Electroluminescence polymer as well as polymerization monomer and preparation method and application thereof

A technology for polymerizing monomers and electroluminescence, applied in the field of polymerizing monomers and electroluminescent polymers, can solve the problems of high price of OLED products, low material utilization rate, expensive equipment and so on.

Active Publication Date: 2018-04-20
东莞伏安光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the vacuum evaporation process is used to prepare OLED devices, and the equipment is expensive.
Low material utilization rate (~20%) keeps the price of OLED products high

Method used

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  • Electroluminescence polymer as well as polymerization monomer and preparation method and application thereof
  • Electroluminescence polymer as well as polymerization monomer and preparation method and application thereof
  • Electroluminescence polymer as well as polymerization monomer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0060] One, the preparation of polymerized monomer (C1)

[0061] (1) Preparation of ethylthiophene-3-carboxylate

[0062] In a 500mL three-necked flask, thiophene-3-carboxylic acid (12.8g, 0.1mol) was dissolved in 200mL of methanol, and 20mL of concentrated sulfuric acid was added dropwise to the reaction solution, and after stirring at room temperature for 12 hours, the reaction was stopped, and the reaction was quenched with water , extracted with dichloromethane and dried with anhydrous magnesium sulfate, the solution was concentrated to obtain a yellow liquid, which was purified by silica gel column chromatography, and the mixed solvent of petroleum ether / dichloromethane (5 / 1, v / v) was eluting agent, yield 73%. 1 H NMR, 13 CNMR, MS and elemental analysis results show that the obtained compound is the target product, and the chemical reaction equation of the preparation process is as follows:

[0063]

[0064] (2) Preparation of ethyl 2-(tributyltin)thiophene-3-carbox...

Embodiment example 1

[0121] Example 1: Synthesis of Polymer P1

[0122] Under argon atmosphere, 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-diyl)-9,9-dioctylfluorene ( 321mg, 0.50mmol), 2,7-dibromo-9,9-dioctylfluorene (246.8mg, 0.45mmol) and polymerized monomer C1 (49mg, 0.05mmol) were added to a 50mL two-necked bottle, and then 12mL of refined toluene was added , then add palladium acetate (2.80 mg, 12.45 μmol) and tricyclohexylphosphine (6.98 mg, 24.90 μmol), then add 3 mL of organic base, heat up to 80 ° C, and react for 24 hours; then add 20 mg of phenylboronic acid for capping, 12 After 1 hour, use 0.3mL bromobenzene to carry out capping again; After continuing to react for 12 hours, stop the reaction, wait until the temperature drops to room temperature, add the product dropwise in 300mL methanol for precipitation, filter, then dissolve the crude product in 20mL of toluene In the process, 200-300 mesh silica gel is used as the stationary phase, and toluene is used as the eluent for colu...

Embodiment example 2

[0126] Example 2: Synthesis of Polymer P2

[0127] Under argon atmosphere, 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-diyl)-9,9-dioctylfluorene ( 321mg, 0.50mmol), 2,7-dibromo-9,9-dioctylfluorene (219.4mg, 0.40mmol) and polymer monomer C1 (98mg, 0.10mmol) were added to a 50mL two-necked bottle, and then 12mL refined toluene was added , then add palladium acetate (2.80 mg, 12.45 μmol) and tricyclohexylphosphine (6.98 mg, 24.90 μmol), then add 3 mL of organic base, heat up to 80 ° C, and react for 24 hours; then add 20 mg of phenylboronic acid for capping, 12 After 1 hour, use 0.3mL bromobenzene to carry out capping again; After continuing to react for 12 hours, stop the reaction, wait until the temperature drops to room temperature, add the product dropwise in 300mL methanol for precipitation, filter, then dissolve the crude product in 20mL of toluene In the process, 200-300 mesh silica gel is used as the stationary phase, and toluene is used as the eluent for column chro...

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Abstract

The invention discloses an electroluminescence polymer as well as a polymerization monomer and preparation method and application thereof. The electroluminescence polymer has a structure as shown in formula (II) in the Description, comprises heteroatoms, is capable of increasing the yield of fluorescence quantum and the carrier transport capacity of a light emitting material, and is beneficial toa light emitting device for obtaining efficient and stable light emitting device properties. The electroluminescence polymer disclosed by the invention is relatively good in dissolubility, can be dissolved with common organic solvents and can be formed as a membrane through spinning, ink injection or printing, and a light emitting layer of a light emitting diode can be prepared. (Refer to Description).

Description

technical field [0001] The invention belongs to the field of organic photoelectric technology, and specifically relates to a class of electroluminescent polymers, a polymerized monomer of the electroluminescent polymers, a preparation method and an application thereof. Background technique [0002] Organic light-emitting diode (OLED) displays use organic materials as light-emitting materials. The material structure is easy to modify and improve, and the selection range is wide; the driving voltage is low, only 3-12V DC voltage is required; self-illumination, no backlight is required; wide viewing angle , can be close to 180°; the response speed is fast, up to 1 μs; in addition, it has the advantages of light weight, ultra-thin, large size, flexible panel, and easy molding and processing. Due to the many advantages of OLED displays, it has attracted extensive attention from the scientific and industrial circles. Since Kodak Corporation of the United States developed OLED devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12
CPCC08G61/124C08G61/126C08G2261/1412C08G2261/18C08G2261/3142C08G2261/3241C08G2261/3246C08G2261/411C08G2261/512C08G2261/64C08G2261/95
Inventor 应磊胡黎文黄飞曹镛
Owner 东莞伏安光电科技有限公司
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