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Three-color white light macromolecule luminescent material and method for preparing same

A technology of luminescent materials and polymers, applied in luminescent materials, chemical instruments and methods, sustainable buildings, etc., can solve the problems of background light sources that are not suitable for full-color display, and do not cover the visible light range.

Inactive Publication Date: 2005-06-29
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

However, the luminescent spectrum of the polymer is only composed of blue light and orange light, which does not cover the entire visible light range, and is not suitable for use as a background light source for full-color displays.

Method used

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  • Three-color white light macromolecule luminescent material and method for preparing same
  • Three-color white light macromolecule luminescent material and method for preparing same
  • Three-color white light macromolecule luminescent material and method for preparing same

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Example 1: 1,4-dibromo-2-hexyloxy-5-(2-(4-amino-1,8-naphthalimide-9-)ethoxy)benzene

[0027] Under the protection of nitrogen atmosphere, 4-amino-1,8-naphthalimide 5mmol (1.06g) was dissolved in dimethyl sulfoxide (60ml), then potassium hydroxide 6mmol (0.34g) was added to the solution, and electromagnetic stirring React at 120°C for ten minutes, then gradually add 5 mmol (2.31 g) of 2-hexyloxy-5-(2-bromoethoxy)-1,4-dibromobenzene to the system, react for 1 hour, and extract with chloroform After repeated washing, drying, filtration, and column chromatography to separate the product, the pure intermediate product 1,4-dibromo-2-hexyloxy-5-(2-(4-amino-1,8-naphthalimide-9 -) Ethoxy)benzene 2.06g, yield 70%.

Embodiment 2

[0028] Example 2: 1,4-dibromo-2-hexyloxy-5-(2-(4-diphenylamino-1,8-naphthalimide-9-)ethoxy)benzene

[0029] 1,4-dibromo-2-hexyloxy-5-(2-(4-amino-1,8-naphthalimide-9-)ethoxy)benzene 1.0mmol (0.589g), iodobenzene 2.0mmol (0.41g), potassium carbonate 2.0mmol (0.28g), 0.01mmol 18-crown-6 (0.003g), cuprous iodide 0.01mmol (0.002g), 1,3-dimethyl-3,4 , 5,6-tetrahydro-2-pyrimidinone (0.30 mL) was heated to 180° C. for 5 hours under nitrogen protection. After extraction with chloroform, it was washed repeatedly, dried, filtered, and the product was separated by column chromatography to obtain the pure intermediate product 1,4-dibromo-2-hexyloxy-5-(2-(4-diphenylamino-1,8-naphthalene Imide-9-)ethoxy)benzene 0.33 g, yield 45%.

Embodiment 3

[0030] Example 3: 2-(4-(N-phenyl-N-(4-methylphenyl)amino)phenyl)thiophene

[0031]2-Bromothiophene 20mmol (3.26g) ether solution (100ml) was slowly added dropwise to magnesium chips 30mmol (0.72g), then refluxed for 3 hours to obtain the ether solution of the Grignard reagent of 2-bromothiophene, and then Add 1-bromo-4-(N-phenyl-N-(4-methylphenyl)-amino)benzene 10mmol (3.38g) and 1,3-bis(diphenylphosphino)propane to this solution Combine nickel dichloride 0.1mmol (0.054g), reflux reaction for 24 hours, then pour the reaction system into dilute hydrochloric acid, wash with water several times, dry, concentrate, column separation, obtain the pure intermediate product 2-(4-(N- Phenyl-N-(4-methylphenyl)amino)phenyl)thiophene 1.50 g, yield 44%.

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Abstract

The invention relates to high molecular lightening material of a three-color white light and its preparing method. Based on the physical idea of 'synthesizing blue, green and red lights into white light', the green light sending unit and red light sending unit are polymerized into the blue light sending high molecular, realizing the dispersion of nucleus level of the green light and red light sending units in blue light sending high molecular, as well as movement of partial energy from the blue light sending unit to the green light and red light sending unit, by adjusting the content of green light and red light sending units to prevent the energy movement from green light sending to red light sending, resulting in realizing the synchronistically lightening of blue light, red light and green light sending unit, make the spectrum of electroluminescence cover the range of all visible light. By adjusting the relative strengths of blue light green light and red light, the while light sending of high molecular can be realized, forming a high molecular lightening material three-color white light.

Description

technical field [0001] The invention relates to a class of three-color white light polymer luminescent material and a preparation method thereof, belonging to the field of optoelectronic materials and technologies. technical background [0002] White electroluminescent polymer materials and devices have been widely concerned and highly valued by academia and industry because of their broad application prospects in liquid crystal display background light sources, lighting sources, and full-color displays. [0003] The realization of white-light polymer electroluminescent devices mainly includes three aspects: (1) organic luminescent dye / polymer blend system; (2) polymer / polymer blend system; (3) single polymer white light system . However, the white light polymer electroluminescent devices obtained by the above three methods all have the disadvantages of low luminous efficiency and unstable spectrum, which obviously restricts the research progress and industrial development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06
CPCY02B20/00
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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