CIESC Journal ›› 2015, Vol. 66 ›› Issue (S1): 237-241.DOI: 10.11949/j.issn.0438-1157.20150362

• 分离工程 • 上一篇    下一篇

离子交换容量可控自交联型阴离子交换膜的制备

张雪飞1,2, 王树博2, 费哲君2, 李薇薇2, 赵阳2, 谢晓峰2, 齐士成1, 吕亚非1   

  1. 1 北京化工大学材料科学与工程学院, 北京 100029;
    2 清华大学核能与新能源技术研究院, 北京 100084
  • 收稿日期:2015-03-20 修回日期:2015-03-27 出版日期:2015-06-30 发布日期:2015-06-30
  • 通讯作者: 齐士成, 谢晓峰
  • 基金资助:
    国家高技术研究发展计划项目(2012AA051201);国家重点基础研究发展计划项目( 2012CB215505)。

Synthesis and characterization of ion exchange capacity controlled and self-crosslinked anion exchange membranes

ZHANG Xuefei1,2, WANG Shubo2, FEI Zhejun2, LI Weiwei2, ZHAO Yang2, XIE Xiaofeng2, QI Shicheng1, LÜ Yafei1   

  1. 1 College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
  • Received:2015-03-20 Revised:2015-03-27 Online:2015-06-30 Published:2015-06-30
  • Supported by:
    supported by the National High Technology Research and Development Program of China (2012AA051201) and the National Basic Research Program of China( 2012CB215505).

摘要: N-溴代丁二酰亚胺(NBS)为溴化试剂, 对十氟 二唑与四甲基双酚A(TM-BPA)聚合的聚合物主链进行溴化, 随后以N-乙烯基咪唑作为双功能化试剂进行功能化, 制备了含有双功能化试剂的氟化聚 二唑芳醚阴离子交换膜。其中, 功能化试剂(作为离子交换的功能基传导离子及作为膜内分子的交联点)改善膜物理性质。制备的阴离子交换膜在80℃下的离子传导率为9.02×10-2 S·cm-1, 甲醇渗透率为1.89×10-7 cm2·s-1(20℃), 在碱性燃料电池中具有应用潜力。

关键词: 电解质, 自交联, 双功能化试剂, 渗透率, 燃料电池

Abstract: Functionalized fluorinated poly (arylene ether oxadiazole) (FPAEO) based cross-linked anion exchange membranes (AEMs) with bifunctional agents were prepared via copolymerization, bromination and solution casting using a thermal cross-linking method. FPAEO-TM synthesized via copolymerization of 4, 4'-isopropylidenebis (2, 6-dimethylphenol) (TM-BPA) and 2, 5-bis(2, 3, 4, 5, 6-pentafluorophenyl)-1, 3, 4- oxadiazole(FPOx) was brominated by N-bromosuccinimide (NBS), thereby avoiding chloromethylation, which required carcinogenic reagents. 1-vinylimidazole acted as a bifunctional agent and played two roles: it served as an ion exchange functional group which provided membranes high conductivity, or as a crosslinking agent to improve the membranes' characteristics. The mambrane's conductivity is 9.02×10-2 S·cm-1 at 80℃ and methanol permeability is 1.89×10-7 cm2·s-1(20℃). Membranes had the potential to be used in alkaline fuel cell alkaline (AFC).

Key words: electrolytes, self-cross-linking, bifunctional agent, permeability, fuel cells

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