聚电解质
膜
自愈水凝胶
离子键合
化学
化学工程
离子运输机
离子
单体
聚合物
阳离子聚合
溶剂化
离子交换
共聚物
高分子化学
离子电导率
材料科学
纳米技术
电解质
有机化学
电极
物理化学
生物化学
工程类
作者
Wenxu Zhang,Ye Liu,Xiaohui Liu,James L. Horan,Ying Jin,Xiaoming Ren,S. Piril Ertem,Söenke Seifert,Matthew W. Liberatore,Andrew M. Herring,E. Bryan Coughlin
摘要
ABSTRACT The selective transport of ions has crucial importance in biological systems as well as modern‐day energy devices, such as batteries and fuel cells, and water purification membranes. Control over ion movement can be exerted by ligation, ion channel dimensions, solvation, and electrostatic interactions. Polyelectrolyte hydrogels can provide aligned pathways for counter ion transport but lack mechanical integrity, while polyelectrolyte membranes typically suffer from the absence of an ion transport channel network. To develop polymer membranes for improved ion transport, we present the design of a novel material that combines the advantages of aligned pathways found in polyelectrolyte hydrogel and mechanical robustness in conventional membranes. The ionic species were organized via controlled copolymerization of a quaternizable monomer. Additionally, dimensional stability was then incorporated through a cast/crosslinking method to lock in the network of connected cationic groups. This strategy resulted in dramatically enhanced ion transport, as characterized by ionic conductivities (>80 mS/cm for Cl – , and ∼200 mS/cm for OH – ). © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018 , 56 , 618–625
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