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Conjugated polymer containing nitrile phenylene ethylene and its application

A technology of nitrile phenylene vinylene and conjugated polymer, which can be applied in the fields of electrography, optics, instruments, etc., can solve the problems of lack of electron transport materials, no literature and patent reports on the application of copolymers, etc., and achieve electron transport properties. Good, good thermal stability, good solubility

Inactive Publication Date: 2004-12-22
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is a lack of electron transport materials for polyfluorenes, and there are no literature and patents reporting the copolymers of fluorene and CN-PPV and their applications in organic electroluminescence.

Method used

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  • Conjugated polymer containing nitrile phenylene ethylene and its application
  • Conjugated polymer containing nitrile phenylene ethylene and its application
  • Conjugated polymer containing nitrile phenylene ethylene and its application

Examples

Experimental program
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Embodiment Construction

[0020] Synthetic route such as figure 1 shown.

[0021] (1) 9,9-bis(2-ethylhexyl)fluorene (compound 2 for short)

[0022] Add 30mmol (4.98g) of fluorene (compound 1) into a 250mL three-necked flask, vacuumize and fill with argon for 30min, inject 95mL of diethyl ether, cool to -78°C with liquid nitrogen-acetone, add dropwise 30mmol (18.75mL) of 1.6M n-butyl Lithium n-hexane solution. After 2h, add 30mmol (5.79g) 2-ethylhexyl bromide-5mL Et 2 O, the reaction mixture was stirred at -78-20°C for 4h. Add 100mL deionized water to wash, extract with 50mL ether, and use anhydrous MgSO 4 Dry, remove the solvent, freeze-dry to give pale yellow oil (10.76g, 92%).Anal.Calcd for C 29 h 42 : C, 89.16; H, 10.84.Found: C, 88.67; H, 10.98%.m / z(EI)390(M + ). 1 H NMR (300MHz, CDCl 3 ): δ7.64(d, 2H), 7.33(d, 2H), 7.23(dd, 4H), 1.96(br, 4H), 1.26(s, 2H), 0.88-0.63(m, 22H), 0.47( t, 6H).

[0023] (2) 2,7-dibromo-9,9-bis(2-ethylhexyl)fluorene (compound 3 for short)

[0024] Add 64mmol (...

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Abstract

The present invention discloses one kind of conjugated polymer containing nitrile phenylene ethylene and with excellent electron injection and transmission capacity and its application as blue electroluminescence material in organic planar display device. The polymer has good dissolvability, heat stability, electronic transmission, etc.

Description

Technical field: [0001] The invention relates to a class of conjugated high polymers containing nitrile phenylene vinylene and its application as a blue electroluminescent material in organic flat display devices. Background technique: [0002] Since 1987 Kodak Corporation of the United States (Tang, C.W.; Vanslyke, S.A. Appl. Phys. Lett. 1987, 51, 913) and the University of Cambridge in 1990 (Burroughes, J.H.; Jones, C.A.; Friend, R.H. Nature 1990, 335, 137 ) since the introduction of high-efficiency organic and polymer electroluminescent devices (LEDs), it has aroused worldwide international competition in the fields of materials science and information technology—organic polymer full-color flat-panel display materials and devices. Its advantages such as self-illumination, high brightness, high efficiency, low-voltage DC drive, low cost, no viewing angle dependence, fast response speed, thin, light, good flexibility, large area and full-color display have shown brilliant p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F12/32C09K11/06G03G5/05G03G5/06G03G5/07
Inventor 占肖卫刘云圻武霞朱道本
Owner INST OF CHEM CHINESE ACAD OF SCI