Patent ID: 7108958

Claim:
A polymer comprising recurring monomers having a formula selected from the group consisting of: where: each of R 1 and R 2 is individually selected from the group consisting of functional moieties of aliphatic diols, heterocyclic diols, bisphenol A, bisphenol P, at least one of R 1 and R 2 is selected from the group consisting of functional moieties of the bisphenol A and bisphenol P; and when one of R 1 or R 2 is a moiety of bisphenol A, the other of R 1 and R 2 is a group other than where: X 1 is selected from the group consisting of functional moieties of diols and dioximes; X 2 is selected from the group consisting of substituted and unsubstituted aryls and alkyls; at least one of X 1 and X 2 includes an aromatic group; and where: each of R 3 and R 4 is individually selected from the group consisting of substituted and unsubstituted aryls and alkyls; at least one of R 3 and R 4 includes an —SO 2 group; and at least one of R 3 and R 4 includes an aromatic group.