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Organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and preparation method of organic-inorganic composite membrane

A technology for sulfonated polyaryletherketone sulfone and sulfonated polyaryletherketone is applied in the field of organic-inorganic composite membranes and their preparation, and can solve the problems of poor compatibility, affecting the performance of proton exchange membranes, and lack of proton conductivity.

Active Publication Date: 2019-11-22
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of inorganic materials, such as poor solubility, poor compatibility, easy to form agglomeration, and no proton conductivity, seriously affect the performance of proton exchange membranes and limit the further application of organic-inorganic composite membranes.

Method used

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  • Organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and preparation method of organic-inorganic composite membrane
  • Organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and preparation method of organic-inorganic composite membrane
  • Organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and preparation method of organic-inorganic composite membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing an organic-inorganic proton exchange composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone polymer and Im-MOF-801, the specific steps are as follows:

[0032] (1) Weigh 0.5g of C-SPAEKS polymer into a beaker, add 10ml of NMP solvent, stir at room temperature to dissolve the polymer, and obtain a uniform solution. Among them, C-SPAEKS represents carboxyl-containing sulfonated polyarylether ketone sulfone; NMP represents N-methyl-2-pyrrolidone.

[0033] (2) Weigh 0.01g of Im-MOF-801 powder and add it to the homogeneous solution in step (1). The obtained mixed liquid was ultrasonically dispersed for 4 hours, and then stirred for 48 hours to obtain a film-forming liquid. Among them, Im-MOF-801 represents a metal organic framework material containing a coordinated imidazole; the mass fraction of Im-MOF-801 in the C-SPAEKS matrix in the film-forming solution is 2wt%.

[0034] (3) Cast the film-forming solution obtained...

Embodiment 2

[0045] (1) Weigh 0.5 g of C-SPAEKS polymer into a beaker, add 10 ml of NMP solvent, stir at room temperature to dissolve the polymer, and obtain a uniform solution. Among them, C-SPAEKS represents carboxyl-containing sulfonated polyarylether ketone sulfone; NMP represents N-methyl-2-pyrrolidone.

[0046] (2) Weigh 0.02g of Im-MOF-801 powder and add it to the homogeneous solution in step (1). The obtained mixed liquid was ultrasonically dispersed for 4 hours, and then stirred for 60 hours to obtain a film-forming liquid. Among them, Im-MOF-801 represents the metal organic framework material containing coordination imidazole; the mass fraction of Im-MOF-801 in the C-SPAEKS matrix in the film-forming solution is 4wt%.

[0047] (3) Cast the film-forming solution obtained in step (2) onto a clean glass plate, dry it at 80°C for 48 hours, cool it down to room temperature naturally, and remove the film in water to obtain C-SPAEKS / Im-MOF-801 Composite film.

[0048] (4) Soak the C-...

Embodiment 3

[0051] (1) Weigh 0.5 g of C-SPAEKS polymer into a beaker, add 10 ml of NMP solvent, stir at room temperature to dissolve the polymer, and obtain a uniform solution. Among them, C-SPAEKS represents carboxyl-containing sulfonated polyarylether ketone sulfone; NMP represents N-methyl-2-pyrrolidone.

[0052] (2) Weigh 0.03g of Im-MOF-801 powder and add it to the homogeneous solution in step (1). The obtained mixed liquid was ultrasonically dispersed for 4 hours, and then stirred for 72 hours to obtain a film-forming liquid. Among them, Im-MOF-801 represents a metal organic framework material containing a coordinated imidazole; the mass fraction of Im-MOF-801 in the C-SPAEKS matrix in the film-forming solution is 6 wt%.

[0053] (3) Cast the film-forming solution obtained in step (2) onto a clean glass plate, dry it at 80°C for 48 hours, cool it down to room temperature naturally, and remove the film in water to obtain C-SPAEKS / Im-MOF-801 Composite film.

[0054] (4) Soak the C-...

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Abstract

The invention discloses an organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and a preparation method of the organic-inorganic composite membrane. The invention belongs to the field of polymer chemistry and proton exchange membrane fuel cells. The exchange composite membrane takes carboxyl-containing sulfonated polyaryletherketone sulfone as a matrix and takes a metal organic framework Im-MOF-801 containing coordinated imidazole as a filler, the Im-MOF-801 filler contains a carboxyl functional group and is connected with a main chain of a matrix polymer through a hydrogen bond, and the composite membrane is prepared through a solution blending method. According to the method, the carboxyl-containing sulfonated polyaryletherketone sulfone is prepared by utilizing nucleophilic polycondensation reaction, the coordination imidazole-containing Im-MOF-801 is prepared by utilizing solvothermal reaction, and the organic-inorganic composite proton exchange membrane is prepared by utilizing the solution blending method. The maximum proton conductivity of the organic-inorganic composite proton exchange membrane at 90 DEG Ccan reach 0.128 Scm-1.

Description

technical field [0001] The invention belongs to the fields of polymer chemistry and proton exchange membrane fuel cells, and specifically relates to an organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and a preparation method thereof. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is a clean and environmentally friendly energy device with high energy density. Proton exchange membrane (PEM) is the core component of proton exchange membrane fuel cells, and its performance has an important impact on the service life of proton exchange membrane fuel cells. [0003] The polyaryletherketone sulfone modified by sulfonation has the ability to transport protons, and has received extensive research and attention in the field of fuel cell proton exchange membranes. The proton conductivity of sulfonated poly(aryl ether ketone sulfone) is mainly affected by the sulfonic acid group, and it ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1039H01M8/1048H01M8/1069H01M8/1086C08G75/23
CPCC08G75/23H01M8/1039H01M8/1048H01M8/1069H01M8/1086H01M2008/1095Y02E60/50
Inventor 徐晶美张振国杨凯杨旭东王哲任佳会孟令鑫赵鹏云
Owner CHANGCHUN UNIV OF TECH
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