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Methoxy polyaromatic ether ketone resin and preparation method thereof

A technology of methoxy polyarylether and methoxy aryl ether, which is applied in the field of methoxy polyarylether ketone resin and its preparation, can solve the problems of reducing production cost and achieve low production cost, good heat resistance, The effect of mild reaction conditions

Inactive Publication Date: 2018-07-06
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages are mild conditions and convenient sources of raw materials, but there are side reactions such as polymer branching and cross-linking. If this problem can be effectively solved, the use of electrophilic lines can greatly reduce production costs, making its application scope not limited to A cutting-edge technology field with great potential for civilian use

Method used

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  • Methoxy polyaromatic ether ketone resin and preparation method thereof
  • Methoxy polyaromatic ether ketone resin and preparation method thereof
  • Methoxy polyaromatic ether ketone resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of Methoxyaryl Ether Monomer

[0036] Add 0.22mol o-methoxyphenol, 50ml N-methylpyrrolidone, 0.22mol sodium hydroxide, and 80ml toluene to a three-necked flask equipped with a mechanical stirrer, reflux dehydration device, and nitrogen protection, and the mixture is heated at 140°C in an oil bath. Heating under reflux for dehydration, until the reaction is complete to remove the water, the temperature of the oil bath is raised to 160°C to distill the toluene. Cool slightly, add 0.1mol of 4,4-dichlorodiphenyl sulfone, and adjust the oil bath temperature to 190-200°C, and react for 5-6h. After the reaction was completed, the reactant was poured into water to precipitate a precipitate, filtered with suction, washed once with dilute sodium hydroxide solution, and washed once with cold and hot water to obtain a white solid with a yield of 94%. The prepared monomer was recrystallized twice, dried and measured for melting point. The melting point of the product i...

Embodiment 2

[0039] Add 0.22mol o-methoxyphenol, 50ml sulfolane, 0.22mol potassium carbonate, and 80ml toluene to a three-necked flask equipped with a mechanical stirrer, reflux dehydration device, and nitrogen protection, and heat the mixture under reflux dehydration at a temperature of 150°C in an oil bath. After the reaction was completed, the water was removed, and the temperature of the oil bath was raised to 160°C to distill off the toluene. Cool slightly, add 0.1mol of 4,4-dichlorodiphenyl sulfone, and adjust the temperature of the oil bath to 200°C, and react for 5-6h. After the reaction was completed, the reactant was poured into water to precipitate a precipitate, filtered with suction, washed once with dilute sodium hydroxide solution, and washed once with cold and hot water to obtain a white solid with a yield of 95%. The prepared monomer was recrystallized twice, dried and measured for melting point. The melting point of the product is 241-242°C.

Embodiment 3

[0041]Add 0.22mol o-methoxyphenol, 50ml N-methylpyrrolidone, 0.22mol potassium hydroxide, and 80ml toluene to a three-necked flask equipped with a mechanical stirrer, reflux dehydration device, and nitrogen protection, and the mixture is heated at 140°C in an oil bath. Heating under reflux for dehydration, until the reaction is complete to remove the water, the temperature of the oil bath is raised to 160°C to distill the toluene. Cool slightly, add 0.1mol of 4,4'-difluorobenzophenone, and adjust the oil bath temperature to 180-190°C, and react for 5-6h. After the reaction was completed, the reactant was poured into water to precipitate a precipitate, filtered with suction, washed once with dilute sodium hydroxide solution, and washed once with cold and hot water to obtain a white solid with a yield of 96%. The prepared monomer was recrystallized twice, dried and measured for melting point. The melting point of the product is 133-134°C.

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Abstract

The invention relates to methoxy polyaromatic ether ketone resin and a preparation method thereof. The preparation method comprises the following steps: taking aromatic dihalide, such as 4,4'-difluorobenzophenone or 4,4'-dichlorophenone and 4,4'-dichlorodiphenylsulfone, and o-methoxyphenol as raw materials, and performing nucleophilic substitution reaction to prepare a methoxyaryl ether monomer; and then performing electrophilic substitution polycondensation reaction on the methoxyaryl ether monomer and acryl chloride such as paraphthaloyl chloride or m-phthaloyl chloride to prepare a series of resin with methoxy polyaromatic ether ketone. The resin has high heat resistance, high dissolubility, high film-forming property and excellent mechanical properties, and the methoxy group can be further functionalized.

Description

technical field [0001] The invention relates to a methoxy polyaryletherketone resin and a preparation method thereof, specifically belonging to the technical field of polymer materials. Background technique [0002] Polyaryletherketone (PEK) is a special polymer material with excellent mechanical properties, dimensional stability, high heat resistance, chemical corrosion resistance, solvent resistance, flame retardancy, and radiation protection. It is suitable for Special engineering plastics and high-performance composite resin matrix have good applications in aerospace, electronic information, high-tech, advanced weapons and other fields. As a semi-crystalline polymer, PEK has high melting temperature and melt viscosity, and the molding process is relatively difficult, which limits its application. In recent years, aiming at the high melting temperature and low fracture toughness of PEK resin, many new structures and excellent polyaryletherketones have been developed one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C07C315/04C07C317/22C07C45/64C07C49/84
CPCC07C45/64C07C315/04C08G61/127C08G2261/124C08G2261/1424C08G2261/3442C08G2261/3444C08G2261/592C07C317/22C07C49/84
Inventor 刘勇军钟鸣宋琤盛寿日刘晓玲
Owner JIANGXI NORMAL UNIV
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