兰州大学机构库 >化学化工学院
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.
Indexed BySCIE ; EI
2015-02-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
Volume476Issue:476Pages:364-372
PublisherELSEVIER
Publication PlaceAMSTERDAM
AbstractIn 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.
KeywordProton exchange membranes Cross linking Sulfonated polyimide POSS
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
Subject AreaEngineering ; Polymer Science
Project NumberNational 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]
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
Funding OrganizationNSFC ; LZU ; GSSTD
DOI10.1016/j.memsci.2014.12.002
ISSN0376-7388
SubtypeArticle
Language英语
WOS IDWOS:000349382600040
EI ID20145100352064
First Inst
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/107409
Collection化学化工学院
Corresponding AuthorGong, 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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