Mechanical Grinding: An Effective Method to Control the Conductivity of p-Toluene Sulfonic Acid Doped Polypyrrole

With four-probe and laser light scattering techniques, we have studied the dependencies of the conductivity and the particle sizes of p-toluene sulfonic acid doped polypyrrole on the mechanical grinding time. As the chemically synthesized polypyrrole was mechanically grounded in a mortar from 0 to 8...

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Bibliographic Details
Published in:Key engineering materials 2009-02, Vol.407-408, p.573-576
Main Authors: She, Zhuo Ran, Zhou, Fu Fang, Pan, Chun Xu, Huang, Yuan Ming, Zhai, Bao Gai
Format: Article
Language:English
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Summary:With four-probe and laser light scattering techniques, we have studied the dependencies of the conductivity and the particle sizes of p-toluene sulfonic acid doped polypyrrole on the mechanical grinding time. As the chemically synthesized polypyrrole was mechanically grounded in a mortar from 0 to 8 hours, its conductivity decreased from 607 to 10 S/m while and its particle size decreased from 27 to 4 m. If the mechanical grinding continued, the conductivity of the polymer was found to be up to 1680 S/m. Our results have demonstrated that mechanical grinding is an effective method to control the conductivity of the p-toluene sulfonic acid doped polypyrrole.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.407-408.573