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题名: Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes
作者: Gong, CL(宫琛亮); Liang, Y; Qi, ZG; Li, H; Wu, ZY; Zhang, ZY; Zhang, SJ; Zhang, XD; Li, YF(李彦锋)
收录类别: SCIE ; EI
出版日期: 2015-02-15
刊名: JOURNAL OF MEMBRANE SCIENCE
卷号: 476, 期号:476, 页码:364-372
英文摘要: In this work, a series of octa(aminophenyl)silsesquioxane(OAPS) covalently cross-linked sulfonated polyimides (SPIs) were fabricated for improving their mechanical and chemical stability, reducing fuel crossover and improving proton conductivity as proton exchange membranes. The content of OAPS cross-linkers was modified from 0.2 to 1.6 mol% to control the degree of cross-linking. The resulting OAPS cross linked membranes were solution processable and exhibited higher strength, superior thermal and chemical stabilities, and lower methanol permeability compared with the linear SPI membrane. Compared with Nafion 117, all of the cross linked membranes exhibited comparable proton conductivity from 20 to 80 degrees C and at 100% relative humidity. Moreover, when the content of OAPS was 0.4 mol%, the cross linked SPI exhibited the highest proton conductivity (0.111 S/cm). (C) 2014 Elsevier B.V. All rights reserved.
关键词: Proton exchange membranes ; Cross linking ; Sulfonated polyimide ; POSS
作者部门: [Gong, Chenliang ; Liang, Yu ; Qi, Zhigang ; Li, Hui ; Wu, Zhongying ; Zhang, Zeying ; Zhang, Shujiang ; Zhang, Xiangdong ; Li, Yanfeng] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
通讯作者: Gong, CL (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China.
学科分类: Engineering; Polymer Science
文章类型: Article
所属项目编号: National Natural Science Foundation of China [21204033] ; Natural Science Foundation of Gansu Province [1208RJYA016] ; Fundamental Research Funds for Central Universities [lzujbky-2012-23, lzujbky-2013-26]
所属项目名称: 国家自然科学基金项目 ; 中央高校基本科研业务费专项资金 ; 甘肃省青年科技基金计划
项目资助者: NSFC ; LZU ; GSSTD
语种: 英语
DOI: 10.1016/j.memsci.2014.12.002
ISSN号: 0376-7388
WOS记录号: WOS:000349382600040
EI记录号: 20145100352064
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/107409
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Gong, Chenliang. Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes[J]. Journal of Membrane Science,2015,2015(476):364-372.
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