JP6520319B2 - タイヤ用ゴム組成物 - Google Patents
タイヤ用ゴム組成物 Download PDFInfo
- Publication number
- JP6520319B2 JP6520319B2 JP2015076512A JP2015076512A JP6520319B2 JP 6520319 B2 JP6520319 B2 JP 6520319B2 JP 2015076512 A JP2015076512 A JP 2015076512A JP 2015076512 A JP2015076512 A JP 2015076512A JP 6520319 B2 JP6520319 B2 JP 6520319B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- aromatic vinyl
- conjugated diene
- rubber
- polymer block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920001971 elastomer Polymers 0.000 title claims description 67
- 239000005060 rubber Substances 0.000 title claims description 67
- 239000000203 mixture Substances 0.000 title claims description 62
- 229920000642 polymer Polymers 0.000 claims description 144
- 239000000178 monomer Substances 0.000 claims description 142
- 229920002554 vinyl polymer Polymers 0.000 claims description 121
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 102
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 81
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 72
- 229920003244 diene elastomer Polymers 0.000 claims description 58
- 150000001993 dienes Chemical class 0.000 claims description 57
- 239000000377 silicon dioxide Substances 0.000 claims description 36
- 229920001577 copolymer Polymers 0.000 claims description 35
- 125000003118 aryl group Chemical group 0.000 claims description 29
- 125000003700 epoxy group Chemical group 0.000 claims description 27
- 239000003607 modifier Substances 0.000 claims description 27
- 125000003545 alkoxy group Chemical group 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 description 51
- JSNRRGGBADWTMC-UHFFFAOYSA-N (6E)-7,11-dimethyl-3-methylene-1,6,10-dodecatriene Chemical compound CC(C)=CCCC(C)=CCCC(=C)C=C JSNRRGGBADWTMC-UHFFFAOYSA-N 0.000 description 40
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 34
- 239000000243 solution Substances 0.000 description 27
- -1 aromatic vinyl compound Chemical class 0.000 description 22
- 125000004432 carbon atom Chemical group C* 0.000 description 20
- 229920003048 styrene butadiene rubber Polymers 0.000 description 20
- 239000003505 polymerization initiator Substances 0.000 description 19
- 239000003795 chemical substances by application Substances 0.000 description 17
- 230000007774 longterm Effects 0.000 description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 238000013329 compounding Methods 0.000 description 15
- CXENHBSYCFFKJS-UHFFFAOYSA-N (3E,6E)-3,7,11-Trimethyl-1,3,6,10-dodecatetraene Natural products CC(C)=CCCC(C)=CCC=C(C)C=C CXENHBSYCFFKJS-UHFFFAOYSA-N 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 13
- 230000000704 physical effect Effects 0.000 description 13
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 238000009826 distribution Methods 0.000 description 11
- 229930009668 farnesene Natural products 0.000 description 11
- 239000012442 inert solvent Substances 0.000 description 11
- 238000002156 mixing Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- JSNRRGGBADWTMC-QINSGFPZSA-N (E)-beta-Farnesene Natural products CC(C)=CCC\C(C)=C/CCC(=C)C=C JSNRRGGBADWTMC-QINSGFPZSA-N 0.000 description 10
- 239000002174 Styrene-butadiene Substances 0.000 description 10
- YSNRTFFURISHOU-UHFFFAOYSA-N beta-farnesene Natural products C=CC(C)CCC=C(C)CCC=C(C)C YSNRTFFURISHOU-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000005227 gel permeation chromatography Methods 0.000 description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- 239000006087 Silane Coupling Agent Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000007822 coupling agent Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 239000004793 Polystyrene Substances 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 229920002223 polystyrene Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 4
- 239000003999 initiator Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- 150000001339 alkali metal compounds Chemical class 0.000 description 3
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cis-cyclohexene Natural products C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000000379 polymerizing effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- ICJGKYTXBRDUMV-UHFFFAOYSA-N trichloro(6-trichlorosilylhexyl)silane Chemical compound Cl[Si](Cl)(Cl)CCCCCC[Si](Cl)(Cl)Cl ICJGKYTXBRDUMV-UHFFFAOYSA-N 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- AHAREKHAZNPPMI-AATRIKPKSA-N (3e)-hexa-1,3-diene Chemical compound CC\C=C\C=C AHAREKHAZNPPMI-AATRIKPKSA-N 0.000 description 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- XWJBRBSPAODJER-UHFFFAOYSA-N 1,7-octadiene Chemical compound C=CCCCCC=C XWJBRBSPAODJER-UHFFFAOYSA-N 0.000 description 2
- OUSXYCTXXLYBGJ-UHFFFAOYSA-N 1-ethenyl-2,4-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=C(C=C)C(C(C)C)=C1 OUSXYCTXXLYBGJ-UHFFFAOYSA-N 0.000 description 2
- OEVVKKAVYQFQNV-UHFFFAOYSA-N 1-ethenyl-2,4-dimethylbenzene Chemical compound CC1=CC=C(C=C)C(C)=C1 OEVVKKAVYQFQNV-UHFFFAOYSA-N 0.000 description 2
- NVZWEEGUWXZOKI-UHFFFAOYSA-N 1-ethenyl-2-methylbenzene Chemical compound CC1=CC=CC=C1C=C NVZWEEGUWXZOKI-UHFFFAOYSA-N 0.000 description 2
- JZHGRUMIRATHIU-UHFFFAOYSA-N 1-ethenyl-3-methylbenzene Chemical compound CC1=CC=CC(C=C)=C1 JZHGRUMIRATHIU-UHFFFAOYSA-N 0.000 description 2
- QEDJMOONZLUIMC-UHFFFAOYSA-N 1-tert-butyl-4-ethenylbenzene Chemical compound CC(C)(C)C1=CC=C(C=C)C=C1 QEDJMOONZLUIMC-UHFFFAOYSA-N 0.000 description 2
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 2
- FZLHAQMQWDDWFI-UHFFFAOYSA-N 2-[2-(oxolan-2-yl)propan-2-yl]oxolane Chemical compound C1CCOC1C(C)(C)C1CCCO1 FZLHAQMQWDDWFI-UHFFFAOYSA-N 0.000 description 2
- GAODDBNJCKQQDY-UHFFFAOYSA-N 2-methyl-4,6-bis(octylsulfanylmethyl)phenol Chemical compound CCCCCCCCSCC1=CC(C)=C(O)C(CSCCCCCCCC)=C1 GAODDBNJCKQQDY-UHFFFAOYSA-N 0.000 description 2
- RCJMVGJKROQDCB-UHFFFAOYSA-N 2-methylpenta-1,3-diene Chemical compound CC=CC(C)=C RCJMVGJKROQDCB-UHFFFAOYSA-N 0.000 description 2
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical class [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000003811 acetone extraction Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 2
- 239000003708 ampul Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- UAHWPYUMFXYFJY-UHFFFAOYSA-N beta-myrcene Chemical compound CC(C)=CCCC(=C)C=C UAHWPYUMFXYFJY-UHFFFAOYSA-N 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 150000002603 lanthanum Chemical class 0.000 description 2
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 2
- OJOWICOBYCXEKR-APPZFPTMSA-N (1S,4R)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound CC=C1C[C@@H]2C[C@@H]1C=C2 OJOWICOBYCXEKR-APPZFPTMSA-N 0.000 description 1
- NSYRAUUZGRPOHS-BQYQJAHWSA-N (3E)-2-methylocta-1,3-diene Chemical compound CCCC\C=C\C(C)=C NSYRAUUZGRPOHS-BQYQJAHWSA-N 0.000 description 1
- ZTJHDEXGCKAXRZ-FNORWQNLSA-N (3e)-octa-1,3,7-triene Chemical compound C=CCC\C=C\C=C ZTJHDEXGCKAXRZ-FNORWQNLSA-N 0.000 description 1
- CORMBJOFDGICKF-UHFFFAOYSA-N 1,3,5-trimethoxy 2-vinyl benzene Natural products COC1=CC(OC)=C(C=C)C(OC)=C1 CORMBJOFDGICKF-UHFFFAOYSA-N 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- QTYUSOHYEPOHLV-FNORWQNLSA-N 1,3-Octadiene Chemical compound CCCC\C=C\C=C QTYUSOHYEPOHLV-FNORWQNLSA-N 0.000 description 1
- NYCCIHSMVNRABA-UHFFFAOYSA-N 1,3-diethylimidazolidin-2-one Chemical compound CCN1CCN(CC)C1=O NYCCIHSMVNRABA-UHFFFAOYSA-N 0.000 description 1
- PRBHEGAFLDMLAL-UHFFFAOYSA-N 1,5-Hexadiene Natural products CC=CCC=C PRBHEGAFLDMLAL-UHFFFAOYSA-N 0.000 description 1
- XQBHAZDVLGNSOJ-UHFFFAOYSA-N 1-(4-ethenylphenyl)-n,n-dimethylmethanamine Chemical compound CN(C)CC1=CC=C(C=C)C=C1 XQBHAZDVLGNSOJ-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- VDNSZPNSUQRUMS-UHFFFAOYSA-N 1-cyclohexyl-4-ethenylbenzene Chemical compound C1=CC(C=C)=CC=C1C1CCCCC1 VDNSZPNSUQRUMS-UHFFFAOYSA-N 0.000 description 1
- WJNKJKGZKFOLOJ-UHFFFAOYSA-N 1-dodecyl-4-ethenylbenzene Chemical compound CCCCCCCCCCCCC1=CC=C(C=C)C=C1 WJNKJKGZKFOLOJ-UHFFFAOYSA-N 0.000 description 1
- VTPNYMSKBPZSTF-UHFFFAOYSA-N 1-ethenyl-2-ethylbenzene Chemical compound CCC1=CC=CC=C1C=C VTPNYMSKBPZSTF-UHFFFAOYSA-N 0.000 description 1
- XHUZSRRCICJJCN-UHFFFAOYSA-N 1-ethenyl-3-ethylbenzene Chemical compound CCC1=CC=CC(C=C)=C1 XHUZSRRCICJJCN-UHFFFAOYSA-N 0.000 description 1
- JHTICDZLXFNVKL-UHFFFAOYSA-N 1-ethenyl-4-(4-phenylbutyl)benzene Chemical compound C1=CC(C=C)=CC=C1CCCCC1=CC=CC=C1 JHTICDZLXFNVKL-UHFFFAOYSA-N 0.000 description 1
- WHFHDVDXYKOSKI-UHFFFAOYSA-N 1-ethenyl-4-ethylbenzene Chemical compound CCC1=CC=C(C=C)C=C1 WHFHDVDXYKOSKI-UHFFFAOYSA-N 0.000 description 1
- UAJRSHJHFRVGMG-UHFFFAOYSA-N 1-ethenyl-4-methoxybenzene Chemical compound COC1=CC=C(C=C)C=C1 UAJRSHJHFRVGMG-UHFFFAOYSA-N 0.000 description 1
- VVTGQMLRTKFKAM-UHFFFAOYSA-N 1-ethenyl-4-propylbenzene Chemical compound CCCC1=CC=C(C=C)C=C1 VVTGQMLRTKFKAM-UHFFFAOYSA-N 0.000 description 1
- UVHXEHGUEKARKZ-UHFFFAOYSA-N 1-ethenylanthracene Chemical compound C1=CC=C2C=C3C(C=C)=CC=CC3=CC2=C1 UVHXEHGUEKARKZ-UHFFFAOYSA-N 0.000 description 1
- WHKQKJYDBPVOLB-UHFFFAOYSA-N 1-ethenylnaphthalene;2-ethenylnaphthalene Chemical compound C1=CC=CC2=CC(C=C)=CC=C21.C1=CC=C2C(C=C)=CC=CC2=C1 WHKQKJYDBPVOLB-UHFFFAOYSA-N 0.000 description 1
- JMVIVASFFKKFQK-UHFFFAOYSA-N 1-phenylpyrrolidin-2-one Chemical compound O=C1CCCN1C1=CC=CC=C1 JMVIVASFFKKFQK-UHFFFAOYSA-N 0.000 description 1
- IGGDKDTUCAWDAN-UHFFFAOYSA-N 1-vinylnaphthalene Chemical compound C1=CC=C2C(C=C)=CC=CC2=C1 IGGDKDTUCAWDAN-UHFFFAOYSA-N 0.000 description 1
- JXBSHSBNOVLGHF-UHFFFAOYSA-N 10-cis-Dihydrofarnesen Natural products CC=C(C)CCC=C(C)CCC=C(C)C JXBSHSBNOVLGHF-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- CISIJYCKDJSTMX-UHFFFAOYSA-N 2,2-dichloroethenylbenzene Chemical compound ClC(Cl)=CC1=CC=CC=C1 CISIJYCKDJSTMX-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- BIOCRZSYHQYVSG-UHFFFAOYSA-N 2-(4-ethenylphenyl)-n,n-diethylethanamine Chemical compound CCN(CC)CCC1=CC=C(C=C)C=C1 BIOCRZSYHQYVSG-UHFFFAOYSA-N 0.000 description 1
- LIZGLUQDMOJDMM-UHFFFAOYSA-N 2-(methylamino)benzaldehyde Chemical compound CNC1=CC=CC=C1C=O LIZGLUQDMOJDMM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- PDELBHCVXBSVPJ-UHFFFAOYSA-N 2-ethenyl-1,3,5-trimethylbenzene Chemical compound CC1=CC(C)=C(C=C)C(C)=C1 PDELBHCVXBSVPJ-UHFFFAOYSA-N 0.000 description 1
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- 239000011787 zinc oxide Substances 0.000 description 1
Description
得られた試験片から、JIS K6251に準拠してJIS3号ダンベル型試験片を切り出した。JIS K6251に準拠し500mm/分の引張り速度、雰囲気温度20℃の条件で、引張り破断強度および引張り破断伸度を測定した。得られた結果は、比較例1の値をそれぞれ100とする指数として「引張り強度」および「引張り伸度」の欄にそれぞれ示した。引張り強度の指数が大きいほど引張り破断強度が大きく、引張り伸度の指数が大きいほど引張り破断伸度が大きく、優れることを意味する。
得られた試験片のゴム硬度を、JIS K6253に準拠しデュロメータのタイプAにより温度20℃で測定した。比較例1の値をそれぞれ100とする指数として「ゴム硬度」の欄に示した。この指数が大きいほどゴム硬度が高いことを意味する。
得られた試験片の動的粘弾性を、東洋精機製作所社製粘弾性スペクトロメーターを用いて、初期歪み10%、振幅±2%、周波数20Hzの条件で、雰囲気温度0℃におけるtanδを測定した。得られた結果は、比較例1の値を100とする指数で表わし表1の「ウェットグリップ性能」の欄に示した。この指数が大きいほど0℃のtanδが大きく、タイヤにしたときウェットグリップ性能が優れることを意味する。
ゴム組成物を160℃で20分加硫して、得られた加硫ゴム2g中の試料をアセトン100mlでソックスレー抽出器(JIS K6229に準拠)を用いて48時間抽出して、試料全体に占める抽出したオイルの含有量の割合(アセトン抽出量)を求めた。得られた結果は、比較例1の値を100とする指数で表わし表1の「長期物性安定性」の欄に示した。この指数が小さいほどアセトン抽出量が小さく、タイヤにしたとき長期物性安定性が優れることを意味する。
・SBR1:スチレンブタジエンゴム、日本ゼオン社製Nipol NS460、スチレンブタジエンゴム100重量部にオイル成分37.5重量部を配合した油展製品、スチレン量が25重量%、ビニル単位量が63重量%、重量平均分子量が78万
・SBR2:スチレンブタジエンゴム、旭化成社製SBR E581、スチレンブタジエンゴム100重量部にオイル成分37.5重量部を配合した油展製品、スチレン量が40重量%、ビニル単位量が44重量%、重量平均分子量が126万
合成例1
〔SBR3の製造方法〕
窒素置換された内容量10Lのオートクレーブ反応器に、シクロヘキサン4533g、スチレン338.9g(3.254mol)、ブタジエン468.0g(8.652mol)、イソプレン20.0g(0.294mol)およびN,N,N′,N′−テトラメチルエチレンジアミン0.189mL(1.271mmol)を仕込み、攪拌を開始した。反応容器内の内容物の温度を50℃にした後、n−ブチルリチウム5.061mL(7.945mmol)を添加した。重合転化率がほぼ100%に到達した後、さらにイソプレン12.0gを添加して5分間反応させた後、1,6−ビス(トリクロロシリル)ヘキサンの40wt%トルエン溶液0.281g(0.318mmol)を添加し、30分間反応させた。さらに、下記に示すポリオルガノシロキサンAの40wt%キシレン溶液18.3g(0.318mmol)を添加し、30分間反応させた。メタノール0.5mLを添加して30分間攪拌した。得られたポリマー溶液に老化防止剤(イルガノックス1520、BASF社製)を少量添加し、伸展油としてフッコールエラミック30(新日本石油(株)製)を25部添加した後、スチームストリッピング法により固体状のゴムを回収した。得られた固体ゴムをロールにより脱水し、乾燥機中で乾燥を行い、SBR3を得た。
窒素置換された100mlアンプル瓶に、シクロヘキサン28gおよびテトラメチルエチレンジアミン8.6mmolを添加し、さらに、n−ブチルリチウム6.1mmolを添加した。次いで、イソプレン8.0gをゆっくりと添加し、60℃のアンプル瓶内で120分反応させることにより、イソプレンブロック(開始剤1とする)を得た。この開始剤1は、重量平均分子量が2200、分子量分布(Mw/Mn)が1.08、およびイソプレン単位由来のビニル結合含有量が72.3重量%であった。
次に、撹拌機付きオートクレーブに、窒素雰囲気下、シクロヘキサン4000g、1,3−ブタジエン357.7gおよびスチレン132.3gを仕込んだ後、開始剤1を全量加え、40℃で重合を開始した。重合を開始してから10分経過後、1,3−ブタジエン195.3g、スチレン14.7gを60分間かけて連続的に添加した。重合反応中の最高温度は60℃であった。連続添加終了後、さらに20分間重合反応を継続し、重合転化率が95%から100%の範囲になったことを確認してから、次いで、1,6−ビス(トリクロロシリル)ヘキサン0.08mmolを20質量%濃度のシクロヘキサン溶液の状態で添加し、10分間反応させた。さらに、前記合成例1で使用したものと同じポリオルガノシロキサンAを、0.027mmolを20質量%濃度のキシレン溶液の状態で添加し、30分間反応させた。その後、重合停止剤として、使用したn−ブチルリチウムの2倍モルに相当する量のメタノールを添加して、SBR4を含有する溶液を得た。この溶液に、老化防止剤として、イルガノックス1520L(チバスペシャリティーケミカルズ社製)を、100質量部のSBR4に対して0.15質量部添加した後、スチームストリッピングにより溶媒を除去し、60℃で24時間真空乾燥して、固形状のSBR4を得た。
・シリカ1:ローディア社製Zeosil 115GR、窒素吸着比表面積が160m2/g
・シリカ2:ローディア社製Zeosil Premium 200MP、窒素吸着比表面積が200m2/g
・カップリング剤:硫黄含有シランカップリング剤、ビス(3−トリエトキシシリルプロピル)テトラスルフィド、エボニック社製Si69
窒素置換し、乾燥させた耐圧容器に、ヘキサン274g、n−ブチルリチウム(17重量%ヘキサン溶液)1.2gを仕込み、50℃に昇温した後、β−ファルネセン272gを加えて1時間重合した。得られた重合反応液にメタノールを添加後、重合反応液を水で洗浄した。水を分離して、重合反応液を70℃で12時間乾燥することにより、β−ファルネセンの重合体(ファルネセン重合体)を得た。
窒素置換し乾燥させた耐圧容器に、溶媒としてシクロヘキサン1790g、開始剤としてsec−ブチルリチウム(10.5質量%シクロヘキサン溶液)9.0gを仕込み、50℃に昇温した後、テトラヒドロフラン3gを添加し、予め調製したスチレンとβ−ファルネセンとの混合物(スチレン276gとβ−ファルネセン924gとをボンベ内で混合)1200gを10ml/分で加えて1時間重合した。得られた重合反応液をメタノールで処理し、水を用いて重合反応液を洗浄した。洗浄後の重合反応液と水とを分離して、70℃で12時間乾燥することにより、スチレンとβ−ファルネセンのランダム共重合体(ファルネセン共重合体)を得た。
・カーボンブラック:東海カーボン社製シースト6
・ステアリン酸:日油社製ビーズステアリン酸YR
・酸化亜鉛:正同化学工業社製亜鉛華3種
・老化防止剤:フレキシス社製サントフレックス 6PPD
・硫黄:鶴見化学工業社製金華印油入微粉硫黄
・加硫促進剤1:CBS、大内新興化学社製ノクセラーCZ−G
・加硫促進剤2:DPG、住友化学工業社製ソクシノールD−G
Claims (3)
- 芳香族ビニル単位含有量が30〜48重量%である芳香族ビニル−共役ジエン系ゴムを10〜100重量%含むジエン系ゴム100重量部に対し、シリカを40〜150重量部、重量平均分子量が5万〜15万である芳香族ビニル−ファルネセン共重合体を2〜20重量部配合したことを特徴するタイヤ用ゴム組成物。
- 前記シリカの窒素吸着比表面積が150m2/g以上であることを特徴する請求項1に記載のタイヤ用ゴム組成物。
- 前記芳香族ビニル−共役ジエン系ゴムが、活性末端を有する重合体ブロック(A)および活性末端を有する重合体ブロック(B)からなる活性末端を有する共役ジエン系重合体鎖の活性末端に変性剤を反応させた変性芳香族ビニル−共役ジエン系ゴムであって、前記活性末端を有する重合体ブロック(A)が、イソプレン単量体単位80〜95重量%および芳香族ビニル単量体単位5〜20重量%を含む活性末端を有し、前記活性末端を有する重合体ブロック(B)が1,3−ブタジエン単量体単位50〜100重量%および芳香族ビニル単量体単位0〜50重量%を含む活性末端を有し、前記変性剤がエポキシ基およびアルコキシ基から選ばれる少なくとも1つの基を1分子中に3以上有することを特徴する請求項1または2に記載のタイヤ用ゴム組成物。
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