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Alkyl long side chain-containing sulfonated polyaryletherketone sulfone and metal organic framework blended proton exchange membrane and preparation method thereof

A sulfonated polyaryletherketone sulfone, metal organic framework technology, applied in electrochemical generators, fuel cells, electrical components, etc., can solve the problems of loss of proton conductivity, high cost, and decline

Pending Publication Date: 2021-07-02
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most successful commercialization is the perfluorosulfonic acid membrane (Nafion) developed by Dupont Company of the United States. Although the Nafion membrane has the advantages of high proton conductivity and good stability, the cost of the Nafion membrane is high, and the proton conductivity has a high impact on water. showed a strong dependence, and when the operating temperature of PEMFCs exceeds 80 °C, its proton conductivity drops sharply due to the loss of water

Method used

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  • Alkyl long side chain-containing sulfonated polyaryletherketone sulfone and metal organic framework blended proton exchange membrane and preparation method thereof
  • Alkyl long side chain-containing sulfonated polyaryletherketone sulfone and metal organic framework blended proton exchange membrane and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] A method for preparing a composite proton exchange membrane blended with sulfonated polyaryl ether ketone sulfone containing alkyl long side chains and imidazole-modified MOF-801 for fuel cells, the specific steps are as follows:

[0029] (1) Under the protection of nitrogen atmosphere, 0.003 mol of carboxyl-containing bisphenol monomer, 0.0105 mol of 4,4'-difluorobenzophenone, 0.012 mol of allyl bisphenol S and 0.0045 mol of 4 ,4'--Sulfonated dichlorodiphenyl sulfone was added to a 100 ml three-necked flask and mixed evenly, and salt-forming agent, water-carrying agent and solvent were added to the above-mentioned three-necked flask, and the temperature was 110~140 o C with water backflow for 4 hours, after the water-carrying agent is released, the temperature is raised to 175 oC, continue to stir and react for 5.5 hours to obtain sulfonated polyaryletherketone sulfone containing carboxyl and double bonds, wherein the carboxyl-containing bisphenol monomer is 4-carboxyp...

Embodiment 2

[0037] (1) Under the protection of nitrogen atmosphere, 0.003 mol of carboxyl-containing bisphenol monomer, 0.0105 mol of 4,4'-difluorobenzophenone, 0.012 mol of allyl bisphenol S and 0.0045 mol of 4 ,4'--Sulfonated dichlorodiphenyl sulfone was added to a 100 ml three-necked flask and mixed evenly, then salt-forming agent, water-carrying agent and solvent were added to the above-mentioned three-necked flask, and water was refluxed at 110~140°C for 4 hours. After the water potion is released, raise the temperature to 175 o C, continue to stir and react for 5.5 hours to obtain sulfonated polyaryletherketone sulfone containing carboxyl and double bonds, wherein the carboxyl-containing bisphenol monomer is 4-carboxyphenylhydroquinone, and the salt-forming agent is anhydrous carbonic acid Potassium, the water-carrying agent is toluene, and the solvent is sulfolane;

[0038] (2) Weigh 1 mmol of zirconium oxychloride, 1 mmol of fumaric acid, add 4 ml of DMF, 0.7 ml of formic acid, a...

Embodiment 3

[0045] (1) Under the protection of nitrogen atmosphere, 0.003 mol of carboxyl-containing bisphenol monomer, 0.0105 mol of 4,4'-difluorobenzophenone, 0.012 mol of allyl bisphenol S and 0.0045 mol of 4 ,4'--Sulfonated dichlorodiphenyl sulfone was added to a 100 ml three-necked flask and mixed evenly, then salt-forming agent, water-carrying agent and solvent were added to the above-mentioned three-necked flask, and water was refluxed at 110~140°C for 4 hours. After the water potion is released, raise the temperature to 175 o C, continue to stir and react for 5.5 hours to obtain sulfonated polyaryletherketone sulfone containing carboxyl and double bonds, wherein the carboxyl-containing bisphenol monomer is 4-carboxyphenylhydroquinone, and the salt-forming agent is anhydrous carbonic acid Potassium, the water-carrying agent is toluene, and the solvent is sulfolane;

[0046] (2) Weigh 1 mmol of zirconium oxychloride, 1 mmol of fumaric acid, add 4 ml of DMF, 0.7 ml of formic acid, a...

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Abstract

The invention discloses an alkyl long side chain-containing sulfonated polyaryletherketone sulfone and metal organic framework blended proton exchange membrane and a preparation method thereof, an alkyl long side chain with a sulfonic acid group is added to construct a hydrophilic / hydrophobic microphase separation structure, and then a metal organic framework is added as an organic-inorganic filler, the rigid framework of MOFs can restrain the movement of a polymer chain and enhance the dimensional stability of the composite membrane, and a hydrogen bond network in the framework can also provide a channel for proton migration and promote proton transmission. The specific composition of the hybrid membrane is as follows: sulfonated polyaryletherketone sulfone (C-SPAEKS-DBS) containing carboxyl and double bonds is taken as an organic matrix, 2-acrylamide-2-methylpropanesulfonic acid (AMPS) is taken as a side chain, Im-MOF-801 is taken as an organic-inorganic filler, and experiments show that the thickness of the prepared hybrid membrane is 75-90 [mu]m, the hybrid membrane shows excellent proton conductivity, and the hybrid membrane can be applied to the field of proton exchange membrane preparation. Compared with pure C-SPAEKS-DBS-AMPS (the temperature is 0.0487 S / cm<-1> at the 30 DEG C and 0.0809 S / cm<-1> at the 80 DEG C) and C-SPAEKS-DBS-AMPS-0. 5% Im-MOF-801 (the temperature is 0.1205 S / cm<-1> at the 30 DEG C and the temperature is 0.1992 S / cm<-1> at the 80 DEG C), the temperature is greatly improved and is about 2.5 times that of a pure membrane.

Description

technical field [0001] The research field of this invention is macromolecule chemistry and functional membrane material, which is embodied as a proton exchange membrane blended with alkyl long side chain sulfonated polyarylether ketone sulfone and metal organic framework and its preparation method. Background technique [0002] A fuel cell is a clean electrochemical device that converts chemical energy into electrical energy. It has the advantages of efficient energy conversion and near zero emission, so it is favored by many researchers. At present, the world is facing problems such as energy shortage and environmental pollution. As a clean energy source, fuel cells can help us solve some problems of dependence on non-renewable energy sources and environmental damage. [0003] The most widely used fuel cell is the proton exchange membrane fuel cell (Proton Exchange Membrane Fuel Cell, PEMFC). As one of the key components of PEMFC, proton exchange membranes (PEMs) play a ro...

Claims

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Application Information

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IPC IPC(8): H01M8/1044H01M8/1072C08G75/23C08G83/00
CPCH01M8/1044H01M8/1072C08G75/23C08G83/008Y02E60/50
Inventor 徐晶美陈璇巨盟池张振国任佳会张宇峰王哲
Owner CHANGCHUN UNIV OF TECH
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