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Aniline monomer, aniline polymer, nanofiber material, manufacturing method, and application

An aniline polymer and nanofiber technology is applied in the direction of single-component synthetic polymer rayon, the preparation of organic compounds, the preparation of aminohydroxy compounds, etc., which can solve problems such as the decline of color purity and achieve the effect of improving stability

Inactive Publication Date: 2016-05-04
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among organic polymer blue light materials, organic polyfluorene and its derivatives have been widely studied as the most promising blue light materials due to their excellent comprehensive properties such as high fluorescence quantum efficiency and good thermal stability. The biggest defect of devices made of blue light materials is that when the device works for a long time or is heated, long-wavelength luminescence occurs at 530-540nm, and the luminous color changes from pure blue to blue-green, resulting in a decrease in color purity.

Method used

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  • Aniline monomer, aniline polymer, nanofiber material, manufacturing method, and application
  • Aniline monomer, aniline polymer, nanofiber material, manufacturing method, and application
  • Aniline monomer, aniline polymer, nanofiber material, manufacturing method, and application

Examples

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Embodiment 1

[0036] A method for producing aniline monomer, aniline polymer and nanofiber material thereof, the method comprising: synthesizing a polymer monomer to obtain N,N-bis(4-bromophenyl)-4-(4-phenoxy ) aniline monomer; the obtained monomer is purified and further polymerized to obtain poly[2,7-(9,9-dioctylfluorene)-alternating-N-phenyl-N-(4-phenoxyphenyl)aniline ]; The obtained aniline polymer was dissolved in a solvent, and the polymer nanofiber material was prepared by high-voltage electrospinning technology.

Embodiment 2

[0038] According to the manufacture method of aniline monomer, aniline polymer and nanofiber material thereof described in embodiment 1, described synthetic aniline monomer M comprises the steps:

[0039] Use refined toluene as solvent (1mmol 4-phenoxyaniline is added to toluene 1~1.5mL), select 4-phenoxyaniline and 1-bromo-4-iodobenzene, according to the molar ratio of 1:2~1:2.2 Add, add palladium catalyst Pd 2 (dba) 3 , the palladium catalyst Pd 2 (dba) 3 The ratio to the 4-phenoxyaniline is 1:80~1:120, add 1,1'-bis(diphenylphosphine)ferrocene (DPPF), the 1,1'-bis( The ratio of diphenylphosphine) ferrocene (DPPF) to the 4-phenoxyaniline is 1:20 to 1:30, the temperature is controlled at 95 to 110°C, and the sodium tert-butoxide (t- The ratio of BuONa) to the 4-phenoxyaniline is 2:1 to 4:1, and the reaction time is controlled at 4 to 10 hours to obtain N,N-bis(4-bromophenyl)-4-(4 -phenoxy)aniline monomer (M), as shown in the following formula:

[0040] .

Embodiment 3

[0042] According to the manufacturing method of aniline monomer, aniline polymer and nanofiber material thereof described in Example 1, the obtained aniline monomer is purified and further polymerized to obtain poly[2,7-(9,9-dioctylfluorene)- Alternate-N-phenyl-N-(4-phenoxyphenyl)aniline], the specific steps are: use refined toluene as solvent (1mmol monomer M is added toluene 10~25mL), using 9,9-dioctyl Fluorene-2,7-diboronic acid cis(1,3-propanediol) ester and monomer M are added in a molar ratio of 1:1 to 1:1.2, and the palladium catalyst Pd is added in a ratio of 1:25 to 1:35 ( PPh 3 ) 4 , the palladium catalyst Pd(PPh 3 ) 4 The ratio of cis(1,3-propanediol) to 9,9-dioctylfluorene-2,7-diboronate is 1:25~1:35, add 2~3M sodium carbonate solution equal to the volume of toluene, Under the protection of high-purity argon or nitrogen, the aniline polymer P containing fluorene was prepared by Suzuki coupling reaction, as shown in the following formula:

[0043] .

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Abstract

The invention relates to an aniline monomer, an aniline polymer, a nanometer fiber material, and a preparation method and applications thereof. In an organic polymer blue emitting material, a greatest defect of the use of organic polyalkylfluorene a device for making the blue emitting material is that the color purity is reduced because of the conversion of a luminescence color to blue green from pure blue when long wavelength luminescence appears at 530-540nm under a device long-time work or heating condition. The preparation method comprises the following steps: synthesizing phenoxyl-containing triphenylamine, and obtaining an N,N-bis(4-bromophenyl)-4-(4-phenoxyl)aniline monomer; purifying the obtained monomer, and further polymerizing to obtain poly[2,7-(9,9-dioctylfluorenyl)-alternate-N-phenyl-N-(4-phenoxylphenyl)aniline]; and dissolving the above obtained aniline polymer in a solvent, and utilizing a high-voltage electrostatic spinning technology to prepare the aniline polymer nanometer fiber material. The preparation method is used for preparing the aniline monomer, the aniline polymer and the nanometer fiber material.

Description

Technical field: [0001] The invention relates to an aniline monomer, aniline polymer, nanofiber material, production method and application. Background technique: [0002] Organic polymer electroluminescent diodes (PLEDs) have great potential applications in flat panel display and white lighting, and organic polymer electroluminescent materials have become a research hotspot for chemists. To realize full-color display, red, green and blue materials with high efficiency, stability and good color purity are required. The blue light-emitting material itself can be used as a light-emitting layer to prepare a blue light-emitting device of one of the three primary colors, and other light-emitting materials can be doped into the blue light-emitting material to obtain green and red light-emitting devices, so the blue light-emitting material is the most basic material. It is also a key topic in the research of organic electroluminescent materials. Among organic polymer blue light m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C217/92C07C213/08C08G61/12D01F6/78C09K11/06H01L51/54
Inventor 汪成王淑红张伟平柏宇豪陈宇藏琳琳闫鹏飞倪亮
Owner HEILONGJIANG UNIV