| 摘要 |
The present invention provides for a composition and a process for forming the composition. The composition comprises an organic polymer and 0.5-40 % by weight of the composition of a siloxane, the organic polymer having a fluorinated backbone and 3-20 mol-% of pendant groups represented by the formula (I): -O>p<-[CF(R>f<?1>)CF-Om]n-CF2CF2SO3X; wherein Rf is F or a perfluoroalkyl radical having 1-10 carbon atoms either unsubstituted or substituted by one or more ether oxygen atoms, m=0 or 1, n=0 to 3, p=0 or 1, and X is H or an alkali metal; the siloxane comprising two or more groups which need not be the same represented by the formula (II): -OaSi(OH)b-aR<1>3-bR<2>Rf<2>SO3; wherein a=1; 1 to b, b=1 to 3, R<1> is a non-hydrolyzable group independently selected from the group consisting of alkyl, cycloalkyl, aryl and aralkyl, X is is an alkali metal or hydrogen, R<2> is a bidentate alkylene radical either unsubstituted or substituted by at least one ether oxygen atom with the proviso that R<2> has at least two carbon atoms linearly disposed between Si and Rf<2>, and Rf<2> is a perfluoroalkylene ether radical either unsubstituted or substituted by at least one ether oxygen atom.
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