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Influence of casting conditions on the properties of sulfonated poly(ether ether ketone ketone)/phosphotungstic acid composite proton exchange membranes
Author(s) -
Xu Xianfeng Li, Dan,
Zhang Gang,
Wang Zhe,
Zhao Chengji,
Na Hui
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.25543
Subject(s) - phosphotungstic acid , membrane , ether , ketone , materials science , solvent , casting , polymer chemistry , proton exchange membrane fuel cell , chemical engineering , dimethylformamide , composite number , polyether ether ketone , polymer , chemistry , peek , organic chemistry , composite material , catalysis , biochemistry , engineering
The sulfonated poly(ether ether ketone ketone)/phosphotungstic acid (SPEEKK/PWA) composite membranes were researched for proton exchange membranes. The effect of casting condition on the properties of membranes was studied in detail. The study showed that the casting condition has great influence on the membrane properties because of the hydrogen bond between the SPEEK and PWA and the interaction between the SPEEKK and dimethylformamide (DMF). The PWA particles are well crystallized on the surface when the velocity of the solvent volatilization is very slow under the SEM. The study will favor further research on excellent composite membranes for proton exchange membrane fuel cells. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 4020–4026, 2007