Citation: Li Rong ZHANG, Chun Qing ZHANG, Yan GAO, Zhi Yuan JIA. Synthesis and Characterization of Ion-exchange Copolyimide[J]. Chinese Chemical Letters, ;2004, 15(1): 17-18. shu

Synthesis and Characterization of Ion-exchange Copolyimide

Department of Polymer Science & Materials, Dalian University of Technology, Dalian 116012

Received Date: 13 December 2002

Fund Project: This project is supported by the National Natural Science Foundation of China (Contract grant number: 20104001).

A new diamine, disodium 4, 4'-di(4-aminophenoxy)-3, 3'-disulfonate-1, 1'-diphenyl-ketone, was prepared from the nucleophilic substitution of disodium 4, 4'-difluoro-3, 3'-di-sulfonate-1, 1'-diphenylketone and p-aminophenol. Polymerization of this diamine and 4, 4'-diamino-1, 1'-diphenyl ether with 3, 3', 4, 4'-tetracarboxyl dianhydride-1, 1'-diphenyl ketone gave ion-exchange copolyimide. The new diamine and its polyimide were characterized with ¹H-NMR and FT-IR.
- Diamine,
- ion-exchange polymer,
- polyimide
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