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Preparation method of poly (arylene ether nitrile) resin low in dielectric constant and high in glass-transition temperature

A polyarylene ether nitrile and high glass transition technology is applied in the field of preparation of low dielectric and high glass transition temperature polyarylene ether nitrile resins, which can solve the problems of inability to meet heat treatment, inability to meet the requirements of dielectric properties of 5G electronic substrates, etc. , to achieve the effect of universality, easy promotion and simple process method

Active Publication Date: 2019-11-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The glass transition temperature of the existing polyarylether nitrile material is about 180°C, which cannot meet the requirements of heat treatment (about 260°C) in the electronic substrate processing and preparation process; meanwhile, the dielectric constant of the existing polyarylether nitrile film is between 3.5-4.0, the dielectric loss is in the range of 0.01-0.05, which cannot meet the dielectric characteristics requirements of 5G electronic substrates

Method used

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Effect test

Embodiment 1

[0031] Embodiment 1 of the present invention discloses a preparation method of polyarylether nitrile resin with low dielectric and high glass transition temperature, and the adopted technical scheme is as follows:

[0032] A kind of preparation method of low dielectric high glass transition temperature polyarylether nitrile resin, the steps are as follows:

[0033] S1, 27.46g of potassium carbonate and 25.8g of 2,6-dichlorobenzonitrile were sequentially added to 75ml of N-methylpyrrolidone to obtain a transparent solution;

[0034] S2, add 15.43g of bisphenol AF, 34.09g of phenolphthalein and 25ml of toluene to the solution in step S1 in sequence, react in a closed three-necked bottle at a temperature of 145°C for 2h, then raise the temperature to 180°C, react and polymerize for 5h, stir and Evaporate the toluene for 40 minutes, completely evaporate the toluene in the three-necked bottle, stop heating, lower the temperature to 160°C, add the reaction solution into cold water t...

Embodiment 2

[0040] Embodiment 2 of the present invention discloses a preparation method of polyarylether nitrile resin with low dielectric and high glass transition temperature, and the technical scheme adopted is as follows:

[0041] A kind of preparation method of low dielectric high glass transition temperature polyarylether nitrile resin, the steps are as follows:

[0042] S1, 27.46g of potassium carbonate and 25.8g of 2,6-dichlorobenzonitrile were sequentially added to 75ml of N-methylpyrrolidone to obtain a transparent solution;

[0043] S2, add 20.57g of bisphenol AF, 29.22g of phenolphthalein and 25ml of toluene to the solution in step S1 in sequence, react in a closed three-necked bottle at a temperature of 145°C for 2h, then raise the temperature to 180°C, react and polymerize for 5h, stir and Evaporate the toluene for 45 minutes, completely evaporate the toluene in the three-necked bottle, stop heating, lower the temperature to 160°C, add the reaction solution into cold water t...

Embodiment 3

[0049] Embodiment 3 of the present invention discloses a preparation method of polyarylether nitrile resin with low dielectric and high glass transition temperature, and the adopted technical scheme is as follows:

[0050] A kind of preparation method of low dielectric high glass transition temperature polyarylether nitrile resin, the steps are as follows:

[0051] S1, 27.46g of potassium carbonate and 25.8g of 2,6-dichlorobenzonitrile were sequentially added to 75ml of N-methylpyrrolidone to obtain a transparent solution;

[0052] S2, add 25.72g of bisphenol AF, 24.35g of phenolphthalein and 25ml of toluene to the solution of step S1 in sequence, react in a closed three-necked bottle at a temperature of 150°C for 2h, then raise the temperature to 180°C, react and polymerize for 4.5h, and stir And steam the toluene for 40 minutes, the toluene in the three-neck bottle is completely steamed, stop heating, lower the temperature to 160°C, add the reaction solution into cold water ...

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Abstract

The invention discloses a preparation method of a poly (arylene ether nitrile) resin low in dielectric constant and high in glass-transition temperature. The preparation method comprises following steps: potash and 2, 6-dichlorobenzonitrile are added into N-methyl pyrrolidone successively; a dihydric phenol and toluene are added successively, heating polymerization is carried out, evaporation is carried out to remove toluene, and cooling is carried out for precipitation of a solid material; washing is carried out to obtain a powder particle material; the powder particle material is dissolved in N-methyl pyrrolidone for purifying so as to obtain a purified sample; the purified sample is dissolved in N, N-dimethyl formamide, gauze filtering, tape casting film forming, and gradient heating are carried out to obtain poly (arylene ether nitrile) resin film. The preparation method is capable of increasing the glass-transition temperature and reducing the dielectric constant and loss of conventional poly (arylene ether nitrile), and satisfying basic using requirements of resin adopted in 5G high frequency base materials.

Description

technical field [0001] The invention relates to the technical field of synthesis technology of special polymers, and more specifically relates to a preparation method of polyarylether nitrile resin with low dielectric and high glass transition temperature. Background technique [0002] At present, electronic information technology is advancing by leaps and bounds, and electronic products are further miniaturized, lightweight, and assembled with high density. Conventional polymer materials can no longer meet the use requirements in terms of heat resistance, chemical resistance, dimensional stability, and long-term reliability. Development is urgently needed. Heat resistant low dielectric polymer material with high glass transition temperature (Tg). Polyarylene ether nitrile (PEN) is a new type of special engineering plastic with flexible aromatic ether bonds in the main chain of the macromolecule and polar nitrile groups in the side chain. It not only has the characteristics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L71/10C08G65/40C08G65/46
CPCC08G65/4006C08G65/46C08J5/18C08J2371/10
Inventor 徐明珍陈思静任登勋李逵陈林袁悦李博刘孝波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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