主权项 |
1. A polymer comprising one or more repeating units, wherein at least one of the repeating units comprises one or more benzimidazolium-containing moieties having Formula (I-A): wherein: R1 is independently selected from the group consisting of alkyl, perfluoroalkyl, heteroalkyl, alkoxy, perfluoroalkoxy, aryl, heteroaryl group and a polymer; R2 is alkyl; R2′, at each occurrence, is independently selected from the group consisting of hydrogen, and a polymer; R3 is independently selected from the group consisting of alkyl, perfluoroalkyl, heteroalkyl, aryl, aralkyl, and a polymer; and R5 is independently selected from the group consisting of hydrogen, and a polymer; wherein at least one of R1, R2′, R3, and R5 is a polymer. |