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High-molecular luminescent material of terbium-complex-grafted modified ethylene-acrylic acid copolymer and preparation method thereof

An ethylene acrylic acid copolymer, graft modification technology, applied in the directions of luminescent materials, chemical instruments and methods, can solve the problems of poor compatibility between rare earth fluorescent complexes and substrates, and achieve low price, mild reaction conditions, and thermal stability. good effect

Inactive Publication Date: 2018-07-24
SUZHOU DEJIE MEMBRANE MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a terbium complex grafted modified ethylene acrylic acid polymer polymer luminescent material and its preparation method to solve the problem of poor compatibility between the rare earth fluorescent complex and the matrix

Method used

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  • High-molecular luminescent material of terbium-complex-grafted modified ethylene-acrylic acid copolymer and preparation method thereof
  • High-molecular luminescent material of terbium-complex-grafted modified ethylene-acrylic acid copolymer and preparation method thereof
  • High-molecular luminescent material of terbium-complex-grafted modified ethylene-acrylic acid copolymer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] This implementation case shows a preparation method of a polymer luminescent material grafted with terbium complexes to modify ethylene acrylic acid copolymers, including:

[0043] (1) Weigh 0.37g terbium chloride hexahydrate, 0.42g p-aminobenzoic acid and 0.18g o-phenanthroline, dissolve them in ethanol respectively, mix the three solutions, and adjust the pH using 1mol / L sodium hydroxide solution to 5, stirred at 60° C. for 5 hours; dried in a vacuum oven at 60° C. for 5 hours to obtain a rare earth complex.

[0044] (2) Take 10cm 2 The ethylene acrylic acid copolymer film is placed in a 3% mass concentration of phosphorus pentachloride in dichloromethane solution, stirred and reacted for 24 hours, and dried in air to obtain the acyl chloride ethylene acrylic acid copolymer film.

[0045](3) Weigh 0.2g of rare earth complex, dissolve it in 20g of N,N-dimethylformamide, add 4g of triethylamine, add acyl chloride ethylene acrylic acid copolymer film, heat up to 60°C, k...

Embodiment 2

[0052] This implementation case shows a preparation method of a polymer luminescent material grafted with terbium complexes to modify ethylene acrylic acid copolymers, including:

[0053] (1) Weigh 0.37g terbium chloride hexahydrate, 0.53g p-aminobenzenesulfonic acid and 0.15g 8-hydroxyquinoline, dissolve them in ethanol respectively, mix the three solutions, and use 1mol / L potassium hydroxide solution Adjust the pH to 5, stir at 60° C. for 5 hours; dry in a vacuum oven at 60° C. for 5 hours to obtain a rare earth complex.

[0054] (2) Take 10cm 2 The ethylene acrylic acid copolymer film is placed in a 3% mass concentration of phosphorus pentachloride in dichloromethane solution, stirred and reacted for 24 hours, and dried in air to obtain the acyl chloride ethylene acrylic acid copolymer film.

[0055] (3) Weigh 0.1g of rare earth complex, dissolve it in 20g of N,N-dimethylformamide, add 2g of triethylamine, add acyl chloride ethylene acrylic acid copolymer film, heat up to ...

Embodiment 3

[0057] This implementation case shows a preparation method of a polymer luminescent material grafted with terbium complexes to modify ethylene acrylic acid copolymers, including:

[0058] (1) Weigh 0.37g terbium chloride hexahydrate, 0.50g ethyl p-aminobenzoate and 0.24g dibenzoylmethane, dissolve them in ethanol respectively, mix the three solutions, and use 1mol / L sodium bicarbonate The pH of the solution was adjusted to 5, stirred at 60° C. for 5 hours, and dried in a vacuum oven at 60° C. for 5 hours to obtain a rare earth complex.

[0059] (2) Take 10cm 2 The ethylene acrylic acid copolymer film is placed in a 3% mass concentration of phosphorus pentachloride in dichloromethane solution, stirred and reacted for 24 hours, and dried in air to obtain the acyl chloride ethylene acrylic acid copolymer film.

[0060] (3) Weigh 0.2g of rare earth complex, dissolve it in 30g of N,N-dimethylformamide, add 3g of triethylamine, add acyl chloride ethylene acrylic acid copolymer film...

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Abstract

The invention discloses a high-molecular luminescent material of terbium-complex-grafted modified ethylene-acrylic acid copolymer and a preparation method thereof. The preparation method comprises thefollowing steps: firstly adopting terbium chloride hexahydrate, an aminophenyl derivative and second ligand to prepare a rare-earth complex, then carrying out surface acylating-chlorination modification on an ethylene-acrylic acid copolymer film, and then utilizing the rare-earth complex to modify the acylating-chlorinated ethylene-acrylic acid copolymer film. The prepared luminescent material has a strong luminous peak in a 544nm-wavelength area, has good thermal stability, and is suitable for being applied to fluorescent packaging materials; in addition, the preparation method has the advantages of low energy consumption, low requirements on equipment, environment-friendliness, low price and wide source of a used solvent, moderate reaction condition, and no need of high temperature andhigh pressure.

Description

technical field [0001] The invention belongs to the technical field of polymer luminescent materials, and in particular relates to a polymer luminescent material of terbium complex graft-modified ethylene acrylic acid copolymer and a preparation method thereof. Background technique [0002] Because of their special electron layer structure, rare earths have spectral properties unmatched by general elements. Atoms of rare earth elements have unfilled 4f-5d electronic configurations that are shielded by the outside world, so there are abundant electronic energy levels and long-lived excited states, and there are more than 200,000 energy level transition channels, which can produce a variety of radiation Absorb and emit, constituting a wide range of luminescent and lasing materials. The luminescence of rare earth compounds is based on the transition of their 4f electrons within the f-f configuration or between the f-d configurations. Rare earth atoms or ions with unfilled 4f s...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08J7/12C08F8/18C08F210/02C09K11/06C08L23/08C08L23/32
CPCC08F8/18C08J5/18C08J7/12C08J2323/08C08J2323/32C09K11/06C09K2211/182C08F210/02
Inventor 马忠吴越文谢洪德
Owner SUZHOU DEJIE MEMBRANE MATERIAL SCI & TECH
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