Cross-linking type polyaryl piperidine anion exchange membrane with main chain containing fluorine as well as preparation method and application of cross-linking type polyaryl piperidine anion exchange membrane

• Main Authors: CAI HONGYUN, YAO ZHONG, XIANG ZHANBO, XIA HONGYU, ZHANG CHAO
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention provides a cross-linking type polyaryl piperidine anion exchange membrane with a main chain containing fluorine and a preparation method and application thereof.The preparation method comprises the steps that an aromatic compound and perfluoroalkane serve as a polymer monomer main chain and are condensed with N-methyl piperidone under the catalytic action of superacid to obtain a polymer intermediate, and halide is introduced to form the membrane; the anion exchange membrane has excellent oxidation reduction resistance, high ion exchange capacity and spatial size stability, the stability of a membrane framework is guaranteed through the high swelling resistance of the anion exchange membrane, meanwhile, the anion exchange membrane has the advantages of being excellent in flexibility, long in service life and the like, and can be applied to the fields of flow batteries, alkaline fuel cells and the like. 本发明提供一种主链含氟的交联型聚芳基哌啶阴离子交换膜及其制备方法和应用，所述制备方法中使用芳香化合物以及全氟烷烃作为聚合物单体主链，在超强酸的催化作用下与N-甲基哌啶酮缩合得到聚合物中间体