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Different-side-chain type anion exchange membranes for fuel cell and preparation method of membranes

An anion exchange membrane and fuel cell technology, which is applied in fuel cells, circuits, electrical components, etc., can solve the problems of high prices and restrictions on the promotion and development of proton exchange membrane fuel cells

Pending Publication Date: 2021-02-02
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most of the research is concentrated in the field of proton exchange membrane fuel cells, but the promotion and development of proton exchange membrane fuel cells are greatly limited due to the need to use expensive metals as catalysts.

Method used

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  • Different-side-chain type anion exchange membranes for fuel cell and preparation method of membranes
  • Different-side-chain type anion exchange membranes for fuel cell and preparation method of membranes
  • Different-side-chain type anion exchange membranes for fuel cell and preparation method of membranes

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preparation example Construction

[0034] The present invention also provides a preparation method of different side chain type anion exchange membranes for fuel cells, comprising the following steps:

[0035] Step 1: Dissolve imidazole-functionalized polyaryletherketone in a solvent to obtain a clear orange solution, add 1-allyl-3-methylimidazole chloride and stir for 8 hours, then add benzoyl peroxide at 80 degrees Stirred under the conditions for 3 hours, and discharged in distilled water to obtain a gray solid;

[0036] Step 2: Dissolve the gray solid obtained in the first step in tetrachloroethane, add benzoyl peroxide and N-bromosuccinimide and stir in an 80-degree oil bath for 5 hours, and discharge it in alcohol to obtain a light yellow color floc;

[0037] Step 3: dissolving the light yellow floc obtained in the second step in a solvent to obtain a clear orange solution;

[0038] Step 4: Add the solution obtained in Step 3 to 1-methylpyrrolidine and stir for 12 to 24 hours to obtain a dark yellow fil...

Embodiment 1

[0043] (1) Dissolve imidazole-functionalized polyaryletherketone in N-methylpyrrolidone (NMP) solvent (at this time, the molar ratio of methylhydroquinone monomer to allyl bisphenol S monomer is 7:3), and then To obtain a clear orange solution, add 1-allyl-3-methylimidazole chloride and stir for 8 hours, then add benzoyl peroxide and stir for 3 hours at 80°C, discharge into distilled water to obtain a gray solid;

[0044] (2) Dissolve the gray solid obtained in step (1) in tetrachloroethane, add benzoyl peroxide and N-bromosuccinimide and stir in an 80-degree oil bath for 5 hours, and discharge the material in alcohol to obtain yellow floc;

[0045](3) dissolving the yellow floc obtained in step (2) in a solvent, and then obtaining a clear orange solution;

[0046] (4) Add the solution obtained in step (3) to 1-methylpyrrolidine and stir for 12 to 24 hours to obtain a dark yellow film-forming liquid. The anion exchange membrane is based on methyl hydroquinone monomer and ally...

Embodiment 2

[0050] (1) Dissolve imidazole-functionalized polyaryletherketone in N-methylpyrrolidone (NMP) solvent (at this time, the molar ratio of methylhydroquinone monomer and allyl bisphenol S monomer is 5:5), and then To obtain a clear orange solution, add 1-allyl-3-methylimidazole chloride and stir for 8 hours, then add benzoyl peroxide and stir for 3 hours at 80°C, discharge into distilled water to obtain a gray solid;

[0051] (2) Dissolve the gray solid obtained in step (1) in tetrachloroethane, add benzoyl peroxide and N-bromosuccinimide and stir in an 80-degree oil bath for 5 hours, and discharge the material in alcohol to obtain yellow floc;

[0052] (3) dissolving the yellow floc obtained in step (2) in a solvent, and then obtaining a clear orange solution;

[0053] (4) Add benzoyl peroxide and 1-vinylimidazole to the solution obtained in step (3) and stir for 12 to 24 hours to obtain a dark yellow film-forming liquid. The molar ratio of bisphenol S monomer is different for...

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Abstract

The invention provides a different-side-chain type anion exchange membranes for a fuel cell and a preparation method of the anion exchange membranes, and belongs to the field of polymer chemistry andanion exchange membrane fuel cells. According to different molar ratios of monomers, the molar ratio of a methyl hydroquinone monomer to an allyl bisphenol S monomer is a:b (a and b are both integersof 1-9 and a+b is equal to 10); the invention also provides a preparation method of the different-side-chain type anion exchange membranes, which comprises the following steps: conducting polymerizingaccording to different molar ratios of monomers by utilizing nucleophilic polycondensation reaction to form polyaryletherketone containing different proportions of the methyl hydroquinone monomer tothe allyl bisphenol S-containing monomer, thereby preparing the different-side-chain type anion exchange membranes. The highest ionic conductivity of the different-side-chain type anion exchange membranes at 80 DEG C can reach 0.137 S / cm.

Description

technical field [0001] The invention belongs to the fields of polymer chemistry and anion-exchange membrane fuel cell, and in particular relates to an anion-exchange membrane with different side chains for a fuel cell and a preparation method thereof. Background technique [0002] In recent years, in order to pursue rapid economic development, people have overused fossil energy, causing energy depletion, environmental pollution and other problems. At this time, fuel cells, as a new type of renewable energy, have gradually entered the sight of researchers from various countries. At present, most of the researches are concentrated in the field of proton exchange membrane fuel cells, but the promotion and development of proton exchange membrane fuel cells is greatly limited because the catalyst needs to use expensive metals. In contrast, anion-exchange membrane fuel cells have the advantages of fast fuel oxidation rate, low liquid alcohol fuel permeability and the use of non-pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/23C08J5/22C08L81/06H01M8/1027H01M8/1072
CPCC08G75/23C08J5/2256H01M8/1027H01M8/1072C08J2381/06Y02E60/50
Inventor 倪宏哲杨凯徐晶美王哲迟晓雨陈文波
Owner CHANGCHUN UNIV OF TECH
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