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- Title
Crosslinked sulfonated poly(arylene ether ketone) with pendant carboxylic acid group via poly(ethylene glycol) for proton exchange membrane.
- Authors
Zhiliang Li; Xincai Liu; Danming Chao; Xiaofeng Lu; Libing He; Yang Yang; Wanjin Zhang
- Abstract
Novel proton exchange membranes are solvent‐cast from N,N‐dimethylacetamide (DMAc) solutions of the crosslinked poly(arylene ether ketone) copolymer with pendant carboxylic acid group (C‐SPAEK) via poly(ethylene glycol) (PEG) with different amounts. These membranes are formed as a result of physical and chemical crosslinking. In this study, 1H‐NMR and FTIR have been used to confirm the chemical structures of the copolymers. Mechanical and thermal properties, swelling and proton conductivity are affected by the crosslinker (PEG) content in the copolymers. Compared to the noncrosslinked C‐SPAEK membrane, the crosslinked membranes become more flexible and greatly reduced water uptake and swelling ratio with only slight sacrifice in proton conductivities. And the crosslinked membranes keep higher proton conductivities without a sharply decrease at higher temperature. These results show that the crosslinked membranes have potential applications as proton exchange membranes for fuel cell. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
- Subjects
SOLVENTS; POLYMERS; CARBOXYLIC acids; CHEMICAL reactions; THERMAL conductivity
- Publication
Journal of Applied Polymer Science, 2010, Vol 118, Issue 6, p3318
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.32439