標題: Sulfonated poly(ether ether ketone) membranes crosslinked with sulfonic acid containing benzoxazine monomer as proton exchange membranes
作者: Ye, Yun-Sheng
Yen, Ying-Chieh
Cheng, Chih-Chia
Chen, Wen Yi
Tsai, Li-Tuan
Chang, Feng-Chih
應用化學系
Department of Applied Chemistry
關鍵字: Benzoxazine;Proton exchange membrane;SPEEK
公開日期: 3-Jul-2009
摘要: The incorporation of benzoxazine (Ba) or sulfonic acid containing benzoxazine (SBa) as a crosslinking agent in SPEEK proton exchange membrane (PEM) can substantially improve the SPEEK membrane performance. The SPEEK-SBa membranes give higher effective selectivity than corresponding SPEEK-Ba membranes under close crosslinker loading and thus are more suitable to be used in direct methanol fuel cells. The best achieved SPEEK-SBa composition (SBa40) gives reasonable proton conductivity (0.91 x 10(-2) S cm(-1)) but significantly lower methanol permeability (6.5 x 10(-8) 52 cm(-1)). The achieved effective selectivity (Phi = SPEEK-SBa40: 14.0 x 10(4) S s cm(-3)) is substantially higher than the plain SPEEK (Phi = 7.24 x 10(4) S s cm(-3)) which has great potential for practical applications in DMFCs. (C) 2009 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.polymer.2009.04.072
http://hdl.handle.net/11536/6985
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2009.04.072
期刊: POLYMER
Volume: 50
Issue: 14
起始頁: 3196
結束頁: 3203
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