Conjugate light-emitting polymer with antioxidant group in the side chain and its application

A light-emitting polymer and anti-oxidant technology, applied in the direction of light-emitting materials, electroluminescent light sources, light sources, etc., can solve the problems of no patents and literature reports, and achieve excellent anti-oxidant aging performance, good thermal stability, and wide coverage Effect

Inactive Publication Date: 2005-09-28
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few patents and literature reports in this area

Method used

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  • Conjugate light-emitting polymer with antioxidant group in the side chain and its application
  • Conjugate light-emitting polymer with antioxidant group in the side chain and its application
  • Conjugate light-emitting polymer with antioxidant group in the side chain and its application

Examples

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Embodiment Construction

[0019] The following examples further introduce the material and its synthesis method.

[0020] 1. Synthesis of Ar active unit fragments of aromatic heterocycles.

[0021]

[0022] The synthetic route of the Ar active unit fragment of the aromatic heterocycle is shown in formula (I).

[0023] The specific steps are: dissolve substance 1 in anhydrous n-hexane, cool to -78°C with dry ice, slowly add n-butyllithium of the same amount as the substance, stir, and maintain -78°C for 1 hour to form monobrominated aryllithium Salt, raise the temperature slowly, and feed dry carbon dioxide gas at the same time, react for 2-6 hours, separate the reaction liquid with water and dichloromethane, take the water layer, add enough dilute hydrochloric acid, evaporate the water, and pass through the silica gel column with ethyl acetate Separated to give product 2. Product 2 was dissolved in excess thionyl chloride, reacted at 60-100°C for 3 hours, distilled under reduced pressure, and thio...

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Abstract

The present invention is one kind of conjugate light-emitting polymer with antioxidant group in the side chain and its application in organic electroluminescence, and belongs to the field of organic polymer semiconductor light-emitting material technology. Thiophene, fluorene, carbazole or other aromatic ring side radical is used to connect phenol antioxidant to form monomer with antioxidant side radical, and the monomer is finally polymerized to produce organic light-emitting display material with antioxidant side radical. The product of the present invention has excellent light emitting performance and antioxidant ageing performance, and its antioxidant side radical has few influence on the light emitting performance of the main chain. The product has high heat stability and excellent charge transmission performance and may be used as organic electroluminescent display material.

Description

technical field [0001] The invention relates to a conjugated light-emitting polymer with antioxidant groups in side chains and its application as an electroluminescent material in organic flat panel displays, belonging to the technical field of organic light-emitting displays. technical background [0002] Since 1990, when Friend R.H. of Cambridge University and others first developed the organic electroluminescent material (OLED) of polyvinylphenylene structure, it has triggered an upsurge in the research of organic flat panel display materials and devices in the fields of materials science and information technology. Organic luminescent material is a self-luminous, high-brightness, full-color display functional material. It has good film-forming flexibility, light weight, low driving voltage, and fast response speed. It has an attractive prospect in the field of flat panel display. Scientists from various countries and more than 80 large companies are making unremitting ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06H05B33/14
Inventor 黄维徐宁朱旭辉
Owner FUDAN UNIV
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