Imidazole side chain type anion exchange membrane for fuel cells and preparation method of imidazole side chain type anion exchange membrane

An anion exchange membrane, fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as high price and restricting the promotion and development of proton exchange membrane fuel cells

Active Publication Date: 2020-02-07
华氢(广东)新能源科技有限公司
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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

Method used

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  • Imidazole side chain type anion exchange membrane for fuel cells and preparation method of imidazole side chain type anion exchange membrane
  • Imidazole side chain type anion exchange membrane for fuel cells and preparation method of imidazole side chain type anion exchange membrane
  • Imidazole side chain type anion exchange membrane for fuel cells and preparation method of imidazole side chain type anion exchange membrane

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preparation example Construction

[0034] The present invention also provides a kind of preparation method of imidazole side chain type anion exchange membrane for fuel cell, comprises as follows:

[0035] Step 1: Dissolve imidazole-functionalized polyaryl ether ketone sulfone 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 Stirred under the condition of 3 hours for 3 hours, the material was 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 benzoyl peroxide and 1-vinylimidazole to the solution obtained in step 3 and stir for 12 ...

Embodiment 1

[0043] (1) Dissolve imidazole-functionalized polyaryl ether ketone sulfone in N-methylpyrrolidone (NMP) solvent (at this time, the molar ratio of methyl hydroquinone monomer to allyl bisphenol S monomer is 5:5), 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 under the condition of 80 degrees, 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 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 bisphe...

Embodiment 2

[0050] (1) Dissolve imidazole-functionalized polyaryl ether ketone sulfone in N-methylpyrrolidone (NMP) solvent (at this time, the molar ratio of trimethylhydroquinone monomer to allyl bisphenol S monomer is 3:7) , 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 degrees, and discharge in 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 m...

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Abstract

The present invention provides an imidazole side chain type anion exchange membrane for fuel cells and a preparation method of the imidazole side chain type anion exchange membrane, and belongs to thefields of polymer chemistry and anion exchange membrane fuel cells. The anion exchange membrane is characterized in according to different monomer molar ratio: a molar ratio of a methyl hydroquinonemonomer to an allyl bisphenol S monomer is a:b (a and b are each an integer of 1-9, and a + b is 10). The present invention also provides the preparation method of the imidazole side chain type anionexchange membrane. The method uses a nucleophilic polycondensation reaction to conduct polymerizing according to different monomer molar ratios to form poly(aryl ether sulfone ketone) with different proportions containing the methyl hydroquinone monomer and allyl bisphenol S monomer so as to prepare the imidazole side chain type anion exchange membrane. The imidazole side chain type anion exchangemembrane has highest ion conductivity of 0.157 S/cm at a temperature of 80 DEG C.

Description

technical field [0001] The invention belongs to the fields of polymer chemistry and anion-exchange membrane fuel cells, and in particular relates to an imidazole side-chain type anion-exchange membrane for fuel cells 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-pre...

Claims

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Application Information

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IPC IPC(8): C08F285/00C08F226/06C08J5/22H01M8/1018H01M8/1072C08L51/00
CPCC08F285/00C08J5/2231H01M8/1018H01M8/1072C08J2351/00C08F226/06Y02E60/50
Inventor 倪宏哲杨凯徐晶美王哲张振国水天恩
Owner 华氢(广东)新能源科技有限公司
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