申请人:E. I. Du Pont de Nemours and Company
公开号:US05260492A1
公开(公告)日:1993-11-09
Disclosed herein are novel monomers of the formula CF.sub.2 .dbd.CF(CF.sub.2).sub.n CH.sub.2 OCF.dbd.CF.sub.2, wherein n is 1, 2 or 3, and novel intermediates of the formula CF.sub.2 ClCFCl(CF.sub.2).sub.n CH.sub.2 OCF.dbd.CF.sub.2 wherein n is 1, 2 or 3. Also disclosed is a fluoropolymer containing cyclic units when the monomer wherein n is 1 is free radically polymerized. The polymer is particularly useful in for coatings and encapsulants.
本文揭示了一种新型单体的化学式CF.sub.2 .dbd.CF(CF.sub.2).sub.n CH.sub.2 OCF.dbd.CF.sub.2,其中n为1、2或3,以及一种新型中间体的化学式CF.sub.2 ClCFCl(CF.sub.2).sub.n CH.sub.2 OCF.dbd.CF.sub.2,其中n为1、2或3。当n为1的单体自由基聚合时,揭示了含有环状单元的氟聚合物。该聚合物在涂料和封装剂方面特别有用。