He Gaohong   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : Director of R & D Center of Membrane Science and Technology

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Language:English

Paper Publications

Title of Paper:咪唑季铵化聚醚砜阴离子交换膜的制备与性能表征

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Date of Publication:2014-06-18

Journal:高分子材料科学与工程

Included Journals:PKU、ISTIC、CSCD、EI

Volume:30

Issue:6

Page Number:142-146

ISSN No.:1000-7555

Key Words:1-甲基咪唑;聚醚砜;阴离子交换膜;燃料电池

Abstract:以1-甲基咪唑为季铵化试剂,通过氯甲基化、季铵化、碱化等步骤,成功制备了不同氯甲基化取代度咪唑季铵化聚醚砜(PES-ImOH)阴离子交换膜.并对膜的离子交换容量(IEC)、吸水率、溶胀度和氢氧根传导率等性能进行表征.实验结果表明,当PES-ImOH膜的氯甲基化取代度(DC)为40% ~~61%,60℃时膜具有适宜的吸水率(24%~80%),较低的溶胀度(15% ~44%).DC为73%时,膜的IEC达到1.85 mmol/g,20℃时的离子传导率达到34 mS/cm,初始分解温度达到190℃.说明PFES-ImOH膜在碱性阴离子交换膜燃料电池方面有很好的应用前景.

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