Patent ID: 8008406
Filing Date: 2011-08-30
Classification: C08G,C08J,C08L,H01M,Y02E,Y02P

Abstract:
1. A fuel cell membrane comprising: at least one sulfonated aromatic polyether copolymer comprising a poly-arylen-ether-ketone (PEK) moiety or sulfonated derivatives thereof; said copolymer having the following formula (1): wherein Ar 1 has formula, wherein X is Spiro-bis-indanile (SBI) (b) or 4,4′-(hexafluoroisopropylidene) diphenol (BPAF) (c) having formulas: and wherein Y is H or SO 3 H, and Ar 2 has formula wherein W is CO or SO 2 , and Y is H or SO 3 H; wherein Z is OH or Cl; and wherein at least one between Ar