Side-chain aryl conjugated organic light-emitting material and preparation method thereof

A luminescent material and aryl-based technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of poor film-forming properties, poor stability of organic luminescent materials, limited luminescent wavelength range, etc., and achieve good anti-oxidation crosslinking, High emission purity, improve the effect of anti-oxidative cross-linking

Inactive Publication Date: 2014-10-01
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to solve the problems of poor stability, poor film-forming properties, low comprehensive luminous efficiency, limited luminous wavelength region and temperature quenching characteristics of organic luminescent materials, and provide a side chain aryl conjugated organic luminescent Materials and their preparation methods

Method used

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  • Side-chain aryl conjugated organic light-emitting material and preparation method thereof
  • Side-chain aryl conjugated organic light-emitting material and preparation method thereof
  • Side-chain aryl conjugated organic light-emitting material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] 1) Put 50g of polydimethylsiloxane (PMDS) in a closed 300ml autoclave, raise it to 300°C at 10°C / min under the protection of argon, vacuumize and keep it for 2 hours, and then fill it with argon to keep The pressure in the system is 101KPa, then rise to 390°C at 1°C / min, and keep warm for 3h. After the reaction was completed, after the temperature in the reaction kettle was naturally cooled to room temperature, n-hexane was added to dissolve the product, filtered, and n-hexane was removed in a vacuum to finally obtain pale yellow solid polycarbosilane (PCS).

[0039] 2) The product in step 1) was ground and soaked in absolute ethanol, stirred for 12 hours, and the filtered product was washed three times with absolute ethanol and then dried in a vacuum oven at 60° C. to obtain a light yellow powder.

[0040] 3) Take 5g of the product in step 2), grind it into powder and dissolve it in 30ml of xylene, then mix it evenly with 10ml of styrene, then add 1ml of chloroplatinic...

Embodiment 2

[0044] 1) Put 50g of polydimethylsiloxane in a closed 300ml high-pressure reactor, raise it to 300°C at 10°C / min under the protection of argon, vacuumize and keep it for 2 hours, and then fill it with argon to maintain the pressure in the system It is 101KPa, then raised to 390°C at 1°C / min, and kept for 3h. After the reaction was completed, after the temperature in the reaction kettle was naturally cooled to room temperature, n-hexane was added to dissolve the product, filtered, and n-hexane was removed in a vacuum to finally obtain light yellow solid PCS.

[0045] 2) The product in step 1) was ground and soaked in absolute ethanol, stirred for 12 hours, and the filtered product was washed three times with absolute ethanol and then dried in a vacuum oven at 60° C. to obtain a light yellow powder.

[0046] 3) Take 5g of the product in step 2), grind it into powder and dissolve it in 30ml of xylene, then mix it evenly with 10ml of 2-vinylnaphthalene, then add 1ml of chloroplati...

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Abstract

The invention discloses a side-chain aryl conjugated organic light-emitting material and a preparation method thereof and relates to an organic light-emitting material. The preparation method comprises the steps of synthesizing polycarbosilane; removing polycarbosilane small molecule; and synthesizing side chain aryl conjugated polycarbosilane. The method specifically comprises the steps of reacting poly(dimethylsiloxane) as a raw material in a high pressure reaction kettle to obtain polycarbosilane, then defoaming polycarbosilane small molecules, and then reacting a small amount of aryl (Pn) organic matters and defoamed polycarbosilane to obtain the solid side-chain aryl conjugated polycarbosilane. The antioxidant crosslinking performance, anti-ultraviolet aging performance and thermal stability are improved. Although the reacted system has a conjugated structure, no rigid planar structure and is lack of an electron donating group, the reaction system still shows relatively strong luminescent performance. After a synthesized product is excited by ultraviolet light of which the wavelength is 350nm, the synthesized product has blue-violet light emission at 410nm, the emission purity is high, no miscellaneous peak is generated and good antioxidant crosslinking performance, anti-ultraviolet aging performance and thermal stability are achieved.

Description

technical field [0001] The invention relates to an organic luminescent material, in particular to a side chain aryl conjugated organic luminescent material and a preparation method thereof. Background technique [0002] Luminescent materials have been used throughout the history of human civilization. They are widely used in high-tech fields such as communications, satellites, radars, displays, records, optical computers, and biomolecular probes. Especially in today's information age, the development of luminescent materials that meet various information display requirements is particularly rapid. Luminescent materials can be divided into two categories: inorganic luminescent materials and organic luminescent materials. Compared with inorganic materials, organic materials have higher luminous efficiency and a wider selection range of luminous colors, and have the advantage of being easy to form large-area films. In recent years, the research on organic light-emitting mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C08G77/60
Inventor 姚荣迁符长平毛宇郑鸿飞冯祖德
Owner XIAMEN UNIV
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