| 摘要 |
The invention relates to an acid-doped, single-layer or multilayer polymer membrane comprising at least one layer A of a polymer blend comprising a) from 0.1 to 99.9% by weight of one or more polymers comprising recurring azole units of the formula 1A and/or 1B: where the radicals Ar, Ar<1 >and Ar<2 >are tetravalent, divalent or trivalent aromatic or heteroaromatic groups and the radicals X, which are identical within a repeating unit, are each an oxygen atom, a sulfur atom or an amino group bearing a hydrogen atom, a group having 1-20 carbon atoms, preferably a branched or unbranched alkyl or alkoxy group, or an aryl group as further radical, in admixture with b) from 99.9 to 0.1% by weight of a polysulfone comprising recurring units of the formula 2A, 2B, 2C, 2D, 2E, 2F and/or 2G and having no sulfonic acid groups: -O-R-SO2-R- (2A) -O-R-SO2-R-O-R- (2B) -O-R-SO2-R-O-R-R- (2C) -O-R-SO2-R-R-SO2-R- (2E) -O-R-SO2-R-R-SO2-R-O-R-SO2-] (2F) &Brketopenst;O-R-SO2-R&Brketclosest;&Brketopenst;SO2-R-R&Brketclosest; (2G), where the radicals R are identical or different and are each, independently of one another, 1,2-phenylene, 1,3-phenylene, 1,4-phenylene, 4,4'-biphenyl, a divalent radical of a heteroaromatic, a divalent radical of a C10-aromatic and/or a divalent radical of a C14-aromatic. Furthermore, a process for producing the doped polymer membrane, its use in fuel cells, in electrolysis, in capacitors, in battery systems and in electrochromic applications and also membrane electrode units comprising at least one polymer membrane according to the invention are described. |
