...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>e-Polymers >Preparation of the crosslinked polymer electrolyte membranes based on a hyperbranched poly(amidoamine) and their proton conductivity
【24h】

Preparation of the crosslinked polymer electrolyte membranes based on a hyperbranched poly(amidoamine) and their proton conductivity

机译：基于超支化聚（酰胺基胺）的交联聚合物电解质膜的制备及其质子传导性

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A series of novel crosslinked polymer electrolyte membranes were successfully prepared based on the modification of a hyperbranched poly(amidoamine) with terminal vinyl groups. The membranes possessed the different contents of proton-generating sites (i.e., protonated tertiary amine groups) and triflate (Tf2N-) in the crosslinked network. They showed good mechanical and thermal stability. The water uptakes of them were ca. 8.4-24.5%. Their proton conductivity was of the order of ca. 10-5-10-2 S/cm in the range of 30-80 °C, and the proton conductivity increased with improving the protonation ratio. AFM results disclosed the micro-phase separation of the hydrophilic proton-generating sites and the hydrophobic domains of Tf2N- ions. The resulting locally continuous hydrophilic clusters could provide proton transport channels to produce the high proton conductivity. This kind of polymer electrolyte membranes may have potential applications in PEFCs and other electrochemical fields.
机译：基于对带有末端乙烯基的超支化聚（酰胺基胺）的改性，成功制备了一系列新型的交联聚合物电解质膜。所述膜在交联网络中具有质子产生位点（即质子化的叔胺基团）和三氟甲磺酸酯（Tf 2 N-）的不同含量。它们表现出良好的机械和热稳定性。他们的摄水量约为。 8.4-24.5％。它们的质子电导率约为。在30-80°C范围内为10-5-10-2 S / cm，质子传导率随质子化率的提高而增加。 AFM结果揭示了亲水性质子生成位点和Tf2N-离子的疏水域的微相分离。所得的局部连续的亲水性簇可以提供质子传输通道以产生高质子传导性。这种聚合物电解质膜可能在PEFC和其他电化学领域中具有潜在的应用。

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