Side-hanging type polymethyl methacrylate rare earth complex luminescent material and preparation method thereof

A technology of polymethyl methacrylate and rare earth complexes, applied in the directions of luminescent materials, chemical instruments and methods, can solve the problems of difficult coordination, fluorescence quenching, limited types, etc., and achieves elimination of concentration quenching effect and fluorescence. Increased intensity, less interference with purity

Inactive Publication Date: 2015-04-08
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the luminescent material prepared by this method, the distribution of rare earth ions is uniform, and it is not easy to form clusters. When the content of rare earth ions is high, the phenomenon of concentration quenching still does not appear. Limited and high cost, thus limiting its large-scale application
The advantage of this method is that the synthesis method is simple, the choice of raw materials is wide, and various types of fluo

Method used

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  • Side-hanging type polymethyl methacrylate rare earth complex luminescent material and preparation method thereof
  • Side-hanging type polymethyl methacrylate rare earth complex luminescent material and preparation method thereof
  • Side-hanging type polymethyl methacrylate rare earth complex luminescent material and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0035] Example 1

[0036] The pendant type polymethyl methacrylate rare earth complex luminescent material is based on the polymethyl methacrylate random copolymer with pendant aromatic carboxylic acid as the polymer ligand, and o-phenanthroline as the co-ligand, and Rare earth europium ions are coordinated in N,N-dimethylformamide; among them, the structural formula of the polymer ligand is Di-poly(MMA-ran-HEA)-92%, the structure unit of methyl methacrylate The mole fraction is 0.92.

[0037] The preparation method of the above-mentioned pendant-type polymethyl methacrylate rare earth complex luminescent material is: 1g of polymer ligand Di-poly(MMA-ran-HEA)-92% (containing 1.37mmol of carboxyl group), 0.247g of phenanthrene Pornoline (1.37mmol) and 0.354g europium trichloride (1.37mmol) were added to the reaction flask, 10mL of N,N-dimethylformamide was added, stirred at room temperature to dissolve; then 0.15g of triethylamine was added, at room temperature The reaction was st...

Example Embodiment

[0040] Example 2

[0041] Substitute the polymer ligand Di-poly(MMA-ran-HEA)-92% in Example 1 with the polymer ligand Di-poly(MMA-ran-HEA)-90%, other raw material feed ratios, reaction conditions and treatment The steps are the same as in Example 1.

[0042] The side-mounted polymethyl methacrylate europium complex luminescent material of the product obtained in this example is in powder form, and the yield is 94.8%. The fluorescence spectrum is shown in image 3 .

Example Embodiment

[0043] Example 3

[0044] Pendant polymethyl methacrylate rare earth complex luminescent material is based on polymethyl methacrylate random copolymer with pendant aromatic carboxylic acid as the polymer ligand, and 2,2'-bipyridine as the co-coordination It is obtained by coordination with rare earth terbium ion in N,N-dimethylacetamide; among them, the structural formula of the polymer ligand is Tri-poly(MMA-ran-HEA)-92%, methyl methacrylate The mole fraction of the structural unit is 0.92.

[0045] The preparation method of the above-mentioned pendant-type polymethyl methacrylate rare earth complex luminescent material is: 1g of polymer ligand Tri-poly(MMA-ran-HEA)-92% (containing 1.37mmol of carboxyl group), 0.43g 2, 2'-Bipyridine (2.75mmol) and 0.58g terbium trichloride (2.20mmol) were added to the reaction flask, 10mL N,N-dimethylacetamide was added, stirred at room temperature to dissolve; then 0.25g tributyl Amine, stirred and reacted at 60°C for 4 hours; after the reactio...

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Abstract

The invention discloses a side-hanging type polymethyl methacrylate rare earth complex luminescent material and a preparation method thereof, belongs to the field of high polymer materials, and in particular relates to a side-hanging type polymethyl methacrylate rare earth complex luminescent material and a preparation method thereof. The side-hanging type polymethyl methacrylate rare earth complex luminescent material is obtained by taking polymethyl methacrylate random copolymer of side-hanging aromatic carboxylic acid as a high polymer ligand and organic small molecules as a co-ligand to perform coordination with rare earth ions in an organic solvent. According to the side-hanging type polymethyl methacrylate rare earth complex luminescent material disclosed by the invention, because the luminescent center of the material is side-hung on a high polymer main chain, and flexible high polymers wrap the luminescent center and are separated from the luminescent center, a concentration quenching effect is effectively eliminated, and the fluorescence intensity of the luminescent material can be enhanced along with the increase of the rare earth content; and moreover, a matrix polymer has good transparency, has good solubility in various organic solvents, can be prepared into solid powder, a transparent film or nano fibers, can emit fluorescent light of various colors under ultraviolet irradiation, and can be applied to the fields of anti-counterfeiting mark materials, display materials and the like.

Description

technical field [0001] The invention belongs to the field of functional polymer materials, and relates to a side-hanging polymethyl methacrylate rare earth complex luminescent material and a preparation method thereof. Background technique [0002] Rare earth elements are known as a treasure house of new materials because of their rich electronic energy levels and 4f electronic transition characteristics, which make them have optical, electrical, magnetic and catalytic properties. Rare earth fluorescent materials prepared with rare earth ions as the luminescent center have the advantages of high light conversion efficiency, narrow-band emission, and long life. application. However, rare earth inorganic materials and small molecule rare earth complexes have problems such as difficult processing and high price, which limit the wider application of rare earth luminescent materials. Polymer materials have the advantages of abundant sources, convenient synthesis, light weight, ...

Claims

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Application Information

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IPC IPC(8): C09K11/77C09K11/06
Inventor 郭俊芳呙冰心郑华明李亮鄢国平
Owner WUHAN INSTITUTE OF TECHNOLOGY
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