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Macromolecular anti-blue light additive and preparation method thereof

An anti-blue light and macromolecular technology, which is applied in the field of optical materials, can solve the problems of poor compatibility, easy migration and precipitation, etc., and achieve the effects of high initiation efficiency, improved blue light absorption efficiency, and favorable energy transfer

Inactive Publication Date: 2022-05-24
DANYANG JINGTONG GLASSES TECH INNOVATION SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a macromolecule anti-blue light additive for the optical film in the prior art that needs to be added with a blue light absorber in the application of optical devices. Due to the defects of poor compatibility and easy migration and precipitation of the added blue light absorber , which uses 4-aminoazobenzene derivatives, difunctional epoxy compounds, 1,2-dibromoethane, bromoalkyl acid chlorides, 2-hydroxythioxanthone as raw materials, through ring opening, coupling , polycondensation and other multi-step reactions have obtained a macromolecular anti-blue light additive material, which has excellent blue light absorption, UV absorption, high refractive index, and does not migrate, and can be widely used in optical materials

Method used

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  • Macromolecular anti-blue light additive and preparation method thereof
  • Macromolecular anti-blue light additive and preparation method thereof
  • Macromolecular anti-blue light additive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0040] A preparation method of macromolecular anti-blue light auxiliary agent, comprising the following steps:

[0041](1) The difunctional epoxy compound was dissolved in acetone and placed in a flask, 4-aminoazobenzene (-R 1 : -H, -R 2 :-H) is dissolved in N,N-dimethylformamide and placed in a constant pressure dropping funnel, dripping at a constant speed, after dropping within 1h, stirring at room temperature for 1.5h, after vacuum concentration, slowly add deionized water, stirring 30min, then add dichloromethane, stir for 30min, stand for stratification, take the organic phase and dry it with anhydrous sodium sulfate, then filter (filter out the crystalline hydrate of sodium sulfate), and rotate to steam to obtain intermediate product I;

[0042] The dosage ratio of the difunctional epoxy compound, acetone, 4-aminoazobenzene, N,N-dimethylformamide, deionized water, dichloromethane, and anhydrous sodium sulfate is 1mol:200mL:2.2mol : 300mL: 400mL: 300mL: 30g;

[0043] ...

Embodiment 2

[0052] A preparation method of macromolecular anti-blue light auxiliary agent, comprising the following steps:

[0053] (1) The difunctional epoxy compound was dissolved in acetone and placed in a flask, N,N-dimethyl-4,4'-azodiphenylamine (-R 1 :-N(CH 3 ) 2 , -R 2 :-H) was dissolved in N,N-dimethylformamide and placed in a constant pressure dropping funnel, dripped at a constant rate, after dropping within 1h, stirred at room temperature for 2h, and concentrated in vacuo; slowly added deionized water and stirred for 30min , then add dichloromethane, stir for 30min, stand for stratification, take the organic phase and dry it with anhydrous sodium sulfate, then filter (filter out the crystalline hydrate of sodium sulfate), and rotate to steam to obtain intermediate product I;

[0054] The difunctional epoxy compound, acetone, N,N-dimethyl-4,4'-azodiphenylamine, N,N-dimethylformamide, deionized water, dichloromethane, anhydrous sulfuric acid The dosage ratio of sodium is 1mol...

Embodiment 3

[0064] A preparation method of macromolecular anti-blue light auxiliary agent, comprising the following steps:

[0065] (1) The difunctional epoxy compound was dissolved in acetone and placed in a flask, 4-amino-3'-methylazobenzene (-R 1 : -H, -R 2 :-CH 3 ) was dissolved in N,N-dimethylformamide and placed in a constant pressure dropping funnel, dripped at a constant rate, after dropping within 1 h, stirred at room temperature for 1.5 h, and concentrated in vacuo; slowly added deionized water, stirred for 30 min, and then Dichloromethane was added, stirred for 30min, left to stand for stratification, and the organic phase was dried with anhydrous sodium sulfate, then filtered (the crystalline hydrate of sodium sulfate was filtered out), and rotary steamed to obtain intermediate product I;

[0066] The dosage ratio of the difunctional epoxy compound, acetone, 4-amino-3'-methylazobenzene, N,N-dimethylformamide, deionized water, dichloromethane, and anhydrous sodium sulfate is:...

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Abstract

The invention belongs to the field of optical materials, and particularly relates to a macromolecular anti-blue-light additive and a preparation method thereof.The method comprises the steps that a 4-aminoazobenzene derivative, a bifunctional epoxy compound, 1, 2-dibromoethane, bromo-alkyl acyl chloride and 2-hydroxythioxanthone serve as raw materials; the macromolecular anti-blue-light additive material is obtained through a plurality of steps of reaction such as ring opening, coupling and polycondensation. The prepared macromolecular anti-blue-light additive can effectively overcome the defects of poor compatibility and easy migration and precipitation of an additive blue-light absorbent applied to optical devices in the prior art, also has excellent UV absorption and high refractive index, and can be widely applied to various optical materials.

Description

technical field [0001] The invention belongs to the field of optical materials, and in particular relates to a macromolecular anti-blue light auxiliary agent and a preparation method thereof. Background technique [0002] Studies have shown that the blue light band of displays including CRT displays, LED displays, QLED displays, OLED displays, and even laser light sources can penetrate the cornea and lens and reach the retina. Excessive exposure to blue light can cause retinal macular degeneration. Exacerbating chromatic aberration and visual blur, destroying vision. In particular, the high-energy blue light band (400-440nm) is more harmful to the human body, and it can inhibit melatonin, cause macular degeneration and affect the development of children's eyes. Therefore, anti-blue light technology to protect eyesight and protect eye health has become a topic of concern to the display industry. [0003] Anti-blue light technology refers to filtering out part of the high-en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02G02B5/22
CPCC08G73/0253G02B5/22
Inventor 陈广凯汤峰欧阳晓勇
Owner DANYANG JINGTONG GLASSES TECH INNOVATION SERVICE CENT
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