Monomers derived from perhalogeneted sultones and polymers derived therefrom

摘要

Sultone monomers of formula A-CXF-SO2Z (I) are new. In (I), A = R<1>R<2>N-S(O)2-(CF2)n- (i); Z = F, Cl, -OSi(CH3)3 or an ionic gp.; X = F, Cl, H or Rf; at least one of R<1> and R<2> is selected from non-perfluorinated polymerisable organic radials; R<1> or R<2> being a non-perfluorinated organic radical when it is not polymerisable; Rf = a perfluoroalkyl or perfluoroaryl radical and n = 1, 2 or 3 provided than n is pref. 1 or 2 when X = F.