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Preparation method of water-borne polyacrylate for emitting room temperature phosphorescence

The technology of polyacrylate and polyacrylate emulsion is applied in the field of preparation of polyacrylate, which can solve the problems of restricting large-scale popularization and application, poor acid and alkali resistance, complex synthesis, etc. The effect of low mobility

Active Publication Date: 2016-07-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN101663339A discloses a polycarbazolyl (meth)acrylate light-emitting composition, but because it contains heavy metal elements such as iridium, platinum, gold, lead, tin, etc., it has high toxicity, high price, and complex synthesis and other defects
However, at present, water-based polyurethane is relatively expensive, and its acid and alkali resistance is slightly poor, which restricts its large-scale promotion and application.

Method used

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  • Preparation method of water-borne polyacrylate for emitting room temperature phosphorescence
  • Preparation method of water-borne polyacrylate for emitting room temperature phosphorescence
  • Preparation method of water-borne polyacrylate for emitting room temperature phosphorescence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Add 2.1g of 2-chloroanthraquinone, 2.0g of N-methyldiethanolamine and 0.72g of potassium hydroxide into a 50mL single-necked bottle, stir and raise the temperature to 130°C for 10 hours; after the reaction system is cooled to room temperature, the reactant Pour it into a 250mL beaker with 100mL of distilled water and a magnetic stirrer, stir rapidly for 1h; filter and collect the reddish-brown solid precipitate, recrystallize with ethanol or toluene to obtain 2.11g of pure reddish-brown solid intermediate 2 -[(2-Hydroxyethyl)-methylamino]-anthraquinone, yield 89%.

[0032]2. Add 1.69g 2-[(2-hydroxyethyl)-methylamino]-anthraquinone, 0.91g triethylamine and 15g dichloromethane into a 50mL single-necked bottle, stir at room temperature until the solid is completely dissolved; add 1.25g 2- Dissolve methacryloyl chloride in 5mL of dichloromethane, add it dropwise to the one-necked bottle under stirring at room temperature, and keep it for 30 minutes to complete the drop, ...

Embodiment 2

[0039] Add 1.21g of sodium lauryl sulfate and 30g of distilled water into a 150mL three-necked flask, stir and emulsify for 15 minutes; add 0.202g of the phosphorescent chromophore-containing acrylate ANAQ, 2gBMA and 2gHEA prepared above into the three-necked flask for emulsification 30 minutes; heat up the reaction system to 60°C, dissolve 0.4g AIBI in 10g distilled water; add the AIBI aqueous solution, 8g butyl methacrylate and 8g hydroxyethyl acrylate mixed monomer into the three-necked flask dropwise within 2 hours ; After 6 hours of heat preservation and stirring, a butyl methacrylate-hydroxyethyl acrylate-phosphorescent acrylate terpolymer (ANAQ-WPA-1) with an ANAQ content of 1 wt% can be obtained.

[0040] figure 2 It is the Fourier (Fourier) of the ternary copolymerized water-based polyacrylate that can emit room temperature phosphorescence prepared in this embodiment, that is, butyl methacrylate-hydroxyethyl acrylate-phosphorescent acrylate terpolymer (ANAQ-WPA-1). ...

Embodiment 3

[0042] Add 2g sodium lauryl sulfate and 30g distilled water into a 150mL three-necked flask, stir and emulsify for 15 minutes; add 2g of ANAQ, 2gBMA and 2g HEA prepared above into the three-necked flask for emulsification for 30 minutes; raise the temperature of the reaction system to 60°C, Dissolve 0.4g of AIBI in 10g of distilled water; drop AIBI aqueous solution, 7g of butyl methacrylate and 7g of hydroxyethyl acrylate mixed monomer into a three-necked flask and finish dropping within 2 hours; after insulated and stirred for 6 hours, the content of ANAQ obtained is 10% butyl methacrylate-hydroxyethyl acrylate-phosphorescent acrylate terpolymer (ANAQ-WPA-10); after film formation, a copolymerized water-based polyacrylate film emitting room temperature phosphorescence in vacuum can be obtained.

[0043] If other conditions remain unchanged and the mass ratio of phosphorescent acrylate monomer and comonomer is changed, a series of copolymerized water-based polyacrylates with di...

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Abstract

The invention discloses a preparation method of a water-borne polyacrylate for emitting room temperature phosphorescence. The preparation method is characterized by comprising the following steps: firstly an acrylate monomer capable of emitting the room-temperature phosphorescence is prepared; then emulsion copolymenzation on the acrylate monomer and one or a plurality of common acrylate monomers is carried out, so that a phosphorescence chromophore is embedded into molecular chains of the water-borne polyacrylate in a form of chemical bonds and the prepared water-borne polyacrylate has the function of emitting the phosphorescence at room temperature. The water-borne polyacrylate capable of emitting the room temperature phosphorescence prepared by using the method disclosed by the invention is an organometallic complex-free pure organic photoluminescence polymer phosphorescent material, is simple in a synthetic process, low in cost, non-toxic, pollution-free and wide in application range; the content of the phosphorescence chromophore can be controlled at 1-10 wt%, and the chromophore is embedded into the molecular chains of the water-borne polyacrylate in the form of the chemical bonds, and is low in migration rate and longlasting in light emission, and the yield of light-emitting quanta reaches 70%.

Description

technical field [0001] The invention belongs to the technical field of functional acrylates, and in particular relates to the synthesis of an acrylate monomer capable of emitting room temperature phosphorescence and the preparation method of using the monomer to perform emulsion copolymerization with other commonly used acrylate monomers to form a polyacrylate capable of emitting room temperature phosphorescence . Background technique [0002] Polymer phosphorescent materials can be divided into electroluminescence and photoluminescence, and their application value in organic electroluminescent devices, color-changing coatings, biological imaging and other fields has attracted more and more attention. Electroluminescent polymer phosphorescent materials are currently mostly prepared by blending organic transition metal complexes into the polymer matrix, or directly linking organic metal complexes to the main chain or side chain of the polymer through chemical bonds. Such pho...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/36C08F220/28C07C221/00C07C225/34C09K11/06
CPCC09K11/06C07C221/00C07C225/34C08F220/18C08F220/28C09K2211/1416C08F220/281C08F220/1804C08F220/36
Inventor 张兴元徐栋周操孙伟李军配戎佳萌
Owner UNIV OF SCI & TECH OF CHINA
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