Chemical prepn process of nanometer polyethylene thienyl dioxide

A technology of polyethylenedioxythiophene and ethylenedioxythiophene, which is applied in the field of polyethylenedioxythiophene conductive materials, can solve problems such as application restrictions and environmental damage, and achieve the effect of excellent conductivity

Inactive Publication Date: 2007-06-06
TIANJIN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, this method requires a hard template with a specific microscopic configuration as an electrode, and after the polymerization is completed, it is necessary to remove the reaction template through a specific solvent, which may cause structural defects in the reaction product, and this method requires specific electrochemical instruments and equipment, which makes it further application is limited
Recently, it has been reported in the literature that one-dimensional nanotube-shaped and rod-shaped PEDOT (J.Jang, M.Chang, M.Yoon, Adv.Mater.2005, 17, 1616; X.Zhang , J.S.Lee, G.S.Lee, D.K.Cha, M.J.Kim, D.J.Yang, S.K.Manohar, Macromolecules.2006, 39, 470), the process of this method is simple, and the requirements for equipment are low, but to obtain the final product requires a large number of Washing with methanol and acetocyanide will cause environmental damage

Method used

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Experimental program
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Embodiment Construction

[0011] Implementation column 1:

[0012] Add 5.60 g of camphorsulfonic acid into 20 ml of deionized solution, and make it completely dispersed by ultrasonic treatment to prepare a solution. 0.3 ml of monomeric EDOT was added to the above solution. The mixture was cooled to 0° C. in an ice-water bath and stirred slowly at 30 rpm. Prepare 5ml of deionized aqueous solution of ferric chloride hexahydrate with a substance concentration of 0.47mol / L, put it in an ice-water bath to cool to 0°C, and then add the solution uniformly dropwise within 1 hour to the In the configured camphorsulfonic acid and EDOT mixture, the polymerization reaction is initiated. The reaction system was slowly stirred at a speed of 30 r / min in an ice-water bath at 0° C. for 24 hours. After the stirring was completed, a small amount of suspended particles could be seen in the reaction system. Next, the reaction system was left still for 48 hours in an ice-water bath at 0° C., and continued to react under ...

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Abstract

The present invention discloses chemical preparation process of nanometer polyethylene thienyl dioxide, and belongs to the field of conducting material preparing technology. The preparation process includes the following steps: compounding 0.5-1.2 mol/L concentration mixed solution of camphor sulfonic acid and ethylene thienyl dioxide, compounding 0.47-2.80 mol/L concentration solution of ferric trichloride, mixing them to initiate polymerization reaction at 0-5 deg.c; centrifugally separating and washing the product with deionized water to neutral, vacuum drying at 50-80 deg.c for 6-24 hr to obtain the navy blue polyethylene thienyl dioxide powder as the product. The preparation process is simple and environment friendly, and the prepared nanometer polyethylene thienyl dioxide has high conductivity, high crystallization degree and other physical characteristics, and possesses latent application in photoelectronic device field.

Description

technical field [0001] The invention relates to a chemical preparation method of polyethylenedioxythiophene nanorods, which belongs to the polyethylenedioxythiophene conductive material technology. technical background [0002] Polyethylenedioxythiophene [poly(3,4-ethylenedioxythiophene), PEDOT] attracts attention as a new type of conductive material, because compared with other conjugated polymers, PEDOT has high electrical conductivity, thermal stability and chemical, Good electrochemical stability and other excellent characteristics make it an excellent choice for polymer light-emitting diodes, solar cells, super capacitors, electromagnetic interference shielding, selective permeable membranes, electrochromic devices, antistatic, military camouflage, ship anti-corrosion and anti-fouling, Ideal materials for wave-absorbing materials, superconducting materials and information storage materials. [0003] Currently, there are two main methods for preparing PEDOT: chemical ox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12
Inventor 封伟李瑀
Owner TIANJIN UNIV
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