Stereospecific radical polymerization of methacrylate bearing oxazolidone structure and improvement of glass transition temperature of urethane methacrylate copolymers

We synthesized the novel methacrylate monomer bearing an oxazolidone structure (M1) and performed radical polymerization of M1 by traditional procedures. The glass transition temperature (Tg) obtained polymer (P1) was a significantly high value compared to that poly(methyl methacrylate) typical poly(urethane methacrylate)s. copolymers monofunctional urethane derived from 2-hydroxyethyl phenyl isocyanate (M2) exhibited linear rise Tg values depending on composition ratio M1. NMR analysis estimation reactivity Q–e suggested improvement resulted stereoregularity, meaning syndiotacticity improved with increasing Furthermore, thermal curing reaction or M2 bifunctional acrylate successfully proceeded, then cured product much higher than M2.