CN103275314B - Preparation method of polymonosulfo-carbonate with regular chain structure - Google Patents
Preparation method of polymonosulfo-carbonate with regular chain structure Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 37
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 230000003197 catalytic effect Effects 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000004593 Epoxy Substances 0.000 claims description 44
- 150000002148 esters Chemical class 0.000 claims description 43
- 239000000178 monomer Substances 0.000 claims description 35
- -1 3,5-di-tert-butyl salicylaldehyde imines Chemical class 0.000 claims description 22
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 18
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 16
- 150000002924 oxiranes Chemical class 0.000 claims description 14
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 10
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 10
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 229960000549 4-dimethylaminophenol Drugs 0.000 claims description 8
- 235000019270 ammonium chloride Nutrition 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- AWMVMTVKBNGEAK-UHFFFAOYSA-N Styrene oxide Chemical compound C1OC1C1=CC=CC=C1 AWMVMTVKBNGEAK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 150000001450 anions Chemical class 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical group CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims description 5
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 5
- 125000005497 tetraalkylphosphonium group Chemical group 0.000 claims description 5
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims description 3
- LSWYGACWGAICNM-UHFFFAOYSA-N 2-(prop-2-enoxymethyl)oxirane Chemical compound C=CCOCC1CO1 LSWYGACWGAICNM-UHFFFAOYSA-N 0.000 claims description 3
- YMHQVDAATAEZLO-UHFFFAOYSA-N cyclohexane-1,1-diamine Chemical compound NC1(N)CCCCC1 YMHQVDAATAEZLO-UHFFFAOYSA-N 0.000 claims description 3
- 150000004985 diamines Chemical group 0.000 claims description 3
- 150000002927 oxygen compounds Chemical class 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 23
- 238000006116 polymerization reaction Methods 0.000 abstract description 9
- 229920000642 polymer Polymers 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000003786 synthesis reaction Methods 0.000 abstract description 6
- 238000007151 ring opening polymerisation reaction Methods 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 150000002118 epoxides Chemical class 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 16
- VEUMANXWQDHAJV-UHFFFAOYSA-N 2-[2-[(2-hydroxyphenyl)methylideneamino]ethyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCN=CC1=CC=CC=C1O VEUMANXWQDHAJV-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 238000012360 testing method Methods 0.000 description 14
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 11
- 239000006227 byproduct Substances 0.000 description 11
- 238000006555 catalytic reaction Methods 0.000 description 11
- 238000007334 copolymerization reaction Methods 0.000 description 11
- 239000012043 crude product Substances 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 6
- HXWGXXDEYMNGCT-UHFFFAOYSA-M decyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)C HXWGXXDEYMNGCT-UHFFFAOYSA-M 0.000 description 6
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- LUZMLJILUGSLNT-UHFFFAOYSA-M P.[Br-].C(CCC)[P+](CCCC)(CCCC)CCCC Chemical compound P.[Br-].C(CCC)[P+](CCCC)(CCCC)CCCC LUZMLJILUGSLNT-UHFFFAOYSA-M 0.000 description 4
- LVRCYPYRKNAAMX-UHFFFAOYSA-M bis(triphenylphosphine)iminium chloride Chemical compound [Cl-].C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)N=P(C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 LVRCYPYRKNAAMX-UHFFFAOYSA-M 0.000 description 4
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- AZSYUHSAQICHNK-UHFFFAOYSA-N [C]=O.[S] Chemical compound [C]=O.[S] AZSYUHSAQICHNK-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920006295 polythiol Polymers 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- ZWAJLVLEBYIOTI-UHFFFAOYSA-N cyclohexene oxide Chemical compound C1CCCC2OC21 ZWAJLVLEBYIOTI-UHFFFAOYSA-N 0.000 description 2
- FWFSEYBSWVRWGL-UHFFFAOYSA-N cyclohexene oxide Natural products O=C1CCCC=C1 FWFSEYBSWVRWGL-UHFFFAOYSA-N 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RUZUMVNATYKTJJ-UHFFFAOYSA-N 2-(4-ethylphenyl)oxirane Chemical compound C1=CC(CC)=CC=C1C1OC1 RUZUMVNATYKTJJ-UHFFFAOYSA-N 0.000 description 1
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- HSSJULAPNNGXFW-UHFFFAOYSA-N [Co].[Zn] Chemical compound [Co].[Zn] HSSJULAPNNGXFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 238000012648 alternating copolymerization Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- HIZCIEIDIFGZSS-UHFFFAOYSA-N carbonotrithioic acid Chemical compound SC(S)=S HIZCIEIDIFGZSS-UHFFFAOYSA-N 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- VILAVOFMIJHSJA-UHFFFAOYSA-N dicarbon monoxide Chemical compound [C]=C=O VILAVOFMIJHSJA-UHFFFAOYSA-N 0.000 description 1
- 125000004119 disulfanediyl group Chemical group *SS* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000001072 heteroaryl group Chemical group 0.000 description 1
- 239000002815 homogeneous catalyst Substances 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 1
- AFFLGGQVNFXPEV-UHFFFAOYSA-N n-decene Natural products CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- SMQUZDBALVYZAC-UHFFFAOYSA-N ortho-hydroxybenzaldehyde Natural products OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical class CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention relates to the field of synthesis of a high polymer material and aims to provide a preparation method of polymonosulfo-carbonate with a regular chain structure. The preparation method comprises the following steps of: adding epoxide, carbonyl sulfide, a catalyst and a catalyst promoter to a dry high-pressure reaction kettle, reacting for 0.5 hour -12.0 hours under self pressure at 0 DEG C-80 DEG C; and purifying and drying to obtain polymonosulfo-carbonate. The catalyst adopted by the preparation method disclosed by the invention has very high catalytic efficiency, and the method which is provided by the invention is different from a ring opening polymerization method for synthesizing polymonosulfo-carbonate in a controllable manner. The polymerization method is simple and easy to operate, and capable of accurately adjusting the polymer structure by adjusting the reaction conditions. The polymonosulfo-carbonate provided by the invention can be used more extensively; and the obtained product has a higher refractive index, for example, the COS-PO copolymer has the refractive index of 1.63, which is remarkably higher than that of the common copolymer, and therefore, the preparation method has a potential application to special optical materials such as adhesives.
Description
Technical field
The invention belongs to synthesis of polymer material field, be specifically related to the preparation method of the regular poly-single thiocarbonic ester of a kind of chain structure with carbon oxysulfide being C1 monomer synthesizes with epoxy compounds one step addition polymerization under catalytic condition.
Background technology
Polythiocarbonates is a kind of sulfur-containing polymer with excellent optical property, chemical stability and good heavy metal ion adsorbed ability, has broad application prospects in the manufacture of high-performance photoconductive fiber, tackiness agent and heavy metal ion-containing waste water process.Usual polythiocarbonates reacts obtained in organic solvent by two mercaptan and phosgene or chloroform, due to the toxic of raw material phosgene, chloroform and solvent etc. used, makes this synthetic route difficulty have the value of existence.The method of another kind of synthesis polythiocarbonates be by five yuan or six-membered cyclic single, two and the ring-opening polymerization of the sub-propyl ester of trithiocarbonic acid realize.But these five-rings or six-ring compound are normally obtained through selectivity coupled reaction by dithiocarbonic anhydride and epoxide, and thus actual is a kind of method indirectly being prepared polythiocarbonates by dithiocarbonic anhydride.Owing to having multiple by product to generate after the coupled reaction of dithiocarbonic anhydride and epoxide, be separated also comparatively difficulty.Applicant once successfully adopted traditional zinc-cobalt dual-metal cyanide complex catalysis dithiocarbonic anhydride and propylene oxide and cyclohexene oxide copolymerization (Macromolecules, 2008,41:1587), obtained polythiocarbonates.But due to the existence of oxygen-sulphur permutoid reaction, the polymkeric substance obtained contains carbonic ether, single, double and polythio carbonic ether link configuration.Darensbourg etc. use (Salen) CrCl complex compound to be catalyzer, be promotor catalysis dithiocarbonic anhydride and cyclohexene oxide copolymerization (Dalton Trans. with two (dihalotriphenylphosphoranes base) ammonium chloride, 2009,8891), synthesize polythiocarbonates, poly-single thiocarbonic ester that structure is clear and definite can not have been obtained equally.In above-mentioned catalytic reaction process, the generation of oxygen-sulphur permutoid reaction result in the cross-polymerization of some intermediate products, thus has multiple different thiocarbonic ester chain link to generate.So far there is not yet the report that catalysis epoxy monomer and the direct copolymerization of sulphur carbonoxide generate single thiocarbonic ester with asymmetric link configuration, also do not have regio-selective synthesis to gather the report of single thiocarbonic ester.Major cause is not applicable to the catalyzer of regioselectivity polyreaction, and effectively cannot suppress oxygen-sulphur permutoid reaction.
Applicant is in conjunction with the result of study of oxygen-sulphur permutoid reaction mechanism, on the basis of lot of experiments, adopt 3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex [(Salen) CrCl] catalyst system, successfully inhibit the oxygen-sulphur permutoid reaction in polymerization process, achieve the graded area selectivity copolymerization of direct Catalytic Oxygen nitric sulfid and epoxide, obtain poly-single sulfo-polycarbonate, thus form the present invention.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes deficiency of the prior art, provides a kind of containing asymmetric single thiocarbonic ester chain link and the preparation method of the regular poly-single thiocarbonic ester of chain structure.
For technical solution problem, solution of the present invention is:
The preparation method of the poly-single thiocarbonic ester providing a kind of chain structure regular, comprise the following steps: epoxide, carbon oxysulfide, catalyzer and promotor are added in dry autoclave, react 0.5 ~ 12.0 hour under autogenous pressure at 0 ~ 80 DEG C, then after purified drying step, obtain poly-single thiocarbonic ester; Described catalyzer is 3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex; Catalyst levels is 0.01% ~ 1.0% of reactant gross weight, and the mol ratio of carbon oxysulfide and epoxy compounds is 0.5 ~ 10, and the mol ratio of promotor and catalyzer is 1.0.The number-average molecular weight of obtained poly-single thiocarbonic ester is 1000 ~ 30000 g/mol, and molecular weight distribution is 1.1 ~ 1.8, and end group is that X(bears univalent anion), hydroxyl or sulfydryl; Catalytic activity is up to 650h
-1, single thiocarbonic ester chain link content>=99%, chain structure is regular, and namely head-tail the alternate degree of main chain is 80 ~ 99%.
Described catalyzer is 3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex, and its general formula is:
In formula, X is negative univalent anion, R
1and R
2for hydrogen atom, alkyl or aryl, tBu is the tertiary butyl;
Described promotor is any one in N-Methylimidazole, DMAP, two (dihalotriphenylphosphoranes base) ammonium chloride, triphenylphosphine, triphenylamine, trimethyl ammonium halide, ten alkylpolyoxyethylene, tetra-alkyl-phosphonium halide ammonium salt or tetra-alkyl-phosphonium halide phosphine.Trimethyl ammonium halide, ten alkylpolyoxyethylene, tetra-alkyl-phosphonium halide ammonium salt and tetra-alkyl-phosphonium halide phosphine are preferably Trimethyllaurylammonium bromide, decyl trimethyl ammonium chloride, Tetrabutyl amonium bromide and tetrabutyl phosphonium bromide phosphine respectively.
X in described general formula is halide anion, NO
3 -, CH
3cOO
-, CF
3cOO
-, (NO
2) PhO
-or (NO
2)
2phO
-in any one.Described R
1and R
2be the alkyl or aryl derivative that adjacent diamines replaces, be preferably quadrol, O-Phenylene Diamine or cyclohexanediamine.
In the present invention, described epoxy compounds is the asymmetric end ring oxygen compound of molecular structure, is preferably 1,2 epoxy prapane, C
5-C
20alpha-oxidation alkene, glycidyl allyl ether, 1,2-butylene oxide ring, Styrene oxide 98min. or alkyl replace in Styrene oxide 98min. one or more.
In the present invention, described temperature of reaction is preferably 20 ~ 60 DEG C, and the reaction times is preferably 1 ~ 10 h.
Relative to prior art, the present invention has technique effect useful significantly:
In synthetic method of the present invention, have employed 3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex is catalyzer, be that promotor forms bicomponent catalyst with organic basic compound, under bulk polymerization conditions, direct use epoxy compounds and the copolyreaction of sulphur carbonoxide obtain asymmetric poly-single thiocarbonic ester with high alternate degree and regioselectivity, and still belong to the first time report.Adopt ring-opening polymerization method can not obtain the asymmetric poly-single thiocarbonic ester of link configuration in prior art.
The catalyzer that the present invention adopts has very high catalytic efficiency, provides the method being different from ring-opening polymerization method controlledly synthesis and gathering single thiocarbonic ester.Polymerization process is simple, easy to operate, can by regulating reaction conditions accuracy controlling polymer architecture.
Poly-single thiocarbonic ester provided by the present invention has purposes widely, products therefrom has higher refractive index, and as COS-PO multipolymer, its refractive index is 1.63, be significantly higher than the refractive index of general polymerization thing, at special optical material as there being potential purposes in tackiness agent.
Accompanying drawing explanation
Fig. 1 is the infrared spectrum of COS/PO multipolymer.
Fig. 2 is COS/PO copolymerization macromole product
1h NMR spectrogram.
Fig. 3 is the crude product that COS/PO multipolymer contains by product
1h NMR spectrogram.
Fig. 4 is the crude product that COS/PO multipolymer contains by product
13c NMR spectrogram.
Fig. 5 is the crude product that COS/PO copolymerization contains the exchange of obvious oxygen sulphur
13c NMR spectrogram.
Embodiment
The invention provides the method for the poly-single thiocarbonic ester of a kind of high conversion synthesis, namely 3, under the effect of the two-pack catalyst system that 5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex and organic bases promotor are formed, catalysis sulphur carbonoxide and epoxide be " one kettle way " copolyreaction under bulk conditions, and the open loop of copolyreaction opposite end epoxide has regioselectivity; Catalytic activity is high, and the selectivity of catalysis is good, obtains the full alternating polymer of high molecular and the advantages such as adjustable molecular weight joint.Be described as follows:
By a certain percentage epoxide, carbon oxysulfide are added in dry autoclave and mix, under the catalysis of catalyzer or promotor, react 0.5 ~ 12.0 hour under autogenous pressure at 0 ~ 80 DEG C, then obtain after purified drying step.
3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complexes [(Salen) CrX] of the present invention are homogeneous catalysts, and be dissolvable in water in monomer during reaction, its general formula is:
Wherein X is univalent anion, is preferably halide anion, NO
3 -, CH
3cOO
-, CF
3cOO
-, (NO
2) PhO
-(NO
2)
2phO
-deng.R
1and R
2for hydrogen atom, alkyl and heteroaryl structure, i.e. the alkyl or aryl derivative of adjacent diamines replacement, is preferably quadrol, O-Phenylene Diamine and cyclohexanediamine.
In copolymerization, the consumption of (Salen) of the present invention CrX catalyzer is 0.01% ~ 1.0% of added epoxide mole number, is preferably 0.05% ~ 0.5%.In preferred scope, catalyzed reaction can comparatively fast and carry out stably, and the productive rate of polymkeric substance is better.For (Salen) CrX catalyzer, promotor is used to be necessary to raising catalytic efficiency.Be quaternary ammonium salt, quaternary alkylphosphonium salt and organic bases with the promotor of (Salen) CrX catalyzer compatibility in the present invention, described promotor is any one in N-Methylimidazole, DMAP, two (dihalotriphenylphosphoranes base) ammonium chloride, triphenylphosphine, triphenylamine, trimethyl ammonium halide, ten alkylpolyoxyethylene, tetra-alkyl-phosphonium halide ammonium salt or tetra-alkyl-phosphonium halide phosphine.Trimethyl ammonium halide, ten alkylpolyoxyethylene, tetra-alkyl-phosphonium halide ammonium salt and tetra-alkyl-phosphonium halide phosphine are preferably Trimethyllaurylammonium bromide, decyl trimethyl ammonium chloride, Tetrabutyl amonium bromide and tetrabutyl phosphonium bromide phosphine respectively.The best results of catalyzed copolymerization when the molar ratio of catalyzer and promotor is 1.
The asymmetric end ring oxygen compound of the known molecular structure of epoxy compounds that the present invention uses, is selected from 1,2 epoxy prapane, C
5-C
20alpha-oxidation alkene, glycidyl allyl ether, 1,2-butylene oxide ring, Styrene oxide 98min. or alkyl replace in Styrene oxide 98min. one or more.
This reaction carries out under the autogenous pressure of reaction system, and because the liquefying-point of COS is higher, during reaction, the pressure of system is general not high, as when 30 DEG C, the pressure of reaction system is about 0.4MPa; The temperature of reacting in the synthetic method of poly-single thiocarbonic ester provided by the present invention is 0 ~ 80
oc, is preferably 20 ~ 60 DEG C, too low temperature causes that reaction conversion ratio is low, long reaction time and polymericular weight low; Too high polymerization temperature significantly can increase the content of cyclic side products in product, and cause polyethers chain link in polymkeric substance increase the enhancing with oxygen-sulphur permutoid reaction, cause that the content of single thiocarbonic ester chain link reduces, product structure is wayward thus.The selection of the temperature therefore in the present invention carries out preferred result based on after the considering of efficiency, cost and quality.Reaction times is 0.5 ~ 12 hour, is preferably 1 ~ 10h.
Use COS as sulphur source and above-mentioned epoxide direct copolymerization Cheng Judan thiocarbonic ester in the present invention, compared with the approach of ring-type thiocarbonic ester ring-opening polymerization, present method easy reaction, does not need solvent; The productive rate of polymkeric substance is high, and unreacted epoxy monomer is relative with COS easily separated.In product by (Salen) CrX system catalysis gained, single thiocarbonic ester chain link content >=99%.Embody very high catalytic activity and selectivity of product, cyclic side products per-cent in the crude product can be controlled within 10%, can be controlled in 1% and following under optimal conditions.Significantly, catalyst system significantly can suppress oxygen-sulphur permutoid reaction, thus ensures on product main chain only containing single thiocarbonic ester chain link.
Different thiocarbonic ester in cyclic side products content in above-mentioned gained crude product and kind, macromole product main chain and the kind of carbonic ether chain link and content by
1h NMR and
13c NMR method measures.Also main chain link kind can be qualitatively judged by infrared method.
In the present invention, the purifying of crude product can remove unreacted monomer by direct decompression method, and this is particularly suitable to the system low containing cyclic side products content.In the present invention, the purifying of crude product can also be completed by following steps: be dissolved in by crude product in the good solvent such as tetrahydrofuran (THF) or methylene dichloride, then in the non-solvent of product precipitate, after filtration or centrifugal after be drying to obtain final product again.Described non-solvent is water and alcohols or their mixture, and wherein alcohols is preferably methyl alcohol and ethanol.
When using (Salen) CrX catalyzer of homogeneous phase, polymerization activity generally represents with transformation frequency (TOF), the number of monomers namely in the unit time, unit metal atom transformed, catalytic activity scope 87 ~ 650 h of this catalyzer of the present invention
-1, change because of the change of reactant ratio, temperature of reaction, collocation initiator kind, Salen ligand structure, common field of activity is 200 ~ 350 h
-1.
By poly-single thiocarbonic ester that aforesaid method obtains, number-average molecular weight is 1000 ~ 30000 g/mol, and molecular weight distribution 1.1 ~ 1.8, molecular weight of copolymer is controlled.Number-average molecular weight and distribution thereof are by gel permeation chromatography, and being reference with monodisperse polystyrene, take tetrahydrofuran (THF) as solvent, measure at 40 DEG C.With optimal conditions, the predominant repeat unit in resulting polymers chain link is single thiocarbonic ester chain link, also likely produce two thiocarbonic ester chain link, carbonic ether chain link, polythioether or polyethers chain link, but shared ratio is very low, substantially negligible.This is because two-pack catalyst system significantly suppress the result of oxygen sulphur permutoid reaction, by the single thiocarbonic ester chain link in (Salen) CrX catalysis resulting polymers main chain can reach >=99%.
Another more significant advantage of the present invention is, when adopting (Salen) CrX catalyst COS and end ring oxide compound (as propylene oxide) copolymerization, regioselectivity polymerization can obtain asymmetric poly-single thiocarbonic ester, the tail-head alternate degree being embodied in main chain is 80 ~ 99%.This depends mainly on the characteristic of the single-minded coordination nucleation of the Metal Cr in sulphur atom and selected catalyzer and the methylene radical of the single-minded attack propylene oxide of sulphur negative ion.
The product obtained is synthesized to employing the inventive method and carries out structural analysis, find that poly-single thiocarbonic ester of the present invention is a kind of sulfur-containing polymer of novel structure, propylene oxide (the PO)/COS multipolymer for (Salen) CrX catalyst:
At the upper 1805cm of the FT-IR spectrogram (accompanying drawing 1) of propylene oxide (the PO)/COS copolymerization product of (Salen) CrX catalyst
-1and 1710cm
-1having there is absorption peak in two places, belongs to the carbonylic stretching vibration peak of by product ring-type list thiocarbonic ester and the carbonylic stretching vibration peak of single thiocarbonic ester chain link respectively.And at 1740 cm
-1with 1640 cm
-1there is not obvious peak type in two places, shows in product not containing carbonic ether chain link and dithiocarbonates chain link.At polymerisate
1on H NMR spectrogram, (accompanying drawing 2) has no polyethers, polythioether and other peaks corresponding to various thiocarbonic ester chain link, illustrates that products therefrom is alternating links structure.The peak position corresponding to each hydrogen atom on single thiocarbonic ester chain link and integral area are as shown in accompanying drawing 2 marks.Accompanying drawing 3 is hydrogen spectrums of polymerization gained crude product, and can see the hydrogen peak corresponding to by product ring-type list thiocarbonic ester from this figure, in crude product, by product and macromolecular ratio can by the area ratio gained at 5.16ppm and 4.84ppm two peak.At polymerisate
13on C NMR spectrogram there is not the carbon atom peak of polyethers, polythioether and other various thiocarbonic ester chain links in (accompanying drawing 4) yet, and to compose result consistent with hydrogen.In addition based on carbon spectrum result, the oxygen-sulphur permutoid reaction situation in polymerization process conveniently can be judged.Accompanying drawing 5 provides the product with obvious oxygen-sulphur permutoid reaction result
13on C NMR spectrogram, the peak of the upper carbonylic carbon atom of dithiocarbonates chain link (187.78 ppm), carbonic ether chain link (154.97ppm) and Cyclic Dithio carbonic ether (197.64ppm) can be observed, and the carbonyl carbon peak (172.63ppm) of by product ring-type list thiocarbonic ester.
Below in conjunction with specific embodiment, realization of the present invention is stated in detail.
In the present invention, the SalenCrX catalyzer of synthesized use has following structure, the catalyzer sequence number of different structure as shown in the formula shown in.
Embodiment 1
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 1a(of some quality is added successively as Fig. 1 in reactor) and promotor N-Methylimidazole (N-MeIm), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/10000.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL 1,2 epoxy prapanes and given mass are again 0.5/1).Then autoclave is closed, be placed in 30 DEG C of oil baths and react 0.5 h under autogenous pressure.Be cooled to room temperature after reaction terminates, take out yellow product.First removal of solvent under reduced pressure, use CH again
2cl
2dissolve crude product, be settled out polymkeric substance, obtain yellow product after vacuum-drying in methyl alcohol, weighting method calculates transformation efficiency, calculates each chain link content in polymkeric substance by nucleus magnetic hydrogen spectrum.Test result is in table 1.
Embodiment 2
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 2a(of some quality is added successively as Fig. 1 in reactor) and promotor DMAP (DMAP), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/10000.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL 1,2-butylene oxide rings and given mass are again 0.5/1).Then autoclave is closed, be placed in 30 DEG C of oil baths and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 3
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 3a(of some quality is added successively as Fig. 1 in reactor) and two (dihalotriphenylphosphoranes base) ammonium chloride ([PPN] Cl) of promotor, the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/2000.The COS(COS and the epoxy monomer mol ratio that add the positive amylene of 2.0 mL alpha-oxidation and given mass are again 1/1).Then autoclave is closed, be placed in 30 DEG C of oil baths and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 4
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 1b(of some quality is added successively as Fig. 1 in reactor) and promotor triphenylphosphine (P (Ph)
3), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/2000.The COS(COS and the epoxy monomer mol ratio that add the positive decene of 2.0 mL alpha-oxidation and given mass are again 1/1).Then autoclave is closed, be placed in 30 DEG C of oil baths and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 5
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 2b(of some quality is added successively as Fig. 1 in reactor) and promotor triphenylamine (N (Ph)
3), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/1000.The COS(COS and the epoxy monomer mol ratio that add positive ten pentaenes of 2.0 mL alpha-oxidation and given mass are again 2/1).Then autoclave is closed, be placed in 80 DEG C of oil baths and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 6
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 3b(of some quality is added successively as Fig. 1 in reactor) and promotor Trimethyllaurylammonium bromide (DTMeABr), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/1000.The COS(COS and the epoxy monomer mol ratio that add the positive icosa alkene of 2.0 mL alpha-oxidation and given mass are again 2/1).Then autoclave is closed, be placed in 80 DEG C of oil baths and react 12 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 7
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 1c(of some quality is added successively as Fig. 1 in reactor) and promotor decyl trimethyl ammonium chloride (DTMeACl), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/200.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL glycidyl allyl ethers and given mass are again 5/1).Then autoclave is closed, be placed in 80 DEG C of oil baths and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 8
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 2c(of some quality is added successively as Fig. 1 in reactor) and promotor Tetrabutyl amonium bromide (TBuABr), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/100.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL Styrene oxide 98min.s and given mass are again 10/1).Then autoclave is closed, be placed in 80 DEG C of oil baths and react 12 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 9
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 3c(of some quality is added successively as Fig. 1 in reactor) and promotor tetrabutyl phosphonium bromide phosphine (TBuPBr), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/100.The COS(COS and the epoxy monomer mol ratio that add the p-ethyl Styrene oxide 98min. of 2.0 mL and given mass are again 10/1).Then autoclave is closed, be placed in 80 DEG C of oil baths and react 12 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 10
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 1d(of some quality is added successively as Fig. 1 in reactor) and promotor N-Methylimidazole (N-MeIm), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/10000.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL 1,2 epoxy prapanes and given mass are again 2/1).Then autoclave is closed, be placed in 0 DEG C of oil bath and react 0.5 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 11
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 2d(of some quality is added successively as Fig. 1 in reactor) and promotor DMAP (DMAP), the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/200.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL 1,2 epoxy prapanes and given mass are again 5/1).Then autoclave is closed, be placed in 0 DEG C of oil bath and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 12
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 3d(of some quality is added successively as Fig. 1 in reactor) and two (dihalotriphenylphosphoranes base) ammonium chloride ([PPN] Cl) of promotor, the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/2000.The COS(COS and the epoxy monomer mol ratio that add 2.0 mL 1,2 epoxy prapanes and given mass are again 5/1).Then autoclave is closed, be placed in 0 DEG C of oil bath and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
Embodiment 13
First the autoclave of 10mL 2 hours at 110 DEG C are removed moisture and be cooled to room temperature in moisture eliminator before polyreaction.The SalenCrX catalyzer 3a(of some quality is added successively as Fig. 1 in reactor) and two (dihalotriphenylphosphoranes base) ammonium chloride ([PPN] Cl) of promotor, the two waits mole number.Catalyzer and the total mol ratio of epoxy monomer are 1/1000.Add 1.0 mL 1,2 epoxy prapanes and 1.0 mL 1,2-butylene oxide rings again, the COS(COS and the epoxy monomer mol ratio that pass into given mass are 5/1).Then autoclave is closed, be placed in 30 DEG C of oil baths and react 6 h under autogenous pressure.Other process are identical with embodiment 1.Test result is in table 1.
The test result of the polymerisate of table 2: embodiment 1-13
1salenCrX catalyst type;
2promotor kind.It is equal with catalyzer mole number that institute adds promotor.N-MeIm(N-Methylimidazole), DMAP(4-Dimethylamino pyridine), two (dihalotriphenylphosphoranes base) ammonium chloride of [PPN] Cl(), P (Ph)
3(triphenylphosphine), N (Ph
3) (triphenylamine), DTMeABr(Trimethyllaurylammonium bromide), DTMeACl(decyl trimethyl ammonium chloride), TBuABr(Tetrabutyl amonium bromide), TBuPBr(tetrabutyl phosphonium bromide phosphine);
3the mol ratio of epoxy monomer and catalyzer;
4the mol ratio of carbon oxysulfide and epoxy monomer;
5t-H (%): the per-cent of main chain shared by tail-header structure (Tail-Head) repeating unit;
6m
n: number-average molecular weight, by gel permeation chromatography;
7mWD: molecular weight distribution, by gel permeation chromatography;
8tOF: transformation frequency.Represent mole value of the epoxide that every mole metal center per hour transforms.Unit is h
-1.
From above result:
Embodiment 1 ~ 13 is results of all kinds of end ring oxide compound of (Salen) CrX catalyzer collocation promotor catalysis alternating copolymerization.Can find out that (SalenCr) X catalyst has very excellent selectivity and catalytic activity.At 0 ~ 80 DEG C, COS/PO is 0.5/1 ~ 10/1, all presents catalytic activity in reaction times 0.5h ~ 12h condition and range, and the transformation frequency (TOF) of catalyzer is also very high, the highlyest can reach 650h
-1; The poly-single thiocarbonic ester molecular weight obtained reaches 1500 ~ 26000 g/mol; Molecular weight distribution is 1.1 ~ 1.8; Not containing polyethers chain link in main chain, single thiocarbonic ester chain link ratio>=99%; Tail-header structure chain link ratio is 80 ~ 99%; The refractive index of polymkeric substance is 1.63.
The foregoing is only several embodiments of the present invention; should be understood that; for the person of ordinary skill of the art, many modification and improvement can also be made, allly not exceed modification described in claim or improve and all should be considered as protection scope of the present invention.
Claims (7)
1. a preparation method for poly-single thiocarbonic ester that chain structure is regular, is characterized in that, comprise the following steps:
Epoxide, carbon oxysulfide, catalyzer and promotor are added in dry autoclave, react 0.5 ~ 12.0 hour under autogenous pressure at 0 ~ 80 DEG C, then after purified drying step, obtain poly-single thiocarbonic ester; Described catalyzer is 3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex; Catalyst levels is 0.01% ~ 1.0% of added epoxy monomer total mole number, and the mol ratio of carbon oxysulfide and epoxide is 0.5 ~ 10, and the mol ratio of promotor and catalyzer is 1.0;
Described promotor is any one in N-Methylimidazole, DMAP, two (dihalotriphenylphosphoranes base) ammonium chloride, triphenylphosphine, triphenylamine, trimethyl ammonium halide, ten alkylpolyoxyethylene, tetra-alkyl-phosphonium halide ammonium salt or tetra-alkyl-phosphonium halide phosphine;
The number-average molecular weight of obtained poly-single thiocarbonic ester is 1000 ~ 30000g/mol, and molecular weight distribution is 1.1 ~ 1.8, and end group is X, hydroxyl or sulfydryl, and described X is negative univalent anion; Catalytic activity is up to 650h
-1, single thiocarbonic ester chain link content>=99%, and the head of main chain-tail alternate degree is 80 ~ 99%.
2. method according to claim 1, is characterized in that, described catalyzer is 3,5-di-tert-butyl salicylaldehyde imines Schiff's base chromium complex, and its general formula is:
In formula, X is negative univalent anion, R
1and R
2for hydrogen atom, alkyl or aryl, tBu is the tertiary butyl.
3. according to the method described in claim 1 or 2, it is characterized in that, described negative univalent anion is halide anion, NO
3 -, CH
3cOO
-, CF
3cOO
-, (NO
2) PhO
-or (NO
2)
2phO
-in any one.
4. method according to claim 2, is characterized in that, described R
1and R
2it is the alkyl or aryl derivative that adjacent diamines replaces.
5. method according to claim 2, is characterized in that, described R
1and R
2quadrol, O-Phenylene Diamine or cyclohexanediamine.
6. according to the method described in claim 1-2 or 4-5 any one, it is characterized in that, described epoxide is the asymmetric end ring oxygen compound of molecular structure.
7. according to the method described in claim 6, it is characterized in that, described epoxide is 1,2 epoxy prapane, C
5-C
20alpha-oxidation alkene, glycidyl allyl ether, 1,2-butylene oxide ring, Styrene oxide 98min. or alkyl replace in Styrene oxide 98min. one or more.
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| CN107602528A (en) * | 2017-09-25 | 2018-01-19 | 常熟理工学院 | A kind of method for preparing five-membered ring list sulfocarbonate |
| CN107629031A (en) * | 2017-09-25 | 2018-01-26 | 常熟理工学院 | A kind of method for preparing ring list sulfocarbonate |
| CN108559083B (en) * | 2018-04-26 | 2020-07-14 | 大连理工大学 | Preparation method of crystalline poly (monothiocarbonate) |
| CN109180937B (en) | 2018-10-31 | 2020-05-08 | 浙江大学 | Method for preparing aliphatic polythioether |
| CN110396196B (en) * | 2019-07-22 | 2020-10-16 | 浙江大学 | Crystalline polycarbonate and preparation method thereof |
| CN111763316B (en) * | 2019-11-28 | 2022-03-25 | 常熟理工学院 | Polythiocarbamate and preparation method thereof |
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