Patent ID: 7094490
Filing Date: 2006-08-22
Classification: C08G,C08J,C08L,H01B,H01M,Y02E

Abstract:
1. A polymer electrolyte membrane comprising an ion conducting block copolymer comprising non-ionic and ionic regions having the formula [(A [(S A and C are phenyl, napthyl, terphenyl, aryl nitrile, substituted aryl nitrile. organopolysiloxane or Ar B and D are —O—Ar and Ar 5 and Ar 6 are aromatic groups or substituted aromatic groups and wherein each B and D can be the same or different; S is an ion conducting group selected from the group —SO n is an integer between 1 and 100; o is an integer between 1 and 100; a and b are integers each between 1 and n, where a indicates the number of different A and b the number of different B present in the non-ionic polymer (A c and d are integers between 1 and o, where c indicates the number of different C and d the number of different D present in the ionic polymer (S x and y are respectively the percentage of C and D which contain S, wherein at least one of x or y is greater than 0%: z is o divided by the sum of n and o and has a range from 0.001 to 1.0; j is an integer between 1 and 200 ; L and wherein when C is Ar