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Preparation method of three-dimensional chrysanthemum-shaped poly (3, 4-ethylenedioxythiophene) nanostructural material

A dioxyethyl, nanostructured technology, applied in the field of nanostructured materials of polythiophene, can solve the problems of no literature and patent reports, and achieve the effects of controllable scale synthesis, high specific surface area, and high electrical conductivity

Inactive Publication Date: 2012-10-03
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no literature and patent reports on the preparation method of polythiophene conductive polymers with 3D nano and / or micro structure. The present invention uses organic solvent, surfactant and water three-phase system to prepare high-conductivity polythiophene in one step. 3D "chrysanthemum-like" nanostructured poly(3,4-dioxyethyl)thiophene (PEDOT). This method mainly obtains "chrysanthemum-like" three-dimensional Structure and high conductivity, the method is simple, controllable and conducive to large-scale synthesis

Method used

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  • Preparation method of three-dimensional chrysanthemum-shaped poly (3, 4-ethylenedioxythiophene) nanostructural material
  • Preparation method of three-dimensional chrysanthemum-shaped poly (3, 4-ethylenedioxythiophene) nanostructural material

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Embodiment 1

[0019] a) Sodium succinate sulfonate is placed in a p-xylene solvent, ultrasonically and continuously stirred to dissolve the sodium succinate sulfonate, and the concentration of sodium succinate sulfonate in the resulting solution is 1.3mol / L;

[0020] b) Iron trichloride (FeCl 3 ) is placed in deionized water, and stirred to dissolve ferric chloride to obtain an orange-yellow aqueous solution that contains a concentration of 5mol / L ferric chloride;

[0021] c) under stirring conditions, the aqueous solution containing ferric chloride obtained in step b) is added to the solution obtained in step a), fully stirred so that the two solutions are mixed evenly, wherein: the added step b) contains ferric chloride The molar weight of the water in the aqueous solution is step a) 3 times of the molar weight of sodium succinate sulfonate;

[0022] d) Add monomer 3,4-dioxyethylthiophene (EDOT) to the orange-yellow mixed solution obtained in step c) under stirring conditions, wherein: t...

Embodiment 2

[0025] The preparation method and conditions are basically the same as in Example 1, except that the added step b) the molar weight of water in the aqueous solution containing iron trichloride is 6 times that of step a) sodium succinate sulfonate molar weight, and the single added The molar weight of 3,4-dioxyethylthiophene is 0.15 times of the molar weight of sodium succinate sulfonate in step a), and the poly(3,4-dioxyethyl)thiophene of three-dimensional "chrysanthemum shape" is still obtained For nanostructure materials, the particle size of the material remains unchanged, which is still about 700-800nm, and the electrical conductivity increases to 45.0S / cm.

Embodiment 3

[0027] The preparation method and conditions are basically the same as in Example 1, except that the concentration of sodium succinate sulfonate in the solution obtained by changing step a) is 1.6mol / L; and the step b) added by changing the water in the aqueous solution containing iron trichloride The molar amount is step a) 20 times of the sodium succinate sulfonate molar amount, still obtains the nanostructure material of the poly(3,4-dioxyethyl)thiophene of three-dimensional " chrysanthemum shape ", and the particle size of this material is different Change, still about 700 ~ 800nm, the conductivity further increased to 71.2S / cm.

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Abstract

Belonging to the field of conducting polymer materials, the invention relates to a preparation method of polythiophene three-dimensional (3D) nanostructural materials with high conductivity, especially to a one-step method for preparing a 3D chrysanthemum-shaped poly (3, 4-ethylenedioxythiophene) nanostructural material with high conductivity on the basis of a three-phase system of an organic solvent, a surfactant and water. The 3D chrysanthemum-shaped poly (3, 4-ethylenedioxythiophene) nanostructural material of the invention has conductivity of 30-140S / cm. The method in the invention is easy, practical, controllable and conducive to scale synthesis. According to the invention, mainly through controlling the mole ratio of deionized water to the surfactant as well as the concentration of an oxidant solution, the 3D chrysanthemum-shaped poly (3, 4-ethylenedioxythiophene) (PEDOT) nanostructural material can be obtained.

Description

technical field [0001] The invention belongs to the field of conductive polymer materials, and relates to a method for preparing polythiophene high-conductivity three-dimensional (3D) nanostructure materials, in particular to a one-step method for preparing high-conductivity materials based on an organic solvent, surfactant and water three-phase system A method for 3D "chrysanthemum-like" poly(3,4-dioxyethyl)thiophene (PEDOT) nanostructured materials. Background technique [0002] In recent years, nano- and micro-structured conductive polymer materials with controllable shape and size have many unique properties due to their regular structure and small size, especially 3D nano- and micro-structured materials, due to their special structure and function , has good application prospects in optical devices, sensing technology, supercapacitors, solar cells, electromagnetic shielding, superhydrophobic, etc., and has attracted widespread attention from domestic and foreign scienti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12
Inventor 胡秀杰白晓霞严峻孙承华周树云陈萍
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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