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Preparation method of water-soluble self-doped polyaniline (PANI) electrochromic material

An electrochromic material, polyaniline technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, etc., can solve the problems of low degree of polyaniline binding, complex post-processing procedures, poor product stability, etc. Good stability and compatibility

Inactive Publication Date: 2011-04-27
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0009] The technical problem to be solved in the present invention is: in order to overcome and solve the problems such as low binding degree, low doping efficiency, complicated post-treatment process, many reaction by-products and poor product stability in polyaniline synthesized by solution doping method, a kind of Preparation method of novel water-soluble self-doping polyaniline electrochromic material

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  • Preparation method of water-soluble self-doped polyaniline (PANI) electrochromic material
  • Preparation method of water-soluble self-doped polyaniline (PANI) electrochromic material
  • Preparation method of water-soluble self-doped polyaniline (PANI) electrochromic material

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Embodiment Construction

[0033] figure 1 It is a flowchart of the present invention. Put PVSM, strong acid and aniline into the pre-reaction container for complete pre-reaction, add initiator to initiate chain polymerization and chain growth of aniline, and then separate and purify to remove excess acid, initiator, oligomer and some impurities in the reaction system and storing the obtained material in water to obtain a water-soluble PANI / PVSA electrochromic material.

[0034] The analysis and testing method of the material of the present invention: Utilize the Alliance GPCV2000 type gel chromatograph of Waters Company of the United States to measure the molecular weight of the sample, and the RTS-8 type four-probe conductivity meter to test the conductivity of the sample. The photoluminescence spectrum was measured with a PerkinElmer (PE) Lambda 900 spectrophotometer, and the visible light reflection spectrum of the prepared electrochromic device under different applied voltages was tested with a Mo...

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Abstract

The invention discloses a preparation method of a water-soluble self-doped polyaniline (PANI) electrochromic material, which is used for solving the problems of the PANI synthesized by a solution doping method such as low binding degree, low doping efficiency, complicated aftertreatment procedures, more reaction by-products, poor product stability and the like. The technical scheme is as follows: firstly pre-reacting polyvinyl alcohol sulfonate with aniline; carrying out oxidative polymerization on the aniline by use of an initiator to obtain water-soluble doped PANI; and separating and purifying the obtained PANI / polyvinyl alcohol sulfonate electrochromic material, and finally preserving the product in aqueous solution for later use. The preparation method has the advantages of simple process, high yield and less environmental pollution, and is easy for industrial production; and the obtained product has the advantages of good water solubility, heat stability, solid conductivity and electrochromic performance.

Description

Technical field: [0001] The invention belongs to the technical field of electrochromic functional polymers, and in particular relates to a method for preparing a water-soluble self-doping polyaniline electrochromic material by using polyvinyl alcohol sulfonate (PVSM) as a polymerization guiding template. Background technique: [0002] Among many conductive polymer materials, polyaniline (PANI) has become a research hotspot in the field of intrinsically conductive polymers due to its easy-to-obtain raw materials, simple synthesis method, high electrical conductivity, good environmental stability, and special doping mechanism. . However, due to the strong rigidity of the polyaniline chain and the strong interaction between the chains, its solubility is extremely poor, which limits its large-scale and large-scale application. Improving the solubility of polyaniline has become a subject of close attention by researchers at home and abroad. In recent years, the solubility and pr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08L29/02C08G73/02C09K9/02
Inventor 王华林谢凯盘毅洪晓斌李华王珲信聪姚萌
Owner NAT UNIV OF DEFENSE TECH
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