Synthesis and characterization of a novel poly(arylene ether sulfone) containing pendent imidazole groups for high temperature proton exchange membranes

	Synthesis and characterization of a novel poly(arylene ether sulfone) containing pendent imidazole groups for high temperature proton exchange membranes
	Wang J ; Zheng JF ; Zhao Z ; Zhang SB
刊名	journal of materials chemistry
	2012
卷号	22 期号:42 页码:22706-22712
关键词	FUEL-CELL APPLICATIONS POLYMER ELECTROLYTE CROSS-LINKING POLYBENZIMIDAZOLE MEMBRANES PHOSPHORIC-ACID AROMATIC POLYETHERS
ISSN号	0959-9428
通讯作者	zhang sb
中文摘要	a series of poly(arylene ether sulfone) containing pendent imidazole groups (psf-im-x) have been successfully synthesized based on a novel monomer 2,2'-bis-(2-methyl-imidazol-1-yl-methyl)-biphenyl-4,4'-diol (mipo). the pendent imidazole groups along the polymer chain were expected to provide functional sites for the acid-base interaction with the doping phosphoric acid (pa) when they are used as polymer electrolyte membranes for high temperature fuel cell applications. the pa content of the linear psf-im-x membranes is about 172.3-235.8% in 85 wt% h3po4 at room temperature. the volume swelling of these membranes is 114.4-194.0%, lower than that of polybenzimidazole (pbi) with similar pa content. the proton conductivities of the membranes are 0.021-0.053 s cm(-1) at 140 degrees c under absolutely dehydrated state. the low volume swelling and good proton conductivity may be attributed to the "side-chain-type" structures of pendent imidazole groups, which facilitate ion transport. to obtain higher acid doping while maintaining mechanical properties, cross-linked membranes were prepared by the reaction of the imidazole group of the polymer and p-xylene dichloride. the pa content of the membranes with 20% cross-linking is 313.2% in 85 wt% h3po4 at 80 degrees c. the stress at breaking and the proton conductivity of the membrane is 3.2 mpa at room temperature and 0.063 s cm(-1) at 140 degrees c in an absolutely dehydrated state.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000310721300053
公开日期	2013-03-18
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/47841]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang J,Zheng JF,Zhao Z,et al. Synthesis and characterization of a novel poly(arylene ether sulfone) containing pendent imidazole groups for high temperature proton exchange membranes[J]. journal of materials chemistry,2012,22(42):22706-22712.
APA	Wang J,Zheng JF,Zhao Z,&Zhang SB.(2012).Synthesis and characterization of a novel poly(arylene ether sulfone) containing pendent imidazole groups for high temperature proton exchange membranes.journal of materials chemistry,22(42),22706-22712.
MLA	Wang J,et al."Synthesis and characterization of a novel poly(arylene ether sulfone) containing pendent imidazole groups for high temperature proton exchange membranes".journal of materials chemistry 22.42(2012):22706-22712.