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A kind of photocurable polyether ether ketone oligomer and preparation method thereof

A technology for polyether ether ketone and oligomer is applied in the field of photocurable polyether ether ketone oligomer and its preparation, and achieves the effects of simple method, easy molecular structure and easy availability of raw materials

Active Publication Date: 2020-08-11
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no clear report on the photosensitive properties of polyetheretherketone. If polyether ether ketone is used as a high-performance photosensitive resin, it has the ability to cure quickly, but it is still a kind of polyetheretherketone in essence. The main molecular structure of polyether ether ketone exists in the resin system, but what needs to be solved is how to design and synthesize the main chain structure to prepare polymers with photosensitive properties, especially for UV absorption and curing molding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] At room temperature, add 21.82 g of difluorobenzophenone and 12.11 g of hydroquinone to 100 mL of N,N-dimethylacetamide and 30 mL of toluene, stir for 1 hour, and add the catalyst anhydrous carbonic acid after it is completely dissolved Potassium 13.81 g, then gradually heated to 130°C for 5 hours to react for salt formation, and finally heated to 170°C for 10 hours of reaction, and cooled to room temperature to obtain a viscous solution. Add a small amount of N,N-dimethylacetamide to dilute the viscous solution, then add 0.248 g of the catalyst dibutyltin dilaurate, stir evenly, add 3.1 g of isocyanoethyl methacrylate, react at 80°C for 6 hours, cool To room temperature, pour the reaction viscous liquid into 500 mL of acetone to precipitate solids. After filtering, use 1L of deionized water lotion twice, and then use 500 mL of acetone and 500 mL of deionized water mixture lotion for 3 times, at 55℃ Vacuum drying obtains the light-curable polyether ether ketone oligomer ...

Embodiment 2

[0032] At room temperature, add 96.69 g 4,4-difluorotriphenyl ketone and 132.44 g 4,4-dihydroxydiphenyl ether to 500 mL N,N-dimethylacetamide and 150 mL toluene, and stir for 1 hour. After complete dissolution, 44.23 g of anhydrous potassium carbonate catalyst was added, and then gradually heated to 140°C for 5 hours. The toluene refluxed with water and the toluene was removed to form a salt reaction. Finally, it was heated to 170°C for 5 hours and cooled to room temperature to obtain Viscous solution. Add 150 mL of N,N-dimethylacetamide to dilute the viscous solution, then add 2.54 g of the catalyst dibutyltin dilaurate, stir well, add 25.4 g of isocyanoethyl acrylate, react at 100 ℃ for 6 hours, and cool to At room temperature, pour the viscous reaction liquid into 1000 mL of acetone to precipitate solids. After filtering, use 2 L of deionized water lotion twice, then 500 mL of acetone and 1 L of deionized water mixture lotion for 3 times, at 55°C Vacuum drying obtains the l...

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PUM

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Abstract

The invention discloses a photocurable polyetheretherketone oligomer. The photocurable polyetheretherketone oligomer has molecular weight of 1000 to 10000 and has a general structural formula shown inthe description. In the formula, n is greater than or equal to 1 and less than or equal to 10, R1 represents one or more of groups shown in the description, R2 represents one or more of groups shownin the description, R3 represents one or more of O and groups shown in the description and R4 represents one of H and CH3. The invention also discloses a preparation method of the photocurable polyetheretherketone oligomer. The preparation method improves the solubility of polyetheretherketone in an active diluent, realizes the unsaturation and molecular weight controllable preparation of the polyetheretherketone oligomer and solves the problems of dissolution difficulty and melting difficulty. Through use of the active double bond, the polyetheretherketone resin can be directly and fast curedand molded without the conventional high-temperature molding method.

Description

Technical field [0001] The invention belongs to the field of high-performance light-curable resins, and relates to a light-curable polyether ether ketone oligomer and a preparation method thereof. The oligomer is used in fields such as fast-curing electrical insulation, aerospace parts manufacturing, automotive component manufacturing, and high-performance resins that can be rapidly formed into complex components. Background technique [0002] As the most important product of polyaryl ether ketone, polyether ether ketone is endowed with excellent comprehensive properties due to its special molecular structure, such as high heat resistance, abrasion resistance, chemical resistance, and excellent electrical properties. Characteristics and excellent self-lubricating properties. Since the first successful research and development of the Imperial Chemical Company in 1977, polyetheretherketone has developed into a variety of products including films, composites, foams and sheets, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/02C08G8/30
CPCC08G8/02C08G8/30
Inventor 王晓龙郭玉雄张亮闫昌友马正峰周峰
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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