用化学气相沉积(CVD)聚合法制备了聚溴代对亚苯基二亚甲基(PPX-Br)膜,采用FT-IR和元素分析的方法证实了其化学结构.对膜溶解性和抗化学氧化性能的研究表明,聚溴代对亚苯基二亚甲基膜具有优异的耐溶剂性和抗化学氧化性能.对其热性能的研究表明,溴的引入使得膜的玻璃化转变温度降低,室温柔性增强,热降解性能与聚氯代对亚苯基二亚甲基(PPX-C)相似.与PPX膜相比,溴的引入对膜的亲水性能影响不大,而水汽渗透率明显降低,具有更好的防潮性.
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