Sulfonated fluorine-containing poly-arylether (arone) and its preparing method and use

A technology for sulfonating fluorene-containing polyarylethers and polyarylethers, which is applied in the field of sulfonated fluorene-containing polyarylethers (ketones) and its preparation and application, and can solve the problems of easy breakage of ether bonds, reduction of chemical stability and service life, etc. problem, to achieve the effect of prolonging service life, improving chemical stability and reducing cost
CN1621431AInactive Publication Date: 2005-06-01SUN YAT SEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUN YAT SEN UNIV
Publication Date
2005-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to one kind of sulfonated fluorene-containing polyaryl ether (ketone) and its application in preparing proton exchanging film. The sulfonated fluorine-containing polyaryl ether (ketone) may be prepared through polymerization of 9, 9-(4, 4-dihydroxyphenyl) fluorene and chloric or fluorous arone (arene) to form polyaryl ether (ketone); and the subsequent sulfonation with chlorosulfonic acid in the controlled consumption for controlled product sulfonation degree. The sulfonated fluorine-containing polyaryl ether (ketone) may be dissolved in different polar solvents before being cast to form single-component film, or be mixed with other polymer material for preparing composite film, or be mixed with heteropoly acid and other inorganic matter for preparing hetero film; and all these kinds of film have the advantages of low cost, high stability, high water absorption, small equivalent molecular weight, etc. and are expected to find use in fuel cell.
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Description

technical field

[0001] The invention relates to a class of sulfonated fluorene-containing polyarylethers (ketones), a preparation method thereof and their application in the preparation of proton exchange membranes. Background technique

[0002] Fuel cells have outstanding advantages such as high energy conversion efficiency, environmental friendliness, and no noise. They are considered to be the preferred energy source in the 21st century, and have broad application prospects in aerospace, military, energy, transportation and other fields. 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. Proton exchange membrane (PEM) is one of the core components of PEMFC, and its performance is directly relat...

Claims

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