Sulfonated polyarylether based on triphenylphosphine oxide structure unit and preparation method thereof

A technology of triphenylphosphine oxide and sulfonated polyarylether, which is applied in the field of sulfonated polyarylether based on triphenylphosphine oxide structural unit and its preparation, can solve the problems not involving sulfonated polyarylether, and achieve The synthesis method is simple, the thermal stability is good, and the effect of mild conditions
CN101445601AInactive Publication Date: 2009-06-03SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2009-06-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses sulfonated polyarylether based on a triphenylphosphine oxide structure unit and a preparation method thereof in the technical field of chemical industry. Sulfonated triphenylphosphine monomer, triphenylphosphine monomer and dihydroxyl monomer are used as raw materials to be polycondensed directly in polar solvent by the action of reaction accelerant to obtain a polymer with a structural formula as above, wherein, M is hydrogen ion, lithium ion, sodium ion, kalium ion, cesium ion or ammonium ion; when m is equal to 1, the polymer is a homopolymer containing sulfonated triphenylphosphine oxide; when m is more than 0 and less than 1, the polymer is the multipolymer containing the sulfonated triphenylphosphine oxide. The polymer has good thermal stability, mechanical property and solubility, large molecular weight and good compatibility with inorganic material and can be applied in proton exchange membrane fuel cell field.
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Description

technical field

[0001] The invention relates to a polymer in the technical field of chemical engineering and a preparation method thereof, in particular to a sulfonated polyarylether based on a triphenylphosphine oxide structural unit and a preparation method thereof. Background technique

[0002] Proton exchange membrane is the key material of proton exchange membrane fuel cell. The currently widely used Nafion perfluorinated membrane has some technical defects, such as low electrical conductivity, high methanol permeability, and high price when the temperature is high and the humidity is low. In recent years, the preparation of sulfonated non-fluorinated polyarylethers that can be used in proton exchange membranes has received extensive attention. Sulfonated polyarylether series polymers mainly include polyarylether ketone, polyarylether sulfone, polyphenylene ether, polyphenylene sulfide and their derivatives, which have excellent thermal stability, mechanical strength, ...

Claims

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