中华医学超声杂志

应用化学 ›› 1993, Vol. 0 ›› Issue (5): 75-77.

• 研究简报 • 上一篇    下一篇

聚1-三甲硅基丙炔膜的溴化和气体透过性

郑国栋, 许观藩, 肖军, 张金兰, 闻久绵, 孙晓光, 邱雪鹏, 徐纪平   

  1. 中国科学院长春应用化学研究所 130022 长春
  • 收稿日期:1992-02-14 修回日期:1993-03-31 出版日期:1993-10-10 发布日期:1993-10-10
  • 基金资助:
    国家自然科学基金资助项目

BROMINATION OF POLY-1-TRIMETHYLSILYLPROPYNE MEMBRANE AND ITS GAS PERMEATION PROPERTIES

Zheng Guodong, Xu Guanfan, Xiao Jun, Zhang Jinlan, Wen Jiumian, Sun Xiaoguang, Qiu Xuepeng, Xu Jiping   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun
  • Received:1992-02-14 Revised:1993-03-31 Published:1993-10-10 Online:1993-10-10

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摘要： 在新的气体分离膜材料中,聚1-三甲硅基丙炔(PTMSP)以其高的气体透过性和优异的成超薄膜性而引起各方面的兴趣。目前的研究热点是如何提高PTMSP的氧氮透过分离系数(ao2/N2)和气体透过稳定性。

关键词: 聚三甲硅基丙炔, 溴化, 膜, 气体透过性

Abstract: The bromination of poly-1-trimethylsilylpropyne (PTMSP) membrane with N-bromosuc-cinimide in acetone and nitrogen diluted bromine vapor(Br2/N2 volume ratio:0.20～1.00) have been investigated. The machanism of the bromination and the relationship between gas permeation and microstructure of the brominated PTMSP membranes are discussed. A significant breakdown of siliconcarbon bond, which was found in the fluorination of PTMSP, does not take place during bromination.Bromination increased the separation factor of membrane (ao2N2) from 1.54 to 3.48,but only slightly improved its stability as gas permeation membrane. It is however with a marked decrease of the permeability coefficient of oxygene Po2.

Key words: polytrimethylsilylpropyne, bromination, membrane, gas permeation

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