| abstract |
A polymer and a method for preparing the same are provided. The polymer includes a first repeat unit and a second repeat unit. In particular, the first repeat unit is n n n n n n n n n n and, the second repeat unit is n n n n n n n n n n wherein R + is n n n n n n n n n n A − is F − , Cl − , Br − , I − , OH − , HCO 3 − , HSO 4 − , SbF 6 − , H 2 PO 4 − , H 2 PO 3 − , or H 2 PO 2 − ; X is n n n n n n n n n n i and j are independently 0, or an integer from 1 to 4; Y is —O—, —S—, —CH 2 —, or —NH—; R 1 is independently C 1-8 alkyl group; and, R 2 and R 3 are hydrogen, or independently C 1-8 alkyl group. |