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A high temperature resistant ultraviolet fluorescent polyaryl ether sulfone copolymer, preparation method and the copolymer film

A polyarylether sulfone and copolymer technology, applied in the field of functional polymer materials, can solve the problems of poor fluorescent performance or stability of flexible chain polymers, inability to meet diversification, poor film-forming properties of small molecules, etc., and achieve good Application prospects, good thermal stability and effect on mechanical properties

Active Publication Date: 2021-08-10
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current research on aggregation-induced luminescent materials is mainly concentrated in the field of small molecules or flexible chain polymers, but the film-forming properties of small molecules are poor, and the fluorescence properties or stability of flexible chain polymers are not good. Functional Requirements

Method used

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  • A high temperature resistant ultraviolet fluorescent polyaryl ether sulfone copolymer, preparation method and the copolymer film
  • A high temperature resistant ultraviolet fluorescent polyaryl ether sulfone copolymer, preparation method and the copolymer film
  • A high temperature resistant ultraviolet fluorescent polyaryl ether sulfone copolymer, preparation method and the copolymer film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Preparation of polyarylethersulfone-tetraphenylethylene copolymer PAES-6FPA-TPE-10%

[0034](1) Under a nitrogen atmosphere, anhydrous potassium carbonate 3.6487g, phenolphthalein 0.641g, 2,2'-bis(4-hydroxyphenyl)-hexafluoropropane 6.049g, 4,4'-difluorodiphenyl Add 5.085g of sulfone into a 100mL three-neck flask equipped with a mechanical stirrer, a nitrogen vent, a thermometer, a condenser, and a water-carrying device, add 40mL of sulfolane as a solvent, and 20mL of toluene as a water-carrying agent. After fully stirring all the reactants, raise the temperature to 130°C and reflux for 2 hours, completely remove the water generated by the reaction, and then distill off the excess azeotropic water agent. Then the reaction temperature was raised to 180° C. for 4 hours. After the reaction is completed, the obtained viscous solution is slowly poured into a 10% hydrochloric acid solution by mass fraction to obtain flexible polymer strips. The thin polymer strips...

Embodiment 2

[0039] Example 2: Preparation of polyarylethersulfone-tetraphenylethylene copolymer PAES-BPA-TPE-10%

[0040] (1) Under nitrogen atmosphere, anhydrous potassium carbonate 3.6487g, phenolphthalein 0.641g, 2,2'-bis(4-hydroxyphenyl)propane 4.1092g, 4,4'-difluorodiphenyl sulfone 5.085g Add it into a 100mL three-necked flask equipped with a mechanical stirrer, a nitrogen vent, a thermometer, a condenser, and a water-carrying device, add 40mL of sulfolane as a solvent, and 20mL of toluene as a water-carrying agent. After fully stirring all the reactants, raise the temperature to 130°C and reflux for 2 hours, completely remove the water generated by the reaction, and then distill off the excess azeotropic water agent. Then the reaction temperature was raised to 180° C. for 4 hours. After the reaction was completed, the viscous solution was slowly poured into 10% hydrochloric acid solution to obtain flexible polymer strips. The thin strips were put into a pulverizer to pulverize to ...

Embodiment 3

[0044] Example 3: Preparation of polyarylethersulfone-tetraphenylethylene copolymer PAES-3FHQ-TPE-30%

[0045] (1) Under nitrogen atmosphere, anhydrous potassium carbonate 4.671g, phenolphthalein 1.922g, 2-(3'-trifluoromethylphenyl)hydroquinone 3.5588g, 4,4'-difluorodiphenyl Add 5.085g of sulfone into a 100mL three-necked flask equipped with a mechanical stirrer, a nitrogen vent, a thermometer, a condenser, and a water-carrying device, add 40mL of sulfolane as a solvent, and 20mL of toluene as a water-carrying agent. After fully stirring all the reactants, the temperature was raised to 120° C. and refluxed for 2 hours, the water generated by the reaction was completely removed, and the excess azeotropic water agent was distilled off. Then the reaction temperature was raised to 180° C. for 4 hours. After the reaction was completed, the viscous solution was slowly poured into 10% hydrochloric acid solution to obtain flexible polymer strips. The thin strips were put into a pulv...

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Abstract

A high temperature resistant ultraviolet fluorescent polyaryl ether sulfone copolymer and a preparation method thereof belong to the technical field of functional polymer materials. The present invention first prepares polyaryl ether sulfone copolymers containing carboxyl groups in their side chains, and then introduces aggregation-inducing luminescent groups into polyaryl ether sulfone copolymers through chemical grafting reactions to obtain polyaryl ether sulfone copolymers containing aggregation-inducing luminescent groups in their side chains. ether sulfone copolymer. The copolymer can emit fluorescence of different colors through the principle of aggregation-induced luminescence under the irradiation of ultraviolet light. Ultraviolet fluorescent polyarylethersulfone film has strong stable fluorescence characteristics, and can be used in optical display under extreme conditions, fluorescent anti-counterfeiting marks and other fields.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to a high-temperature-resistant ultraviolet fluorescent polyaryl ether sulfone copolymer, a preparation method and the copolymer film. Background technique [0002] Generally, organic fluorescent materials have strong fluorescence in the solution state, but the fluorescence efficiency will be significantly reduced or even quenched in the aggregated state. This limits the practical application of fluorescent materials, because the daily required fluorescent materials are generally in solid state or thin film state. In 2001, Tang Benzhong's research group first discovered and proposed substances with aggregation-induced emission (AIE) effect (Luo J T, Lam J W Y, Cheng L, Chen H, Qiu C, Kwok H S, Zhan X, Liu Y, Zhu D, Tang B Z. Chem Commun, 2001, 1740~1741), this discovery effectively solves the problem of weak or no fluorescence of traditional organic...

Claims

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Application Information

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IPC IPC(8): C08G75/23C08J5/18C08L81/06C09K11/06
CPCC08G75/23C08J5/18C08J2381/06C09K11/06C09K2211/1425
Inventor 王贵宾骆昱超那睿琪朱凯张梦晗
Owner JILIN UNIV