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Fluorene water soluble conjugate polymer containing polyethyene diamine side chain and its use

A technology of conjugated polymers and polyethylenediamine, which is applied in the field of water-soluble conjugated polymers, can solve the problems of lack of water-soluble conjugated polymers, and achieve the effects of high yield, good solubility and good thermal stability

Inactive Publication Date: 2005-10-19
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the soluble conjugated polymers are only soluble in non-polar organic solvents, and there is a lack of water-soluble conjugated polymers. There are no literature and patent reports on the polymers of fluorenes with side-linked polyethylamines and their applications in organic electrophoresis. Applications in Luminescence or Biosensors

Method used

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  • Fluorene water soluble conjugate polymer containing polyethyene diamine side chain and its use
  • Fluorene water soluble conjugate polymer containing polyethyene diamine side chain and its use
  • Fluorene water soluble conjugate polymer containing polyethyene diamine side chain and its use

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Embodiment Construction

[0020] The present invention and its synthesis method are further described below through examples.

[0021] 1. Synthesis of fluorene fragments with polyethylamine side chains

[0022] Where y>1, R stands for alkyl

[0023] The synthetic route of the fluorene segment with polyethylamine side chain is shown in formula (I).

[0024] The specific steps are as follows: dissolving dibromofluorenone (1) in anhydrous isopropanol, adding twice the amount of sodium borohydride and reacting at 60-90° C. for 24 hours. The product was extracted with ether and water, dried and filtered over anhydrous magnesium sulfate, and the solvent was evaporated to obtain the product (2); the product (2) and excess phosphorus tribromide were dissolved in anhydrous DMF, and stirred at 80-110°C under nitrogen protection , reacted for 4-6 hours, after the completion of the reaction, the product was extracted with ether and water, dried and filtered over anhydrous magnesium sulfate, and the solvent was...

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Abstract

The present invention provides water soluble conjugate fluorene polymer containing polyethylene diamine side chain as blue light material and its application in ink jet printer and organic light emitting biosensor, and belongs to the field of organic polymer semiconductor light emitting material. Fluorene has its site-9 and oxazolinyl are ring-opening polymerized in carbon cation path, hydrolyzed to form water soluble substitution side chain, and finally polymerized to form substituted fluorene and obtain water soluble blue light emitting display material. The product of the present invention has excellent light emitting performance, high water solubility, few influence of the side radical on the light emitting performance of the main chain, good heat stability and excellent charge transferring performance, and may be used as blue light emitting ink for jet printing and organic light emitting biosensor.

Description

technical field [0001] The invention relates to a class of water-soluble conjugated polymers containing fluorenes, and its application as a blue-light electroluminescent or photoluminescent material in organic flat panel displays and biosensors, belonging to the technical field of organic light-emitting displays and biosensors. 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 mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/06C09K11/06H05B33/14
Inventor 黄维徐宁
Owner FUDAN UNIV
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