以多乙烯多胺类物质和均苯三甲酰氯为反应单体,采用多层界面聚合方法制备质子传导膜.在聚偏氟乙烯超滤膜表面进行多层界面聚合反应形成离子选择性分离膜,该膜具有质子传导能力和VO2+离子阻隔能力.通过系统研究水相溶液中单体种类对质子传导膜性能的影响,结果表明,以四乙烯五胺为水相单体制得的质子传导膜电化学性能较优,其电导率达到8.0×10-3 S/cm;VO2+离子扩散系数降低了一个量级,达到2.4×10-12m2/s;离子选择性系数60,较改性前提高2.2倍.研究发现,膜的离子选择性和膜致密层高分子链结构电荷密度之间存在相关性.
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