关键词: N-苯基马来酰亚胺-丙烯腈-苯乙烯-二烯橡胶四元共聚物, 维卡软化点, 热变形温度, 耐热树脂

Abstract: N-phenyleimide-arcylonitrile-styrene-butadiene (NPMI-AN-St-BR) tetrapolymer was prepared via continuous bulk polymerization. The effects of NPMI content, polymerization temperature, and feed patterns, etc. on the properties of the products were investigated. Thermal analysis indicated that both Vicat softening point and heat distortion temperatures of the tetrapolymer elevated rapidly with the increasing content of NPMI, whereas the melt flow rate decreased. The comprehensive properties of the tetrapolymer were comparable or superior to two important heat-resistant ABS resins (BH-102H and BH-202). Rheological measurement with torque rheometer showed that the tetrapolymer possessed good processibility.

Key words: N-phenyleimide-arcylonitrile-styrene-butadiene tetrapolymer, Vicat softening point, heat distortion temperature, heat-resistant resin