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

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 The invention relates to an electrochromic material and a preparation method thereof. Background technique 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 make the field of display and sensing burst into vigorous vitality, and it has shown outstanding advantages and broad development and application prospects in the field of display and sensing. At present, electrochromic materials are widely used in fields such as displays and military camouflage, and electrochromic materials have received more and mo...

AI Technical Summary

Problems solved by technology

The present invention will solve the problem that the film made of existing electrochromic materials 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