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

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Abstract:

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.

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Periodical:

Key Engineering Materials (Volumes 407-408)

Pages:

573-576

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.407-408.573

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Online since:

February 2009

Authors:

Fu Fang Zhou, Bao Gai Zhai, Zhuo Ran She, Yuan Ming Huang, Chun Xu Pan

Keywords:

Conductivity, Laser Light Scattering, Mechanical Grinding, Polypyrrole

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© 2009 Trans Tech Publications Ltd. All Rights Reserved

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