静电纺丝聚（苯乙烯-共-乙烯基苄基氯-共-丙烯腈）纳米纤维垫作为用于燃料电池应用的阴离子交换膜

Electrospun Poly(Styrene-Co-Vinylbenzyl Chloride-Co-Acrylonitrile) Nanofiber Mat as an Anion Exchange Membrane for Fuel Cell Applications.

作者信息

Kang Dongho, Lee Ji Su, Yoon Hyon Hee, Sharma Chinta Mani, Das Gautam, Yoon Young Soo

机构信息

Department of Chemical and Biological Engineering, Gachon University, Seongnam 461-701, Korea.

Department of Chemistry, Biswanath College, Biwanath Charialli 784176, India.

出版信息

Polymers (Basel). 2022 Aug 9;14(16):3236. doi: 10.3390/polym14163236.

DOI:10.3390/polym14163236

PMID:36015495

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9416048/

Abstract

A nanofiber mat of styrene-co-vinylbenzyl chloride-co-acrylonitrile copolymer as an anion exchange membrane (AEM) was synthesized via the electrospinning of organic reaction mixtures. The synthesized membranes were characterized using FT-IR spectroscopy for structural analysis. The AEM demonstrated a high ionic conductivity mainly due to the phase segregation in the membrane structure, as analyzed by transmission electron microscopy (TEM). The membrane properties such as water uptake, swelling ratio, and ion exchange capacity, as well as ionic conductivity, varied with the chemical composition. With the molar ratio of styrene, vinylbenzyl chloride, and acrylonitrile at 3:5:2, the highest ionic conductivity of 0.214 S cm at 80 °C was observed. Additionally, the AEM retained 94% of original conductivity after 72 h of soaking in 1 M KOH solution.

摘要

通过对有机反应混合物进行静电纺丝，合成了一种由苯乙烯-共-乙烯基苄基氯-共-丙烯腈共聚物制成的纳米纤维垫作为阴离子交换膜（AEM）。使用傅里叶变换红外光谱对合成的膜进行表征以进行结构分析。如通过透射电子显微镜（TEM）分析所示，该阴离子交换膜表现出高离子电导率，这主要归因于膜结构中的相分离。膜的性能，如水吸收、溶胀率、离子交换容量以及离子电导率，会随化学组成而变化。当苯乙烯、乙烯基苄基氯和丙烯腈的摩尔比为3:5:2时，在80°C下观察到最高离子电导率为0.214 S/cm。此外，该阴离子交换膜在1 M KOH溶液中浸泡72小时后保留了原始电导率的94%。