Improvement of the electrosynthesis and physicochemical properties of poly(3,4-ethylenedioxythiophene) using a sodium dodecyl sulfate micellar aqueous medium

被引：330

作者：

Sakmeche, N ^{[1
]}

Aeiyach, S ^{[1
]}

Aaron, JJ ^{[1
]}

Jouini, M ^{[1
]}

Lacroix, JC ^{[1
]}

Lacaze, PC ^{[1
]}

机构：

[1] Univ Paris 07, Inst Topol & Dynam Syst, Assoc CNRS, UPRES A 7086, F-75005 Paris, France

来源：

LANGMUIR | 1999年 / 15卷 / 07期

关键词：

D O I：

10.1021/la980909j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrosynthesis of poly(3,4-ethylenedioxythiophene) (PEDOT) films was performed in a micellar aqueous solution containing sodium dodecyl sulfate (SDS) by cyclic voltammetry, chronoamperometry, and chronopotentiometry on a platinum electrode. The electrocatalytic effect of SDS was characterized by a significant decrease of the EDOT oxidation potential (E-p) in the micellar medium relative to 0.1 M LiClO4 acetonitrile as well as aqueous solutions. Linear variation off, with SDS concentration indicated the formation of a pseudocomplex (K-eq = 5.4 x 10(3) M-1). PEDOT films were characterized electrochemically and spectroscopically (UV-visible, X-ray photoelectron spectroscopy, IR, Raman spectra). Regular, well-ordered, and adherent films were obtained in SDS medium. The PEDOT film morphologies investigated by atomic force microscopy suggested the possible presence of columnar structures when the electrosynthesis is performed in the micellar medium.

引用

页码：2566 / 2574

页数：9

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