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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