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A kind of aiee side chain type polymer luminescent material with multiple stimuli responsiveness and its preparation method and application

A technology of multiple stimuli and luminescent materials, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of single stimulus responsiveness and low response to multiple stimuli

Active Publication Date: 2021-02-09
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Most of the currently reported stimuli-responsive light-emitting polymer materials only have single-stimulus responsiveness, and some reported polymer luminescent materials have dual-stimuli-responsiveness, while there are relatively few reports on homopolymer luminescent materials with multiple stimuli responses.

Method used

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  • A kind of aiee side chain type polymer luminescent material with multiple stimuli responsiveness and its preparation method and application
  • A kind of aiee side chain type polymer luminescent material with multiple stimuli responsiveness and its preparation method and application
  • A kind of aiee side chain type polymer luminescent material with multiple stimuli responsiveness and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. (Z)-4-(1-cyano-2-(3,4,5-tri(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)phenyl ) Vinyl) the preparation of phenoxy methyl methacrylate

[0046] Add (Z)-2-(4-hydroxyphenyl)-3-(3,4,5-tris(2-(2-(2-methoxyethoxy)ethoxy) into a 250mL single-necked bottle )ethoxy)phenyl)acrylonitrile (6.0g, 8.48mmol), refined triethylamine (1.29g, 12.75mmol) and 80mL of refined THF. A tetrahydrofuran solution of methacryloyl chloride (1.06 g, 10.14 mmol) was slowly added dropwise with stirring at room temperature. After the dropwise addition, the reaction solution was continued to react for 1 h at room temperature. Spot plate tracking, after the reaction is completed, filter to remove the hydrochloride of triethylamine, then extract the organic phase with water and dichloromethane, collect the organic phase, dry and rotary evaporate to obtain a light yellow liquid product. The yield was 95%.

[0047] 2. Preparation of asexual spacer polymer P1

[0048] In a 20mm×200mm (width×length) clean gla...

Embodiment 2

[0051] 1, the synthesis of polymer P1 is the same as in Example 1

[0052] 2. Dissolve the polymer P1 in water to form an aqueous solution with a concentration of 1.0mg / mL, 2.5mg / mL, 5.0mg / mL, 7.5mg / mL, and 10.0mg / mL. Polymer aqueous solutions with different concentrations are temperature-sensitive The polymer is soluble in water at low temperature, and the light transmittance of the solution is high, while at high temperature, the polymer and water undergo phase separation, and the light transmittance of the solution decreases. The LCST value of the polymer decreased with the increase of the polymer concentration.

Embodiment 3

[0054] 1, the synthesis of polymer P1 is the same as in Example 1

[0055] 2. Dissolve polymer P1 in water to make an aqueous solution with a concentration of 5.0 mg / mL. As the temperature increases, the luminous intensity of the polymer aqueous solution remains basically unchanged at first, then increases sharply, and then decreases again. The fluorescence of the polymer aqueous solution Temperature sensitivity makes it useful as a temperature detector.

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PUM

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Abstract

The invention discloses an AIEE side-chain polymer light emitting material with multiple stimulation responsiveness as well as a preparation method and an application of the AIEE side-chain polymer light emitting material. A side-chain polymer is prepared by reacting an acid such as (Z)-2-(4-hydroxyphenyl)-3-(3,4,5-tri(oligomeric oxyethylene monomethyl ether)acrylonitrile, saturated dihalide, methacrylic acid or acrylic acid containing double polymerizable bonds with acyl chloride such as methacryloyl chloride or acryloyl chloride containing double polymerizable bonds to generate a polymerizable monomer, and then, carrying out free radical polymerization. The side-chain polymer synthesized by using the preparation method not only shows a typical aggregation-induced fluorescence enhancementeffect, but also has responsiveness to temperature, ultraviolet light and ion strength, can be used for analysis and detection of a temperature detector and an inorganic salt and also has a potentialapplication value in fields such as controlled release of drugs and photoresponsive light emitting materials.

Description

technical field [0001] The invention belongs to the technical field of organic luminescent materials, and in particular relates to a class of AIEE side chain polymer luminescent materials with multiple stimulus responsiveness and its preparation method and application. Background technique [0002] The stimuli-responsive luminescent polymer material is a smart responsive polymer luminescent material. Compared with the traditional polymer luminescent material, the stimuli-responsive polymer luminescent material will have corresponding luminous intensity and luminous color when it receives an external stimulus. changes happened. Due to this unique property, it has potential application value in data storage, fluorescent anti-counterfeiting materials, detection of chemical substances, sensors and other fields. Most of the stimuli-responsive polymer light-emitting materials reported so far have only single-stimuli responsiveness, and some of the reported stimuli-responsive ligh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/36C09K11/06
CPCC08F120/36C09K11/06C09K2211/1425
Inventor 张海良袁勇杰李强军贺利芳卢鹏
Owner XIANGTAN UNIV
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