Polymerization of methyl methacrylate photosensitized by the systems derived from triethylamine and benzophenone-p-isopropylene glycol methacrylate-methyl methacrylate copolymer

Copolymers with varying content of p-isopropylene glycol benzophenone fragments in the polymer chain were synthesized by the thermal copolymerization of methyl methacrylate and benzophenone-p-isopropylene glycol methacrylate. Based on these copolymers, donor-acceptor systems with various ratios of proton donor (triethylamine) and proton acceptor (benzophenone-p-isopropylene glycol methacrylate-methyl methacrylate copolymer) were obtained, which can be used in the photosensitized polymerization of methyl methacrylate. It is found that triethylamine is the main source of free alkylamino radicals ensuring photopolymerization of methyl methacrylate under the action of UV irradiation.