引用本文:
郑国栋, 许观藩, 肖军, 张金兰, 闻久绵, 孙晓光, 邱雪鹏, 徐纪平. 聚1-三甲硅基丙炔膜的溴化和气体透过性[J]. 应用化学,
1993, 10(5): 75-77.
Citation: Zheng Guodong, Xu Guanfan, Xiao Jun, Zhang Jinlan, Wen Jiumian, Sun Xiaoguang, Qiu Xuepeng, Xu Jiping. BROMINATION OF POLY-1-TRIMETHYLSILYLPROPYNE MEMBRANE AND ITS GAS PERMEATION PROPERTIES[J]. Chinese Journal of Applied Chemistry, 1993, 10(5): 75-77.
Citation: Zheng Guodong, Xu Guanfan, Xiao Jun, Zhang Jinlan, Wen Jiumian, Sun Xiaoguang, Qiu Xuepeng, Xu Jiping. BROMINATION OF POLY-1-TRIMETHYLSILYLPROPYNE MEMBRANE AND ITS GAS PERMEATION PROPERTIES[J]. Chinese Journal of Applied Chemistry, 1993, 10(5): 75-77.
聚1-三甲硅基丙炔膜的溴化和气体透过性
English
BROMINATION OF POLY-1-TRIMETHYLSILYLPROPYNE MEMBRANE AND ITS GAS PERMEATION PROPERTIES
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 (aO2/N2) 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.
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Key words:
- polytrimethylsilylpropyne
- / bromination
- / membrane
- / gas permeation
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