首页|Conductivity and thermal-stability of 5-sulfosalicylic acid sodium doped polypyrrole

Conductivity and thermal-stability of 5-sulfosalicylic acid sodium doped polypyrrole

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  • Trans Tech Publications Ltd
By varying the dopant-to-pyrrole ratio in a wide range from 0 to 60% a series of 5-sulfosalicylic acid sodium doped polypyrrole was synthesized in situ in aqueous solution with ferric chloride as the oxidant. The resulting polypyrroles were characterized with the four-probe, laser light scattering and thermo-gravimetry analysis, differential thermal analysis, respectively. Our results indicate that the particle size plays a determinative role to tune the conductivity in the studied range of dopant concentration; and this series of polypyrrole with size-tuned-conductivity exhibits little less thermal-stability although its size and conductivity changes simultaneously and acutely with the dopant concentration. The association of the conductivity with particle size was interpreted in terms of a theoretical model proposed by Baughman and Shacklelette.

polypyrrole5-sulfosalicylic acid sodiumconductivityparticle sizelaser light scatteringthermal-stability

Fu-fang Zhou、Bao-gai Zhai、Chunxu Pan、Yuan Ming Huang

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College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China Department of Physics, Wuhan University, Wuhan, Hubei 430072, China

Modern Educational Technology Center, Yunnan Normal University, Yunnan 650092, China

Department of Physics, Wuhan University, Wuhan, Hubei 430072, China

College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China

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2010

10.4028/www.scientific.net/KEM.428-429.579

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.428/429
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