Synthesis and Characterization of Photosensitive Poly(imide sulfonates) for Fuel Cell Application
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第4期
论文作者：文璞山 LIU Hui KIM Jae Hoon LI Xiangdan LEE Myong-Hoon
文章页码：635 - 642
摘 要：The novel sulfonated polyimide membranes were successfully synthesized by thermal imidization with monomers of 4,4’-（hexafluoroisopropylidene）diphthalic anhydride （6FDA）, 4,4’-diamino-diphenyl ether-2,2’-disulfonic acid （SODA） and 3,3’-diaminochalcone （3DAC）. Photosensitive chalcone moiety was introduced to the main chain of copolymers, and the photocrosslinking of resulting copolymer in aqueous electrolyte was attempted. A series of sulfonated copolyimide precursors containing chalcone functional groups in the main chain were prepared with different sulfonation degrees by controlling the molar ratio of SODA, 6FDA and 3DAC. The polymer membranes were prepared from these sulfonated aromatic precursors by solution casting and subsequent thermal imidization. The crosslinking with UV irradiation was attempted in the presence or absence of distilled water. The characterizations of the resulting membrane such as the ion-exchange capacity, water absorption and ionic conductivity were performed with respect to the copolymer compositions and the photocrosslinking conditions.
文璞山1，LIU Hui1，KIM Jae Hoon1，LI Xiangdan2，LEE Myong-Hoon1,3
1. Department of Polymer Science and Technology, Research Center for Advanced Materials Development, Chonbuk National University2. College of Chemistry and Material Science, South-Central University for Nationalities3. The Graduate School of Flexible and Printable Electronics, Chonbuk National University
摘 要：The novel sulfonated polyimide membranes were successfully synthesized by thermal imidization with monomers of 4,4’-（hexafluoroisopropylidene）diphthalic anhydride （6FDA）, 4,4’-diamino-diphenyl ether-2,2’-disulfonic acid （SODA） and 3,3’-diaminochalcone （3DAC）. Photosensitive chalcone moiety was introduced to the main chain of copolymers, and the photocrosslinking of resulting copolymer in aqueous electrolyte was attempted. A series of sulfonated copolyimide precursors containing chalcone functional groups in the main chain were prepared with different sulfonation degrees by controlling the molar ratio of SODA, 6FDA and 3DAC. The polymer membranes were prepared from these sulfonated aromatic precursors by solution casting and subsequent thermal imidization. The crosslinking with UV irradiation was attempted in the presence or absence of distilled water. The characterizations of the resulting membrane such as the ion-exchange capacity, water absorption and ionic conductivity were performed with respect to the copolymer compositions and the photocrosslinking conditions.
关键词：
