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化工学报  2015 

含氟聚芴醚二唑质子交换膜的性能

DOI: 10.11949/j.issn.0438-1157.20150633, PP. 445-449

Keywords: 制备,芳香亲核取代,,质子交换膜,机械性能,燃料电池

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Abstract:

将十氟二唑和双酚芴作为聚合物单体制备了一种新型的偏氟聚芴醚二唑质子交换膜。通过加入4-羟基磺酸钠进攻十氟二唑邻位的C-F键引入官能基团探究了膜的制备方法。研究了膜的物理、电化学性能并组装了燃料电池单电池。实验结果表明:该膜具有较高的离子传导率、较强的机械性能及低的甲醇渗透率。30℃时,传导率为58mS·cm-1,70℃,传导率达到了137mS·cm-1。甲醇渗透率是Nafion?117膜的1/2,在100℃时,单电池的功率达到85mW·cm-2。

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