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	Synthesis and characterization of novel sulfonated naphthalenic polyimides as proton conductive membrane for DMFC applications
	Shang, Yuming ; Xie, Xiaofeng ; Jin, Hao ; Guo, Jianwei ; Wang, Yaowu ; Feng, Shaoguang ; Wang, Shubo ; Xu, Jingming
	2010-05-10 ; 2010-05-10
关键词	sulfonated polyimides proton conductive membrane methanol permeability fuel cell DMFC METHANOL FUEL-CELLS PERMEABILITY STABILITY ACID Polymer Science
中文摘要	To prepare proton conductive membrane for direct methanol fuel cells (DMFC), a novel sulfortated aromatic diamine monomer, 1,4-bis(4-amino-2-sulfonic acid-phenoxy)-benzene (DSBAPB) was synthesized and characterized by H-1 NMR and FT-IR. Then a series of sulfonated polyimides (SPIs) were prepared from DSBAPB with 1,4,5,8-naphthalene tetracarboxylic dianhydride (NTDA) and a non-sulfonated diamine, 4,4'-oxydianiline (ODA) via one-step high-temperature polymerization method. The sulfonation degree of the SPIs can be controlled by changing the mole ratio of sulfortated monomer to non-sulfonated monomer. The obtained SPI membranes exhibit desirable proton conductivity ranged from 7.9 x 10(-3) to 7.2 x 10(-2) S cm(-1) and low methanol permeability of less than 2.85 x 10(-7) cm(2) s(-1). Furthermore, the hydrolysis stability of the obtained SPIs is better than the BDSA based SPIs caused by the flexible structure. (c) 2006 Elsevier Ltd. All rights reserved.
语种	英语 ; 英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22812]
专题	清华大学
推荐引用方式 GB/T 7714	Shang, Yuming,Xie, Xiaofeng,Jin, Hao,et al. Synthesis and characterization of novel sulfonated naphthalenic polyimides as proton conductive membrane for DMFC applications[J],2010, 2010.
APA	Shang, Yuming.,Xie, Xiaofeng.,Jin, Hao.,Guo, Jianwei.,Wang, Yaowu.,...&Xu, Jingming.(2010).Synthesis and characterization of novel sulfonated naphthalenic polyimides as proton conductive membrane for DMFC applications..
MLA	Shang, Yuming,et al."Synthesis and characterization of novel sulfonated naphthalenic polyimides as proton conductive membrane for DMFC applications".(2010).

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