 9-yl).4.methylphenoxide) hafnium dibenzyl (2-Hf). In the drybox, Hf(CH2Ph)4 (0.0726 g, 0.134 mmol, 1 equiv) was dissolved in toluene (3 mL), and the resulting pale yellow solution was added to a solution of compound B-4 (0.0992 g, 0.135 mmol, 1 equiv) in toluene (2 mL). The mixture was stirred for 2.5 hours at room temperature then concentrated under a stream of nitrogen. The resulting pale yellow residue was washed with hexane (5 mL) and dried under vacuum to give 2-Hf (0.1180 g, -81% yield) as a cream powder.
Synthesis of 3-Zr and 3-Hf
^V,^V'-bis(3-(9H-carbazol-9-yl)-2-(methoxymethoxy)-5-methylphenethyl)-/ ,^V'- dimethylpropane-l,3-diamine (C-1). Sodium cyanoborohydride (0.556 g, 8.85 mmol, 4 equiv) and acetic acid (10 drops) were added to a solution of compound B-2 (1.904 g, 5.30 mmol, 2.4 equiv) and N,N'-dimethylpropane-l,3-diamine (0.226 g, 2.21 mmol, 1 equiv) in methanol (25 mL). The solution was stirred at room temperature overnight then filtered and concentrated under reduced pressure. The resulting residue was purified on a Biotage SNAP Ultra column (50 g), eluting with a gradient of 0 to 20% ethyl acetate in hexane, to give compound C-1 as an off-white solid. The compound was carried over to the next step as isolated.
6,6'-(2,2'-(propane-l,3-diylbis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H- carbazol-9-yl)-4-methylphenol) (C-2). Compound C-1 (from previous reaction) was dissolved in 30 mL of methanol and a solution of 2.5% v/v concentrated hydrochloric acid in methanol (10.3 mL) and stirred at 45 °C for 5 hours. Solid sodium bicarbonate was added to neutralize the solution to pH 8. The solution was concentrated under reduced pressure. The residue was partitioned between ethyl acetate (50 mL) and water (50 mL). Organic layer
washed with water (2 x 50 mL) and brine (1 x 50 mL). The organic layer was separated, dried over sodium sulfate, and concentrated under reduced pressure. The resulting residue was purified on a Biotage SNAP Ultra column (50 g), eluting with a gradient of 0 to 20% ethyl
.
6,6'-(2,2'-(propane-l,3-diylbis(methylazanediyl))bis(ethane-2,l-diyl))bis(2-(9H- carbazol-9-yl)-4-methylphenoxide) zirconium dibenzyl (3-Zr). In the drybox, Zr(CH2Ph)4 (0.099 g, 0.217 mmol, 1 equiv) was dissolved in toluene (3 mL), and the resulting orange solution was added to a solution of compound C-2 (0.152 g, 0.217 mmol, 1 equiv) in toluene (2 mL). The mixture was stirred for 1 hour at room temperature then concentrated under a stream of nitrogen. The resulting yellow-orange residue was stirred in hexane (10 mL), collected in a funnel with a glass frit and dried under vacuum to give 3-Zr (0.169 g, 80 % yield) as a yellow powder.
carbazol-9-yl)-4-methylphenoxide) hafnium dibenzyl (3-Hf). In the drybox, Ηί(0¾Ρ1ι)4 (0.136 g, 0.250 mmol, 1 equiv) was dissolved in toluene (3 mL), and the resulting pale
yellow solution was added to a solution of compound C-2 (0.175 g, 0.250 mmol, 1 equiv) in toluene (2 mL). The mixture was stirred for 1 hour at room temperature then concentrated under a stream of nitrogen. The resulting off-white residue was stirred in hexane (10 mL), collected in a funnel with a glass frit, washed with hexane, and dried under vacuum to give 3- Hf (0.213 g, 80 % yield) as a white powder.
Likewise the following can also be made:
Preparation of Supported Catalysts
Preparation of Silica Support (sMAO). MAO (71.4 g, 30 wt% toluene solution, 351.1 mmol of Al) was slowly added to a slurry of silica (D948, 40.7 g, calcined at 600°C) in toluene (200 mL). The slurry was heated to 80°C, stirred for 1 hour then filtered and washed with toluene (3 x 70 mL) and pentane (70 mL). The silica support was dried under vacuum overnight to give a free flowing white solid (60.7 g).
Preparation of Supported Catalyst. In the drybox, a slurry of sMAO (0.500 g) in toluene (30 mL) was prepared in a Cel-Stir reaction vessel. The slurry was charged with a toluene (3 mL) solution of the metal complex (0.020 mmol), and the reaction was stirred at room temperature for 1 hour. The slurry was filtered through a funnel with a glass frit (10 micron), washed with toluene (5 mL) and pentane (10 mL), and dried under vacuum for 1 hour to afford a free flowing yellow or white solid (~ 0.5 g; catalyst loading = 0.040 mmol metal complex / g sMAO). In the following polymerization examples, supported catalysts are indicated by "_s" following the catalyst name. For example, catalyst 1-Zr supported on silica is labeled as 1-Zr_s.
Polymerization Examples
General polymerization procedures for parallel pressure reactor. Solvents, polymerization-grade toluene, and isohexane were supplied by ExxonMobil Chemical Company and purified by passing through a series of columns: two 500 cc Oxyclear cylinders in series from Labclear (Oakland, Calif.), followed by two 500 cc columns in series packed with dried 3 A mole sieves (8-12 mesh; Aldrich Chemical Company), and two 500 cc columns in series packed with dried 5 A mole sieves (8-12 mesh; Aldrich Chemical Company).
1-octene (C8) and 1-hexene (C6) (98%, Aldrich Chemical Company) were dried by stirring over NaK overnight followed by filtration through basic alumina (Aldrich Chemical Company, Brockman Basic 1).
Polymerization-grade ethylene (C2) was used and further purified by passing the gas through a series of columns: 500 cc Oxyclear cylinder from Labclear (Oakland, CA) followed yb a 500 cc column packed with dried 3 A mole sieves (8-12 mesh; Aldrich Chemical Company) and a 500 cc column packed with dried 5A mole sieves (8-12 mesh; Aldrich Chemical Company).
Polymerization grade propylene (C3) was used and further purified by passing it through a series of columns: 2250 cc Oxiclear cylinder from Labclear followed by a 2250 cc column packed with 3 A mole sieves (8-12 mesh; Aldrich Chemical Company), then two 500 cc columns in series packed with 5 A mole sieves (8-12 mesh; Aldrich Chemical Company), then a 500 cc column packed with Selexsorb CD (BASF), and finally a 500 cc column packed with Selexsorb COS (BASF).
Solutions of the metal complexes and activators were prepared in a drybox using toluene (ExxonMobil Chemical Company; anhydrous, stored under nitrogen; 98%). Concentrations were typically 0.2 mmol/L for the metal complexes and N,N-dimethyl anilinium tetrakis-pentafluorophenyl borate (Activator- 1) and 0.5 % w/w for methyl alumoxane (MAO).
Slurries of supported catalysts in toluene were prepared in the drybox using 45 mg of the supported catalyst and 15 mL of toluene. The resulting mixture was vortexed for uniform distribution of particles prior to injection.
For polymerization experiments with supported catalysts or Activator- 1 as activator, tri-n-octylaluminum (TNOAL, neat, AkzoNobel) was used as a scavenger. Concentration of the TNOAL solution in toluene ranged from 0.5 to 2.0 mmol/L.
Polymerizations were carried out in a parallel, pressure reactor, as generally described in US 6,306,658; US 6,455,316; US 6,489,168; WO 00/09255; and Murphy et al., J. Am. Chem. Soc, 2003, 125, pp. 4306-4317, each of which is fully incorporated herein by reference. The experiments were conducted in an inert atmosphere (N2) drybox using autoclaves equipped with an external heater for temperature control, glass inserts (internal volume of reactor = 23.5 mL for C2 and C2/C8; 22.5 mL for C3 runs), septum inlets, regulated supply of nitrogen, ethylene and propylene, and equipped with disposable PEEK mechanical stirrers (800 RPM). The autoclaves were prepared by purging with dry nitrogen at 110°C or 115°C for 5 hours and then at 25 °C for 5 hours. Although the specific quantities, temperatures, solvents, reactants, reactant ratios, pressures, and other variables are frequently changed from one polymerization run to the next, the following describes a typical polymerization performed in a parallel, pressure reactor.
Catalyst systems dissolved in solution were used in the polymerization examples below, unless specified otherwise.
Ethylene Homopolymerization (HDPE) and Ethylene-Octene Copolymerization
(EO). A pre-weighed glass vial insert and disposable stirring paddle were fitted to each reaction vessel of the reactor, which contains 48 individual reaction vessels. The reactor was then closed and purged with ethylene. Each vessel was charged with enough solvent (typically isohexane) to bring the total reaction volume, including the subsequent additions, to the desired volume, typically 5 mL. 1-octene, if required, was injected into the reaction vessel and the reactor was heated to the set temperature and pressurized to the predetermined pressure of ethylene, while stirring at 800 rpm. The aluminum and/or zinc compound in toluene was then injected as scavenger and/or chain transfer agent followed by addition of the activator solution (typically 1.0-1.2 molar equivalents of NN-dimethyl anilinium tetrakis- pentafluorophenyl borate - Activator- 1).
The catalyst solution (typically 0.020-0.080 umol of metal complex) was injected into the reaction vessel and the polymerization was allowed to proceed until a pre-determined amount of ethylene (quench value typically 20 psi) had been used up by the reaction. Alternatively, the reaction may be allowed to proceed for a set amount of time (maximum reaction time typically 30 minutes). Ethylene was added continuously (through the use of computer controlled solenoid valves) to the autoclaves during polymerization to maintain reactor gauge pressure (+1-2 psig) and the reactor temperature was monitored and typically maintained within +/-1°C. The reaction was quenched by pressurizing the vessel with compressed air. After the reactor was vented and cooled, the glass vial insert containing the
polymer product and solvent was removed from the pressure cell and the inert atmosphere glove box, and the volatile components were removed using a Genevac HT-12 centrifuge and Genevac VC3000D vacuum evaporator operating at elevated temperature and reduced pressure. The vial was then weighed to determine the yield of the polymer product. The resultant polymer was analyzed by Rapid GPC (see below) to determine the molecular weight, by FT-IR (see below) to determine percent octene incorporation, and by DSC (see below) to determine melting point (Tm).
For polymerizations using MAO as activator (typically 100 to 1000 molar equivalents), the MAO solution was injected into the reaction vessel after the addition of 1- octene and prior to heating the vessel to the set temperature and pressurizing with ethylene. No additional aluminum reagent was used as scavenger during these runs.
Equivalence is determined based on the mole equivalents relative to the moles of the transition metal in the catalyst complex.
Ethylene-Propylene Copolymerization (EP). The reactor was prepared as described above and purged with propylene. Isohexane was then injected into each vessel at room temperature followed by a predetermined amount of propylene gas. The reactor was heated to the set temperature and pressurized with the required amount of ethylene while stirring at 800 rpm. The scavenger, activator (typically Activator- 1) and catalyst solutions were injected sequentially to each vessel and the polymerization was allowed to proceed as described previously.
Propylene Homopolymerization (PP). The reactor was prepared as described above and purged with propylene. Isohexane was then injected into each vessel at room temperature followed by a predetermined amount of propylene gas. The reactor was heated to the set temperature while stirring at 800 rpm, and the scavenger, activator (typically Activator-1) and catalyst solutions were injected sequentially to each vessel. The polymerization was allowed to proceed as described previously.
For propylene homopolymerization in the presence of hydrogen (PP/H2), the reactor was prepared as described above and purged with 25% v/v H2/N2 gas. With an atmosphere of H2/N2 gas in the reaction vessel, isohexane, the scavenger solution and a predetermined amount of propylene gas were injected sequentially at room temperature. The reactor was then heated to the set temperature followed by sequential injection of the activator and catalyst solutions. The polymerization was allowed to proceed as described previously.
For polymerizations using MAO as activator, the MAO solution was injected into the vessel after the addition of isohexane. No additional aluminum reagent was used as scavenger during these runs.
Polymerizations using Supported Catalysts. For ethylene-hexene copolymerization (EH), the reactor was prepared as described above and purged with ethylene. Isohexane, 1- hexene, and the scavenger solution were added sequentially to the reaction vessel via syringe at room temperature and atmospheric pressure. The reactor was then heated to the process temperature (85°C) and charged with ethylene to the pressure setpoint (130 psig = 896 kPa) while stirring at 800 rpm. The supported catalyst slurry was injected into the vessel and the polymerization was allowed to proceed as described in the previous section. To test for catalyst response to hydrogen, the EH experiments were also carried out using 300 ppm H2/ethylene mixed gas.
For EP, the reactor was prepared as described above and purged with propylene. Isohexane, the scavenger solution and a predetermined amount of propylene gas were added sequentially to the reaction vessels at room temperature. The reactor was then heated to the set temperature and pressurized with the required amount of ethylene while stirring at 800 rpm, followed by injection of the catalyst slurry. The polymerization was allowed to proceed as described previously.
Propylene homopolymerizations were set up similar to EP copolymerizations less the addition of ethylene.
For propylene homopolymerization in the presence of hydrogen (PP/¾), the reactor was prepared as described above and purged with 25% v/v H2/N2 gas. With an atmosphere of H2/N2 gas in the reaction vessel, isohexane, the scavenger solution and a predetermined amount of propylene gas were injected sequentially at room temperature. The reactor was then heated to the set temperature followed by injection of the catalyst slurry. The polymerization was allowed to proceed as described previously.
Polymer Characterization. Polymer sample solutions were prepared by dissolving polymer in 1,2,4-trichlorobenzene (TCB, 99+% purity from Sigma- Aldrich) containing 2,6- di-tert-butyl-4-methylphenol (BHT, 99% from Aldrich) at 165°C in a shaker oven for approximately 3 hours. The typical concentration of polymer in solution was between 0.1 to 0.9 mg/mL with a BHT concentration of 1.25 mg BHT/mL of TCB.
To determine various molecular weight related values by GPC, high temperature size exclusion chromatography was performed using an automated "Rapid GPC" system as generally described in US 6,491,816; US 6,491,823; US 6,475,391; US 6,461,515; US
6,436,292; US 6,406,632; US 6,175,409; US 6,454,947; US 6,260,407; and US 6,294,388; each of which is fully incorporated herein by reference for US purposes. This apparatus has a series of three 30 cm x 7.5 mm linear columns, each containing PLgel 10 μιη, Mix B. The GPC system was calibrated using polystyrene standards ranging from 580 - 3,390,000 g/mol. The system was operated at an eluent flow rate of 2.0 niL/minutes and an oven temperature of 165°C. 1,2,4-trichlorobenzene was used as the eluent. The polymer samples were dissolved in 1,2,4-trichlorobenzene at a concentration of 0.28 mg/mL and 400 uL of a polymer solution was injected into the system. The concentration of the polymer in the eluent was monitored using an evaporative light scattering detector. The molecular weights presented are relative to linear polystyrene standards and are uncorrected, unless indicated otherwise.
Differential Scanning Calorimetry (DSC) measurements were performed on a TA- Q100 instrument to determine the melting point (Tm) of the polymers. Samples were pre- annealed at 220°C for 15 minutes and then allowed to cool to room temperature overnight. The samples were then heated to 220°C at a rate of 100°C/min and then cooled at a rate of 50°C/min. Melting points were collected during the heating period.
The weight percent of ethylene incorporated in polymers was determined by rapid FT- IR spectroscopy on a Bruker Equinox 55+ IR in reflection mode. Samples were prepared in a thin film format by evaporative deposition techniques. FT-IR methods were calibrated using a set of samples with a range of known wt% ethylene content. For ethylene- 1-octene copolymers, the wt% octene in the copolymer was determined via measurement of the methyl deformation band at -1375 cm 1. The peak height of this band was normalized by the combination and overtone band at -4321 cm 1, which corrects for path length differences.
For ethylene-propylene copolymers, the wt% ethylene is determined via measurement of the methylene rocking band (-770 cm 1 to 700cm 1). The peak area of this band is normalized by sum of the band areas of the combination and overtone bands in the 4500 cm"1 to 4000 cm 1 range. For samples with composition outside the calibration range, the wt% ethylene was determined by ¾ NMR spectroscopy or estimated from the polymer Tm.
ill NMR data were collected at 120°C in a 5 mm probe using a spectrometer with a !H frequency of 500 MHz. Data was recorded using a maximum pulse width of 45°, 5 seconds between pulses and signal averaging 120 transients. Spectral signals were integrated. Samples were dissolved in deuterated 1,1,2,2,-tetrachloroethane at concentrations of 1-2 wt% prior to being inserted into the spectrometer magnet. Prior to data analysis, spectra were referenced by setting the residual hydrogen-containing solvent resonance to 5.98 ppm.
Vinylenes were measured as the number of vinylenes per 1000 carbon atoms using the resonances between 5.5-5.31 ppm. Trisubstituted end-groups ("trisubs") were measured as the number of trisubstituted groups per 1000 carbon atoms using the resonances between 5.3- 4.85 ppm, by difference from vinyls. Vinyl end-groups were measured as the number of vinyls per 1000 carbon atoms using the resonances between 5.9-5.65 and between 5.3-4.85 ppm. Vinylidene end-groups were measured as the number of vinylidenes per 1000 carbon atoms using the resonances between 4.85-4.65 ppm.
Table 1. Reaction conditions for ethylene homopolymerization (HDPE) and ethylene-octene copolymerization (EO) using Activator- 1 or MAO.
Table 2. Catalyst activity and polymer properties for ethylene homopolymerization (HDPE)
and ethylene-octene copolymerization (EO) using Activator- 1 or MAO.
activity
Catalyst, TNOAL time yield Mw Mn t% Tm
Entry Run Activator Polymer (g/mmol- Mw/Mn
umol umol (s) (g) (kg/mol) (kg/mol) octene (°C) hr)
1 1 1-Zr 0.02 MAO - EO 29.1 0.079 488,660 265 162 1.64 6.7 116.2
2 2 1-Zr 0.02 MAO - EO 26.5 0.075 509,434 268 155 1.73 6.2 117.4
3 1 1-Hf 0.02 MAO - EO 125.5 0.068 97,530 789 471 1.68 7.4 113.6
4 2 1-Hf 0.02 MAO - EO 113.8 0.064 101,230 1,101 642 1.72 6.3 113.7
5 1 2-Zr 0.02 MAO - EO 24.7 0.078 568,421 65 41 1.60 3.5 129.4
6 2 2-Zr 0.02 MAO - EO 24.0 0.068 510,000 63 39 1.60 3.4 128.5
7 1 2-Hf 0.02 MAO - EO 227.8 0.039 30,817 259 142 1.83 4.8 127.5
8 2 2-Hf 0.02 MAO - EO 247.1 0.034 24,767 307 195 1.57 2.7 128.1
9 1 3-Zr 0.02 MAO - EO 1800.7 0.008 800 - - - - -
10 2 3-Zr 0.08 MAO - EO 1800.9 0.030 750 211 100 2.11 9.1 112.5
11 1 3-Hf 0.02 MAO - EO 1801.1 0.005 500 - - - - -
12 2 3-Hf 0.08 MAO - EO 1800.4 0.004 100 - - - - -
13 1 1-Zr 0.02 Activator- 1 1 EO 30.1 0.058 346,844 241 148 1.62 4.1 119.7
14 2 1-Zr 0.02 Activator- 1 1 EO 30.9 0.068 396,117 235 130 1.81 5.0 119.7
15 1 1-Hf 0.02 Activator- 1 1 EO 388.3 0.033 15,297 855 479 1.79 4.9 117.4
16 2 1-Hf 0.02 Activator- 1 1 EO 236.8 0.041 31,166 890 572 1.55 3.9 120.5
17 1 2-Zr 0.02 Activator- 1 0.5 EO 34.1 0.060 316,716 85 53 1.61 3.2 129.4
18 2 2-Zr 0.02 Activator- 1 0.5 EO 31.7 0.060 340,694 82 47 1.74 3.4 129.7
19 1 2-Hf 0.02 Activator- 1 0.5 EO 591.8 0.030 9,125 442 270 1.64 2.6 127.9
20 2 2-Hf 0.02 Activator- 1 0.5 EO 688.7 0.030 7,841 452 292 1.55 3.0 129.3
21 1 3-Zr 0.02 Activator- 1 0.5 EO 1800.7 0.001 100 - - - - -
22 2 3-Zr 0.08 Activator- 1 0.5 EO 1800.9 0.006 150 - - - - -
23 1 3-Hf 0.02 Activator- 1 0.5 EO 1800.2 0.000 0 - - - - -
24 2 3-Hf 0.08 Activator- 1 0.5 EO 1086.1 0.044 1,823 328 204 1.61 5.7 114.9
25 1 1-Zr 0.02 Activator- 1 1 HDPE 31.4 0.056 321,019 243 151 1.61 NA 135.7
26 2 1-Zr 0.02 Activator- 1 1 HDPE 53.6 0.054 181,343 253 155 1.64 NA 135.8
27 1 1-Hf 0.02 Activator- 1 1 HDPE 459.9 0.037 14,481 965 575 1.68 NA 135.7
28 1 2-Zr 0.02 Activator- 1 0.5 HDPE 1801.0 0.000 0 - - - NA -
29 2 2-Zr 0.08 Activator- 1 0.5 HDPE 1801.0 0.003 75 - - - NA -
30 1 2-Hf 0.02 Activator- 1 0.5 HDPE 1800.2 0.000 0 - - - NA -
31 2 2-Hf 0.08 Activator- 1 0.5 HDPE 1801.1 0.010 250 - - - NA -
32 1 3-Zr 0.02 Activator- 1 0.5 HDPE 35.3 0.065 331,445 91 55 1.66 NA 135.5
33 2 3-Zr 0.02 Activator- 1 0.5 HDPE 31.3 0.058 333,546 92 58 1.59 NA 135.5
34 1 3-Hf 0.02 Activator- 1 0.5 HDPE 483.3 0.035 13,035 535 335 1.60 NA 137.8
35 2 3-Hf 0.02 Activator- 1 0.5 HDPE 571.7 0.032 10,075 510 285 1.79 NA 137.4
Table 3. Reaction conditions for propylene homopolymerization (PP) using Activator- 1 or MAO.
Table 4. Catalyst activity and polymer properties for propylene homopolymerization (PP) using Activator- 1 or MAO.
activity
TNOAL Mw Mn Tm
Entry Run Catalyst Activator time (s) yield (g) (g/mmol Mw/Mn
umol (kg/mol) (kg/mol) (°C)
-hr)
1 1 1-Zr Activator- 1 0.3 101.9 0.053 46,811 259 153 1.69 160.0
2 2 1-Zr Activator- 1 0.3 97.3 0.050 46,249 253 156 1.62 158.8
3 1 1-Hf Activator- 1 0.3 1072.7 0.010 839 97 61 1.59 161.4
4 2 1-Hf Activator- 1 0.3 1020.6 0.011 970 103 65 1.58 160.5
5 1 2-Zr Activator- 1 0.3 1200.4 0.000 0 - - - -
6 2 2-Zr Activator- 1 0.3 1200.6 0.000 0 - - - -
7 1 2-Hf Activator- 1 0.3 1200.3 0.004 300 - - - -
8 2 2-Hf Activator- 1 0.3 1201.0 0.004 300 - - - -
9 1 1-Zr MAO - 49.2 0.096 175,610 367 222 1.65 157.4
10 2 1-Zr MAO - 50.4 0.096 171,429 371 232 1.60 157.9
11 1 1-Hf MAO - 595.9 0.036 5,437 120 68 1.76 154.1
12 2 1-Hf MAO - 506.4 0.037 6,576 161 91 1.77 155.1
13 1 2-Zr MAO - 1200.7 0.002 150 - - - -
14 2 2-Zr MAO - 1200.2 0.003 225 - - - -
15 1 2-Hf MAO - 1200.3 0.009 675 - - - -
16 2 2-Hf MAO - 1201.2 0.010 749 19 12 1.60 101.7
Table 5. Reaction conditions for ethylene-propylene copolymerization
(EP) using Activator- 1.
Table 6. Catalyst activity and polymer properties for ethylene-propylene copolymerization (EP) using Activator- 1.
t%
C3 C2
TNOAL time yield activity Mw Mn propylene Tm
Entry Run Catalyst Pressure Pressure Mw/Mn
umol (s) (g) (g/mmol-hr) (kg/mol) (kg/mol) (est from (°C)
(psi) (psi)
Tm)
1 1 1-Zr 0.5 125 125 15.4 0.043 670,565 242 154 1.57 11 105.9
2 2 1-Zr 0.5 125 125 18.0 0.037 493,608 283 167 1.70 11 105.4
3 3 1-Zr 0.5 125 125 14.2 0.042 709,859 243 146 1.67 11 107.2
4 1 1-Zr 0.5 185 125 25.4 0.041 386,792 272 160 1.70 14 94.7
5 2 1-Zr 0.5 185 125 37.7 0.025 159,025 271 161 1.68 15 93.6
6 3 1-Zr 0.5 185 125 26.7 0.039 351,088 262 167 1.57 14 95.1
7 1 1-Hf 0.5 125 125 112.4 0.016 34,158 585 353 1.66 12 101.7
8 2 1-Hf 0.5 125 125 102.8 0.017 39,704 891 479 1.86 12 101.6
9 3 1-Hf 0.5 125 125 280.6 0.013 11,120 710 447 1.59 16 88.1
10 1 1-Hf 0.5 185 125 184.6 0.017 22,102 583 322 1.81 16 90.0
11 2 1-Hf 0.5 185 125 148.9 0.018 29,015 498 282 1.77 15 91.4
Table 7. Reaction conditions for ethylene-hexene copolymerization (EH) using supported catalysts.
Table 8. Catalyst activity and polymer properties for ethylene -hexene copolymerization (EH) using supported catalysts. hexene time yield activity Mw Mn t% Tm
Entry Run Catalyst Mw/Mn
uL (s) (g) (g/mmol-hr) (kg/mol) (kg/mol) C6 (°C)
1 1 1-Zr_s 30 2701 0.020 2222 451 121 3.7 1.6 130
2 2 1-Zr_s 30 2700 0.025 2777 538 110 4.9 0.7 130
3 1 1-Hf_s 30 2300 0.072 9392 2372 1220 1.9 1.8 127
4 2 1-Hf_s 30 2701 0.080 8887 2303 960 2.4 1.2 126
5 1 1-Zr_s 180 2352 0.059 7526 224 101 2.2 6.2 120
6 2 1-Zr_s 180 2700 0.070 7777 465 126 3.7 6.4 119
7 1 1-Hf_s 180 1086 0.097 26801 2176 1196 1.8 8.3 112
8 2 1-Hf_s 180 1212 0.092 22782 2111 1116 1.9 7.7 113
9 1 1-Zr_s 300 844 0.085 30228 237 120 2.0 8.3 112
10 2 1-Zr_s 300 1798 0.092 15347 250 110 2.3 9.0 112
11 1 1-Hf_s 300 791 0.097 36770 1788 995 1.8 11.5 101
12 2 1-Hf_s 300 830 0.094 33980 1836 1045 1.8 11.8 101
Table 9. Reaction conditions for propylene homopolymerization (PP) using supported catalysts.
Table 10. Catalyst activity and polymer properties for propylene homopolymerization (PP) using supported catalysts.
activity Mw Mn Tm
Entry Run Catalyst Experiment time yield
(g/mmol- Mw/Mn
(s) (g) (kg/mol) (kg/mol) (°C) hr)
1 1 1-Zr_s PP 2700.4 0.008 711 - - - -
2 2 1-Zr_s PP 2700.5 0.011 978 72 39 1.845 158.8
3 1 1-Hf_s PP 2700.7 0.012 1,066 142 80 1.773 161.5
4 2 1-Hf_s PP 2700.6 0.014 1,244 149 76 1.959 162.8
5 1 1-Zr_s PP/H2 2700.8 0.012 1,066 34 15 2.281 155.4
6 2 1-Zr_s PP/H2 2700.2 0.015 1,333 37 19 1.951 156.0
7 1 1-Hf_s PP/H2 2700.8 0.012 1,066 85 46 1.83 160.6
8 2 1-Hf_s PP/H2 2700.2 0.014 1,244 78 43 1.835 161.4
Table 11. Reaction conditions for ethylene-propylene copolymerization (EP) using supported catalysts.
Table 12. Catalyst activity and polymer properties for ethylene -propylene copolymerization (EP) using supported catalysts.
activity t%
time yield Mw Mn Tm
Entry Run Catalyst (g/mmol- Mw/Mn propylene
(s) (g) (kg/mol) (kg/mol) (°C)
hr) OH NMR)
1 1 1-Zr_s 190.2 0.072 90,852 194 122 1.588 - 45.4
2 2 1-Zr_s 149.9 0.083 132,889 248 150 1.652 25.8 -
3 1 1-Hf_s 356.7 0.058 39,024 1,344 801 1.678 - 59.1
4 2 1-Hf_s 294.7 0.065 52,935 2,299 1,525 1.508 23.0 61.3
Table 13. Reaction conditions for ethylene-octene copolymerization (EO) using various chain transfer agents (CTA).
Table 14. Catalyst activity and polymer properties for ethylene-octene copolymerization (EO) using various CTAs.
activity Mw
nmol time yield Mn corr t% Tm
Entry Run Catalyst CTA (g/mmol- corr Mw/Mn
Al or Zn (s) (g) (kg/mol) octene (°C) hr) (kg/mol)
1 1 1-Zr diethylzinc 400 30 0.088 526246 97 56 1.7 6.6 118
2 2 1-Zr diethylzinc 400 25 0.085 621951 100 60 1.7 4.6 119
3 1 1-Zr diethylzinc 1600 23 0.076 602643 51 30 1.7 4.5 122
4 2 1-Zr diethylzinc 1600 24 0.071 532500 51 32 1.6 2.8 124
5 1 1-Zr diethylzinc 2800 25 0.067 474803 37 22 1.7 4.3 126
6 2 1-Zr diethylzinc 2800 26 0.070 492188 35 21 1.7 3.3 127
7 1 1-Zr diethylzinc 4000 23 0.069 533047 28 15 2.0 3.6 129
8 2 1-Zr diethylzinc 4000 22 0.065 531818 29 16 1.8 2.7 132
9 1 1-Zr TNOAL 400 31 0.092 539414 142 86 1.7 3.7 118
10 2 1-Zr TNOAL 400 29 0.092 567123 137 75 1.8 4.7 118
11 1 1-Zr TNOAL 1600 23 0.082 650220 112 61 1.8 6.8 119
12 2 1-Zr TNOAL 1600 23 0.075 576923 113 66 1.7 4.7 119
13 1 1-Zr TNOAL 2800 23 0.078 618502 100 50 2.0 4.5 120
14 2 1-Zr TNOAL 2800 21 0.079 667606 94 45 2.1 4.2 120
15 1 1-Zr TNOAL 4000 24 0.073 549791 86 45 1.9 3.9 122
16 2 1-Zr TNOAL 4000 21 0.075 630841 83 47 1.8 3.6 124
17 1 1-Zr DIBALO 400 30 0.087 516832 148 87 1.7 5.8 118
18 2 1-Zr DIBALO 400 32 0.086 486792 146 84 1.7 5.2 118
19 1 1-Zr DIBALO 1600 25 0.082 583399 147 85 1.7 4.9 118
20 2 1-Zr DIBALO 1600 26 0.083 568061 137 73 1.9 4.4 119
21 1 1-Zr DIBALO 2800 26 0.081 556489 138 79 1.8 5.3 119
22 2 1-Zr DIBALO 2800 26 0.083 574615 137 71 1.9 4.5 120
23 1 1-Zr DIBALO 4000 25 0.086 619200 141 79 1.8 4.7 122
24 2 1-Zr DIBALO 4000 24 0.084 643404 131 72 1.8 3.4 124
25 1 1-Hf diethylzinc 400 179 0.048 48376 110 69 1.6 4.0 121
26 2 1-Hf diethylzinc 400 164 0.046 50396 100 60 1.7 3.5 121
27 1 1-Hf diethylzinc 1600 224 0.044 35373 44 28 1.6 3.4 124
28 2 1-Hf diethylzinc 1600 369 0.040 19528 36 20 1.8 5.1 124
29 1 1-Hf diethylzinc 2800 427 0.037 15590 25 14 1.7 4.0 128
30 2 1-Hf diethylzinc 2800 277 0.041 26681 25 13 1.9 3.8 128
31 1 1-Hf diethylzinc 4000 310 0.034 19729 18 8 2.2 3.8 130
32 2 1-Hf diethylzinc 4000 304 0.038 22500 18 10 1.8 5.0 128
33 1 1-Hf TNOAL 400 378 0.086 40942 606 351 1.7 6.6 114
34 2 1-Hf TNOAL 400 299 0.077 46386 684 428 1.6 5.1 115
35 1 1-Hf TNOAL 1600 154 0.050 58480 427 247 1.7 4.9 117
36 2 1-Hf TNOAL 1600 157 0.049 56036 412 249 1.7 4.5 117
37 1 1-Hf TNOAL 2800 174 0.047 48593 326 188 1.7 4.6 119
38 2 1-Hf TNOAL 2800 182 0.045 44579 296 163 1.8 4.0 120
39 1 1-Hf TNOAL 4000 173 0.041 42733 289 149 1.9 3.7 122
40 2 1-Hf TNOAL 4000 201 0.042 37556 236 130 1.8 3.7 122
41 1 1-Hf DIBALO 400 567 0.092 29201 688 379 1.8 6.5 113
42 2 1-Hf DIBALO 400 189 0.059 56101 787 474 1.7 4.6 115
43 1 1-Hf DIBALO 1600 402 0.086 38527 753 452 1.7 4.9 115
44 2 1-Hf DIBALO 1600 168 0.053 56752 763 437 1.7 5.6 117
45 1 1-Hf DIBALO 2800 217 0.066 54822 744 377 2.0 3.5 119
46 2 1-Hf DIBALO 2800 147 0.048 58856 774 386 2.0 3.4 120
47 1 1-Hf DIBALO 4000 183 0.053 52131 789 391 2.0 2.7 122
1-48 2 1-Hf DIBALO 4000 180 0.057 57095 824 495 1.7 3.1 122
DIBALO is bis(diisobuty aluminum)oxide. Entries 1-8 and 25-32 had 300 nmol of TNOAL in addition to the diethylzinc reagent. Mw corr and Mn corr correspond to the GPC values (based on polystyrene standards) for Mw and Mn, respectively, divided by 2 to correct for EO.
The procedure of Tables 3 and 4 was repeated except that the temperature was 85 or 100°C and the setpoint pressure is 130 or 140 psi, as indicated in Table 15. The data are presented in Table 15.
Table 15. Propylene Polymerization Using Activator- 1.
Figure 2 shows chain transfer efficiency of 1-Zr (data from Table 14, Entries 1-24). The equation and coefficient of determination of the linear fits (least squared fit, Microsoft™ Excel 2010) are included in the figure. The slope of the linear fit corresponds to the number of chains transferred to the CTA metal (per metal). The figure shows that diethylzinc is an effective CTA with 1-Zr.
Figure 3 shows the chain transfer efficiency of 1-Hf (data from Table 14, Entries 1- 24). The equation and coefficient of determination of the linear fits (least squared fit, Microsoft™ Excel 2010) are included in the figure. The slope of the linear fit corresponds to the number of chains transferred to the CTA metal (per metal). The figure shows that diethylzinc is an effective CTA with 1-Hf.
Additional GPC Analysis for Selected Polymer Samples. Mw, Mn, and Mw/Mn are determined by using a High Temperature Size Exclusion Chromatograph (Polymer Laboratories), equipped with three in-line detectors, a differential refractive index detector (DRI), a light scattering (LS) detector, and a viscometer. Experimental details, including detector calibration, are described in: T. Sun, P. Brant, R. R. Chance, and W. W. Graessley, Macromolecules, Volume 34, Number 19, pp. 6812-6820, (2001), and references therein. Three Polymer Laboratories PLgel ΙΟμιη Mixed-B LS columns are used. The nominal flow rate is 0.5 niL/min, and the nominal injection volume is 300 μί. The various transfer lines, columns, viscometer and differential refractometer (the DRI detector) are contained in an
oven maintained at 145°C. Solvent for the experiment is prepared by dissolving 6 grams of butylated hydroxytoluene as an antioxidant in 4 liters of Aldrich reagent grade 1, 2, 4 trichlorobenzene (TCB). The TCB mixture is then filtered through a 0.1 μιη Teflon filter. The TCB is then degassed with an online degasser before entering the Size Exclusion Chromatograph. Polymer solutions are prepared by placing dry polymer in a glass container, adding the desired amount of TCB, then heating the mixture at 160°C with continuous shaking for about 2 hours. All quantities are measured gravimetrically. The TCB densities used to express the polymer concentration in mass/volume units are 1.463 g/ml at room temperature and 1.284 g/ml at 145°C. The injection concentration is from 0.5 to 2.0 mg/ml, with lower concentrations being used for higher molecular weight samples. Prior to running each sample the DRI detector and the injector are purged. Flow rate in the apparatus is then increased to 0.5 ml/minute, and the DRI is allowed to stabilize for 8 to 9 hours before injecting the first sample. The LS laser is turned on at least 1 to 1.5 hours before running the samples. The concentration, c, at each point in the chromatogram is calculated from the baseline- subtracted DRI signal, IDRI, using the following equation:
c = KDRilDRi/(dn/dc)
where KDRI is a constant determined by calibrating the DRI, and (dn/dc) is the refractive index increment for the system. The refractive index, n = 1.500 for TCB at 145°C and λ = 660 nm. Units on parameters throughout this description of the GPC-SEC method are such that concentration is expressed in g/cm3, molecular weight is expressed in g/mole, and intrinsic viscosity is expressed in dL/g.
The LS detector is a Wyatt Technology High Temperature DAWN HELEOS. The molecular weight, M, at each point in the chromatogram is determined by analyzing the LS output using the Zimm model for static light scattering (M.B. Huglin, LIGHT SCATTERING FROM POLYMER SOLUTIONS, Academic Press, 1971):
i_i -_L+ 2A c
AR(G) ΜΡ(Θ) 2
Here, AR(6) is the measured excess Rayleigh scattering intensity at scattering angle Θ, c is the polymer concentration determined from the DRI analysis, A2 is the second virial coefficient, for purposes of this invention A2 = 0.0006, (dn/dc) is the refractive index increment for the system. Ρ(θ) is the form factor for a monodisperse random coil, and K0 is the optical constant for the system:
where NA is Avogadro 's number, and (dn/dc) is the refractive index increment for the system. The refractive index, n = 1.500 for TCB at 145 °C and λ = 660 nm.
A high temperature Viscotek Corporation viscometer, which has four capillaries arranged in a Wheatstone bridge configuration with two pressure transducers, is used to determine specific viscosity. One transducer measures the total pressure drop across the detector, and the other, positioned between the two sides of the bridge, measures a differential pressure. The specific viscosity, ns, for the solution flowing through the viscometer is calculated from their outputs. The intrinsic viscosity, [η], at each point in the chromatogram is calculated from the following equation:
T|s = c[n] + 0.3(c[T|])2
where c is concentration and was determined from the DRI output.
The branching index (g'vis) is calculated using the output of the SEC-DRI-LS-VIS method as follows. The average intrinsic viscosity, [r|]avg, of the sample is calculated by:
where, for purpose of this invention and claims thereto, a = 0.695 and k = 0.000579 for linear ethylene polymers, a = 0.705 k = 0.000262 for linear propylene polymers, and a = 0.695 and k = 0.000181 for linear butene polymers. Mv is the viscosity-average molecular weight based on molecular weights determined by LS analysis. See Macromolecules, 2001, 34, 6812-6820 and Macromolecules, 2005, 38, 7181-7183, for guidance on selecting a linear standard having similar molecular weight and comonomer content, and determining k coefficients and a exponents.
All documents described herein are incorporated by reference herein, including any priority documents and/or testing procedures to the extent they are not inconsistent with this text. As is apparent from the foregoing general description and the specific embodiments, while forms of the invention have been illustrated and described, various modifications can be made without departing from the spirit and scope of the invention. Accordingly, it is not
intended that the invention be limited thereby. The term "comprising" is considered synonymous with the term "including." Likewise, whenever a composition, an element, or a group of elements is preceded with the transitional phrase "comprising," it is understood that we also contemplate the same composition or group of elements with transitional phrases "consisting essentially of," "consisting of," "selected from the group of consisting of," or "is" preceding the recitation of the composition, element, or elements and vice versa.
Claims
1. A ligand represented by the formula A):
where each Q is neutral donor group comprising at least one atom from Group 15 or Group 16 , and R3 is not present when Q is a Group 16 atom;
R2 each L is independently R2 and is not part of an aromatic ring;
y is greater than or equal to 2;
R1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups;
each Ra, Rb, Rc, Rd, Re, Rf, Rg, and Rh is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
each R2 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic; and
each R3 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
2. A transition metal complex re resented by the formula (I):
wherein M is a Group 4 transition metal;
each Q is neutral donor group comprising at least one atom from Group 15 or Group 16, and R3 is not present when Q is a Group 16 atom;
R2
— (f¼-
R2
each L is independently and is not part of an aromatic ring;
y is greater than or equal to 2;
X1 and X2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure;
R1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking between the two Q groups;
each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a hydrogen, a C1-C60 hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
each R2 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic or polycyclic ring structure is not aromatic; and
each R3 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
3. The transition metal complex of claim 2 where in the complexes are represented by the formula (II)
wherein M is a Group 4 transition metal;
each Q is neutral donor group comprising at least one atom from Group 15 or Group 16, and R3 is not present when Q is a Group 16 atom;
X1 and X2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure;
R1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking between the two Q groups;
each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof;
each R2 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic, polycyclic or heterocyclic structure is not aromatic; and
each R3 is, independently, a hydrogen, a C1-C40 hydrocarbyl radical, a C1-C40 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group.
4. The ligand or transition metal complex of claim 1, 2, or 3 wherein Ra and Re are carbazolyl, substituted carbazolyl, indolyl, substituted indolyl, indolinyl, substituted indolinyl, imidazolyl, substituted imidazolyl, indenyl, substituted indenyl, indanyl, substituted indanyl, fluorenyl, or substituted fluorenyl, preferably Ra and Re are the same.
5. The ligand or transition metal complex of any of claims 1 to 4, wherein Q is a neutral donor group comprising at least one atom from Group 15 or Group 16 and the -(-Q-R^Q-)- fragment can form a substituted or unsubstituted heterocycle which may or may not be aromatic and may have multiple fused rings, preferably wherein Q is NR'2, OR', SR', PR'2, where R' is as defined for Ra.
6. The ligand or transition metal complex of any of claims 1 to 5, wherein each Ra, Rb, Rc, Rd, Re, Rf, Rs, and Rh is independently a hydrogen, a C1-C60 hydrocarbyl radical, a substituted hydrocarbyl radical, a heteroatom, or a heteroatom-containing group, or may independently form a C4 to C6o cyclic or polycyclic ring structure with R6, R7, or R6, or a combination thereof.
7. The ligand or transition metal complex of any of claims 1 to 6, wherein M is Hf or Zr.
8. The ligand or transition metal complex of any of claims 1 to 7 wherein Q is O, N, S, or P.
9. The ligand or transition metal complex of any of claims 1 to 8 wherein Ra and Re are carbazolyl or substituted carbazolyl.
10. The ligand or transition metal complex of any of claims 1 to 9 wherein R1 is a divalent C1-C20 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups.
11. A catalyst system comprising activator and the complex of any of claims 2 to 10.
12. The catalyst system of claim 11, wherein the catalyst system further comprises chain transfer agent.
13. The catalyst system of claim 11, wherein the catalyst system further comprises chain transfer agent represented by the formula R3AI or R2Zn, where R is a Ci to C20 alkyl group.
14. The catalyst system of claim 11, 12, or, 13, wherein the activator is an alumoxane.
15. The catalyst system of claim 11, 12, 13, or 14, wherein the activator is a non- coordinating anion.
16. The catalyst system of claim 11, 12, or 13, wherein the activator is selected from the group consisting of: methylalumoxane, ethylalumoxane, isobutyl alumoxane, N,N- dimethylanilinium tetra(perfluorophenyl)borate, N,N-dimethylanilinium tetrakis(perfluoronaphthyl)borate, Ν,Ν-dimethylanilinium tetrakis(perfluorobiphenyl)borate, Ν,Ν-dimethylanilinium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetrakis(perfluoronaphthyl)borate, triphenylcarbenium tetrakis(perfluorobiphenyl)borate, triphenylcarbenium tetrakis(3 ,5-bis(trifluoromethyl)phenyl)borate, triphenylcarbenium tetra(perfluorophenyl)borate, triphenylcarbenium tetrakis(perfluorophenyl)borate, l-(4- (tris(pentafluorophenyl)borate)-2,3,5,6-tetrafluorophenyl)pyrrolidinium,
tetrakis(pentafluorophenyl)borate, and 4-(tris(pentafluorophenyl)borate)-2,3,5,6- tetrafluoropyridine.
17. A polymerization process to produce polyolefin comprising:
a) contacting one or more olefin monomers with the catalyst system of any of claims
11 to 16, and
b) recovering olefin polymer.
18. The process of claim 17, wherein the monomer comprises ethylene and/or propylene.
19. The process of claim 17 or 18 wherein the transition metal complex is supported.
20. The process of any of claims 17 to 19, wherein chain transfer agent represented by the formula R3AI or R2Zn is present at a molar ratio of transition metal to Al and Zn of at least 10: 1, where R is a Ci to C40 alkyl group.
21. The process of any of claims 17 to 20, wherein the process is a continuous process.
22. The process of any of claims 17 to 21, wherein step a) occurs at a temperature of at least 70°C.
23. The process of any of claims 17 to 22, wherein hydrogen is present in step a).
24. The process of any of claims 17 to 23, wherein hydrogen and chain transfer agent are present in step a).
25. A transition metal com lex are represented by the formula:
wherein X1 and X2 are, independently, a univalent Ci to C20 hydrocarbyl radical, a Ci to C20 substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure;
R1 is a divalent C1-C40 hydrocarbyl radical or divalent substituted hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 1 to 18 carbon atoms linking or bridging between the two Q groups;
each Ra and Re is, independently, phenyl or substituted phenyl;
each Rb, Rc, Rd, Rf, Rs, and Rh is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more of Ra to Rh may independently join together to form a C4 to C62 cyclic, polycyclic or heterocyclic structure, or a combination thereof; and
each R2 is, independently, a hydrogen, a Ci-C4o hydrocarbyl radical, a Ci-C4o substituted hydrocarbyl radical, a heteroatom or a heteroatom-containing group, or two or more adjacent R2 groups may independently join together to form a C4 to C62 cyclic or polycyclic ring structure, or a combination thereof, provided that such cyclic, polycyclic or heterocyclic structure is not aromatic.
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