Preparation of TiO2/PANI composites in the presence of surfactants and investigation of electrical properties

被引：101

作者：

Yavuz, Ayse Gul ^{[1
]}

Gok, Aysegul ^{[1
]}

机构：

[1] Suleyman Demirel Univ, Fac Sci & Arts, Dept Chem, TR-32260 Isparta, Turkey

来源：

SYNTHETIC METALS | 2007年 / 157卷 / 4-5期

关键词：

polyaniline; titanium dioxide; composite; thermal aging; surfactant;

D O I：

10.1016/j.synthmet.2007.03.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In situ polymerization was carried out in the presence of titanium dioxide (TiO2) to synthesize TiO2/polyaniline (TiO2/PANI) composite in an aqueous medium containing anionic (sodium dodecylbenzenesulfonate), DBSNa, cationic (tetradecyltrimethylammonium bromide), TTAB, and nonionic surfactants (poly(ethylene oxide) (20) sorbitan monolaurate), Tween 20). The composites were characterized by FTIR, UV-vis spectroscopy, scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and Gouy balance measurements. The FTIR and UV-vis spectra reveal that the interaction between TiO2/PANI composite and surfactants. The anionic and cationic surfactants incorporated with TiO2/PANI composite structure. The stability of the composites in terms of direct-current electrical conductivity retention was studied in isothermal conditions. Electrical conductivity measurements indicate that the conductivity of TiO2/PANI synthesized in the presence of the cationic surfactant has the highest conductivity value. All composites showed negative mass magnetic susceptibility values. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：235 / 242

页数：8

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