Sulfomated polyarylether containing conjugation structure, preparation method and intermediate

A technology of monomer and meaning, applied in the field of polyarylene ether, can solve the problems affecting the service life of PEMFC, instability of proton exchange membrane, easy cracking, etc., and achieve the effect of ensuring chemical stability, high strength and improving stability
CN1760233AInactive Publication Date: 2006-04-19GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2006-04-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A sulfonated polyarylether containing conjugated structure and its intermediate are disclosed. Its preparing process includes such steps as mixing diphenol monomer, difluoro monomer and anhydrous potassium carbonate in non-protonic polar solvent, reaction to obtain its intermediate, dissolving it in polar solvent, dripping the solution of chlorosulfonic acid, and reaction. Its advantages are high resistance to high temp and creep, strength, toughness, stability, hydroscopicity and proton exchange capacity.
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Description

technical field

[0001] The present invention relates to a sulfonated polyarylether, in particular to a sulfonated polyarylether containing a conjugated structure, in addition to a preparation method of the polymer, and further to an intermediate of the polymer That is, polyarylether with conjugated structure. Background technique

[0002] Fuel cells have outstanding advantages such as high energy conversion efficiency (40% to 60%), environmental friendliness, cleanliness, no pollution, and no noise. They are considered to be the preferred clean and efficient energy sources in the 21st century. Proton exchange membrane fuel cell (PEMFC) is called the fifth-generation fuel cell. In addition to the advantages of general fuel cells, it also has the advantages of rapid start-up at room temperature, no electrolyte loss, easy discharge of water, long life, specific power and Outstanding features such as higher specific energy. The proton exchange membrane is one of the key materi...

Claims

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