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CN104910364B - Linear comb makrolon and preparation method thereof - Google Patents

Linear comb makrolon and preparation method thereof Download PDF

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Publication number
CN104910364B
CN104910364B CN201510250019.6A CN201510250019A CN104910364B CN 104910364 B CN104910364 B CN 104910364B CN 201510250019 A CN201510250019 A CN 201510250019A CN 104910364 B CN104910364 B CN 104910364B
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linear
makrolon
hydroxylating
molecular weight
average molecular
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CN104910364A (en
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李杨
任莹莹
魏志勇
冷雪菲
吴桐
王艳色
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Dalian University of Technology
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Abstract

The invention provides class Linear comb makrolon and preparation method thereof, belong to synthesis of polymer material and preparing technical field.The polymer has following structure:The number-average molecular weight of Linear comb makrolon is 1 × 104- 50 × 104, the single armed number-average molecular weight of makrolon is 0.1 × 104- 3 × 104;Linear molecule initiator is that the hydroxyl quantity in the linear liquid polymers of hydroxylating, linear molecule initiator is 8-60, and the number-average molecular weight of linear molecule initiator is 0.1 × 104- 1 × 104.By initiator of the linear liquid polymers of polyfunctional group hydroxylating, organic non-metal alkali be catalyst, the characteristics of high cladodification makrolon prepared by cyclic carbonate ester ring-opening polymerisation has HMW, narrow ditribution, no metal impurities residual;HMW is effectively improved physical and mechanical properties;High branched structure effectively improves processing characteristics.

Description

Linear comb makrolon and preparation method thereof
Technical field
The invention belongs to synthesis of polymer material and preparing technical field, the biodegradable poly- carbon of a class is related specifically to Acid esters material, it is characterised in that HMW, high cladodification Linear comb makrolon and preparation method thereof, the present invention prepared by Makrolon has excellent physical and mechanical properties and excellent processing characteristics.
Background technology
Fatty poly-ester carbonate is finally decomposed to CO due to that can degrade in the presence of water or in vivo2And water, Can be used as degradable material, and combine its low toxicity, good biocompatibility the advantages of, medically can be used as surgical material, Bone fixator and pharmaceutical carrier etc..But up to the present, for the preparation of fatty poly-ester carbonate, performance and application still Await further research and development.
Fatty poly-ester carbonate has three kinds of preparation approachs:(1) contracting of dihydric alcohol and carbonic ester or dihydric alcohol and chloro-formate It is poly-;(2)CO2With the copolymerization of epoxide in the presence of an organometallic catalyst, compare typically diethyl zinc system and urge Agent and rare earth catalyst;(3) ring-opening polymerisation of cyclic carbonate ester.Due to ring-opening polymerization mild condition, polymer architecture holds Easy to control, obtained polymerizate is pure and causes the growing interest of people, and can be smaller by using toxicity and be easy to The catalyst of removing is catalyzed, the need for resulting polymerizate can meet medical science and grocery trade, so as in recent years The study hotspot come.
The content of the invention
It is an object of the invention to provide a class Linear comb makrolon, this kind of Linear comb makrolon has branches of tall trees The characteristics of change, HMW, narrow ditribution, while have excellent physical and mechanical properties and splendid processing characteristics, be a class without Biomaterial for medical purpose malicious, degradable, with high biological security.It is another object of the present invention to provide one kind is above-mentioned The simple efficient preparation method of Linear comb makrolon.The present invention's is technically characterized in that with the linear liquid polymers of hydroxylating For polyfunctional group linear molecule initiator, prepared Linear comb makrolon is without metal residual.
One class Linear comb makrolon, it is characterised in that the polymer has following structure:Linear comb makrolon Number-average molecular weight be 1 × 104- 50 × 104, preferably 2 × 104- 30 × 104;The single armed number-average molecular weight of makrolon is 0.1×104- 3 × 104, preferably 0.2 × 104- 2 × 104;Linear molecule initiator is the linear liquid polymeric of hydroxylating Hydroxyl quantity in thing, linear molecule initiator is 8-60, preferably 12-40;The number of linear molecule initiator is divided equally Son amount is 0.1 × 104- 1 × 104, preferably 0.2 × 104- 0.8 × 104
The preparation method of one class Linear comb makrolon, it is characterised in that:Under normal pressure and inert gas shielding, inertia Gas is selected from nitrogen, argon gas, according to the size of molecular weight of product, by catalyst organic non-metal alkali, monomer cyclic carbonate ester, organic Solvent, the linear liquid polymers of linear molecule initiator hydroxylating are added sequentially in the reactor with stirring, are configured to Monomer cyclic carbonate ester molar concentration is 0.5-2M solution, opens and stirs, and the mol ratio of monomer cyclic carbonate ester and hydroxyl is 8- 250, the mol ratio of organic non-metal catalyst and hydroxyl is 0.1-5, preferably 0.5-2;Polymerization reactor control is in 0.25- 15h, polymeric reaction temperature is controlled at 0-50 DEG C, terminating reaction after reaction terminates, and the mol ratio of terminator and hydroxyl is 2- 5, terminator is benzoic acid, polymer solution is post-processed, product drying, finally gives Linear comb makrolon.This The preparation method of the involved class Linear comb makrolon of invention is compared with the synthetic method for the makrolon reported, originally Matter difference is that initiator used in the present invention is the linear liquid polymers of polyhydroxy.
Monomer cyclic carbonate ester involved in the present invention is selected from TMC (TMC), the methylene of 2,2- dimethyl three One or more of mixtures in basic ring carbonic ester (DTC).Organic solvent involved in the present invention is selected from aromatic hydrocarbons, alkyl halide The one or more of mixtures of hydrocarbon, wherein aromatic hydrocarbons in benzene, toluene, ethylbenzene, dimethylbenzene, chlorobenzene, preferably toluene;Alkyl halide One or more of mixing of the hydrocarbon in chloroform, dichloromethane, chloroform, bromoethane, iodomethane, 1,2- dichloroethanes Thing, preferably dichloromethane.Catalyst involved in the present invention is selected from any organic non-metal alkali disclosed in prior art, wherein Including one or more of mixtures in following organic non-metal alkali:Guanidine catalyst, amidine class catalyst, the catalysis of phosphine nitrile Agent, Thiourea catalyst, pyridines catalyst, N-heterocyclic carbine class catalyst, phosphine compound catalyst, preferably are selected from guanidine catalysis Agent, amidine class catalyst.Guanidine catalyst is selected from the azabicyclics of 1,5,7- tri- [4.4.0] decyl- 5- alkene (TBD), N-methyl -1,5,7- Three azabicyclics [4.4.0] decyl- 5- alkene (MTBD);Amidine class catalyst is selected from the carbon -7- alkene of 1,8- diazabicylos [5.4.0] 11 (DBU);Thiourea catalyst is selected from 1- (3,5- pairs-trifluoromethyl-phenyl) -3- cyclohexyl thiocarbamides;Pyridines catalyst is selected from 4-dimethylaminopyridine (DMAP), 4- pyrollidinopyridines (PPY);N-heterocyclic carbine class catalyst be selected from 1,3- it is double (2,4, 6- trimethylphenyls) imidazoles -2- subunits, 1,3- diisopropyl -4,5- dimethyl-imidazol -2- subunits, double (the 2,6- diisopropyls of 1,3- Base phenyl)-imidazoles -2- subunits;Phosphine compound catalyst is selected from tri-n-butyl phosphine, tri-butyl phosphine, dimethylphenylphosphine, methyl two Phenylphosphine, triphenylphosphine.
Linear molecule initiator involved in the present invention is selected from the linear liquid of any polyhydroxy disclosed in prior art Polymer, including the mixed of the linear liquid polymers of one or more of polyhydroxy in the linear liquid polymers of following polyhydroxy Compound:The linear liquid polybutadiene of hydroxylating, the linear liquid polyisoprene of hydroxylating, the linear liquid butadiene of hydroxylating/different Pentadiene copolymer, preferably is selected from the linear liquid polybutadiene of hydroxylating, the linear liquid polyisoprene of hydroxylating.Linear molecule The preparation method of the linear liquid polymers of initiator hydroxylating, it is characterised in that including three below part:Linear liquid polymeric The preparation of thing, the preparation of the linear liquid polymers of epoxidation, the preparation of the linear liquid polymers of hydroxylating;Wherein liquid polymers With the preparation method of epoxidized liquid polymer referring to Chinese invention patent ZL200710157403.7 (butadiene/isoprene/ Diolefin star comb-shaped and preparation method thereof) and ZL200810190932.1 (star-shaped comb type butadiene/styrene block Copolymer and preparation method thereof) disclosed in preparation method, compared with the preparation method of star liquid polymers, linear liquid The preparation method of polymer, which is a difference in that after the completion of monomer total overall reaction, no longer to be needed to add coupling agent (such as:SiCl4) enter Row coupling reaction, and the preparation method of the linear liquid polymers of epoxidation and the preparation method of epoxidation star liquid polymers are complete It is exactly the same;The preparation method of the linear liquid polymers of hydroxylating, it is characterised in that:By solvents tetrahydrofurane, the linear liquid of epoxidation Body polymer is added in reactor, is stirred at room temperature or 25 DEG C -30 DEG C, and the trifluoromethanesulfonic acid aqueous solution is added dropwise, and is added dropwise After the completion of react again 3-4 hours, add chloroform terminating reaction;Glue is washed till after neutrality with deionized water, is distilled off Most of solvent, then residual solvent is further removed with cold-trap vacuum deep cooling and THF azeotropic, obtain transparent glue.
Now illustrate the preparation method of linear molecule initiator of the present invention by taking the linear liquid polybutadiene of hydroxylating as an example, but The linear liquid polybutadiene of hydroxylating is not limited to, the preparation method of other linear molecule initiators is identical with following methods. The preparation method of the linear liquid polybutadiene of hydroxylating, it is characterised in that including three below part:Linear liquid polybutadiene Preparation, the preparation of the linear liquid polybutadiene of epoxidation, the preparation of the linear liquid polybutadiene of hydroxylating;The wherein poly- fourth of liquid The preparation method of diene and epoxidized liquid polybutadiene is referring to Chinese invention patent ZL200710157403.7 (butadiene/different Pentadiene/diolefin star comb-shaped and preparation method thereof) and ZL200810190932.1 (star-shaped comb type butadiene/benzene Ethylene block copolymer and preparation method thereof) disclosed in preparation method, the preparation method phase with star liquid polybutadiene Than the preparation method of linear liquid polybutadiene is a difference in that after the completion of butadiene total overall reaction no longer to need to add and is coupled Agent is (such as:SiCl4) coupling reaction is carried out, and the preparation method of the linear liquid polybutadiene of epoxidation is gathered with epoxidation star liquid The preparation method of butadiene is identical;The preparation method of the linear liquid polybutadiene of hydroxylating, it is characterised in that:40g is molten Agent tetrahydrofuran (THF), the linear liquid polybutadiene of 5g epoxidations (epoxide number is 19.73%) are added in reactor, in room Stirred at temperature or 25 DEG C -30 DEG C, the trifluoromethanesulfonic acid aqueous solution (TfOH is added dropwise:2.8mL;H2O:10.26g), it is added dropwise to complete React again afterwards 3.5 hours, add 150mL chloroform terminating reactions;Glue is washed till after neutrality with deionized water, is distilled off Most of solvent, then residual solvent is further removed with cold-trap vacuum deep cooling and THF azeotropic, obtain transparent glue.
The effect and benefit of the present invention is that:Prepared using the linear liquid polymers of linear molecule initiator hydroxylating Biodegradable material makrolon, technological process is simply efficient, and cost is relatively low;Initiator is free of metal, and polymer is without metal Impurity is remained;HMW, narrow ditribution are effectively improved the physical and mechanical properties of makrolon;Meanwhile, high branched structure has Improve HMW, the processing characteristics of narrow ditribution makrolon to effect.
Embodiment
The present invention, but the not scope of limitation the claims in the present invention protection are further illustrated with reference to embodiment.Hydroxyl The measure of base polybutadiene hydroxylating degree (E):Hydroxylated polymer hydroxylating degree is used1H-NMR methods are tested, and calculate publicity It is as follows:
Wherein:Hydroxyl peak position is 3.4ppm and 3.6ppm;Polybutadiene different structure peak position:1,2 structures are 4.9ppm, suitable anti-1,4 structure are 5.4ppm.
Embodiment 1
The preparation of the linear liquid polybutadiene of hydroxylating:Using classical anionic polymerisation process, by solvent of hexamethylene, N-BuLi is that initiator, butadiene are monomer, prepares linear liquid polybutadiene, the number-average molecular weight of polybutadiene is 6700 (using gel permeation chromatograph GPC tests), molecular weight distributing index (abbreviation PDI, similarly hereinafter) is 1.11.In 250mL reactors The middle toluene solution 150mL added dissolved with aforesaid liquid polybutadiene 3.3g, opens stirring, is added when temperature rises to 40 DEG C 1.5g 98% formic acid, drips off 2.8g 30% hydrogen peroxide in 30min, reacts 2 hours;During with deionized water, glue is washed till Property after, most of solvent is distilled off, transparent glue is obtained, epoxy content is 19.34% (using nuclear magnetic resonance method NMR test). The linear liquid polybutadiene of 3.2g epoxidations is taken, 82.1g tetrahydrofurans are stirred in reactor, and 2.6g trifluoromethanesulfonic acids are dissolved in It is added drop-wise in reactor, reacts 3.5 hours in 3.1g deionized water, adds 150mL chloroform terminating reactions.Use deionization Glue is washed till after neutrality by water, most of solvent is distilled off, then with after cold-trap vacuum deep cooling and THF azeotropic to constant weight, obtain Transparent glue;Hydroxylating degree is 19.34%, and hydroxyl value is 48.0, and number-average molecular weight is 7000 (GPC tests), and PDI is 1.13.
Embodiment 2
The preparation of Linear comb makrolon:Normal temperature and pressure, under inert nitrogen gas protection, by 1,5,7- tri- azabicyclic The hydroxyl synthesized in [4.4.0] decyl- 5- alkene (TBD) 0.04g (being 1 metering by the mol ratio of TBD and hydroxyl), 0.04g embodiments 1 Change linear liquid polybutadiene initiator, 1.0g TMC monomers to be added in 14ml dichloromethane, monomer three The mol ratio of methylene cyclic carbonate ester and hydroxyl is 35, and single armed number-average molecular weight is 3200, reacts 30min.Add terminator benzene Polymer glue is post-processed after formic acid (being 3 meterings by the mol ratio of terminator and hydroxyl), reaction terminating, drying is laggard Row analysis test, obtains final products Linear comb makrolon.Product is through gpc analysis weight average molecular weight 4.8 × 104, number is Molecular weight 3.2 × 104, PDI is 1.48, and glass transition temperature is -19.5 DEG C.
Embodiment 3
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer Sanya The mol ratio of methyl cyclic carbonate ester and hydroxyl is 10, and single armed number-average molecular weight is 1000, TBD and the mol ratio of hydroxyl is 0.2, instead 15min is answered, product Linear comb makrolon is through gpc analysis weight average molecular weight 2.3 × 104, number-average molecular weight 1.8 × 104, PDI For 1.28, glass transition temperature is -19.8 DEG C.
Embodiment 4
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer Sanya The mol ratio of methyl cyclic carbonate ester and hydroxyl is 100, and single armed number-average molecular weight is 6500, TBD and the mol ratio of hydroxyl is 1, production Thing Linear comb makrolon is through gpc analysis weight average molecular weight 19.0 × 104, number-average molecular weight 12.6 × 104, PDI is 1.51, Glass transition temperature is -18.7 DEG C.
Embodiment 5
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer Sanya The mol ratio of methyl cyclic carbonate ester and hydroxyl is 150, and single armed number-average molecular weight is 10000, TBD and the mol ratio of hydroxyl is 1, production Thing Linear comb makrolon is through gpc analysis weight average molecular weight 30.9 × 104, number-average molecular weight 19.8 × 104, PDI is 1.56, Glass transition temperature is -18.5 DEG C.
Embodiment 6
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer Sanya The mol ratio of methyl cyclic carbonate ester and hydroxyl is 200, and single armed number-average molecular weight is 15200, TBD and the mol ratio of hydroxyl is 1, production Thing Linear comb makrolon is through gpc analysis weight average molecular weight 43.1 × 104, number-average molecular weight 28.9 × 104, PDI is 1.49, Glass transition temperature is -18.0 DEG C.
Embodiment 7
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer Sanya The mol ratio of methyl cyclic carbonate ester and hydroxyl is 250, and single armed number-average molecular weight is 19800, TBD and the mol ratio of hydroxyl is 5, production Thing Linear comb makrolon is through gpc analysis weight average molecular weight 54.2 × 104, number-average molecular weight 35.2 × 104, PDI is 1.54, Glass transition temperature is -17.9 DEG C.
Embodiment 8
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer Sanya The mol ratio of methyl cyclic carbonate ester and hydroxyl is 50, and single armed number-average molecular weight is 2100, TBD and the mol ratio of hydroxyl is 0.5, is had Machine solvent is toluene, and product Linear comb makrolon is through gpc analysis weight average molecular weight 3.9 × 104, number-average molecular weight 3.0 × 104, PDI is 1.30, and glass transition temperature is -19.7 DEG C.
Embodiment 9
The preparation of Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are monomer 2,2- The mol ratio of dimethyltrimethylene cyclic carbonate ester and hydroxyl is 50, and single armed number-average molecular weight is mole of 3000, TBD and hydroxyl Than for 2, product Linear comb makrolon is through gpc analysis weight average molecular weight 6.0 × 104, number-average molecular weight 4.2 × 104, PDI is 1.42, glass transition temperature is -19.1 DEG C.
Embodiment 10
The preparation of Linear comb makrolon:Normal temperature and pressure, under inert nitrogen gas protection, by 1,8- diazabicylos The hydroxyl synthesized in [5.4.0] 11 carbon -7- alkene (DBU) 0.09g (being 2 meterings by the mol ratio of DBU and hydroxyl), embodiment 1 Change linear liquid polybutadiene initiator 0.04g, TMC monomer 1.0g to be added in 7ml dichloromethane, it is single The mol ratio of body TMC and hydroxyl is 35, and single armed number-average molecular weight is 2300, reacts 8h.Add terminator benzene Polymer solution is post-processed after formic acid (being 3 meterings by the mol ratio of terminator and hydroxyl), reaction terminating, drying is laggard Row analysis test, obtains final products Linear comb makrolon.Product Linear comb makrolon is through gpc analysis Weight-average molecular Amount 3.0 × 104, number-average molecular weight 2.6 × 104, PDI is 1.14, and glass transition temperature is -19.6 DEG C.
Embodiment 11
The preparation of Linear comb makrolon:Normal temperature and pressure, under inert nitrogen gas protection, by N-methyl -1,5,7- tri- Synthesized in azabicyclic [4.4.0] decyl- 5- alkene (MTBD) 0.09g (being 2 meterings by the mol ratio of MTBD and hydroxyl), embodiment 1 The linear liquid polybutadiene initiator 0.04g of hydroxylating, TMC monomer 1.0g be added to 7ml dichloromethane In, the mol ratio of monomer TMC and hydroxyl is 35, and single armed number-average molecular weight is 1300, reacts 15h.Add eventually Polymer solution is post-processed after only agent benzoic acid (being 3 meterings by the mol ratio of terminator and hydroxyl), reaction terminating, it is dry Analysis test is carried out after dry, final products Linear comb makrolon is obtained.Product Linear comb makrolon is through gpc analysis weight Average molecular weight 2.3 × 104, number-average molecular weight 1.8 × 104, PDI is 1.24, and glass transition temperature is -19.7 DEG C.
Embodiment 12
The preparation of the linear liquid polyisoprene of hydroxylating:Preparation method be the same as Example 1, hydroxyl value is 28.59, and number is divided equally Son amount is 6300 (GPC tests), and PDI is 1.21.Using the linear liquid polyisoprene of hydroxylating liquid manufactured in the present embodiment as Initiator, prepares Linear comb makrolon:Test recipe and preparation method be the same as Example 2, difference are the methylene of monomer three The mol ratio of basic ring carbonic ester and hydroxyl is 100, and single armed number-average molecular weight is 6000, TBD and the mol ratio of hydroxyl is 0.5, production Thing Linear comb makrolon is through gpc analysis weight average molecular weight 10.4 × 104, number-average molecular weight 7.3 × 104, PDI is 1.42, glass Glass transition temperature is -18.4 DEG C.
Embodiment 13
The preparation of the linear liquid polybutadiene of hydroxylating liquid:Preparation method be the same as Example 1, hydroxyl value is 12.31.With this The linear liquid polybutadiene of hydroxylating liquid prepared by embodiment is initiator, prepares Linear comb makrolon:Test recipe With preparation method be the same as Example 2, difference is monomer 2, and the mol ratio of 2- dimethyltrimethylenes cyclic carbonate ester and hydroxyl is 50, single armed number-average molecular weight is 4800, TBD and the mol ratio of hydroxyl is 0.5, and product Linear comb makrolon is through gpc analysis Weight average molecular weight 4.1 × 104, number-average molecular weight 3.7 × 104, PDI is 1.11, and glass transition temperature is -18.9 DEG C.
Embodiment 14
The preparation of the linear liquid polybutadiene of hydroxylating liquid:Preparation method be the same as Example 1, hydroxyl value is 56.25.With this The linear liquid polybutadiene of hydroxylating liquid prepared by embodiment is initiator, prepares Linear comb makrolon:Test recipe With preparation method be the same as Example 2, difference is that the mol ratio of monomer TMC and hydroxyl is 100, single armed number Average molecular weight is 6800, TBD and the mol ratio of hydroxyl is 0.5, and product Linear comb makrolon is through gpc analysis weight average molecular weight 31.0×104, number-average molecular weight 21.7 × 104, PDI is 1.43, and glass transition temperature is -18.0 DEG C.

Claims (3)

1. a class Linear comb makrolon, it is characterised in that the polymer has following structure:Linear comb makrolon Number-average molecular weight is 1 × 104-50×104, the single armed number-average molecular weight of makrolon is 0.1 × 104-3×104;Linear big point Sub- initiator is that the hydroxyl quantity in the linear liquid polymers of hydroxylating, linear molecule initiator is 8-60, linear molecule The number-average molecular weight of initiator is 0.1 × 104-1×104;Wherein the linear liquid polymers of hydroxylating is selected from the linear liquid of hydroxylating One kind in the linear liquid butadiene/isoprene copolymer of the linear liquid polyisoprene of polybutadiene, hydroxylating, hydroxylating Or two or more mixing;
The preparation method of a described class Linear comb makrolon, under normal pressure and inert gas shielding, according to Linear comb The size of polycarbonate molecular weight, catalyst organic non-metal alkali, monomer cyclic carbonate ester, organic solvent, linear molecule are drawn The hair linear liquid polymers of agent hydroxylating is added sequentially in the reactor with stirring, is configured to monomer cyclic carbonate ester mole dense Spend the solution for 0.5-2M, stir, the mol ratio of monomer cyclic carbonate ester and hydroxyl is 8-250, catalyst organic non-metal alkali with The mol ratio of hydroxyl is 0.1-5, and polymerization reactor control is controlled at 0-50 DEG C in 0.25-15h, polymeric reaction temperature, when reaction knot Terminating reaction after beam;The mol ratio of terminator and hydroxyl is 2-5, and terminator is benzoic acid, polymer solution is post-processed, Product drying, finally gives Linear comb makrolon;Wherein catalyst organic non-metal alkali is selected from guanidine catalyst, amidine class and urged In agent, phosphine nitrile catalyst, Thiourea catalyst, pyridines catalyst, N-heterocyclic carbine class catalyst, phosphine compound catalyst One or more kinds of mixing;The linear liquid polymers of linear molecule initiator hydroxylating is poly- selected from the linear liquid of hydroxylating One kind in the linear liquid butadiene/isoprene copolymer of the linear liquid polyisoprene of butadiene, hydroxylating, hydroxylating or Two or more mixing;Organic solvent is selected from the mixing of one or both of aromatic hydrocarbons, halogenated alkane;
The one kind of described monomer cyclic carbonate ester in TMC, DTC Or two kinds of mixing;
It is mixed above that described organic solvent aromatic hydrocarbons is selected from one or both of benzene, toluene, ethylbenzene, dimethylbenzene, chlorobenzene;It is described Organic solvent halogenated alkane in chloroform, dichloromethane, chloroform, bromoethane, iodomethane, 1,2- dichloroethanes one Plant or two or more mixing.
2. Linear comb makrolon according to claim 1, it is characterised in that described Linear comb makrolon Number-average molecular weight is 2 × 104-30×104, the single armed number-average molecular weight of makrolon is 0.2 × 104-2×104
3. Linear comb makrolon according to claim 2, it is characterised in that described linear molecule initiator Number-average molecular weight is 0.2 × 104-0.8×104, the hydroxyl quantity in linear molecule initiator is 12-40.
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