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A kind of preparation method of waterborne polyacrylate emitting room temperature phosphorescence

A technology for polyacrylate and polyacrylate emulsion, which is applied in the field of polyacrylate preparation, can solve the problems of restricting large-scale popularization and application, poor acid and alkali resistance, high price, etc., and achieves advantages of large-scale production and low cost. , Long-lasting and stable luminous performance

Active Publication Date: 2018-07-03
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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  • A kind of preparation method of waterborne polyacrylate emitting room temperature phosphorescence
  • A kind of preparation method of waterborne polyacrylate emitting room temperature phosphorescence
  • A kind of preparation method of waterborne polyacrylate emitting room temperature phosphorescence

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 1. Add 2.1g 2-chloroanthraquinone, 2.0g N-methyldiethanolamine and 0.72g potassium hydroxide into a 50mL single-necked bottle, stir and heat up to 130°C for 10 hours; wait for the reaction system to cool to room temperature, put Pour the reactant into a 250mL beaker filled with 100mL distilled water and a magnetic stirrer, and 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 The product 2-[(2-hydroxyethyl)-methylamino]-anthraquinone has a yield of 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; -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, then s...

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 prepared above, 2g of BMA and 2g of HEA into the three-necked flask Emulsify in medium for 30 minutes; heat up the reaction system to 60°C, dissolve 0.4g AIBI in 10g distilled water; add AIBI aqueous solution, 8g butyl methacrylate and 8g hydroxyethyl acrylate mixed monomer into the three-necked flask for 2 hours The internal drop is completed; 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 ...

Embodiment 3

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

[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 ...

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Abstract

The invention discloses a preparation method of water-based polyacrylate capable of emitting room-temperature phosphorescence, which is characterized in that an acrylate monomer capable of emitting room-temperature phosphorescence is prepared first, and then emulsion is carried out with one or more common acrylate monomers Copolymerization, the phosphorescent chromophore is chemically keyed into the molecular chain of the water-based polyacrylate, so that the prepared water-based polyacrylate has the function of emitting phosphorescence at room temperature. The water-based polyacrylate that can emit phosphorescence at room temperature prepared by the method of the present invention is a pure organic photoluminescent polymer phosphorescent material that does not contain organic metal complexes. Its synthesis process is simple, low in cost, non-toxic, and pollution-free. The phosphorescent chromophore content can be controlled at 1-10wt%, and the chromophore is embedded in the polyacrylate molecular chain in the form of chemical bonds, with low mobility, long-lasting luminescence, and a luminescence quantum yield of 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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Patent Type & Authority Patents(China)
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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