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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Alkaline stable imidazolium-based ionomers containing poly(arylene ether sulfone) side chains for alkaline anion exchange membranes
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Alkaline stable imidazolium-based ionomers containing poly(arylene ether sulfone) side chains for alkaline anion exchange membranes

机译：含聚（亚芳基醚砜）侧链的碱性稳定的基于咪唑鎓的离聚物，用于碱性阴离子交换膜

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摘要

Solvent processable anion exchange membranes (AEMs) containing imidazolium cation and poly(aryiene ether sulfone) side chains were prepared via the ionization of poly(4-vinylbenzyl chloride)-graft-poly(arylene ether sulfone) copolymers, and followed by anion exchange with hydroxide ions. The ionized copolymers produced ductile, transparent membranes which possess a relatively high ionic conductivity (up to 1.6 × 10~(-2) S cm~(-1) at room temperature). The yielded membranes are soluble in polar aprotic solvents, such as DMSO and DMF, while insoluble in water and methanol. The synthesized AEMs show good alkaline stability in 1 M KOH at 60 °C for 20 days, as well as high dimensional and thermal stability. These results should pave way to the practical application of this kind of AEM in alkaline fuel cells.
机译：通过聚（4-乙烯基苄基氯）-接枝-聚（亚芳基醚砜）共聚物的电离，然后与有机硅进行阴离子交换，制备了含咪唑鎓阳离子和聚（芳基醚砜）侧链的可溶剂处理的阴离子交换膜（AEM）。氢氧根离子离子化的共聚物产生的延展性，透明膜具有较高的离子电导率（在室温下可达1.6×10〜（-2）S cm〜（-1））。所得的膜可溶于极性非质子溶剂，例如DMSO和DMF，而不溶于水和甲醇。合成的AEM在60°C的1 M KOH中20天显示出良好的碱性稳定性，以及高尺寸和热稳定性。这些结果应为这种AEM在碱性燃料电池中的实际应用铺平道路。

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