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Blue color electroluminescent macromolecular material and method for making same

A polymer material and luminescent technology, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the practical gap and restrict the industrialization of polymer luminescent display screens and other problems

Active Publication Date: 2005-07-06
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, red light and green light polymer materials have met the requirements of practical application, while the indicators of blue light polymer materials, including color coordinates, efficiency, and service life, are still far from practical application. One of the main bottlenecks in the industrialization of polymer light-emitting display screens

Method used

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  • Blue color electroluminescent macromolecular material and method for making same
  • Blue color electroluminescent macromolecular material and method for making same
  • Blue color electroluminescent macromolecular material and method for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1: Synthesis of 2-(2-(4-amino-1,8-naphthalimide-9-)ethoxy)-5-hexyloxy-1,4-dibromobenzene

[0057] Under the protection of a gas atmosphere, 2.12g (10mmol) of 4-amino-1,8-naphthalimide was dissolved in 60ml of dimethyl sulfoxide, and then 0.56g (10mmol) of powdered hydroxide was added to the solution. Potassium, react at 120°C for ten minutes under electromagnetic stirring, then gradually add 4.59g (10mmol) 2-(2-bromoethoxy)-5-hexyloxy-1,4-dibromobenzene to the system, and react 14 Hours, repeated washing after chloroform extraction, drying, filtration, concentration, and column chromatography to separate the product to obtain the pure intermediate product 2-(2-(4-amino-1,8-naphthalimide-9-)ethoxy-1 -)-5-hexyloxy-1,4-dibromobenzene 3.59 g, yield 61%.

Embodiment 2

[0058] Example 2: Synthesis of 2-(2-(4-dimethylamino-1,8-naphthalimide-9-)ethoxy)-5-hexyloxy-1,4-dibromobenzene

[0059] Under the protection of -gas atmosphere, 0.590g (1mmol) 2-(2-(4-amino-1,8-naphthalimide-9-)ethoxy-1-)-5-hexyloxy-1 , 4-dibromobenzene was dissolved in 30 milliliters of dimethyl sulfoxide, then added 0.12 g (3 mmol) of 60% sodium hydride in the solution, reacted for 10 minutes at 60° C. under electromagnetic stirring, then added 2.840 g ( 20mmol) methyl iodide, reacted for 3 hours, washed repeatedly after chloroform extraction, dried, filtered, and the product was separated by column chromatography to obtain pure intermediate product 2-(2-(4-dimethylamino-1,8-naphthalimide- 9-) Ethoxy-1-)-5-hexyloxy-1,4-dibromobenzene 0.506 g, yield 82%.

Embodiment 3

[0060] Example 3: Synthesis of 2,5-bis(6-(4-amino-1,8-naphthalimide-9-)hexyloxy)-1,4-dibromobenzene

[0061] Under the protection of a gas atmosphere, 1.06g (5mmol) of 4-amino-1,8-naphthalimide was dissolved in 60ml of dimethyl sulfoxide, and then 0.84g (15mmol) of powdered potassium hydroxide was added to the solution , reacted at 30°C for ten minutes under electromagnetic stirring, then gradually added 1.366g (2.3mmol) 2,5-bis(6-bromohexyloxy)-1,4-dibromobenzene to the system, reacted for 14 hours, and chloroform After extraction, it was repeatedly washed, dried, filtered, and the product was separated by column chromatography to obtain the pure intermediate product 2,5-bis(6-(4-amino-1,8-naphthalimide-9-)hexyloxy-1-) -1,4-dibromobenzene 1.027g, yield 48%.

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Abstract

The invention relates to a blue color electroluminescent macromolecular material and method for making same, which comprises chemically grafting blue light or blue-green light fluorescent dye molecules with high fluorescence quantum efficiency to the parent body of the prussian blue macromolecules, dispersing at molecular level, regulating the relative content of the blue light or blue-green light fluorescent dye molecules in the parent body of the prussian blue macromolecules, thus realizing the part or complete energy transfer of prussian blue macromolecules to blue light or green light fluorescent dye molecules, enhancing the light emission of blue light or blue-green light fluorescence dye molecular elements, and achieving the ethereal blue electroluminescence of the macromolecular material, and constructing a categories of molecular dispersive type blue electroluminescent macromolecular materials.

Description

technical field [0001] The invention relates to a blue electroluminescent polymer material and a preparation method thereof. Background technique [0002] Since Burroughs et al. of the University of Cambridge reported the electroluminescent phenomenon of poly(p-phenylene vinylene) for the first time in 1990, polymer electroluminescent materials and devices have the advantages of simple process, low cost, and easy realization of large-screen display and flexible display. And other outstanding features have attracted extensive attention and investment from academia and industry. In order to realize the full-color display of polymer luminescence, it is urgent to develop electroluminescent polymer materials that can emit the three primary colors of red, green and blue. At present, red light and green light polymer materials have met the requirements of practical application, while the indicators of blue light polymer materials, including color coordinates, efficiency, and servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06
Inventor 王利祥刘俊程延祥耿延候
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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