高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (8): 1406.

• 研究论文 • 上一篇    下一篇

双单体固相共聚改性聚丙烯技术及其机理研究

张立峰, 郭宝华, 张增民   

  1. 清华大学化学工程系高分子研究所, 北京 100084
  • 收稿日期:2000-07-05 出版日期:2001-08-24 发布日期:2001-08-24
  • 通讯作者: 张增民(1936年出生),男,教授,博士生导师,主要从事功能高分子材料及高分子合金研究.
  • 基金资助:

    国家自然科学基金资助

Studies on the Technique and Mechanism of Solid Grafting Polypropylene with Dual Monomers

ZHANG Li-Feng, GUO Bao-Hua, ZHANG Zeng-Min   

  1. Institute of Polymer Science & Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2000-07-05 Online:2001-08-24 Published:2001-08-24

摘要: 在马来酸酐(MAH)固相接枝改性聚丙烯(PP)的过程中加入合适比例的异氰脲酸三烯丙酯(TAIC)作为共聚单体,可以大大提高MAH在PP上的接枝率,同时可以有效抑制在普通固相接枝过程中PP的严重降解,得到了性能较好的高极性PP.与普通固相接枝法与熔体接枝法对比,双单体固相共聚接枝改性PP是一种得到高极性PP的有效方法.本文同时对双单体在固相接枝反应中的作用机理进行了探讨.

关键词: 高极性聚丙烯, 固相接枝, 双单体

Abstract: Solid grafting is a promising grafting method, which is simple, cheap and easy to control, to get a polar polypropylene(PP). However, the achieved product may have a severe degradation and the graft ratio cannot satisfy us. In this paper, dual monomers, maleic anhydride(MAH) and tri-allyLIsocyanurate(TAIC) were used to graft onto PP. It was found that TAICwas efficient to enhance the MAHcontent of the products and prohibit PP's degradation. The MAHcontent of the product can reach 7.2% with 4%TAIC. This is prominent when it was compared with melt grafting product and normal solid grafting product. The MAHcontent and the melt flow rate(MFR) of the product can be adjusted by changing TAIC's amount. The reaction mechanism of dual monomers in the grafting polymerization and their composition in the product were also discussed.

Key words: High polar polypropylene, Solid grafting, Dual monomers

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