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PMMA fluorescence copolymer microsphere and preparation method thereof

A copolymer and fluorescence technology, which is applied in the field of PMMA fluorescent copolymer microspheres, can solve the problems of poor oil solubility and unsuitability of fluorescent microspheres, and achieve the effects of long-lasting fluorescence, not easy to dissociate, and good compatibility

Inactive Publication Date: 2018-03-20
HUNAN CHENLI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the fluorescent microspheres of this invention have poor oil solubility and are not suitable for use in solvent systems

Method used

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  • PMMA fluorescence copolymer microsphere and preparation method thereof
  • PMMA fluorescence copolymer microsphere and preparation method thereof
  • PMMA fluorescence copolymer microsphere and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of PMMA fluorescent copolymer microspheres, the steps are as follows:

[0026] a. Synthesis of modified fluorescent monomer: under nitrogen protection, 30 parts of 2-aminoanthraquinone, 1 part of triethylamine, Add 100 parts of acetone to the reactor to dissolve evenly, slowly drop in 14 parts of methacryloyl chloride, drop it in 2 hours, then continue to react at 80°C for 6 hours, filter the insoluble matter, spin the solution to remove the solvent, wash and dry to obtain the modified fluorescence monomer.

[0027] b. Dispersion polymerization PMMA fluorescent copolymer microsphere dispersion liquid: 10 parts of modified fluorescent monomer in step (1) are dissolved in 40 parts of methyl methacrylate, add 2 parts of polyvinylpyrrolidone, 80 parts of water, Disperse evenly through a disperser at a high speed, and record it as liquid a; take 0.5 parts of ammonium persulfate and completely dissolve it in 10 parts of methanol solvent to obtain an init...

Embodiment 2

[0030] A preparation method of PMMA fluorescent copolymer microspheres, the steps are as follows:

[0031] a. Synthesis of modified fluorescent monomer: 30 parts of 1,2-diaminoanthraquinone, 0.5 part of three Add ethanolamine and 100 parts of DMF to the reactor to dissolve evenly, slowly drop in 10 parts of maleic anhydride for 1 hour, then continue to react for 4 hours at 120°C, filter the insoluble matter, spin evaporate the solution, remove the solvent, wash and dry to obtain the modified product fluorescent monomer.

[0032] b. Dispersion polymerization PMMA fluorescent copolymer microsphere dispersion liquid: 10 parts of modified fluorescent monomers in step (1) are dissolved in 40 parts of methyl methacrylate, add 0.8 parts of polyethylene glycol 800, 60 parts of water , disperse evenly through a disperser at high speed, and record it as liquid a; take 1.5 parts of AIBN and completely dissolve it in 15 parts of propanol solvent to obtain an initiator solution, which is ...

Embodiment 3

[0035] a. Synthesis of modified fluorescent monomer: under nitrogen protection, in a reaction kettle equipped with a stirrer, a condenser, a constant pressure feeding device and a thermometer, 30 parts of 2-naphthylamine, 2 parts of picoline, 100 Add 25 parts of DMSO into the reactor to dissolve evenly, slowly drop in 25 parts of p-vinylbenzoyl chloride, drop it over 1.2h, then continue the reaction at 95°C for 4.5h, filter the insoluble matter, spin the solution to remove the solvent, wash and dry to obtain Modified fluorescent monomer.

[0036]b. Dispersion polymerization of PMMA fluorescent copolymer microsphere dispersion liquid: dissolve 20 parts of the modified fluorescent monomer in step (1) in 40 parts of methyl methacrylate, add 1 part of TX305, 100 parts of water, and pass through the disperser Disperse evenly at high speed, and record it as liquid a; Dissolve 0.8 parts of sodium persulfate completely in 10 parts of water to obtain an initiator solution, which is rec...

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Abstract

The invention relates to a PMMA fluorescence copolymer microsphere and a preparation method thereof. The preparation method comprises the steps: firstly, performing vinylation on a micromolecule fluorescence monomer containing amino; then copolymerizing the PMMA fluorescence copolymer microsphere by utilizing a micromolecule unsaturated monomer containing fluorophores and methyl methacrylate. Therefore, the fluorophores can be tightly combined to polymethyl methacrylate resin through chemical bonds; the fluorescence copolymer microsphere has good intermiscibility with solvents of aromatic hydrocarbon, hydrochloric ether, aliphatic ketones, ester and the like and high fluorescence intensity; furthermore, the fluorophores are not prone to drifting away, and fluorescent time is durable. The fluorescent copolymer microsphere disclosed by the invention can be widely applied to the fields of fluorescence probes detection technologies, fluorescent chemical sensors, non-linear optical devices,fluorescent ink, fluorescent additives and the like.

Description

technical field [0001] The invention relates to PMMA fluorescent copolymer microspheres, in particular to a PMMA fluorescent copolymer microsphere and a preparation method thereof, belonging to the field of fluorescence technology. technical background [0002] Fluorescent small molecules are often easy to fall off during application and have poor compatibility with the substrate. For example, the traditional polymer dyeing process often cannot meet the requirements. Compared with fluorescent small molecules, fluorescent polymers have their own characteristics: chromophores are chemically bonded in polymers and are not easy to fall off; chromophores are evenly distributed, stable in content, and have good luminescence and light-conducting properties. Therefore, people have studied the method of introducing fluorescent small molecules into polymer chains to solve the problems of easy falling off and uneven distribution of fluorescent small molecules. Fluorescent polymers are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/70C08F222/38C08F212/32C09K11/02C09K11/06
CPCC08F220/14C09K11/025C09K11/06C09K2211/1011C08F220/70C08F222/385C08F212/32
Inventor 朱佳媚
Owner HUNAN CHENLI NEW MATERIAL CO LTD
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