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Preparation method of high conductivity polyaniline in magnetic field

A high-conductivity, polyaniline technology, applied in the field of high-conductivity polyaniline preparation, to achieve high conductivity and corrosion potential, improve electrochemical performance, and improve the effect of orientation consistency

Inactive Publication Date: 2008-05-14
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the articles and patents on the preparation of highly conductive polyaniline by chemical polymerization in a magnetic field environment have not yet been reported.

Method used

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  • Preparation method of high conductivity polyaniline in magnetic field
  • Preparation method of high conductivity polyaniline in magnetic field
  • Preparation method of high conductivity polyaniline in magnetic field

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A pair of magnets are added to the maximum diameter of the three-necked flask, and the magnetic field strength is 5000 Gauss. Weigh a certain amount of sulfosalicylic acid and dissolve it in 50ml of distilled water, transfer it to a 250ml flask in a magnetic field environment, stir at a medium speed for 1 hour, add aniline monomer dropwise, dilute with 50ml of distilled water at the same time, and stir at a high speed for 1 hour , forming a homogeneous emulsion. Then slowly add the co-emulsifier dropwise until the whole emulsion system becomes transparent or translucent with blue light shining out, which indicates the formation of microemulsion, then add the prepared ammonium persulfate solution dropwise, and add dropwise within 30 minutes Finish. With the addition of the initiator, the reaction system experienced changes from transparent-light blue-light green-dark green-dark green. After the reaction, the emulsion is green. After being demulsified by acetone, it is ...

Embodiment 2

[0026] Weigh a certain amount of dodecylbenzenesulfonic acid and dissolve it in 50ml of distilled water, transfer it to a 250ml flask in a magnetic field environment, adjust the pH value with 4mol / L HCl, stir at a medium speed for 1 hour, then add aniline monomer dropwise , while diluting with 50ml of distilled water and stirring at high speed for 1 hour to form a uniform emulsion. Then slowly add the co-emulsifier dropwise until the whole emulsion system becomes transparent or translucent with blue light shining out, which indicates the formation of microemulsion, then add the prepared ammonium persulfate solution dropwise, and add dropwise within 30 minutes Finish. With the addition of the initiator, the reaction system experienced changes from transparent-light blue-light green-dark green-dark green. After the reaction, the emulsion is green, and then the emulsion is broken, left to stand for 10 hours, filtered by suction, and dried in vacuum to obtain polyaniline powder. ...

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Abstract

The preparation method for polyaniline with high conductivity in magnetic field comprises, putting the preparation device for polyaniline in magnetic field environment; with acidic medium, oxidant and dopant, synthezing and doping polyaniline with high orientation and conductivity; using added magnetic field to increase orientation of conjugate conducting high polymer. Compared with existing domestic product, the product has better conductivity and anti-corrosiveness and fit to aeronautical, astronautical, mechanism, and nuclear electronic fields.

Description

technical field [0001] The invention relates to a method for preparing polyaniline with high conductivity in a magnetic field environment. Background technique [0002] Polyaniline has the advantages of easy to obtain raw materials, simple synthesis, fast and reversible redox reaction, high density charge storage, good optical, electrochemical properties and chemical stability, etc., and is considered to be the most promising in practice. widely used conductive polymer materials. Therefore, it has become a research hotspot in recent years to effectively improve the conductivity, corrosion resistance and processability of polyaniline. [0003] Relevant studies have shown that: the magnetic field acting on organic macromolecules, particles or organisms will produce certain physical and chemical effects, the magnetic field can change the orientation of molecules, paramagnetic molecules can be arranged along the direction of the magnetic field, and the orientation of the conjug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02
Inventor 马利甘孟瑜刘昊杜新胜
Owner CHONGQING UNIV
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