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Comb type high molecular luminous material and its preparing method

A technology of polymer materials and molecules, which is applied in the field of comb-shaped polymer luminescent materials and its preparation, can solve problems such as poor luminous color purity and affecting luminous color purity and luminous efficiency, and achieve the goals of reducing energy transfer, solving accumulation, and improving efficiency Effect

Inactive Publication Date: 2005-03-02
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main problem is that due to the interaction between the polymer chain segments, the purity of the luminescent color is poor, and there is unpredictable energy transfer in the luminescent layer, especially the blue light band with higher energy, which is very easy to combine with other lower energy bands. Energy transfer occurs in the luminescent band, which affects the color purity and luminous efficiency of the luminescence

Method used

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  • Comb type high molecular luminous material and its preparing method
  • Comb type high molecular luminous material and its preparing method
  • Comb type high molecular luminous material and its preparing method

Examples

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Effect test

Embodiment 1

[0039] Embodiment 1, the preparation of light-emitting polymer containing carbazole

[0040] 1. Synthesis of 2,7-bisboronate-9,9'-dioctyl-fluorene monomer

[0041] Add 2,7-dibromofluorene 1 and a catalytic amount of tetrabutylammonium chloride into a 250ml double-necked bottle, seal it, and perform anhydrous and oxygen-free treatment. Then use a syringe to inject DMSO (dimethyl sulfoxide), heat and stir. Then inject 50% NaOH aqueous solution and heat to 80°C, the solution changes from a colorless transparent solution to a purple-red solution. After stirring for 5 minutes, 1-octyl bromide was injected. The mixture was kept under reflux at 80°C overnight, and a large amount of white solid precipitated out. Cool to room temperature, add HCl (2.0M) to adjust the pH value to neutral, the white solid disappears, and a large number of bubbles are generated. After the reaction is complete, add 100ml of dichloromethane for extraction, wash with saturated brine and wash with anhydro...

Embodiment 2

[0050] Embodiment 2, preparation containing quinoline light-emitting polymer

[0051] 1. Synthesis of 2,7-bisboronate-9,9'-dioctyl-fluorene monomer

[0052] Add 2,7-dibromofluorene 1 and a catalytic amount of tetrabutylammonium chloride into a 250ml double-necked bottle, seal it, and perform anhydrous and oxygen-free treatment. Then use a syringe to inject DMSO (dimethyl sulfoxide), heat and stir. Then inject 50% NaOH aqueous solution and heat to 80°C, the solution changes from a colorless transparent solution to a purple-red solution. After stirring for 5 minutes, 1-octyl bromide was injected. The mixture was kept under reflux at 80°C overnight, and a large amount of white solid precipitated out. Cool to room temperature, add HCl (2.0M) to adjust the pH value to neutral, the white solid disappears, and a large number of bubbles are generated. After the reaction is complete, add 100ml of dichloromethane for extraction, wash with saturated brine and wash with anhydrous MgSO...

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Abstract

The present invention relates to one kind of comb type high molecule luminous material and its preparation process. The aromatic compound with charge transferring radical as material is synthesized into serial conjugate copolymers in comb structure via organic metal catalyzed reaction. The produced compounds has excellent light emitting performance and are efficient stable high molecule light emitting material. These high molecule compounds have no merit of long chain conjugate high molecule aggregate problem, so that its solid or coated film has single molecule light emitting characteristics the same as in its solution, such as stable light emitting position, high light emitting efficiency, etc.

Description

technical field [0001] The invention belongs to the technical field of electroluminescent materials, and in particular relates to a comb-shaped polymer luminescent material and a preparation method thereof. Background technique [0002] After 20 years of development, conjugated polymers have become a relatively mature and comprehensive interdisciplinary subject. Conjugated polymers have great potential commercial applications due to the combination of processability and flexibility of polymers, as well as inorganic semiconducting properties or metal conductivity. At present, conjugated polymers have been used as flexible display materials, electrodes, electromagnetic wave shielding, antistatic materials, polymer batteries and light-emitting batteries, light-emitting diodes, laser materials and magnetic materials. Among them, it is most widely used in flexible display materials. [0003] At present, the main problem that plagues the improvement of the luminescent performanc...

Claims

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Application Information

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IPC IPC(8): C09K11/06
Inventor 黄维范曲立郑喆
Owner FUDAN UNIV
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