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Soluble electrochromic polymer taking tetrathiophene as color-changing main body as well as preparation and application thereof

An electrochromic and quadruple thiophene technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, can solve problems such as lack of

Active Publication Date: 2020-12-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the technical patents of solution-processed electrochromic materials with good application prospects are concentrated in developed countr

Method used

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  • Soluble electrochromic polymer taking tetrathiophene as color-changing main body as well as preparation and application thereof
  • Soluble electrochromic polymer taking tetrathiophene as color-changing main body as well as preparation and application thereof
  • Soluble electrochromic polymer taking tetrathiophene as color-changing main body as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
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Embodiment

[0049] Embodiment: the polymer molecule prepared in this embodiment and its synthetic route are as follows:

[0050]

[0051] Compound 1 (0.33g, 1eq.), 2 (0.48g, 1eq.), pivalic acid (40mg, 0.3eq.), potassium carbonate (345mg, 2.5eq.) and Pd(OAc) 2 (7mg, 0.03eq.) was added to a flask containing 10mL DMAC, and the reaction was placed in a nitrogen atmosphere at 120°C for 16 hours. After the reaction, the solution was poured into methanol, filtered, dried, and washed with methanol, acetone, and hexane in sequence. Extract with alkane and chloroform, and collect the polymer in the chloroform phase.

[0052] 15 mg of the obtained polymer was weighed and dissolved in 1 mL of chloroform, and spin-coated using a centrifuge at a parameter of 800 r / min for 0.5 min to obtain a polymer film. in TBAPF 6Electrochemical, optical and electrochromic performance tests are carried out in / ACN.

[0053] The film exhibits relatively good redox performance, showing a reversible switch between...

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Abstract

The invention discloses an oil-soluble electrochromic polymer based on tetrathiophene as a color-changing main body. The oil-soluble electrochromic polymer is shown as a formula (1). The invention also provides a preparation method of the oil-soluble electrochromic polymer based on tetrathiophene as the color-changing main body. The oil-soluble electrochromic polymer is prepared into an electrochromic polymer film in a solution processing manner. The reasonable electrochemical stability is shown, and a spectral electrochemical test result shows that the product is an electrochromic material with potential application value, has universality and is convenient to process.

Description

technical field [0001] The invention relates to an oil-soluble electrochromic polymer with quadruple thiophene as the color-changing main body, as well as its preparation and application. Background technique [0002] "Electrochromism" (Electrochromism, EC) refers to the phenomenon of stable and reversible changes in the optical properties of materials, such as transmittance, reflectivity, absorptivity, etc. . [0003] In recent years, energy-saving and environmentally friendly materials have attracted widespread attention. Electrochromic materials are just such new functional materials that can change human production and lifestyle and contribute to the rational use of energy. The material has the advantages of abundant sources, simple device preparation process and low working voltage, and can be widely used in fields such as smart windows, electronic paper and displays. Conductive polymer-based electrochromic materials have become the most potential class of electrochr...

Claims

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Application Information

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IPC IPC(8): C08G61/12C09K9/02
CPCC08G61/126C09K9/02C08G2261/00C08G2261/124C08G2261/1424C08G2261/18C08G2261/3223C08G2261/312C08G2261/54C09K2211/1458
Inventor 李维军展望张诚张凌
Owner ZHEJIANG UNIV OF TECH