首页|Effect of mortar-pestle grinding on conductivity of ferric chloride doped polypyrrole

Effect of mortar-pestle grinding on conductivity of ferric chloride doped polypyrrole

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  • NETL
  • NSTL
  • Trans Tech Publications Ltd
With four-probe technique, we investigated the effects of the mortar-pestle grinding on the conductivity of ferric chloride doped conducting polymer polypyrrole, which had been synthesized by in situ polymerizing the monomer pyrrole in aqueous solutions in the presence of the oxidant iron (III) chloride. As the mortar-pestle grinding duration increased from 0 to 4 hours, the conductivity of the synthesized polypyrrole was found to decrease from about 100 to 10 S/m. In the meantime, the sizes of the grinded polymeric particles were found to decrease from 40.6 to 3.36 μm as the grinding duration increased from 0 to 4 hours. Our results demonstrated that the grinding shortened conjugation lengths of the polymeric chains should be responsible for the decrease in the conductivity of the polymer.

mortar-pestle grindingpolypyrroleconductivityconjugation lengthlaser light scattering

Yuan Ming Huang、Fu-fang Zhou、Zhuo-ran She、Chunxu Pan

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

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

School of Physical Science & Technology, Southwest University, Chongqing, China

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

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2010

10.4028/www.scientific.net/KEM.428-429.497

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.428/429
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