| abstract |
A method for preparing a polymer is provided. The method for preparing a polymer includes subjecting at least one monomer having a structure represented by Formula (I) to a reaction in the presence of sulfonic acid, diphenyl amine, and oxygen-containing phosphide, obtaining a sulfonium salt polymer n n n n n n n n n n wherein x is 0, 1, or 2, R 1 is C 1-6 alkyl group; and R 2 is independently hydrogen, or C 1-6 alkyl group. |