• 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 >Hybrid anion exchange membranes with adjustable ion transport channels designed by compounding SEBS and homo-polystyrene
【24h】

Hybrid anion exchange membranes with adjustable ion transport channels designed by compounding SEBS and homo-polystyrene

机译：杂化阴离子交换膜，具有通过复合SEBS和HOMO-聚苯乙烯设计的可调节离子输送通道

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

Hybrid anion exchange membranes (AEMs) were prepared via chemically functionalizing and crosslinking poly(styrene-b-[ethylene-co-butylene]-b-styrene) (SEBS) copolymers and low molecular weight homo-polystyrene (hPS). Via sequential chloromethylation, crosslinking, quaternization, and alkalization, a series of hPS/SEBS AEMs were obtained with varying content of hPS. Systematic structural, morphological, mechanical, absorption, and transport measurements reveal that these properties depend on the total PS content in the membranes. Particularly, increasing total PS content causes (a) PS domains in the AEMs transition the cylindrical morphology to lamella-like morphology with comparable correlation length; (b) Young's modulus, water uptake, swelling ratio, ionic exchange capacity and ionic conductivity of the AEMs, and T-g of PS phase increase. In addition, the alkaline stability of the hPS/SEBS AEMs is also improved by addition of hPS. These findings suggest that the proposed method can develop high performance SEBS AEMs that are suitable for fuel cell applications.
机译：通过化学功能化和交联聚（苯乙烯-b-[乙烯-共丁烯]-b-苯乙烯）（SEBS）共聚物和低分子量均聚聚苯乙烯（hPS），制备了杂化阴离子交换膜（AEMs）。通过顺序氯甲基化、交联、季铵化和碱化，获得了一系列不同hPS含量的hPS/SEBS AEM。系统的结构、形态、力学、吸收和传输测量表明，这些性能取决于膜中PS的总含量。特别是，总PS含量的增加导致（a）AEMs中的PS结构域从柱状形态转变为具有可比相关长度的片状形态；（b） AEMs的杨氏模量、吸水率、溶胀率、离子交换容量和离子电导率以及PS相的T-g增加。此外，hPS/SEBS AEMs的碱性稳定性也通过添加hPS得到改善。这些发现表明，所提出的方法可以开发出适用于燃料电池应用的高性能SEBS AEMs。

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