磺化聚醚砜质子交换膜的制备及性能研究

Modern Plastics Processing and Applications(2006)

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Abstract
以浓硫酸为溶剂、氯磺酸为磺化剂对聚醚砜(PES)进行了磺化,采用氢核磁共振谱(1H NMR)、傅立叶变换红外光谱(FTIR)及热重分析(TGA)对磺化聚醚砜(SPES)进行了表征,证实PES得到了磺化。制备了一系列不同磺化度的SPES膜,测试了膜的接触角、含水率和电导率。试验结果表明,SPES具有良好的热稳定性;随着磺化度的增加,膜的亲水性能增加,膜的电导率增加。当SPES膜的磺化度达到37.0%(摩尔分数)时,SPES膜在室温下的电导率与商业化的Nafion112膜的电导率相当。
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Key words
conductivity,polyethersulfone,proton exchange membrane,sulfonation,membrane preparation
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