Molecular Simulation of Polyimide Structure and Gas Permeation Properties

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概要

• 論文の詳細を見る

• Polyimide membranes of 6 FDA- p- PDA, 6 FDA-4, 4-ODA and BTC-4, 4-ODA were prepared. Gas permeabilities and selectivities of carbon dioxide and methane for the films were measured. 6 FDA polyimides exhibit both high selectivities and high permeabilities in CO<SUB>2</SUB>/CH<SUB>4</SUB> separation. Molecular structure of polyimides were investigated by using molecular simulation technique. 6FDA polyimides show helix configuration due to bending and twisting of polymer chain at carbon atom having-C (CF<SUB>3</SUB>) <SUB>2</SUB>- substituent groups. On the other hand normal polyimides without-C (CF<SUB>3</SUB>) <SUB>2</SUB>- give straight configuration. Helix configuration can be one of the important reason for high selectivity and high permeability of hexafluoro-substituted polyimide.

• 日本膜学会の論文

著者

• Matsumoto Kenji

  Central Research Laboratory, Nitto Denko Corporation

• Minamizaki Yoshihiro

  Central Research Laboratory, Nitto Denko Corporation

• Xu Ping

  Central Research Laboratory, Nitto Denko Corporation

• 松本 憲嗣

  Central Research Laboratory, Nitto Denko Corporation

• 南崎 善博

  Central Research Laboratory, Nitto Denko Corporation

関連論文

• Molecular Simulation of Polyimide Structure and Gas Permeation Properties

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