期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nimb.2011.12.002
关键词
Irradiation; Polymer electrolyte membrane; VBC; PFA; Fuel cell
类别
资金
- Ministry of Education, Science, & Technology of Korea
In this study, a polymer electrolyte membrane, PFA-g-PVBSA was prepared through the radiation-induced graft copolymerization of vinylbenzyl chloride (VBC) monomer onto a poly(tetrafluoroethylene-co-perfluoropropylvinyl ether) (PFA) film and subsequent sulfonation processes. The IEC values and water uptakes of the prepared membranes increased when increasing the contents of the poly(vinylbenzyl sulfonic acid) (PVBSA) graft polymers in the membranes. Compared with Nafion 212, the degree of grafting (DOG) of membranes of 50% and 70% showed higher proton conductivity with significantly lower methanol permeability. The combination of these properties suggests that the prepared membranes are promising for future application in direct methanol fuel cells. (C) 2011 Elsevier B.V. All rights reserved.
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