Synthesis and Thermostabilities of N-Substituted Maleimide Copolymers. II : N-Benzylmaleimide Copolymers

N-置換マレイミド共重合体の合成と熱安定性 (II) : N-ベンジルマレイミド共重合体

Synthesis and Thermostabilities of N-Substituted Maleimide Copolymers. II : N-Benzylmaleimide Copolymers

Creators Oishi Tsutomu

Creators Momoi Masaaki

Creators Fujimoto Minoru

Creators Katoh Kenji

Creators Koinuma Yasumi

In order to improve the thermostabilities of the common polymers, that is, polystyrene [poly (ST)], poly (methyl methacrylate) [poly (MMA)], and poly (vinyl acetate) [poly (VAc)], N-benzylmaleimide (BZMI) was copolymerized with ST, MMA, or VAc in the presence of azobisisobutyronitrile in benzene at 60℃. The thermostabilities of the copolymers obtained were investigated by thermal gravimetric analysis (TGA) and differential scanning calorimetric (DSC) measurements. The softening pointn. The initial degration temperature, and the glass transition temperature of poly (BZMI-co-ST)s, poly (BZMI-co-MMA)s and poly (BZMI-co-VAc)s could rise with increasing the contents of BZMI in the copolymers.

[ISSN]0372-7661

[NCID]AN00244228