Polyolefin anion exchange membrane based on block structure and preparation method thereof

An anion-exchange membrane and polyolefin technology, applied in fuel cells, electrochemical generators, electrical components, etc., can solve the problems of uncontrollable distribution of ion-conducting groups, limit ion conductivity, and affect service life, etc., to improve chemical Effects of Stability and Mechanical Strength
CN110760041AActive Publication Date: 2020-02-07DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2020-02-07

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Abstract

The invention discloses a polyolefin anion exchange membrane based on a block structure and a preparation method thereof, and belongs to the technical field of alkaline anion exchange membranes. A polyolefin block main chain membrane material with good solubility and stability is synthesized through a coordination polymerization method, and then a polymer is directly subjected to a click reactionby taking terminal olefinic double bonds of a main chain as grafting sites to introduce nitrogen-containing sulfhydryl groups, and after a quaternization reaction, a hydrogenation reaction, ion exchange and membrane casting are carried out to obtain a 'crystalline-non-crystalline' membrane material. The prepared anion exchange membrane has excellent alkali stability and ion conductivity, and can be applied to alkaline fuel cells.
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Description

technical field

[0001] The invention belongs to the technical field of basic anion exchange membranes, and relates to a polyolefin anion exchange membrane with a block structure and a preparation method thereof. Background technique

[0002] With the increasingly severe global environmental and energy problems, fuel cells, as a new type of power generation device, have attracted widespread attention because of their advantages such as wide range of fuel sources, high efficiency, low or even zero emissions. (Chinese patent, CN105924587A; CN 104861188A;) Alkaline anion exchange membrane fuel cell is a kind of fuel cell. Conducive to water balance, relatively low cost and other advantages. (Ren, X.M.; Price. S.C.; Jackson, A.C.; Pomerantz, N.; Beyer, F.L.ACS Appl. Mater. Interfaces, 2014, 6, 13330-13333.) The advantage of low cost comes from the basic anion exchange membrane fuel Batteries can use non-noble metals as catalysts, which is one of their main advantages.

[0003] ...

Claims

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