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PROCEDURES FOR THE MANUFACTURE OF POLY(VINYL TRIFLUORACETATE) AND POLY(VINYL TRIFLUORACETATE/VINYL ESTER) COPOLYMERS IN OVERCRITICAL COAL ENDIOXIDE
PROCEDURES FOR THE MANUFACTURE OF POLY(VINYL TRIFLUORACETATE) AND POLY(VINYL TRIFLUORACETATE/VINYL ESTER) COPOLYMERS IN OVERCRITICAL COAL ENDIOXIDE
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机译:在超临界煤内氧化物中制备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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