| GAS TRANSPORT PROPERTIES OF A POLYIMIDE BASED ON 2, 2-BIS (3, 4-DECARBOXYPHENYL) HEXAFLUOROPROPANE AND meta-PHENYLENEDIAMINE |
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| 作者姓名： | XU Zhikang XU Youyi Springer Jürgen |
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| 作者单位： | Department of Polymer Science & Engineering，Zhejiang University，Hangzhou 310027 China，Department of Polymer Science & Engineering，Zhejiang University，Hangzhou 310027 China，Institute of Technical Chemistry，Technical University of Berlin，Berlin 10623，Germany |
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| 摘 要： | By means of a vacuum time-lag method, gas transport properties of apolyimide based on 2, 2- bis (3, 4- decarboxyphenyl ) hexafluoropropane dianhydride (6FDA )and meta- phenylenediamine (mPDA ) have been measured as a function of upstream pres-sure and temperature. The results show that no gas-induced plasticization occurs for thispolyimide in the upstream pressure range from 1 atm to 20atm. The temperature depen-dence of P and D can be described by the Arrhenius equations. The activation energiesof permeation and diffusion were obtained for the gas/polymer pair studied and correlatedwith the size of penetrant gas.
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| 收稿时间： | 1997-01-19 |
GAS TRANSPORT PROPERTIES OF A POLYIMIDE BASED ON 2, 2-BIS (3, 4-DECARBOXYPHENYL) HEXAFLUOROPROPANE AND meta-PHENYLENEDIAMINE |
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| XU Zhikang,XU Youyi,Springer,Jurgen.GAS TRANSPORT PROPERTIES OF A POLYIMIDE BASED ON 2, 2-BIS (3, 4-DECARBOXYPHENYL) HEXAFLUOROPROPANE AND meta-PHENYLENEDIAMINE[J].Chinese Journal of Polymer Science,1998,0(1):86-90. |
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| Authors: | XU Zhikang XU Youyi Springer Jurgen |
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| Institution: | Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China Institute of Technical Chemistry; Technical University of Berlin; Berlin 10623; Germany |
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| Abstract: | By means of a vacuum time-lag method, gas transport properties of apolyimide based on 2, 2- bis (3, 4- decarboxyphenyl ) hexafluoropropane dianhydride (6FDA )and meta- phenylenediamine (mPDA ) have been measured as a function of upstream pres-sure and temperature. The results show that no gas-induced plasticization occurs for thispolyimide in the upstream pressure range from 1 atm to 20atm. The temperature depen-dence of P and D can be described by the Arrhenius equations. The activation energiesof permeation and diffusion were obtained for the gas/polymer pair studied and correlatedwith the size of penetrant gas. |
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| Keywords: | Polyimide Membrane Gas permeation Gas separation |
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