高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (8): 1414.

• 研究论文 • 上一篇    下一篇

聚酰亚胺对高性能树脂共混体系界面的反应增强

赖明芳, 杨宇明, 刘景江   

  1. 中国科学院长春应用化学研究所高分子物理与化学国家重点实验室, 长春 130022
  • 收稿日期:2000-03-07 出版日期:2001-08-24 发布日期:2001-08-24
  • 通讯作者: 刘景江(1942年出生),男,研究员,博士生导师,主要从事高分子物理与高分子材料的研究.
  • 基金资助:

    国家自然科学基金(批准号:59973022);国家重点基础研究基金(批准号:G1999064806)

Reactive Reinforcement of the Interface of High Performance Polymer Blends by PMR-POI

LAI Ming-Fang, YANG Yu-Ming, LIU Jing-Jiang   

  1. State Key Laboratory for Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun, 130022, China
  • Received:2000-03-07 Online:2001-08-24 Published:2001-08-24

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被引次数

1

摘要： 研究了以5-降冰片烯-2,3-二羧酸单甲酯为端基的PMR型聚酰亚胺(POI)作为界面介质对部分相容的聚醚砜/聚苯硫醚(PES/PPS)、聚醚醚酮/聚醚砜(PEEK/PES)共混体系的界面性质、形态结构及结晶行为的影响.结果表明,POI可以有效地增强两相间的界面粘结,显著降低PPS/PES共混物中PPS分散区的尺寸,改善两组分间的相容性.在熔融共混过程中,POI从本体向界面扩散并同PPS,PES产生交联和/或接枝,POI同PPS的反应活性远高于PES,但POI与PES发生反应.POI是PPS结晶的有效成核剂.

关键词: PPS, PES, PMR-POI, 界面, 共混

Abstract: The effect of PMRpolyimide(POI) as the interfacial agent on the interface characteristics, morphology features and crystallization of poly(ether sulfone)/poly(phenylene sulfide)(PES/PPS) and poly(ether ether ketone)/poly(ether sulfone)(PEEK/PES) partly miscible blends were investigated by means of the scanning electron microscopy, WAXDand XPSsurface analysis. It is found that the interfacial adhesion was enhanced remarkably, the size of the dispersed phase particles was reduced significantly and the miscibility was improved by the addition of POI. During melt blending cross link and/or grafting reaction of POIwith PES, PEEKand PPShomopolymers was detected, however the reaction activity of POIwith PPSwas much higher than that of PESand PEEK. It was also found that POIwas an effective nucleation agent of the crystallization of PPS.

Key words: Poly(phenylene sulfide), Poly(ether sulfone), PMR-polyimide, Interface, Blend

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