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首页> 外文期刊>Journal of Applied Polymer Science >Novel anion exchange membrane with low ionic resistance based on chloromethylated/quaternized-grafted polystyrene for energy efficient electromembrane processes
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Novel anion exchange membrane with low ionic resistance based on chloromethylated/quaternized-grafted polystyrene for energy efficient electromembrane processes

机译：基于氯甲基化/季铵化聚苯乙烯的基于氯甲基化/季铵化聚苯乙烯的新型阴离子交换膜

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摘要

A novel anion-exchange membrane has been manufactured by chloromethylation and subsequent quaternization of polystyrene within a graft copolymer films based on UV-oxidized polymethylpentene. Particular attention is given to the kinetics of chloromethylation and the influence of the reaction conditions on the properties of the anion-exchange membranes. By means of variation of the polystyrene content and its crosslinking degree we have obtained membranes that have an ion-exchange capacity from 1.1 to 2.9 mmole g(-1), anion transport numbers between 91.0 and 95.5% and specific ionic conductivities (sigma Cl-25 degrees) ranging from 2 to 25 mS cm(-1). The developed membranes due to their low thickness and high conductivities have a remarkably low surface ionic resistance of around 0.6 omega cm(2). It was calculated that the use of the developed materials will increase the efficiency of reverse electrodialysis energy production by 8-10% compared to the state of the art membranes. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48656.
机译：通过基于UV氧化聚甲基戊烯的接枝共聚物膜内的氯甲基化和随后的聚苯乙烯季铵化制造了一种新的阴离子交换膜。特别注意氯甲基化的动力学以及反应条件对阴离子交换膜性能的影响。通过聚苯乙烯含量的变化及其交联程度，我们已经获得了离子交换能力的膜，其离子交换能力为1.1-2.9毫摩尔G（-1），阴离子传输数在91.0至95.5％和特异性离子传导中（Sigma Cl- 25度）范围为2至25 ms cm（-1）。由于它们的低厚度和高导体引起的发育膜具有明显的低表面离子电阻约为0.6ωcm（2）。计算出，与现有技术相比，使用发发材料的使用将使反向电渗析能量产生的效率产生8-10％。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,137,48656。

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