A kind of polysiloxane with electrochromic performance and preparation method thereof

A polysiloxane, electrochromic technology, applied in the preparation of organic compounds, the preparation of carboxylic acid amides, chemical instruments and methods, etc. Effects of stability, good electrochemical redox reversibility, and high cycle life

Inactive Publication Date: 2019-07-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing polymer film is easy to fall off in an organic solution, and it is difficult to measure its electrochromic performance, and to provide a polysiloxane with electrochromic performance and its preparation method

Method used

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  • A kind of polysiloxane with electrochromic performance and preparation method thereof
  • A kind of polysiloxane with electrochromic performance and preparation method thereof
  • A kind of polysiloxane with electrochromic performance and preparation method thereof

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specific Embodiment approach 1

[0061] Specific embodiment 1: This embodiment is a polysiloxane with electrochromic properties. The structural formula is:

[0062] where R is

[0063] The value range of n is 1≤n≤10000, the value range of m is 1≤m≤10000, and both m and n are integers.

specific Embodiment approach 2

[0064] Specific embodiment two: This embodiment is a method for preparing polysiloxane with electrochromic properties, which is specifically completed according to the following steps:

[0065] 1. Synthetic monomer:

[0066] ①. Dissolve an aminoaniline derivative in N,N-dimethylformamide, and then stir at a stirring speed of 200r / min~500r / min for 20min~40min to obtain a clear transparent solution;

[0067] The volume ratio of the amount of an aminoaniline derivative described in step 1. to N,N-dimethylformamide is 5mmol:100mL;

[0068] ②. Add triethylamine to the clear transparent solution, and then stir for 3 minutes to 5 minutes at a stirring speed of 200r / min to 500r / min to obtain a mixed solution I;

[0069] The mol ratio of triethylamine described in step 1.2 and an aminoaniline derivative in the clear transparent solution is 1:1;

[0070] ③. Dissolving acryloyl chloride in N,N-dimethylformamide to obtain acryloyl chloride solution;

[0071] The volume ratio of the amo...

specific Embodiment approach 3

[0096] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the one-aminoaniline derivative described in step one ① is 4-aminotriphenylamine, 4-aminophenyl-N-carbazole, 4- Aminophenyl-N-phenothiazine, 4-amino-4',4"-di-tert-butyltriphenylamine, 4-amino-4',4"-dimethoxytriphenylamine or N-(β-naphthalene base)-N-phenyl-p-phenylenediamine. Others are the same as in the second embodiment.

[0097] The structural formula of the 4-aminophenyl-N-phenothiazine described in this embodiment is The structural formula of described 4-amino-triphenylamine is The structural formula of the described 4-amino-4', 4 "-di-tert-butyltriphenylamine is: The structural formula of the N-(β-naphthyl)-N-phenyl-p-phenylenediamine is: The structural formula of described 4-aminophenyl-N-carbazole is The structural formula of described 4-amino-4',4 "-dimethoxytriphenylamine is

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Abstract

The invention discloses polysiloxane with electrochromic property and a preparation method thereof and relates to polysiloxane and a preparation method thereof. The invention is aimed at solving the problem that existing polymer film easily falls off in an organic solution and the electrochromic property thereof is hard to measure. The structure of the polysiloxane with electrochromic property is shown in the specification. The preparation method comprises the following steps: (I) synthesizing a monomer; and (II) synthesizing polysiloxane to obtain polysiloxane with electrochromic property. For the polysiloxane with electrochromic property, which is synthesized according to the invention, the response to color change is fast, the coloring time is 3.2-4.3s, and the color fading time is 3.5-4.2s. According to the invention, polysiloxane with electrochromic property can be obtained.

Description

technical field [0001] The invention relates to a polysiloxane and a preparation method thereof. Background technique [0002] Electrochromism refers to the phenomenon that under the action of current or electric field, the material undergoes light absorption or light scattering, resulting in a reversible change in color. Since the display screen made of electrochromic material has no viewing angle display limitation, and has rich colors and fast response time, it is expected to be used to replace liquid crystal display. In addition, electrochromic materials have potential value in military camouflage, smart materials, etc., and have received more and more attention. [0003] Electrochromic materials can be roughly divided into inorganic electrochromic materials and organic electrochromic materials according to material types. Inorganic materials are electrochromic materials that have been studied earlier, and have the advantages of high color contrast, high cycle stabilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/388C08G77/392C07D209/86C07D279/26C07C231/02C07C233/44
CPCC07C231/02C07D209/86C07D279/26C08G77/388C08G77/392C07C233/44
Inventor 王文牛海军郝丽苹周玉
Owner HARBIN INST OF TECH
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