利用电子束引发预辐射接枝技术,在聚全氟乙丙烯(FEP)膜上接枝丙烯酸(AA)和对苯己烯磺酸钠(SSS)两单体,制备出一种含羧酸基团和磺酸基团的阳离子交换膜,接枝率越高,接枝膜的吸碱性能越好.差示量热扫描及X射线衍射测试表明,接枝膜结晶度随接枝率的升高而降低.这是接枝膜中FEP组份的"结晶变形"及接枝链对晶区的"稀释作用"综合影响的结果.
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