Patent ID: 7473714

Claim:
A proton exchange membrane which includes a polymer or co-polymer material selected from the group consisting of: where M 1 is a monomer having at least one phenyl group wherein the oxygen of the ether linkage of the pendent sulfone group is linked to said at least one phenyl group, M 2 is a monomer having either or both alkyl or aromatic groups, M 1 ″ is a monomer having either or both alkyl or aromatic groups, A is an ether or a throatier linkage, R 0-1 is a substituted or unsubstituted alkyl or aromatic group, X 0-1 is either a charged species (X 0 ) or is oxygen with a single positive charge cation, and y and n may be the same or different and are at least 10, and k is a number less than one.