Sulfonated poly aryl ether ketone cross-linking membrane containing thioether keys and preparing method thereof

A technology of sulfonated polyaryletherketone and propenylsulfonated polyarylether, which is applied in the field of sulfonated polyaryletherketone cross-linked membrane and its preparation, can solve the problems that it is difficult to have a sufficiently high proton conductivity and cannot be used. Achieve excellent oxidation stability and good dimensional stability

Inactive Publication Date: 2016-05-25
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fuel cells have many requirements for polymer electrolyte membranes, which are difficult to meet with a single-structure polymer electrolyte membrane
For example, perfluorosulfonic acid membrane has the best overall performance under low temperature and high humidity conditions, but it cannot be used under high temperature and low humidity conditio...

Method used

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  • Sulfonated poly aryl ether ketone cross-linking membrane containing thioether keys and preparing method thereof
  • Sulfonated poly aryl ether ketone cross-linking membrane containing thioether keys and preparing method thereof
  • Sulfonated poly aryl ether ketone cross-linking membrane containing thioether keys and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In a three-necked flask equipped with a mechanical stirrer, a water dispenser, a thermometer, a condenser tube, and nitrogen protection, add 0.02mol of bisphenol A, 0.08mol of diallyl bisphenol A, and 0.02mol of 4,4'- Difluorobenzophenone, 0.08mol of 3,3'-sodium disulfonate-4,4'-difluorobenzophenone, 0.11mol of potassium carbonate as a salt-forming agent, and N-methylpyrrolidone as a solvent, Toluene is used as the water-carrying agent, and the solid content is 20%. Bring water at 140°C for 3 hours, then distill off the toluene, raise the temperature to 180°C and continue the reaction for 6 hours. After the reaction was complete, the reactant was poured into distilled water to form a light yellow strip solid, which was pulverized into a fine powder with a pulverizer, washed 5 times with acetone, and then washed 5 times with distilled water. Dry it in an oven at 80°C to obtain the propylene group-containing sulfonated polyaryletherketone material.

[0038] The above pr...

Embodiment 2

[0040] In a three-neck flask equipped with a mechanical stirrer, a water dispenser, a thermometer, a condenser tube, and nitrogen protection, add 0.1mol of diallyl bisphenol A, 0.04mol of 4,4'-difluorobenzophenone, and 0.06 mol of 3,3'-sodium disulfonate-4,4'-difluorobenzophenone, with 0.115mol of potassium carbonate as a salt-forming agent, sulfolane as a solvent, and xylene as a water-carrying agent, with a solid content of 30%. Bring water at 140°C for 3 hours, then distill off the xylene, then raise the temperature to 180°C to continue the reaction for 6 hours. After the reaction was complete, the reactant was poured into distilled water to form a light yellow strip solid, which was pulverized into a fine powder with a pulverizer, washed 5 times with acetone, and then washed 5 times with distilled water. Dry it in an oven at 80°C to obtain the propylene group-containing sulfonated polyaryletherketone material.

[0041] The acrylic sulfonated polyaryletherketone matrix is ​...

Embodiment 3

[0043] In a three-necked flask equipped with a mechanical stirrer, a water dispenser, a thermometer, a condenser tube, and nitrogen protection, add 0.04mol of tetramethylbiphenol, 0.06mol of diallyl bisphenol A, and 0.05mol of 4 , 4'-difluorobenzophenone, 0.05mol of 3,3'-sodium disulfonate-4,4'-difluorobenzophenone, 0.12mol of potassium carbonate as a salt-forming agent, and dimethylformaldehyde Amide is used as solvent, toluene is used as water carrier, and the solid content is 20%. Bring water at 130°C for 3 hours, then distill off the toluene, raise the temperature to 150°C and continue the reaction for 10 hours. After the reaction was complete, the reactant was poured into distilled water to form a light yellow strip solid, which was pulverized into a fine powder with a pulverizer, washed 5 times with acetone, and then washed 5 times with distilled water. Dry it in an oven at 80°C to obtain a propylene group-containing sulfonated polyaryletherketone material.

[0044] Th...

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Abstract

The invention discloses a sulfonated poly aryl ether ketone cross-linking membrane containing thioether keys and a preparing method thereof. A bisphenol monomer, diallyl bisphenol A, 4,4'-difluoro diphenyl methanone and 3,3'-sodium sulfonate-4,4'-difluoro diphenyl methanone are utilized for being subjected to condensation polymerization to generate sulfonated poly aryl ether ketone containing allyl; then a cross-linking agent is added, and the sulfonated poly aryl ether ketone cross-linking membrane containing the thioether keys are generated under catalysis of benzoyl peroxide. The prepared sulfonated poly aryl ether ketone cross-linking membrane containing the thioether keys has better size stability, low methyl alcohol permeability, good proton conduction performance and high antioxidant stability, and the cross-linking membrane has a potential application prospect in the field of fuel cell polymer electrolyte membranes.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a sulfonated polyaryletherketone crosslinked membrane containing sulfide bonds and a preparation method thereof. Background technique [0002] As the core component of the fuel cell, the polymer electrolyte membrane not only plays the role of conducting ions from the anode to the cathode, but also isolates fuel and oxidant to prevent short circuit of the battery. The performance of the polymer electrolyte membrane directly affects the current density, power density and service life of the fuel cell. As a new energy material, high-performance polymer electrolyte membrane has attracted extensive research attention in the scientific and technological circles in recent years. [0003] Polymer electrolyte membranes with aromatic polymers as the main chain have aroused the interest of scientists. They are not only low in cost, easy to produce on a large scale, but also have relatively...

Claims

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Application Information

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IPC IPC(8): C08G65/40C08G65/48C08J5/18H01M8/1018H01M8/1069
CPCC08G65/40C08G65/48C08J5/18C08J2371/10H01M8/1018H01M8/1069Y02E60/50
Inventor 李野芦艾盖方圆余凤湄张倩孙素明
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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