CIESC Journal ›› 2012, Vol. 63 ›› Issue (S1): 235-239.DOI: 10.3969/j.issn.0438-1157.2012.z1.041

Previous Articles    

Preparation of chemically cross-linked anion exchange membranes containing pendant quaternary guanidinium groups

WANG Wenxiao1,2,SHANG Yuming2,XIE Xiaofeng2,MENG Xianghai1,LIU Zhichang1   

  • Received:2012-05-15 Revised:2012-04-05 Online:2012-05-28 Published:2012-05-28

化学交联胍基功能化阴离子交换膜的制备

王文晓1,2,尚玉明2,谢晓峰2,孟祥海1,刘植昌1   

  1. 1中国石油大学(北京)化学化工学院,北京 102249;2清华大学核能与新能源技术研究院,北京 100084
  • 通讯作者: 孟祥海;谢晓峰
  • 基金资助:

    国家自然科学基金;国家重点基础研究发展计划(973计划)

Abstract: The modification of chemical cross-linking is an effective method to enhance the anion exchange membrane mechanical properties.The organic superbase pentamethylguanidine (PMG) was used as a functional reagent,and reacted with poly (aryl ether oxadiazole)s to prepare anion exchange membranes (FPAEO-AEMs).The results show that crosslinker 6F-BPA is 6%,and the swelling rate of 28.8%; water absorption of 86.27%; conductivity of 3.12 × 10-2 S·cm-1; ion exchange capacity (IEC) of 2.57 mequiv·g-1; thermal decomposition temperature of up to 280℃.

Key words: chemically cross-linking modified, anion exchange membranes (AEMs), pentamethylguanidine (PMG), swelling ratio, ionic conductivity

摘要: 化学交联改性是提高阴离子交换膜机械性能的有效方法。采用有机强碱五甲基胍(PMG)作为功能化试剂,对氟化聚芳醚噁二唑(FPAEO)进行了功能化反应,加入六氟双酚A(6F-BPA)进行化学交联改性处理制得交联型氟化聚芳醚噁二唑阴离子交换膜(FPAEO-AEMs)。分析结果表明:交联剂6F-BPA为6%时,溶胀率为28.8%;吸水率为86.27%;电导率达到3.12×10-2 S·cm-1;离子交换容量(IEC)为2.57 mequiv·g-1;热分解温度可达280℃。

关键词: 化学交联改性, 阴离子交换膜, 五甲基胍, 溶胀率, 电导率