Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes

doi:10.1016/j.memsci.2014.12.002

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	Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes
	Gong, CL(宫琛亮); Liang, Y; Qi, ZG; Li, H; Wu, ZY; Zhang, ZY; Zhang, SJ; Zhang, XD; Li, YF(李彦锋); Gong, CL (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China.
	2015-02-15
Source Publication	JOURNAL OF MEMBRANE SCIENCE
ISSN	0376-7388
Volume	476 Issue:476 Pages:364-372
Abstract	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.
Keyword	Proton exchange membranes Cross linking Sulfonated polyimide POSS
Subject Area	Engineering ; Polymer Science
Publisher	ELSEVIER
DOI	10.1016/j.memsci.2014.12.002
Publication Place	AMSTERDAM
Indexed By	SCIE ; EI
Language	英语
First Inst	是
Funding Project	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
Project Number	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]
WOS ID	WOS:000349382600040
Funding Organization	NSFC ; LZU ; GSSTD
Subtype	Article
EI ID	20145100352064
Department	[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
Citation statistics	Cited Times:38[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	https://ir.lzu.edu.cn/handle/262010/107409
Collection	化学化工学院
Corresponding Author	Gong, CL (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China.
Recommended Citation GB/T 7714	Gong, CL,Liang, Y,Qi, ZG,et al. Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2015,476(476):364-372.
APA	Gong, CL.,Liang, Y.,Qi, ZG.,Li, H.,Wu, ZY.,...&Gong, CL .(2015).Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes.JOURNAL OF MEMBRANE SCIENCE,476(476),364-372.
MLA	Gong, CL,et al."Solution processable octa(aminophenyl)silsesquioxane covalently cross-linked sulfonated polyimides for proton exchange membranes".JOURNAL OF MEMBRANE SCIENCE 476.476(2015):364-372.

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