Preparation of plasma-polymerized membranes from I-(trimethylsilyl)-I-propyne and gas permeability through the membranes |
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Authors: | Hidetoshi Klta Taro Sakamoto Kazuhiro Tanaka Ken-ichi Okamoto |
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Affiliation: | (1) Department of Chemical Engineering, Faculty of Engineering, Yamaguchi University, Ube, 755 Yamaguchi, Japan |
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Abstract: | Summary Plasma-polymerized membranes for gas separation were prepared from 1-(trimethylsilyl)-1-propyne. The permeation data of He, H2 02, N2, CO2, and CH4 through the membranes showed plasma-polymerized 1-(trimethylsilyl)-1-propyne had high permselectivity but low permeability compared with polyl-(trimethylsilyl)-1-propyne]. This behavior is considered to be due to the crosslinking structure of the plasma-polymerized membrane. The correlation between plasma polymerization conditions and the membrane performance was studied. The optimum condition at which the deposition rate of the plasma polymer is maximized agreed with the optimum value to yield maximum separation factor of gases through the membrane. |
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