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Citation: Qiu Xuepeng, Zheng Guodong, Xu Guanfan, Zhang Wenhao, Wen Jiumian, Zhang Jinlan, Xu Jiping. Surface Modification by Fluorine and Oxygen-Nitrogen Permeability of Poiy[1-(trimethylsilyl)-1-propyne][J]. Chinese Journal of Applied Chemistry, ;1994, 11(2): 96-98. shu

Surface Modification by Fluorine and Oxygen-Nitrogen Permeability of Poiy[1-(trimethylsilyl)-1-propyne]

1.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 26 May 1993
Available Online: 28 October 1993
Fund Project:

Poly[1-(trimethylsilyl)-1-propyne]membranes were modified with fluorine gas.The fluorinated membranes exhibited good gas permeation properties and a significant increase in gas selectivity over the unfluorinated PTMSP membranes.The oxygen-nitrogen separation coefficient α_O₂/N₂ increased from 1.5 to 4.75,the oxygen permeation P_O₂ coefficients decreased from 8600 to 370 barrier,and the constancy of gas permeabitily of the membranes was improved.
- polytrimethylsilylpropyne,
- modification by fluorine,
- oxygen nitrogen permeability,
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