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Polyaryletherketone containing naphthalene structure and preparation method thereof

The technology of polyaryletherketone and naphthalene diphenol is applied in the field of polyaryletherketone containing naphthalene structure and its preparation, high-performance engineering plastics synthesis, and can solve the problems of insolubility, difficulty in handling, low glass transition temperature and the like, To achieve the effect of easy processing, wide application prospects and simple post-processing

Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is that in the prior art, polyaryletherketone resins are difficult to post-treat, cannot be dissolved, and the glass transition temperature is relatively low.

Method used

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  • Polyaryletherketone containing naphthalene structure and preparation method thereof
  • Polyaryletherketone containing naphthalene structure and preparation method thereof
  • Polyaryletherketone containing naphthalene structure and preparation method thereof

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Embodiment approach

[0041] According to one embodiment of the present invention, the preparation method of the polyaryletherketone includes adding the naphthalene diol monomer, 4,4'-dihalobenzophenone monomer and catalyst into an aprotic polar Azeotropic dehydration in a solvent or a mixed solvent containing an aprotic polar solvent, followed by a polymerization reaction, adding a precipitating agent after the reaction to precipitate the polymer, and finally filtering, washing and drying.

[0042] In a further embodiment, the naphthalene diol monomer is at least A sort of.

[0043] In a further embodiment, the 4,4'-dihalobenzophenone monomer is selected from 4,4'-difluorobenzophenone, 4,4'-dichlorobenzophenone, 4, At least one of 4'-dibromobenzophenone and 4,4'-diiodobenzophenone.

[0044] In a further embodiment, the aprotic polar solvent is preferably selected from N,N'-dimethylformamide, N,N'-dimethylacetamide, sulfolane, N-methylpyrrolidone, dimethyl at least one of sulfoxides.

[0045] I...

Embodiment 1

[0055] Under nitrogen protection, 192.2g (1.2mol) 1,4-naphthalenediol, 261.6g (1.2mol) 4,4'-difluorobenzophenone, 248.8g (1.8mol) anhydrous K 2 CO 3 , 1600ml of N-methylpyrrolidone and 400ml of toluene were added to a reactor equipped with a stirrer, a thermometer, a reflux water separator and a nitrogen inlet, and the temperature was raised while stirring to react. Then, most of the toluene was distilled off. The temperature was raised to 200°C, and the high-temperature polymerization was carried out for 20 hours. The reaction system gradually changed from light yellow to brown, and the viscosity of the system increased significantly. After the reaction is finished, N-methylpyrrolidone is added to dilute the reaction mixture, the polymer solution is stirred at high speed, and boiling water is used as a precipitating agent to precipitate, filter and drain the polymer. The polymer was vacuum-dried at 120° C. for 24 hours to obtain a pure polyaryletherketone resin.

[0056] T...

Embodiment 2

[0058] Under nitrogen protection, 192.2g (1.2mol) 1,5-naphthalenediol, 261.6g (1.2mol) 4,4'-difluorobenzophenone, 248.8g (1.8mol) anhydrous K 2 CO 3 , 1600ml of N-methylpyrrolidone and 400ml of toluene were added to a reactor equipped with a stirrer, a thermometer, a reflux water separator and a nitrogen inlet, and the temperature was raised while stirring to react. Then, most of the toluene was distilled off. The temperature was raised to 200°C, and the high-temperature polymerization was carried out for 15 hours. The reaction system gradually changed from light yellow to brown, and the viscosity of the system increased significantly. After the reaction is finished, N-methylpyrrolidone is added to dilute the reaction mixture, the polymer solution is stirred at high speed, and boiling water is used as a precipitating agent to precipitate, filter and drain the polymer. The polymer was vacuum-dried at 120° C. for 24 hours to obtain a pure polyaryletherketone resin.

[0059] T...

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Abstract

The invention discloses polyaryletherketone containing a naphthalene structure and a preparation method of the polyaryletherketone. The polyaryletherketone has a structure as shown in the following formula (I), wherein n is equal to 10-500. The highest glass transition temperature of the polymer can reach 260 DEG C, the intrinsic viscosity of the polymer can reach 0.4-0.88, and the polymer has the characteristics of simple post-treatment, good solubility, high temperature resistance, easiness in processing and the like, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to high-performance engineering plastics synthesis technology, in particular to a naphthalene-containing polyaryletherketone and a preparation method thereof. Background technique [0002] Polyaryletherketone (PAEK) resin refers to a class of fully aromatic polymers that contain only aromatic rings and connected ketone and ether groups in the repeating units of the molecular chain. Its earliest variety is polyetheretherketone (PEEK) resin, which was first successfully developed by the British ICI company since the 1970s and commercialized in 1981. PEEK is a semi-crystalline polymer, although the glass transition temperature T g Only 143°C, but the melting point T m But as high as 334 ℃. Therefore, the heat distortion temperature of its pure resin is only 150°C, but its heat distortion temperature can be as high as 310°C or more after being reinforced with carbon fiber or glass fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40
CPCC08G65/4012C08G2650/40
Inventor 王鑫张藕生唐建华余荣禄王芳
Owner CHINA PETROLEUM & CHEM CORP
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