Patent ID: 7285325
Filing Date: 2007-10-23
Classification: B01D,C08J,H01M,Y02E,Y10T

Abstract:
1. 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:  wherein the radicals Ar, Ar 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 protonated sulfonic acid groups —SO3H or no protonable sulfonic acid salt groups of the formula —SO wherein M wherein the radicals R are identical or different and are each, independently of one another are 1,2-phenylene, 1,3-phenylene, 1,4-phenylene, 4,4′-biphenyl, a divalent radical of a heteroaromatic, a divalent radical of a C wherein the polymer(s) comprising recurring azole units of the formula 1A and/or 1B are acid doped with a Lewis or Brønsted acid.