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Method for preparing laminated electrochromic polymer film capable of regulating and controlling full-color display

A polymer film and electrochromic technology, applied in the field of polymer materials, can solve the problems of poor processability and few colors

Pending Publication Date: 2022-03-01
HANGZHOU DIANZI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a laminated electrochromic polymer film with adjustable full-color display, which aims to solve the shortcomings of existing electrochromic materials such as few colors and poor processability, and is beneficial to electrochromic materials. Realize multiple color adjustments during application

Method used

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  • Method for preparing laminated electrochromic polymer film capable of regulating and controlling full-color display
  • Method for preparing laminated electrochromic polymer film capable of regulating and controlling full-color display
  • Method for preparing laminated electrochromic polymer film capable of regulating and controlling full-color display

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Embodiment Construction

[0061] The technical scheme of the present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to this:

[0062] Such as figure 1 As shown, the preparation of water-soluble magenta electrochromic polymer comprises the following steps:

[0063]Step 1. Add 1.44g (10mmol) of 3,4-dimethoxythiophene, 5.24g (20mmol) of dibromoneopentyl glycol, 0.18g (1mmol) of p-toluenesulfonic acid, and 30mL of toluene into a 100mL two-necked flask in sequence , heated at 110 ° C for 16 hours, after the reaction, extracted three times with water and dichloromethane, collected the extract of the dichloromethane phase, concentrated and dehydrated with anhydrous sodium sulfate, purified by column chromatography, fixed on silica gel Phase, dichloromethane and petroleum ether as the mobile phase, the volume ratio of dichloromethane and petroleum ether is 1:3, the eluate containing the target compound is collect...

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Abstract

The invention relates to a method for preparing a laminated electrochromic polymer film capable of regulating and controlling full-color display. Different lengths of alkane side chains are adjusted, then modified 3, 4-ethylenedioxythiophene derivative-based monomers and different dibromo monomers are subjected to direct arylation coupling polycondensation copolymerization, the pi conjugation degree and the energy band structure of the polymer are adjusted, and then the discoloration color of the polymer is adjusted and controlled. The organic solvent processing is converted from different colors to transparency, and then the polymer is subjected to alkaline hydrolysis to prepare the water-soluble three-primary-color electrochromic polymer; the water-soluble three-primary-color electrochromic polymer which is stacked layer by layer is sprayed on the conductive glass, the laminated electrochromic polymer film capable of regulating and controlling full-color display is prepared by regulating and controlling the solution concentration, the spraying thickness and the laminating sequence of the water-soluble three-primary-color water-soluble electrochromic polymer, the processing is simple, the process is environment-friendly, and the cost is low. The material can be used for preparing an electrochromic display device.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a method for preparing a laminated electrochromic polymer film capable of controlling full-color display. Background technique [0002] In 1961, Platt first proposed the definition of electrochromism. Electrochromism refers to the redox reaction of materials under the action of applied voltage due to the injection and extraction of charges, accompanied by the doping and dedoping of electrolyte ions. The optical absorption changes in the visible-near-infrared region, which is manifested as a reversible change in color and transmittance macroscopically. [0003] The early electrochromic materials were mainly inorganic electrochromic materials, but organic electrochromic materials came from behind because of their rich structure types, excellent electrochromic comprehensive performance and good processing performance. Many fields such as paper, car rearview mirror, military...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L65/00C08G61/12
CPCC08J5/18C08G61/126C08G2261/54C08J2365/00C08G2261/124C08G2261/312C08G2261/72C08G2261/3243C08G2261/3246C08G2261/3223
Inventor 白茹欧阳密戴大程
Owner HANGZHOU DIANZI UNIV
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