Method for preparing polymethylacrylic acid functionalized rare-earth polymer composite luminescent material

A polymethacrylic acid, functional polymer technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of poor light and thermal stability, affect optical properties, limit applications, etc., and achieve easy processing and operability. Strong and stable product quality

Inactive Publication Date: 2013-07-17
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the f-f transition of rare earth ions is forbidden, it shows very weak absorption in the visible and ultraviolet regions, which greatly affects its optical properties.
Although rare earth complexes can overcome this weakness to a certain extent, pure rare earth complexes often have the disadvantages of poor light and thermal stability, which limits their application in real life.

Method used

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  • Method for preparing polymethylacrylic acid functionalized rare-earth polymer composite luminescent material
  • Method for preparing polymethylacrylic acid functionalized rare-earth polymer composite luminescent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Dissolve 0.258g of methacrylic acid and 0.148g of vinyltrimethoxysilane in 10mL of absolute ethanol, add them into a three-necked flask, and heat to 70-80°C. Then, an absolute ethanol solution dissolved with 0.01 g of the initiator benzoyl peroxide was added dropwise into the three-necked flask. The whole solution is controlled at 70-80°C, stirred and reacted for 10 hours under the protection of nitrogen, cooled, and evaporated to dryness of organic solvent and polymer monomer not participating in the reaction, and a white solid is obtained. Subsequently, the obtained white solid was dissolved in 10 mL of N,N-dimethylformamide (DMF) and placed in another flask, and a solution of 0.338 g of europium nitrate in absolute ethanol was added dropwise, and then 0.36 g of , 10-phenanthroline, stirring for 5 hours at a temperature of 20-30°C. Then, tetraethyl orthosilicate and deionized water are added dropwise to adjust the pH value to 6-7. The molar ratio of methacrylic acid...

Embodiment 2

[0024] Dissolve 0.258g of methacrylic acid and 0.148g of vinyltrimethoxysilane in 10mL of absolute ethanol, add them into a three-necked flask, and heat to 70-80°C. Then, an absolute ethanol solution dissolved with 0.01 g of the initiator benzoyl peroxide was added dropwise into the three-necked flask. The whole solution is controlled at 70-80°C, stirred and reacted for 10 hours under the protection of nitrogen, cooled, and evaporated to dryness of organic solvent and polymer monomer not participating in the reaction, and a white solid is obtained. Subsequently, the obtained white solid was dissolved in 10 mL of N,N-dimethylformamide (DMF) and placed in another flask, a solution of 0.345 g of terbium nitrate in absolute ethanol was added dropwise, and then 0.36 g of 1 , 10-phenanthroline, stirring for 5 hours at a temperature of 20-30°C. Then, tetraethyl orthosilicate and deionized water are added dropwise to adjust the pH value to 6-7. The molar ratio of methacrylic acid, t...

Embodiment 3

[0026] Dissolve 0.315g of 4-vinylpyridine and 0.148g of vinyltrimethoxysilane in 10mL of absolute ethanol, add them into a three-necked flask, and heat to 70-80°C. Then, an absolute ethanol solution dissolved with 0.01 g of the initiator benzoyl peroxide was added dropwise into the three-necked flask. The whole solution is controlled at 70-80° C., stirred and reacted for 10 h under the protection of nitrogen, cooled, evaporated to dryness of the organic solvent and the polymer monomer not participating in the reaction, and a solid is obtained. Subsequently, the obtained solid was dissolved in 10 mL of N,N-dimethylformamide (DMF) and placed in another flask, a solution of 0.338 g of europium nitrate in absolute ethanol was added dropwise, and then 0.36 g of 1, 10-Phenanthroline, stirred for 5 hours at a temperature of 20-30°C. Then add tetraethyl orthosilicate and deionized water dropwise to adjust the pH value to 6-7. The ratio is 1:1:2:6:12. The whole solution is at a temp...

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Abstract

The invention belongs to the field of rare-earth polymer composite luminescent materials and in particular relates to a method for preparing a polymethylacrylic acid functionalized rare-earth polymer composite luminescent material. A functional polymer is prepared through addition polymerization; a rare-earth ion is compounded to a polymer chain through a coordinate bond to prepare a rare-earth polymer compound; and the obtained compound is embedded in a Si-O network substrate by a sol-gel method. On the basis, in order to improve the optical performances of the material, an organic micromolecule is further introduced into the system to obtain the rare-earth polymer composite luminescent material with stable chemical and thermodynamic properties and characteristic fluorescence-emission. The experiment condition of the method is mild; the operability is strong; and the quality of the obtained product is stable.

Description

technical field [0001] The invention belongs to the technical field of preparation of rare earth polymer composite luminescent materials, and in particular relates to a preparation method of polymethacrylic acid functionalized rare earth polymer composite luminescent materials. Background technique [0002] With the rapid development of science and technology, people's requirements for the performance of materials are also continuously increasing. Traditional materials are increasingly unable to meet people's needs. In recent years, with the emergence and development of composite materials, these needs of people are being continuously met. The biggest advantage of composite materials is that it can combine the advantages of several different materials, which greatly expands the scope of application of materials in practice. [0003] Rare earth elements have a special electronic shell structure, so they exhibit excellent optical properties. my country is rich in rare e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C08F220/06C08F230/08C08K3/28C08K3/36
Inventor 闫冰王小龙王畅李亚娟
Owner TONGJI UNIV
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