Anti-swelling amphoteric ion exchange resin, preparation method, ion exchange membrane and application

• Main Authors: LIU PINYANG, FANG LIANG, GAN ZHIQIANG, CHAI MAORONG, WANG FUYAO, TANG HAOLIN, LIU ZHEN, ZHOU MINGZHENG, XIA FENGJIE, LI DAOXI
• Format: Patent
• Language: Chinese; English
• Published: 18.11.2022
• Subjects: APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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

The invention belongs to the technical field of ion exchange membranes, and particularly relates to anti-swelling amphoteric ion exchange resin, a preparation method, an ion exchange membrane and application. The invention provides anti-swelling amphoteric ion exchange resin, the structure of which is shown in the specification, x, y and z are positive integers of 1-200, m is an integer of 0-4, n is an integer of 0-3, and l is an integer of 0-2. The perfluoro main chain in the resin can improve the chemical stability of the resin, and the hydrophilic long side chain structure is beneficial to microphase separation, construction of an ion channel and improvement of proton conductivity. Besides, the quaternary amination group and the sulfonic acid group in the resin jointly form the amphoteric ion exchange resin, and the water absorption capacity of the sulfonic acid group is weakened due to mutual attraction of static electricity between positive and negative ions, so that the amphoteric ion exchange membrane