Anionic polymerization of monomers bearing quaternary ammonium groups 1. Polymerization of methacrylate derivatives

摘要

Amphiphilic surface-active vinyl monomers alkyl[2-(methacryloyloxy)ethyl] dimethylammonium bromides, where alkyl is butyl or dodecyl have been investigated with respect to their polymerization behavior in the presence of various anionic initiators (Bu2Mg, tert-BuOK, calcium amide alkoxide). In most cases, the products consist of a low-molecular-weight fraction (M-w up to 5000) and a high-molecular-weight fraction (M-w up to 120 000). Block copolymers of the quaternary ammonium monomers with ethylene oxide show associative behavior in aqueous solutions. [References: 21]