Efforts have been made to use the graft copolymer EPR-g-PS with eth-ylene and propylene copolymer(EPR) as the backbone and polystyrene(PS)as grafts, prepared by macromer copolymerization, as a compatibilizer forPS/EPDM blends.

• 使用了由大分子单体共聚合制备的以乙丙橡胶(EPR)为主干、聚苯乙烯(PS)为支链的接枝共聚物EPR-g-PS作为PS/EPDM共混体系的增容剂。