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Synthesis method of high-temperature-resistant polyarylene ether nitrile resin

The technology of polyarylene ether nitrile resin and polyarylene ether nitrile is applied in the field of preparation of polymer compounds, and can solve the problems of reduced product processing performance, decomposition of second-phase macromolecules, affecting processing performance, etc., and achieves improved compatibility, Excellent heat resistance and good processability

Active Publication Date: 2016-07-13
MIANYANG HONGQI NEW MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above reported PENs synthesized by different modification methods and containing different functional groups are outstanding in heat resistance, processability, solubility or toughness, etc. However, their heat resistance improvement often affects the processability. The processing performance of the product is reduced; the specific performance is that the processing temperature is often higher than 300 ° C, even as high as about 350 ° C, so that it is easy to induce the second phase polymer (polycarbonate) when it is blended with other resins (such as polycarbonate) to prepare alloys. Carbonate) decomposes, extruding the sample produces foaming phenomenon

Method used

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  • Synthesis method of high-temperature-resistant polyarylene ether nitrile resin
  • Synthesis method of high-temperature-resistant polyarylene ether nitrile resin
  • Synthesis method of high-temperature-resistant polyarylene ether nitrile resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of synthetic method of high temperature resistant polyarylether nitrile resin, the steps are:

[0025] a. Preparation of bisphenol functional monomers: 2 parts by weight of 2-naphthaldehyde, 8 parts by weight of 2,6-xylenol and 60 parts by weight of toluene were placed in a reaction kettle equipped with a reflux condensation and stirring device. In a nitrogen atmosphere, 23 parts by weight of a concentration of 60% sulfuric acid and 0.04 parts by weight of 3-mercaptopropionic acid were added dropwise to the reactor, and the addition was controlled within 30 minutes; after the addition, the reaction mixture was heated to 40°C, and keep warm for 12 hours until the mucus produces red precipitate;

[0026] The mucus containing the red precipitate was washed 3 times with deionized water, washed 2 times with toluene, concentrated and yellow crystals were precipitated. The yellow crystals were placed in a vacuum oven and dried at 30°C for 24 hours to obtain bisphenol f...

Embodiment 2

[0030] A kind of synthetic method of high temperature resistant polyarylether nitrile resin, the steps are:

[0031]a. Preparation of bisphenol functional monomers: 10 parts by weight of 2-naphthaldehyde, 24 parts by weight of 2,6-xylenol and 200 parts by weight of toluene were placed in a reaction kettle equipped with a reflux condensation and stirring device. In a nitrogen atmosphere, 75 parts by weight of a concentration of 60% sulfuric acid solution and 0.2 parts by weight of 3-mercaptopropionic acid were added dropwise to the reactor, and the addition was controlled within 60 minutes; after the addition, the reaction mixture was heated to 60°C, and keep warm for 8 hours until the mucus produces red precipitate;

[0032] The mucus containing the red precipitate was washed 3 times with deionized water, washed 2 times with toluene, concentrated and yellow crystals were precipitated. The yellow crystals were placed in a vacuum oven and dried at 50°C for 12 hours to obtain bi...

Embodiment 3

[0036] A kind of synthetic method of high temperature resistant polyarylether nitrile resin, the steps are:

[0037] a. Preparation of bisphenol functional monomers: 2 parts by weight of 2-naphthaldehyde, 11 parts by weight of 2,6-xylenol and 90 parts by weight of toluene were placed in a reaction kettle equipped with a reflux condensation and stirring device. In a nitrogen atmosphere, 31 parts by weight of a concentration of 60% sulfuric acid solution and 0.08 parts by weight of 3-mercaptopropionic acid were added dropwise to the reactor, and the addition was controlled within 40 minutes; after the addition, the reaction mixture was heated to 60 ℃, and keep warm for 10h, until the mucus produces red precipitate;

[0038] The mucus containing the red precipitate was washed 3 times with deionized water, washed 2 times with toluene, concentrated and yellow crystals were precipitated. The yellow crystals were placed in a vacuum oven and dried at 40°C for 18 hours to obtain bisph...

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Abstract

The invention discloses a synthesis method of high-temperature-resistant polyarylene ether nitrile resin. The synthesis method is characterized by comprising the following steps: placing 2-naphthaldehyde, 2,6-xylenol and toluene in a reaction kettle, dropwise adding a sulfuric acid aqueous solution and 3-thiohydracrylic acid under nitrogen atmosphere, heating and concentrating after washing by deionized water and toluene, separating out a crystal and drying to obtain a bisphenol functional monomer; adding 2,6-dichlorobenzonitrile, a diphenol monomer, the bisphenol functional monomer, anhydrous potassium carbonate, N, N-dimethylpyrrolidine and toluene to the reaction kettle, carrying out heat preservation to obtain a polycondensation product; adding the polycondensation product to deionized water or the sulfuric acid aqueous solution to be boiled, performing suction filtration, washing a solid by deionized water and then drying the solid to prepare the high temperature resistant polyarylene ether nitrile resin. According to the invention, the bisphenol monomer of which the side group contains a naphthalene ring structure is introduced into molecules of the traditional polyarylene ether nitrile, so that the prepared polyarylene ether nitrile resin has good heat resistance and processing properties.

Description

technical field [0001] The invention belongs to the preparation of macromolecular compounds, and relates to a synthesis method of high-temperature-resistant polyarylether nitrile resin. The polyarylether nitrile resin prepared by the invention has good high temperature resistance and processability, and can be widely used in the fields of industry, aerospace, automobile manufacturing, electronics, medical treatment, food processing and the like. Background technique [0002] Polyarylether nitrile (referred to as PEN) has high strength, high modulus, high fracture toughness and excellent dimensional stability, belongs to high temperature resistant thermoplastics, has higher glass transition temperature, melting point and load heat deformation temperature; and, PEN resin has excellent chemical resistance, high flame retardancy, and excellent processability (easy extrusion and injection molding). Therefore, PEN resin has a wide range of applications in the fields of industry, ...

Claims

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Application Information

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IPC IPC(8): C08G65/40C08G65/46C08L69/00C08L71/10C08L67/02
CPCC08G65/4006C08G65/46C08G2650/50C08G2650/64C08L67/02C08L69/00C08L71/00
Inventor 曾学良任先艳刘才林卓勇曾昌明郑中英朱波汪学军
Owner MIANYANG HONGQI NEW MATERIAL SCI & TECH
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