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Studies on Proton Conductivity and Methanol Permeability of Poly(ether sulfone)/Sulfonated Poly(ether ether ketone) Blend Membranes

Published online by Cambridge University Press:  01 February 2011

Hong Zhu ,
Wein-Duo Yang ,
Yong-sheng Wei ,
Wu-bin Yang ,
Xue-qing Yu  and
Xu-dong Cao
Hong Zhu
Affiliation:
[email protected], Chemistry Institution of China, Chemistry, 0902 BUILDING 4,JIAYUAN Department, NO.3 of Shangyuan, Residence Haidian District in, Beijing, Beijing, 100044, China, People's Republic of, 86-10-82161887, 86-10-82161887
Wein-Duo Yang
Affiliation:
[email protected], National Kaohsiung University of Applied Sciences, Department of Chemical and Materials Engineering, Kaohsiung, 807, Taiwan
Yong-sheng Wei
Affiliation:
[email protected], School of Science, Beijing Jiaotong University, Department of Chemistry, Beijing, 100044, China, People's Republic of
Wu-bin Yang
Affiliation:
[email protected], School of Science, Beijing Jiaotong University, Department of Chemistry, Beijing, 100044, China, People's Republic of
Xue-qing Yu
Affiliation:
[email protected],School of Science, Beijing Jiaotong University,Department of Chemistry,Beijing,100044,China, People's Republic of,
Xu-dong Cao
Affiliation:
[email protected], University of Ottawa, Department of Chemical Engineering, ottawa, K1N 6N5, Canada
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Abstract

Partially Sulfonated Poly(ether ether ketone) (SPEEK) samples were prepared by modification of corresponding poly(ether ether ketone) (PEEK) with concentrated sulfuric acid. Poly(ether sulfone)(PES) was blended into SPEEK to prepare PES/SPEEK blend membranes by solution casting. The glass transition temperature of blend membranes indicated the molecular miscibility between PES and SPEEK. Characteristics of the blend membranes, including water uptake, thermal stability, methanol permeability, swelling degree, proton conductivity, etc, were investigated. PES played an important role in the blend membranes. Though the proton conductivity of PES/SPEEK blend membranes decreased to some extent, their performance for barrier methanol and swelling had remarkably enhanced, showing the feasibility for direct methanol fuel cell.

Keywords

filmpolymerblend
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1098: Symposium HH – The Hydrogen Economy , 2008 , 1098-HH03-12
Copyright
Copyright © Materials Research Society 2008

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