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Soluble conductive polymer and method for preparing same

一种导电聚合物、溶液的技术，应用在可溶性导电聚合物及其制备领域，能够解决常规导电聚合物难等问题，达到降低制备成本、制备成本低的效果

Inactive Publication Date: 2011-01-19
李成柱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional conductive polymers are difficult to apply to various end uses because they are soluble in a minimum amount of specific organic solvents only when doped with specific dopants as described above

Method used

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  • Soluble conductive polymer and method for preparing same
  • Soluble conductive polymer and method for preparing same
  • Soluble conductive polymer and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Embodiment 1: Preparation of conductive polymer polyaniline and use it to form conductive film

[0074] At room temperature, 0.2 mol of aniline monomer was placed in an Erlenmeyer flask containing 600 ml of methyl ethyl ketone, and stirred using a magnetic stirrer. In this solution, add 0.1 mole of sulfuric acid as doping agent, stir for 30 minutes, add 0.25 mole of ammonium persulfate ((NH 4 ) 2 S 2 o 8 ), reacted for 48 hours or longer (when the viscosity of the solution increases and thus precipitates are generated, 5% by weight or more of another solvent other than methyl ethyl ketone is added based on the total weight of the solution, thereby enabling stirring to be performed) . The reaction solution was filtered to generate a conductive polymer solution.

[0075] A thin film was fabricated using this conductive polymer solution, and its conductivity, transmittance, and sheet resistance were measured. The result is a film with 10 -4 S / cm conductivity, and a ...

Embodiment 2

[0077] Embodiment 2: Preparation of conductive polymer polyaniline and use it to form conductive film

[0078] At room temperature, 0.2 mol of aniline monomer was placed in an Erlenmeyer flask containing 600 ml of methyl ethyl ketone, and stirred using a magnetic stirrer. In this solution, add 10 milliliters of water and 0.1 mole of sulfuric acid as doping agent, further add 10 milliliters of N-methylpyrrolidone (NMP) as doping aid, stir for 30 minutes, add 0.25 mole of ammonium persulfate (NH 4 ) 2 S 2 o 8 ), then react for 24 hours or more (when the viscosity of the solution increases and thus precipitates are generated, adding 5% by weight or more of another solvent other than methyl ethyl ketone based on the total weight of the solution, thereby enabling stirring ). The reaction solution was filtered to generate a conductive polymer solution.

[0079] Thin films were fabricated using this conductive polymer solution, and their conductivity, transmittance, and sheet re...

Embodiment 3

[0080] Embodiment 3: Preparation of conductive polymer polyaniline and use it to form conductive film

[0081] Conductive polymer solution is prepared in the same manner as in Example 2, except that 10 milliliters is selected from dimethylsulfoxide (DMSO), dimethylformamide (DMF), methanol, ethanol, propanol, butanol , isopropanol, tetrahydrofuran (THF), ethyl acetate, and butyl acetate in place of 10 ml of NMP. Using the conductive polymer solution thus prepared to produce a film, the conductivity, transmittance and sheet resistance of the film were almost the same as those when 10 ml of NMP was used as a doping aid.

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Abstract

Provided is a conductive polymer which is doped by acid, and a preparation method therefor. The conductive polymer has a base form with a weight average molecular weight of 5,000 or lower, and solubility for a polar organic solvent of 3% or higher. The conductive polymer of the present invention is soluble by a variety of polar organic solvents, which allows for free selection of solvent in accordance with the purpose of use and assures a broad range of industrial application. Further, the method for preparation of the conductive polymer according to the present invention is simple and reduces the amount of waste water, thereby reducing cost and contributing to environmental protection.

Description

technical field [0001] The present invention relates to a soluble conductive polymer and a method for preparing the same, and more particularly, to a conductive polymer having a low molecular weight, which is produced using a molecular weight-controlled synthesis method, thereby effectively dissolving in various polar organic solvents, and Methods of preparing such conductive polymers are involved. Background technique [0002] Generally, polyaniline is produced in the form of basic polyaniline by reacting aniline monomer with an oxidizing agent in the presence of aqueous hydrochloric acid or sulfuric acid to obtain polyaniline salt, and then neutralizing the polyaniline salt with alkali. Alkaline polyaniline, which is a non-conductor, can only be given conductivity when it is doped with acid. The conductive polyaniline thus produced is insoluble in most organic solvents and does not melt even when heated, which results in poor processability thereof. Also, the production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02
CPCC08K5/20C08G61/124C08G73/0266C08K5/41C08G2261/3223C08G61/126C08L65/00C08K5/3415C08L79/02C08G2261/792C08G73/00C08G73/02C08L79/00C08L101/12
Inventor 李成柱赵胜九李弘燮金昇圭
Owner 李成柱
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