| abstract |
A polymerizable monomer represented by general formula (1), a polymer thereof, a process for producing the same, and the use of the polymer, wherein R¹ represents hydrogen, methyl, chloro or cyano; R² represents C₁-C₄ alkylene; R³ represents C₃-C₁₀ alkylene; R⁴ represents C₆-C₁₈ alkyl; R⁵ to R⁸ may be the same or different from one another and each represents optionally substituted C₁-C₃ alkyl; A represents methylene, optionally substituted phenylene, - CH₂O-, -CH₂CH₂O-, -CO-, -CO-N(R⁹)-(wherein R⁹ represents hydrogen or methyl), or vinylene; m represents 0 or 1; and X and Y may be the same or different from each other and each represents a monovalent anion, or X and Y may be combined together to represent a divalent anion. |