材料科学
膜
侧链
化学工程
离子交换
氢氧化物
离子
电导率
亚甲基
高分子化学
有机化学
复合材料
聚合物
物理化学
化学
生物化学
工程类
作者
Shoutao Gong,Anmin Liu,Naeem Akhtar Qaisrani,Han Long,Minghao Yuan,Yanzhen Ren,Xiaoming Yan,Gaohong He,Fengxiang Zhang
标识
DOI:10.1021/acsami.4c03693
摘要
The introduction of hydrophobic side chain structures in anion exchange membranes (AEMs) to facilitate ion transport has been widely studied; however, low or moderate hydrophobic hydrocarbon and semifluorinated side chains are insufficient to induce a high degree of microphase separation. Herein, we design and prepare poly(aryl piperidinium) AEMs with completely methylene-free perfluorinated side chains, which can maximize the thermodynamic incompatibility between main- and side chains, thus enhancing microphase separation at medium ion exchange capacities (IECs). According to the molecular dynamics study, the methylene-free perfluorinated side chain leads to better hydration of cations. The hydroxide conductivity of the methylene-free perfluorinated side chain-grafted PAP-pF-1 membrane reaches 124.9 mS cm
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