Inorganic-organic core-shell type rare earth high polymer material and its preparation method

A technology of polymer materials and rare earth ions, which is applied in the field of core-shell rare earth complexes and their preparation, can solve the problems of weak coordination bonding force and the overall content of rare earth light energy conversion agents, etc., and achieves high transparency and strong fluorescence. Luminescent properties, effect of long fluorescence lifetime

Inactive Publication Date: 2007-05-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the main reasons why organic rare earth complexes are easy to precipitate in materials is that rare earth ions and ligands are connected in the form of coordination bonds. Due to the weak bonding force of coordination bonds, rare earth ions are very weak under external conditions. It is easy to dissociate from the ligand, so that the ligand, rare earth ions, etc. are precipitated from the material, resulting in a decrease in the overall content of the rare earth light energy conversion agent

Method used

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  • Inorganic-organic core-shell type rare earth high polymer material and its preparation method
  • Inorganic-organic core-shell type rare earth high polymer material and its preparation method

Examples

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Effect test

Embodiment 1

[0024] 1. Preparation of p-methoxybenzoic acid organic rare earth complex dispersion emulsion

[0025] (1) Preparation of p-methoxybenzoic acid organic rare earth complexes

[0026] Weigh 0.1mmol of Eu 2 o 3 Place in a beaker, add excess 1:6 dilute HCl until the rare earth oxide is completely dissolved, evaporate to near dryness at 50-60°C, and the obtained substance is 0.1mmol EuCl 3 . Then put its substance in a beaker and add 10ml of ethanol to dissolve it. In addition, 0.1mmol of 1,10-phenanthroline (phen) and 0.3mmol of p-methoxybenzoic acid ligand (L) were weighed and placed in a conical flask, and 20ml of ethanol was added to fully dissolve, and mixed and stirred at room temperature for 20 Minutes later, will contain 0.1mmol EuCl 3 Pour the ethanol solution into the Erlenmeyer flask. After stirring evenly, add ammonia water dropwise to adjust the pH value of the solution (6-12) until precipitation occurs. Stir at a constant speed at room temperature for 1 hour unti...

Embodiment 2

[0031]The invention is mainly completed in two parts, one is the preparation of the dispersion emulsion of the anthranilic acid organic rare earth complex, and the other is the preparation of the core-shell type organic rare earth complex / PMMA organic rare earth polymer light energy conversion agent.

[0032] 1. Preparation of anthranilic acid organic rare earth complex dispersion emulsion

[0033] (1) Preparation of organic rare earth complexes of anthranilic acid

[0034] Weigh 5mmol of Sm 2 o 3 Place in a beaker, add excess 1:6 dilute HCl until the rare earth oxide is completely dissolved, evaporate to near dryness at 50-60°C, and the obtained substance is 0.1mmol SmCl 3 . Then put its substance in a beaker and add 10ml of ethanol to dissolve it. In addition, weigh 0.1mmol of 1,10-phenanthroline (phen) and 0.3mmol of anthranilic acid ligand (L) and place them in a conical flask, add 20ml of ethanol to fully dissolve, and mix and stir for 20 minutes at room temperature ...

Embodiment 3

[0039] The invention is mainly completed in two parts, one is the preparation of the m-toluic acid organic rare earth complex dispersion emulsion, and the other is the preparation of the core-shell type organic rare earth complex / PMMA organic rare earth polymer light energy conversion agent.

[0040] 1. Preparation of m-toluic acid organic rare earth complex dispersion emulsion

[0041] (1) Preparation of organic rare earth complexes of m-toluic acid

[0042] Weigh 5mmol of Eu 2 o 3 Place in a beaker, add excess 1:6 dilute HCl until the rare earth oxide is completely dissolved, evaporate to near dryness at 50-60°C, and the obtained substance is 0.1mmol EuCl 3 . Then put its substance in a beaker and add 10ml of ethanol to dissolve it. In addition, weigh 0.1mmol of 1,10-phenanthroline (phen) and 0.3mmol of m-toluic acid ligand (L) and place them in a conical flask, add 20ml of ethanol to fully dissolve, and mix and stir for 20 minutes at room temperature After, will contai...

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Abstract

The invention relates to a preparation method for an inorganic-organic core-shell rare-earth (RE) polymer material, wherein core-shell RE-organic complex is a ternary RE-organic complexes LnM1 (M2R') 3R synthesized by a single substituted-benzoic acid compounds (L) and 1, 10-phenanthroline as ligand, as shown in the right figure. The said method includes: (1) preparation of organic RE complexes, (2) preparation of organic RE complexes emulsion, and (3) preparation of core-shell organic RE complexes/PMMA organic RE polymer light-conversion agent. The RE polymer composite has excellent characteristics of high optical conversion efficiency, strong fluorescence, longer fluorescence lifetime and complexes of high transparency, and can be used as a new optical materials in agriculture, biology, electrical and electronics, etc. arious fields. The preparation process is simple.

Description

technical field [0001] The invention relates to a core-shell type rare earth complex and a preparation method thereof, in particular to an inorganic-organic core-shell type rare earth polymer material and a preparation method thereof. Background technique [0002] Inorganic-organic nanocomposites are promising new materials in the field of modern scientific research. In recent years, in some research reports, it is introduced that the polymer material is coated on the surface of inorganic particles by surface treatment technology and polymer synthesis method to prepare an inorganic-organic core-shell organic rare earth polymer light energy conversion agent, which can not only make inorganic Particles are not disturbed by the external environment, and also play an important role in preventing inorganic particles from agglomerating each other, improving the optical properties, electrical properties, thermal properties, magnetic properties, surface p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/44C08F120/14C08K5/56C09K11/06
Inventor 西鹏顾晓华黄象安何玉鲜
Owner DONGHUA UNIV
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