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中国科学院大学学报 ›› 2008, Vol. 25 ›› Issue (3): 334-339.DOI: 10.7523/j.issn.2095-6134.2008.3.007

• 论文 • 上一篇    下一篇

结构可控的功能化聚丙烯嵌段共聚物的应用研究

张辽云1,胡友良2   

  1. 1中国科学院研究生院,北京100049

    2中国科学院化学研究所,北京100080

  • 收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2008-05-15
  • 通讯作者: 张辽云

Studies on applications of well-defined functional polypropylene copolymers

Zhang Liao-Yun1, Hu You-liang2   

  1. 1 Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    2 CAS Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2008-05-15
  • Contact: Zhang Liao-Yun

摘要: 利用差示扫描量热仪及扫描电子显微镜,分别对结构可控聚丙烯-b-聚甲基丙烯酸甲酯共聚物和聚丙烯-b-聚苯乙烯共聚物用于聚烯烃共混体系的热性能及相容性进行了研究.实验结果表明,这些功能化的聚丙烯嵌段共聚物基本上保持了原有聚丙烯高熔点等优良特性,并对它们相应共混体系有明显的增容作用.另外,这些功能化的聚丙烯嵌段共聚物能提高它们相应共混体系的弯曲强度和弯曲模量等力学性能.

关键词: 聚丙烯嵌段共聚物, 热性能, 相容性, 弯曲性能

Abstract: Differential scanning calorimeter and scanning electron microscopy were used to study effect of well-defined functional i-PP-b-PMMA block copolymer in PP/PMMA blends and that of i-PP-b-PS block copolymer in PP/PS blends. The experimental results showed these functional polypropylene copolymers maintained characteristics of high melting point owned by starting isotactic polypropylene polymers, and were clearly proven to be effective compatibilizer in PP/PMMA blends and PP/PS blends. In addition, i-PP-b-PMMA and i-PP-b-PS could increase bending strength and bending modulus of corresponding blending systems.

Key words: polypropylene copolymers, thermal behavior, compatibility, bending property