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High-performance fluorescent functionalized polyarylethernitrile, preparation method and application thereof

A poly(arylene ether nitrile), high-performance technology is applied in the field of high-performance fluorescent functionalized poly(arylene ether nitrile) and its preparation, which can solve the problems of inability to improve the luminous band of poly(arylene ether nitrile) and low luminous efficiency of poly(arylene ether nitrile), and achieves the Good film formation, fluorescence intensity enhancement, spectrum broadening effect

Pending Publication Date: 2020-11-10
CHENGDU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phenolphthalein functional monomer used is not a fluorescent small molecule with high quantum yield, and cannot improve the luminescence band of polyarylether nitrile, and its emission peak is still located in the dark blue light region (about 420nm) that is difficult to observe with the naked eye; and this type The luminous efficiency of polyarylether nitrile is also low

Method used

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  • High-performance fluorescent functionalized polyarylethernitrile, preparation method and application thereof
  • High-performance fluorescent functionalized polyarylethernitrile, preparation method and application thereof
  • High-performance fluorescent functionalized polyarylethernitrile, preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of tetraphenylethylene type polyarylether nitrile copolymer PEN-TPE / BP, and its structural formula is:

[0029]

[0030] This embodiment also provides the synthetic method of this copolymer PEN-TPE / BP, and the steps are as follows:

[0031] Add 0.20mmol tetraphenylethylene bisphenol derivative monomer, 19.80mmol biphenyl bisphenol, 20.00mmol 2,6-dichlorobenzonitrile, 30.00mmol anhydrous potassium carbonate, 16.00mL N-methylpyrrolidone and 6.00mL toluene Put in a 100mL three-necked flask with a mechanical stirring device, a thermometer, a water separator and a condensing device; mechanically stir to mix and dissolve the reactants, then raise the temperature to 130-150°C for azeotropic dehydration for 2 hours, and then gradually raise the temperature to 180-200°C React for 2 to 3 hours; after the reaction is completed, slowly pour the obtained viscous product into dilute hydrochloric acid solution to precipitate a strip-shaped pol...

Embodiment 2

[0033] The present embodiment provides a kind of tetraphenylethylene type polyarylether nitrile copolymer PEN-TPE / HQ, and its structural formula is:

[0034]

[0035] This embodiment also provides the synthetic method of this copolymer PEN-TPE / HQ, and the steps are as follows:

[0036] Add 0.20mmol of tetraphenylethylene bisphenol derived monomer, 19.80mmol of hydroquinone, 20.00mmol of 2,6-dichlorobenzonitrile, 30.00mmol of anhydrous potassium carbonate, 14.00mL of N-methylpyrrolidone and 4.70mL of toluene Put in a 100mL three-necked flask with a mechanical stirring device, a thermometer, a water separator and a condensing device; mechanically stir to mix and dissolve the reactants, then raise the temperature to 130-150°C for azeotropic dehydration for 2 hours, and then gradually raise the temperature to 180-200°C React for 2 to 3 hours; after the reaction is completed, slowly pour the obtained viscous product into dilute hydrochloric acid solution to precipitate a strip-s...

Embodiment 3

[0038] The present embodiment provides a kind of tetraphenylethylene type polyarylether nitrile copolymer PEN-TPE / BPA, and its structural formula is:

[0039]

[0040] This embodiment also provides the synthetic method of this copolymer PEN-TPE / BPA, and the steps are as follows:

[0041]Add 0.20mmol tetraphenylethylene bisphenol derived monomer, 19.80mmol bisphenol A, 20.00mmol 2,6-dichlorobenzonitrile, 30.00mmol anhydrous potassium carbonate, 20.00mL N-methylpyrrolidone and 6.70mL toluene Put in a 100mL three-necked flask with a mechanical stirring device, a thermometer, a water separator and a condensing device; mechanically stir to mix and dissolve the reactants, then raise the temperature to 130-150°C for azeotropic dehydration for 2 hours, and then gradually raise the temperature to 180-200°C for reaction 2 to 3 hours; after the reaction is completed, slowly pour the obtained viscous product into dilute hydrochloric acid solution to precipitate a strip-shaped polyaryle...

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Abstract

The invention discloses high-performance fluorescent functionalized polyarylethernitrile, a preparation method and application thereof, and relates to the field of functional polymer materials. The preparation method comprises the following steps: putting 2,6-dichlorobenzonitrile, a tetraphenyl ethylene bisphenol derivative monomer, an aromatic dihydric phenol monomer, a catalyst, an organic solvent and a water-carrying agent into a reactor together; stirring to mix and dissolve reactants, heating to 130-150 DEG C, carrying out azeotropic dehydration for 2 hours, gradually heating to 180-200 DEG C, reacting for 2-3 hours, slowly pouring the obtained viscous product into a diluted hydrochloric acid solution after the reaction is finished, and separating out a strip-shaped polyarylethernitrile solid; and crushing, purifying and drying to obtain a polyarylethernitrile polymer of which the main chain contains a tetraphenyl ethylene structure. According to the invention, an aggregation-induced monomer is introduced into a molecular main chain, so that the luminous efficiency of the polymer is enhanced, the fluorescence intensity is enhanced by 1.5-15.9 times, the emission peak is subjected to red shift from about 420 nm to about 460 nm, the spectrum is broadened, the polymer has good film-forming property, thermal stability and mechanical property, and the synthesis method is simpleand convenient to operate.

Description

technical field [0001] The invention relates to the field of functional polymer materials, in particular to a high-performance fluorescent functionalized polyarylether nitrile and its preparation method and application. Background technique [0002] Polyarylether nitrile (PEN) is a new type of special polymer material with excellent heat resistance, radiation resistance, corrosion resistance, excellent mechanical strength, good electrical insulation and flame retardancy, and easy processing. At present, it has been used in high-tech fields such as aerospace, special equipment and electrical equipment. In recent years, driven by innovation, oriented by improving material technology content and added value, polyarylether nitrile has gradually developed its functional application as a special polymer material with excellent comprehensive performance, which proves that it can not only be used as a high-performance special engineering plastic, It can also become a high-performan...

Claims

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Application Information

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IPC IPC(8): C08G65/40C09K11/06
CPCC08G65/4031C08G65/4093C09K11/06C09K2211/1425C09K2211/145
Inventor 王盼杨旭林李逵李涛王怡如孔清泉朱晓东冯威董志红曾德莉庞旭楞杨林峰汤怡龙
Owner CHENGDU UNIV
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