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Phthalazinone-containing disulfonated poly(arylene thioether phosphine oxide), and preparation method and application thereof

A technology for disulfonated polyarylene sulfide and naphthalenone, which is applied in the field of disulfonated polyarylene sulfide phosphine oxide and its preparation, can solve problems such as dimensional stability and oxidation resistance that need to be improved, and achieve improved Oxidative stability, low swelling, good high temperature oxidation resistance

Active Publication Date: 2019-10-22
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its dimensional stability and oxidation resistance under high temperature and low humidity conditions need to be improved.

Method used

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  • Phthalazinone-containing disulfonated poly(arylene thioether phosphine oxide), and preparation method and application thereof
  • Phthalazinone-containing disulfonated poly(arylene thioether phosphine oxide), and preparation method and application thereof
  • Phthalazinone-containing disulfonated poly(arylene thioether phosphine oxide), and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] with N 2 Inlet air duct, spherical condenser, water separator, stirring rod, N 2 Add 0.7629g (3.0mmol) 4-(4′-mercapto)phenyl-2,3-naphthalazinone, 0.6128g (1.95mmol) bis(4-halogen Phenyl)phenylphosphine oxide, 0.5443g (1.05mmol) 3-sodium sulfonate-4-halophenyl-3'-sulfonate phenyl-4"-halophenylphosphine oxide, and 0.4561g (3.3mmol ) Anhydrous potassium carbonate. After passing nitrogen for about 15 minutes, add 8 mL of DMAc reaction solvent and 8 mL of toluene (except toluene in the water separator), and the water in the reaction system is brought out by heating and refluxing with toluene at 150 ° C, and drained after 4 hours For the toluene in the reaction system, the temperature was raised to 160°C to continue the reaction until the viscosity of the reaction polymer increased to a certain extent. After the temperature was lowered to 120°C, the reactant was poured into 300mL deionized water, and stirred while pouring to obtain a shallow Yellow filamentous polymer, soak...

Embodiment 2

[0061] with N 2 Inlet air duct, spherical condenser, water separator, stirring rod, N 2 Add 0.7629g (3.0mmol) 4-(4′-mercapto)phenyl-2,3-naphthalazinone, 0.5657g (1.8mmol) bis(4-halogen Phenyl)phenylphosphine oxide, 0.6220g (1.2mmol) 3-sodium sulfonate-4-halophenyl-3'-sulfonate phenyl-4"-halophenylphosphine oxide, and 0.4561g (3.3mmol ) anhydrous potassium carbonate. After passing nitrogen for about 15 minutes, add 8 mL of DMAc reaction solvent and 8 mL of toluene (except for toluene in the water trap), and heat the water in the reaction system to reflux at 150 ° C and take it out through toluene, and drain it after 4 hours Toluene, the temperature is increased to 160°C to continue the reaction until the viscosity of the reaction polymer increases to a certain extent. After the temperature is lowered to 120°C, the reactant is poured into 300mL deionized water, and stirred while pouring to obtain a light yellow filament Polymer, soaked in hot water to remove inorganic salts th...

Embodiment 3

[0064] with N 2 Inlet air duct, spherical condenser, water separator, stirring rod, N 2 Add 0.7629g (3.0mmol) 4-(4′-mercapto)phenyl-2,3-naphthyridine, 0.5185g (1.65mmol) bis(4-halogen Phenyl)phenylphosphine oxide, 0.6998g (1.35mmol) 3-sodium sulfonate-4-halophenyl-3'-sulfonate phenyl-4"-halophenylphosphine oxide, and 0.4561g (3.3mmol ) anhydrous potassium carbonate. After passing nitrogen for about 15 minutes, add 8 mL of DMAc reaction solvent and 8 mL of toluene (except for toluene in the water trap), and heat the water in the reaction system to reflux at 150 ° C and take it out through toluene, and drain it after 4 hours Toluene, the temperature is increased to 160°C to continue the reaction until the viscosity of the reaction polymer increases to a certain extent. After the temperature is lowered to 120°C, the reactant is poured into 300mL deionized water, and stirred while pouring to obtain a light yellow filament Polymer, soaked in hot water to remove inorganic salts th...

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Abstract

The present invention relates to a phthalazinone-containing disulfonated poly(arylene thioether phosphine oxide), and a preparation method and an application thereof. The above polymer is prepared byhigh-temperature copolymerization of reactants which are a phthalazinone structure-containing bisphenol monomer, a dihalo triphenylphosphine oxide monomer and a disulfonated dihalo triphenylphosphineoxide monomer in a reaction medium mainly composed of a polar solvent or a polar solvent with an alkali metal base or a salt thereof as a catalyst. Compared with polymers in the prior art, the polymerof the invention has the advantages of large molecular weight, good thermal stability, good mechanical properties, small swelling property in an aqueous solution, and good high temperature oxidationresistance. The polymer can be used as a matrix material for proton exchange membranes, and has a good application prospect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a disulfonated polyarylene sulfide phosphine oxide containing phthalazinone and a preparation method and application thereof. Background technique [0002] Sulfonated polyarylene (thio)ether phosphine oxide polymers are a class of high-performance aromatic polymers with good mechanical properties and high thermal stability, and because the phosphine oxide groups contained in them have strong water absorption and moisturizing properties, and The adhesion to inorganic particles or organic matter is considered to be an excellent matrix material for proton exchange membranes, and has potential application prospects in the field of fuel cells. However, when the sulfonation degree is high or the temperature is high, this type of polymer has a large swelling and poor oxidation resistance, which greatly limits its application. [0003] After searching the prior art, it was found that X....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/0227C08G75/0236C08G75/025H01M8/1034H01M8/1032C02F1/44
CPCC02F1/44C08G75/0227C08G75/0236C08G75/0272H01M8/1032H01M8/1034Y02E60/50
Inventor 廖慧英禹华国张珊珊鲁晨毛松丽
Owner SHANGHAI INST OF TECH
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