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METHOD FOR THE PRODUCTION OF POLY (VINYL TRIFLUORACETATE) AND POLY (VINYL TRIFLUORACETATE / VINYL ESTER) COPOLYMERS IN SUPERCRITICAL CARBON DIOXIDE
METHOD FOR THE PRODUCTION OF POLY (VINYL TRIFLUORACETATE) AND POLY (VINYL TRIFLUORACETATE / VINYL ESTER) COPOLYMERS IN SUPERCRITICAL CARBON DIOXIDE
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机译:在超临界二氧化碳中生产聚(三氟乙烯乙酸酯)和聚(三氟乙烯乙酸酯/乙烯基酯)共聚物的方法
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摘要
A method for the production of poly(vinyl trifluoroacetate) and copolymers thereof with vinyl esters is described. Poly(vinyl trifluoroacetate) (PVTFA) is obtained in relatively high yield under mild conditions by using carbon dioxide under supercritical conditions as a solvent. Synthesis of syndiotactic PVTFA on a commercial scale without the use of environmentally-harmful solvents is made possible by the invention, which provides a convenient route to syndiotactic polyvinyl alcohol.
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