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Electrochromatic material made of isocyanate-triphenylamine and method for preparing electrochromatic material

An electrochromic material and ester-based triphenylamine technology, applied in the field of electrochromic materials and their preparation, can solve the problems of easy shedding, poor solvent corrosion resistance, etc., and achieve high cycle life, good chemical stability, and good electrical properties. Effects of chemical redox reversibility

Inactive Publication Date: 2013-08-07
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the film made of the existing electrochromic material is easy to fall off during the test process and has poor corrosion resistance to solvents, and provides an electrochromic material prepared from isocyanate-based triphenylamine and a preparation method thereof

Method used

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  • Electrochromatic material made of isocyanate-triphenylamine and method for preparing electrochromatic material
  • Electrochromatic material made of isocyanate-triphenylamine and method for preparing electrochromatic material
  • Electrochromatic material made of isocyanate-triphenylamine and method for preparing electrochromatic material

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specific Embodiment approach 1

[0017] Specific Embodiment One: This embodiment is a method of electrochromic material prepared from isocyanate-based triphenylamine as a raw material, specifically as follows:

[0018] Add diisocyanate-based triphenylamine into anhydrous dichloroethane at room temperature, and then completely dissolve diisocyanate-based triphenylamine in anhydrous dichloroethane under the protection of nitrogen at a stirring speed of 50r / s-150r / s , and mix evenly to obtain a mixture, raise the temperature of the mixture from room temperature to 60°C-80°C, then add a dihydroxy monomer, and condense and reflux at a temperature of 60°C-80°C for 36h-60h, then cool to room temperature, and then adopt the method of filtration and separation to obtain a solid reaction product, and finally dry the obtained solid reaction product at a temperature of 40° C. to 50° C. to a constant weight to obtain an electrochromic material.

[0019] The mass ratio of the diisocyanate triphenylamine described in the pr...

specific Embodiment approach 2

[0029] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the dihydroxy monomer is phenolphthalein, bisphenol A, dihydroxybenzophenone or dihydroxybiphenyl. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0030] Specific embodiment three: This embodiment is a method for preparing an electrochromic material with isocyanate-based triphenylamine as a raw material, specifically as follows:

[0031] Add triisocyanatotriphenylamine into anhydrous dichloroethane at room temperature, and then completely dissolve triisocyanatotriphenylamine in anhydrous dichloroethane under the protection of nitrogen with a stirring speed of 50r / s~150r / s , and mix evenly to obtain a mixture, raise the temperature of the mixture from room temperature to 60°C-80°C, then add a dihydroxy monomer, and condense and reflux at a temperature of 60°C-80°C for 36h-60h, then cool to room temperature, and then adopt the method of filtration and separation to obtain a solid reaction product, and finally dry the obtained solid reaction product at a temperature of 40°C to 50°C to a constant weight to obtain an electrochromic material.

[0032] The mass ratio of the triisocyanate triphenylamine described in the present ...

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Abstract

The invention relates to electrochromatic materials and preparation methods thereof, particularly relates to an electrochromatic material made of isocyanate-triphenylamine and a method for preparing the electrochromatic material, and aims to solve the problem that films made of existing electrochromatic materials are prone to shed during test and poor in resistance to solvent corrosion. The structural formula of the electrochromatic material made of isocyanate-triphenylamine is shown as follows. The method includes: adding diisocyanate- triphenylamine or triisocyanate- triphenylamine into anhydrous dichloroethane, stirring under the shielding of nitrogen to enable the diisocyanate- triphenylamine or triisocyanate- triphenylamine to be completely dissolved and well mixed, heating the obtained mixture, adding dihydroxyl monomer, performing condensation backflow reaction at the temperature after heating, then cooling to the room temperature, and finally drying the solid reaction product obtained after filtering separation to constant weight to obtain the electrochromatic material. The method is mainly used for electrochromatic materials made of isocyanate-triphenylamine.

Description

technical field [0001] The invention relates to an electrochromic material and a preparation method thereof. Background technique [0002] Entering the information age, organic electronics, as an emerging subject, has achieved rapid development. The combination of organic electronics, organic chemistry, and materials science has produced a number of new materials with excellent optoelectronic properties, covering many fields including display materials, military camouflage materials, information storage materials, sensing materials, and smart materials. The existence of polyurethane with electrochromic and electrochromic properties will surely bring vigorous vitality to the field of display and sensing, and it shows outstanding advantages and broad development and application prospects in the field of display and sensing. At present, electrochromic materials are widely used in display, military camouflage and other fields, and electrochromic materials have received more and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/78C08G18/32C09K9/02
Inventor 牛海军张春雨范乾敏张海洋郝丽苹于静
Owner HEILONGJIANG UNIV
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