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Chemical preparation method for polyethyenedioxy-thiophene hollow balls

A technology of polyethylenedioxythiophene and ethylenedioxythiophene, which is applied in the field of chemical preparation of polyethylenedioxythiophene hollow spheres, can solve the problems of unfavorable environment and complicated treatment process, and achieve simple and mature process and good application Prospect, good environmental friendliness effect

Inactive Publication Date: 2009-04-15
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, some scholars have also prepared nanotubes and nanorods of polyethylenedioxythiophene by the inverse emulsion method (X.Z.Zhang, J.S.Lee, G.S.Lee, D.K.Cha, M.J.Kim, D.J.Yang, S.K.Manohar, Macromolecules 2006, 39, 470 ), but a large amount of organic solvents and emulsifiers are used in the polymerization system, which is not conducive to the environment, and the treatment process after the reaction is also relatively complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In the first step, 0.24 mL of glacial acetic acid was dissolved in 21 mL of deionized water to prepare an aqueous solution with a concentration of 0.20 mol / L. Then, 0.3 mL of ethylenedioxythiophene was added to the above solution, and stirred at a speed of 40 r / min for 30 minutes to make the system reach a stable state, and an emulsion of ethylenedioxythiophene was obtained.

[0014] In the second step, prepare 8 mL of ammonium persulfate deionized aqueous solution with a concentration of 0.5 mol / L. Air was introduced into the ethylenedioxythiophene emulsion through a nozzle with an aperture of 3 μm, and the prepared ammonium persulfate aqueous solution was added dropwise within 30 minutes. During the dropwise addition, a stirring speed of 40 r / min was maintained. The reaction was continued for 24 hours. A blue suspension of polyethylenedioxythiophene was obtained.

[0015] In the third step, after the reaction is finished, the product is washed with deionized water ...

Embodiment 2

[0017] In the first step, 0.36 mL of glacial acetic acid was dissolved in 21 mL of deionized water to prepare an aqueous solution with a concentration of 0.30 mol / L. Then, 0.3 mL of ethylenedioxythiophene was added to the above solution, and stirred at a speed of 40 r / min for 40 minutes to make the system reach a stable state, and an emulsion of ethylenedioxythiophene was obtained.

[0018] In the second step, prepare 8 mL of ammonium persulfate deionized aqueous solution with a concentration of 0.7 mol / L. Air was introduced into the ethylenedioxythiophene emulsion through a nozzle with an aperture of 5 μm, and the prepared ammonium persulfate aqueous solution was added dropwise within 30 minutes. During the dropwise addition, a stirring speed of 40 r / min was maintained. The reaction was continued for 24 hours. A blue suspension of polyethylenedioxythiophene was obtained.

[0019] In the third step, after the reaction is finished, the product is washed with deionized water ...

Embodiment 3

[0021] In the first step, 0.36 mL of glacial acetic acid was dissolved in 21 mL of deionized water to prepare an aqueous solution with a concentration of 0.30 mol / L. Then 0.3 mL of ethylenedioxythiophene was added to the above solution, and stirred at a speed of 50 r / min for 20 minutes to make the system reach a stable state, and an emulsion of ethylenedioxythiophene was obtained.

[0022] In the second step, prepare 10 mL of ammonium persulfate deionized aqueous solution with a concentration of 0.7 mol / L. Air was introduced into the ethylenedioxythiophene emulsion through a nozzle with an aperture of 6 μm, and the prepared ammonium persulfate aqueous solution was added dropwise within 50 minutes. During the dropwise addition, a stirring speed of 50 r / min was maintained. The reaction was continued for 24 hours. A blue suspension of polyethylenedioxythiophene was obtained.

[0023] In the third step, after the reaction is finished, the product is washed with deionized water ...

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Abstract

The present invention discloses chemical process of preparing hollow ball of polyethylene thiophene dioxide, and belongs to the field of conducting material preparing technology. The preparation process includes the following steps: compounding water solution of glacial acetic acid in certain concentration and adding ethylene thiophene dioxide while stirring to form emulsion; intruding air and dropping ammonium persulfate solution to polymerize; filtering the resultant and washing the product to obtain hollow ball of polyethylene thiophene dioxide. The preparation process is simple and environment friendly, and the prepared hollow ball of polyethylene thiophene dioxide is one kind of semiconductor material with great specific surface area and may find excellent application foreground in electromagnetic shielding and organic photoelectronic device.

Description

technical field [0001] The invention relates to a chemical preparation method of polyethylene dioxythiophene hollow spheres. It belongs to the preparation technology of polyethylenedioxythiophene conductive material. Background technique [0002] In recent years, conducting polymers have attracted extensive attention as functional materials. Functional materials of polyaniline, polypyrrole, polythiophene and other conductive polymers have been developed, some of which have been successfully commercialized and replaced the original materials. Among many conductive polymers, polyethylenedioxythiophene [Poly(3,4-ethylenedioxythiophene), PEDOT] has excellent properties such as high electrical conductivity, good stability, and transparent oxidized film (J.W.Choi, M.G.Han , S.Y.Kim, S.G.Oh, S.S.Im, Synth.Met.2004, 141, 293) and become one of the most promising conductive polymers for making functional materials. [0003] Direct synthesis of conductive polymers with special micr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12C08J3/16
Inventor 封伟吴隽
Owner TIANJIN UNIV
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