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Aromatic ether nitrile-group resin monomer and synthesis method thereof

A synthesis method and resin-based technology, applied in chemical instruments and methods, carboxylic acid nitrile preparation, organic compound preparation, etc., can solve the problems of high post-curing temperature, long curing time, and low relative content of nitrile groups, etc. Achieve the effects of short post-curing time, simple and effective synthesis method, and simple and easy-to-control synthesis method

Active Publication Date: 2016-01-06
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently disclosed aryl ether nitrile compounds all have the disadvantages of high post-curing temperature and long curing time, which is mainly due to the low relative content of nitrile groups that can participate in curing crosslinking.

Method used

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  • Aromatic ether nitrile-group resin monomer and synthesis method thereof
  • Aromatic ether nitrile-group resin monomer and synthesis method thereof
  • Aromatic ether nitrile-group resin monomer and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of aryl ether nitrile base resin monomer of the present invention, molecular structural formula is following formula (I):

[0036]

[0037] A kind of synthetic method of the aromatic ether nitrile resin monomer of above-mentioned present embodiment, comprises the following steps:

[0038] (1) Preparation of 2,6-bis(3-oxyphenoxy)benzonitrile salt

[0039] (1.1) Add 0.006mol resorcinol, 0.012mol anhydrous potassium carbonate, 20ml N-methylpyrrolidone NMP (solvent), 20ml toluene (water-carrying agent), into a dry reactor (such as a three-neck round bottom flask) , and install an upper water separator and a reflux condenser, vacuumize and replace nitrogen, heat the oil bath to 140 ° C, and keep stirring and reflux for 3 hours. During this period, the mixed solution of water agent and water is continuously divided.

[0040] (1.2) When the mixture of water-carrying agent and water no longer appears in the reflux condenser, raise the temperature to 170°C to evapora...

Embodiment 2

[0048] A kind of aryl ether nitrile resin monomer of the present invention is identical with embodiment 1.

[0049] A kind of synthetic method of the aryl ether nitrile resin monomer of the present embodiment, step is basically the same as embodiment 1, difference only is: in step (1.1), the solvent that adopts is dimethyl sulfoxide DMSO; In step (1.2) The temperature for steaming and removing the water-carrying agent is 160° C.; the reflux temperature in step (1.3) is 180° C., and the reflux stirring time is 12 hours.

Embodiment 3

[0051] A kind of aryl ether nitrile resin monomer of the present invention is identical with embodiment 1.

[0052] A method for synthesizing the aryl ether nitrile resin monomer of this embodiment, the steps are basically the same as in Example 1, the only difference being that in step (1.1), the oil bath heating temperature is 150°C and kept for 1 hour.

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Abstract

The invention discloses an aromatic ether nitrile-group resin monomer and a synthesis method thereof. The molecular structural formula of the aromatic ether nitrile-group resin monomer is shown in (I). The synthesis method comprises the steps that 1, resorcinol and 2,6-dichlorobenzonitrile serve as the main raw materials to prepare 2,6-bis(3-oxygroup phenoxyl)benzonitrile; 2, 4-nitrophthalonitrile and the 2,6-bis(3-oxygroup phenoxyl)benzonitrile serve as the raw materials for reaction, and the aromatic ether nitrile-group resin monomer is obtained. The aromatic ether nitrile-group resin monomer has the advantages of being high in nitrile-group content, high in heat resistance, high in mechanical properties, short in post-curing time and the like, the synthesis method is simple and easy to control, the aromatic ether nitrile-group resin monomer is synthesized through a two-step reaction in one kettle, waste of the raw materials can be reduced, intermediate links are simplified, the preparation time is shortened, and the synthesis method is suitable for low-cost industrial production.

Description

technical field [0001] The invention belongs to the technical field of organic synthetic polymer materials, and relates to an aromatic ether nitrile resin monomer and a synthesis method thereof, in particular to an aromatic ether nitrile resin monomer with double melting points and high nitrile group content and a two-step one-pot synthesis method thereof. Background technique [0002] Aerospace, national defense and military fields have put forward new requirements for composite materials with high temperature resistance, high performance and good flame retardancy. Phthalonitrile resins are favored for their cured products with good thermal stability and mechanical properties, excellent thermo-oxidative stability and flame retardancy, and good moisture resistance. At present, this kind of resin has been widely used in the fields of aerospace, shipbuilding, microelectronics and machinery manufacturing. At present, typical phthalonitrile resins mainly include biphenyl type b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C255/54C07C253/30
Inventor 盛丽萍尹昌平邢素丽肖加余杨金水曾竟成
Owner NAT UNIV OF DEFENSE TECH
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