• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Cation Exchange Membranes by Radiation-Induced Graft Copolymerization of Styrene onto PFA Copolymer Films. II. Charactarization of Sulfonated Graft Copolymer Membranes
【24h】

Cation Exchange Membranes by Radiation-Induced Graft Copolymerization of Styrene onto PFA Copolymer Films. II. Charactarization of Sulfonated Graft Copolymer Membranes

机译：辐射诱导的苯乙烯接枝到PFA共聚物薄膜上的接枝共聚合的阳离子交换膜。二。磺化接枝共聚物膜的表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PFA-g-polystyrene sulfonic acid membranes were prepared by simultaneous radiation-induced graft copolymerization of styrene onto poly(tetrafluoroethylene-co-perfluorovinyl ether) (PFA) film followed by sulfonation. The membrane physicochemical properties such as swelling behavior, ion exchange capacity, hydration number, and ionic conductivity were studied as a function of the degree of grafting. Thermal as well as chemical stability of the membranes was also investigated. The membrane properties were found to be mainly dependent upon the degree of grafting. The water uptake, ion exchange capacity, hydration number, and ionic conductivity of the membranes were increased, whereas the chemical stability decreased as the degree of grafting increased. The membranes showed reasonable physico-chemical properties compared to Nafion 117 membranes. However, their chemical stability has to be further improved to make them acceptable for practical use in electrochemical applications.
机译：PFA-g-聚苯乙烯磺酸膜的制备方法是，将苯乙烯同时辐射诱导接枝共聚到聚四氟乙烯-全氟乙烯基醚（PFA）膜上，然后进行磺化。研究了膜的理化性质，如溶胀行为，离子交换容量，水合数和离子电导率，它们是接枝度的函数。还研究了膜的热稳定性和化学稳定性。发现膜性质主要取决于接枝程度。膜的吸水率，离子交换容量，水合数和离子电导率增加，而化学稳定性随接枝度的增加而降低。与Nafion 117膜相比，该膜表现出合理的物理化学性质。但是，必须进一步提高其化学稳定性，以使其在电化学应用中可以实际使用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号