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PROCESS FOR PREPARING POLY(VINYL TRIFLUOROACETATE) AND POLY(VINYL TRIFLUOROACETATE/VINYL ESTER) COPOLYMERS IN SUPERCRITICAL CO2.
PROCESS FOR PREPARING POLY(VINYL TRIFLUOROACETATE) AND POLY(VINYL TRIFLUOROACETATE/VINYL ESTER) COPOLYMERS IN SUPERCRITICAL CO2.
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机译:在超临界CO2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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