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Bonding type polymer-rare earth ternary complex luminescent material and preparation method thereof

A technology of ternary complexes and rare earth complexes, which is applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of difficult processing, poor matrix compatibility, and poor stability of small-molecule rare earth organic complexes, and achieves enhanced luminescence. performance, good mechanical properties, good chemical stability and the effect of processability

Inactive Publication Date: 2013-04-03
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, small molecular rare earth organic complexes have disadvantages such as poor stability, poor compatibility with the matrix, and difficulty in processing and molding, which greatly limit their applications.

Method used

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  • Bonding type polymer-rare earth ternary complex luminescent material and preparation method thereof
  • Bonding type polymer-rare earth ternary complex luminescent material and preparation method thereof
  • Bonding type polymer-rare earth ternary complex luminescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: In a 100mL Erlenmeyer flask, 0.213mmol of o-phenanthroline was dissolved in 25mL of solvent dimethylformamide, the pH was adjusted to 6-7 with NaOH solution, and then 0.213mmol of europium trichloride crystals were added , heated to 50°C, reacted at constant temperature for 3.5 hours, and became solution I; weighed 0.639 mmol of naphthoic acid functionalized polysulfone (PSFNA) and dissolved it in 25 mL of dimethylformamide, and adjusted the pH to 6-7 with NaOH solution to become Solution II; solution I and solution II are mixed, heated to 50°C, and reacted at a constant temperature for 8 hours. After the reaction, the polymer is precipitated with ethanol, washed with water, and dried to obtain a bonded polymer-rare earth ternary complex luminescent material PSF- (NA) 3 -Eu(Ⅲ)-(Phen) 1 . Dissolve the prepared ternary complex in chloroform, cast it into a film, and after drying, use 343nm as the excitation wavelength to measure its fluorescence emission spec...

Embodiment 2

[0027] Example 2: In a 100mL Erlenmeyer flask, dissolve 0.2mmol of 2,2'-bipyridine in 15mL of solvent dimethylacetamide, adjust the pH to 6-7 with NaOH solution, and then add 0.213mmol of trichloro Europium crystals were formed, heated to 55°C, and reacted at constant temperature for 3 hours to form solution I; then weighed 0.62 mmol of naphthoic acid functionalized polysulfone (PSFNA) and dissolved it in 35 mL of dimethylacetamide, and adjusted the pH with NaOH solution to 6- 7. Become solution II; mix solution I and solution II, heat up to 55°C, and react at a constant temperature for 7 hours. After the reaction, the polymer is precipitated with ethanol, washed with water, and dried to obtain a bonded polymer-rare earth ternary complex that emits light. MaterialPSF-(NA) 3 -Eu(Ⅲ)-(Bipy) 1 . Dissolve the prepared ternary complex in chloroform, cast it into a film, and after drying, use 343nm as the excitation wavelength to measure its fluorescence emission spectrum, see Fi...

Embodiment 3

[0028] Example 3: In a 100mL Erlenmeyer flask, dissolve 0.21mmol of o-phenanthroline in 20mL of solvent dimethyl sulfoxide, adjust the pH=6-7 with NaOH solution, and then add 0.213mmol of europium trichloride crystals , heated to 55°C, and reacted at constant temperature for 3 hours to form solution I; then weighed 0.65 mmol of naphthoic acid-functionalized polystyrene (PSNA) and dissolved it in 30 mL of dimethyl sulfoxide, and adjusted the pH to 6-7 with NaOH solution. Become solution II; solution I and solution II are mixed, heated to 45°C, and reacted at a constant temperature for 8 hours. After the reaction, the polymer is precipitated with ethanol, washed with water, and dried to obtain the bonded polymer-rare earth ternary complex luminescent material PS -(NA) 3 -Eu(Ⅲ)-(Phen) 1 . Dissolve the prepared ternary complex in chloroform, cast it into a film, and after drying, use 343nm as the excitation wavelength to measure its fluorescence emission spectrum, see Figure 5...

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Abstract

The invention belongs to the field of rare earth-macromolecule complex luminescent materials, and particularly relates to a bonding type polymer-rare earth ternary complex luminescent material and a preparation method thereof. The bonding type polymer-rare earth ternary complex luminescent material is prepared by coordinating rare earth ions with polymer of bonded naphthoic acid ligand serving as a macromolecule ligand and any one of naphthoic acid, phenanthroline, and 2,2'-diphridyl serving as a micromolecule ligand. Not only is the method easily realized, but also the performances of the material prepared can be greatly improved, the problems in the prior art that the rare earth complex are uneven to disperse, poor in performances of polymer matrix and the like can be solved, and the bonding type polymer-rare earth ternary complex luminescent material and the preparation method thereof can develop a new way for preparing novel rare earth-macromolecule complex luminescent materials.

Description

technical field [0001] The invention belongs to the field of rare earth-polymer composite luminescent materials, and in particular relates to a bonded polymer-rare earth ternary complex luminescent material and a preparation method thereof. Background technique [0002] Rare earth organic complex luminescent materials have the characteristics of good fluorescence monochromaticity, high luminous intensity, high internal quantum efficiency, and long fluorescence lifetime. They are a kind of luminescent materials with unique properties. Electroluminescent devices and other fields have important application prospects. However, the small molecular rare earth organic complexes have disadvantages such as poor stability, poor compatibility with the matrix, and difficulty in processing and molding, which greatly limit their applications. The rare earth organic complex is chemically bonded to the macromolecular chain to form a bonded polymer-rare earth complex luminescent material. T...

Claims

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Application Information

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IPC IPC(8): C09K11/06C08G75/20C08F12/08C08F8/42
Inventor 王蕊欣高保娇门吉英王明娟赵兴龙
Owner ZHONGBEI UNIV
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