中华医学超声杂志

应用化学 ›› 1984, Vol. 0 ›› Issue (4): 34-39.

• 研究论文 • 上一篇    下一篇

接枝共聚物EPR-g-PS作PS/EPDM共混体系增容剂的探讨

马京晶, 黄葆同   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1984-03-26 修回日期:1984-06-21 出版日期:1984-12-10 发布日期:1984-12-10

STUDY ON THE USE OF GRAFT COPOLYMER EPR-g-PS AS A.COMPATIBILIZER FOR PS/EPDM BLENDS

Ma Jingjing, Huang Baotong   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1984-03-26 Revised:1984-06-21 Published:1984-12-10 Online:1984-12-10

PDF

444

被引次数

5

摘要： 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。实验结果表明,共混体系的组成、增容剂加入量以及增容剂分子结构对共混体系冲击强度有很大影响。将这些因素与相差显微镜及扫描电镜研究所揭示的共混物形态的变化相联系,对此类接校共聚物作为不相容体系增容剂的机理作了探讨。

Abstract: Efforts have been made to use the graft copolymer EPR-g-PS with ethylene and propylene copolymer(EPR) as the backbone and polystyrene(PS) as grafts, prepared by macromer copolymerization, as a compatibilizer for PS/EPDM blends. The results indicated that composition of the blends, dosage and molecular structure of the graft copolymers had strong effects on impact strength of the blends. The mechanism of the graft copolymers as a compatibilizer for PS/EPDM blends has been interpreted by correlating the structure of the graft copolymers with the morphology of the blends revealed by phase contrast microscopy and scanning electron microscopy.

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