首页>
外国专利>
Method for preparing poly(vinyl trifluoroacetate) and poly(vinyl trifluoroacetate/ vinyl ester)
Method for preparing poly(vinyl trifluoroacetate) and poly(vinyl trifluoroacetate/ vinyl ester)
展开▼
机译:聚(三氟乙酸乙烯酯)和聚(三氟乙酸乙烯酯/乙烯基酯)的制备方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for the production of poly(vinyl trifluoroacetate) and copolymers thereof with vinyl esters is described. Poly(vinyl trifiuoroacetate) (PVTFA) is obtained in essentially quantitative yield under mild conditions by using non-chlorofluorocarbon solvents comprising siloxanes or perfluorinated fluids. Hexamethyl disiloxane is a particularly useful example of such solvents. 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 commercial route to syndiotactic polyvinyl alcohol.
展开▼