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Preparation method of copper-catalyzed low-cost highly-crystallized polyaniline

A highly crystalline polyaniline technology, applied in the field of new materials, can solve the problems of poor selectivity of electrochemical methods, unfavorable large-scale production, weak strength, etc., and achieve the effect of convenient operation, easy industrial large-scale production, and low cost

Pending Publication Date: 2022-02-18
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, the electrochemical method has poor selectivity and is prone to local peroxidation, which is not conducive to large-scale production.
Polyaniline prepared by chemical oxidation and electrochemical methods shows certain crystallinity, but the intensity of the diffraction peaks in the X-ray diffraction spectrum is weak, accompanied by obvious amorphous features, that is, broadened diffuse mountain peaks

Method used

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  • Preparation method of copper-catalyzed low-cost highly-crystallized polyaniline

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Embodiment 1

[0023] 10 ml of carbon tetrachloride was taken in the reaction vessel, 0.314 ml of aniline monomer, 0.638 ml of ice acetic acid, supersonic oscillate at room temperature, placed in a total mass of 0.4 g of copper network induced; after 24 h, remove copper The net was separated from the residual dispersion, and the ethanol was washed multiple times; the precipitate was dried in vacuo to 50 ° C for 5 hours to obtain a final product. X-ray diffraction spectrum of the final product figure 1 Indicated.

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Abstract

The invention belongs to the technical field of polyaniline preparation, and discloses a preparation method of copper-catalyzed low-cost highly-crystallized polyaniline. The method comprises the following steps: taking an organic solvent as a reaction medium, reacting benzene under the action of a catalyst copper and a cocatalyst glacial acetic acid, and carrying out subsequent treatment to obtain polyaniline, wherein the reaction is carried out at room temperature in an atmosphere environment. According to the method, a strong oxidant and a strong acid are not needed, and the reaction is carried out at room temperature in an atmospheric environment, so that the method is environment-friendly; and the method disclosed by the invention is simple, low in cost, convenient in post-treatment and beneficial to industrial mass production. The prepared polyaniline has the characteristic of high crystallinity.

Description

Technical field [0001] The present invention belongs to the technical field of new materials, and is related to the preparation method of copper catalytic height crystalline polyaniline material. Background technique [0002] Polyaniline has broad application prospects in a variety of fields such as gas sensors, supercapacitors, nonlinear optics. Polyaniline may exhibit three states of insulation, semiconductor and conductive. The electrical conductivity of polyaniline can be improved by ribonic acid, and the neutribonic acid can reduce conductivity. The conversion between different conductive states is reversible, providing a wide range of possibilities for the application of polyaniline. The molecular chain of polyaniline has a certain crystal tendency, but the molecular long chain in the polymer is easily wound, and the highly crystalline polyaniline is obtained is difficult. The synthesis process of polyaniline is mainly based on chemical oxidation, generally by ammonium anil...

Claims

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Application Information

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IPC IPC(8): C08G73/02
CPCC08G73/0266
Inventor 高俊宁张松琳肖锐博
Owner SOUTH CHINA UNIV OF TECH
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