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Photosensitive crosslinking agent and preparation method and application thereof

A cross-linking agent and photosensitive technology, which can be used in the preparation of carboxylic acid halides, chemical instruments and methods, luminescent materials, etc., and can solve the problems of low cross-linking efficiency and small number of chromophores.

Active Publication Date: 2018-01-19
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with multi-component cross-linking agents, linear cross-linking agents have the problems of less chromophores and low cross-linking efficiency. In this published patent, it takes 20 minutes to achieve complete cross-linking

Method used

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  • Photosensitive crosslinking agent and preparation method and application thereof
  • Photosensitive crosslinking agent and preparation method and application thereof
  • Photosensitive crosslinking agent and preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0056] The preparation method of the photosensitive cross-linking agent of embodiment 1, three branches

[0057] This example provides a preparation method for a three-branched photosensitive crosslinking agent, and its synthetic route can be found in figure 1 . The structural formula of the three-branched photosensitive crosslinking agent containing active carbonyl is as follows,

[0058]

[0059] The preparation method is as follows: add 4-hydroxybenzophenone (4.7572g, 24.0mmol), 2-(2-chloroethoxy)ethanol (3.7371g, 30.0mmol) and potassium carbonate (6.6240g, 48.0mmol) In 10mL N,N-dimethylformamide, react at 120°C for 8-10 hours. After the reaction, 100 mL of distilled water was added into the reaction system, extracted with anhydrous ether, washed with saturated brine, dried over anhydrous magnesium sulfate, and then rotary-evaporated to obtain an intermediate product. Dissolve 1,3,5-benzenetricarboxylic acid chloride (0.8495g, 3.76mmol) in 30mL of dichloromethane, c...

Embodiment 3

[0070] Embodiment 3, formula III Preparation method of photosensitive crosslinking agent

[0071] This embodiment provides the preparation method of the photosensitive cross-linking agent of the formula III structure, and its preparation method is basically the same as that of Example 2, the only difference is: the reaction amount of chlorine p-toluenesulfonate and dipentaerythritol used in this embodiment Configure according to its molar ratio of 7:1; the reaction amount of the intermediate product and 4-hydroxybenzophenone is configured according to its molar ratio of 1:7. That is, the target product shown in the following structure is obtained:

[0072]

Embodiment 4

[0073] Embodiment 4, cross-linked polymethacrylate material and its film properties and insulating properties

[0074] The cross-linking agent used in this example is the three-branched photosensitive cross-linking agent prepared in Example 1, blended with polymethyl methacrylate or polyisobutyl methacrylate, polymethacrylate materials and The weight ratio of crosslinking agent is 20:1. The mixed solution (dichloromethane solvent) was spin-coated on silicon wafers for infrared characterization. The insulation properties of cross-linked polymethacrylate materials can be obtained through MIM devices. Its preparation method ( Figure 16 ) is: a layer of 40nm thick aluminum metal layer is evaporated on the glass substrate as an electrode, and the polymethacrylate material and the three-branched photosensitive cross-linking agent are mixed with chlorobenzene solution at room temperature for 12 hours, and spin Apply to glass substrates. Then the radiant energy is 7000mW / cm at ...

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Abstract

The invention discloses a photosensitive crosslinking agent and a preparation method and application of the photosensitive crosslinking agent. The photosensitive crosslinking agent is a branch-shapedp-benzoquinone crosslinking agent. The prepared crosslinking agent realizes the effective crosslinking process within a very short period of time of illumination through the irradiation of UVA light under the conditions of no catalysts and no byproducts. By adopting the photo-crosslinking method provided by the invention, a crosslinking polymer material is prepared only by ultraviolet radiation after simply mixing the crosslinking agent and a matrix material. An obtained crosslinking insulating layer material is suitable for preparing various organic field effect transistor devices through a solution method, and is a crosslinking polymer insulating layer material with excellent performances. An obtained crosslinking hole conduction layer material is suitable for preparing an organic film in various organic electroluminescent displays through the solution method, and is a crosslinking polymer hole conduction layer material with excellent performances.

Description

technical field [0001] The invention relates to the technical field of photosensitive crosslinking agents, in particular to a photosensitive crosslinking agent and a preparation method and application thereof. In particular, it relates to a linear or branched benzodione photocrosslinking agent and its preparation method and application. Background technique [0002] Organic field-effect transistors (OFETs) are triode devices that use organic conjugated molecules as the active semiconductor layer, use inorganic or polymer materials as the insulating layer, and switch on and off by gate voltage. In the initial stage of research and development of OFETs and even most of the current work, their preparation still relies more or less on traditional vacuum deposition techniques. The constraints of high equipment investment, high maintenance cost and long production cycle of vacuum deposition technology are not suitable for the practical application of OFETs. How to prepare low-vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/24C08J3/28C07C69/76C07C67/14C09K11/06H01L51/10H01L51/30H01L51/50H01L51/54
Inventor 刘影孙文建赵家庆张清郭小军
Owner SHANGHAI JIAO TONG UNIV
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