The roles of solvent type and amount of residual solvent on determining the structure and performance of sulfonated poly(ether ether ketone) proton exchange membranes

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• 作者：Xin Liu^a ; ^b ; Shaojian He^a ; ^{heshaojian@ncepu.edu.cn} ; Shanxin Liu^a ; Huina Jia^a ; Lin Chen^c ; Bing Zhang^a ; Liqun Zhang^b ; Jun Lin^a ; ^{jun.lin@ncepu.edu.cn}
• 关键词：Proton exchange membrane ; Residual solvent ; Proton conductivity ; Water uptake ; Hydrophilic domains
• 刊名：Journal of Membrane Science
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：523
• 期：Complete
• 页码：163-172
• 全文大小：2315 K
• 卷排序：523

文摘

SPEEK membranes with controlled amount of RS content cast by four types of solvents. The treatment with acid and DI water removes all RS in the treated membranes. The same DS and RS content correspond to the same membrane water uptake regardless of solvent type. Same proton conductivity for the membranes of high DS cast by different solvents with the same RS content. At low DS, the membrane cast by DMSO has highest proton conductivity and largest hydrophilic domains.