| abstract |
A composition comprising at least one fluorinated polymer comprising -SO 2 X functional groups, wherein X is selected from X' or from OM and wherein X' is selected from the group consisting of F, CI, Br, I and M is selected from the group consisting of H, alkaline metals, NH4, and at least one fluorinated aromatic compound. Ion conducting membranes comprising the composition have improved resistance towards radical degradation in fuel cell applications. |