Cationic polymer containing fused ring structure and preparation method and application thereof

By introducing fused ring structural units into the cationic polymer backbone, the problem of poor stability of AEMFC anion exchange membrane under high ion content was solved, and an anion exchange membrane with high conductivity and low water absorption was prepared, realizing efficient and stable operation of the membrane electrode.

CN116693811BActive Publication Date: 2026-05-29HEFEI UNIV OF TECH +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Filing Date
2023-06-07
Publication Date
2026-05-29

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Abstract

The application discloses a cationic polymer containing a fused ring structure and a preparation method and application thereof, and an anion exchange membrane based on the cationic polymer is prepared by using the cationic polymer containing a fused ring structure in a main chain. By introducing a fused ring structure element into the main chain of the cationic polymer, the interaction force between the formed polymer chains is increased by using the pi-pi interaction between the fused ring structures, the water absorption and swelling of the cationic polymer are inhibited, and thus the anti-swelling ability and the dimensional stability of the anion exchange membrane prepared from the cationic polymer are improved. In addition, by using the high reactivity of the fused ring structure monomer, the molecular weight of the cationic polymer is increased, and other monomers are copolymerized to regulate the performance of the cationic polymer, so that the anion exchange membrane prepared from the cationic polymer has excellent comprehensive performance, and is beneficial to the application in the fields of anion exchange membrane fuel cells and water electrolysis.
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