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Characterization on the Electrical Properties of PDMS Nanocomposites by Conducting Polymer Nanowires

Published online by Cambridge University Press:  28 January 2011

Ping Du ,
Xi Lin  and
Xin Zhang
Ping Du
Affiliation:
Department of Mechanical Engineering, Boston University, Boston, MA 02215, U.S.A.
Xi Lin
Affiliation:
Department of Mechanical Engineering, Boston University, Boston, MA 02215, U.S.A.
Xin Zhang
Affiliation:
Department of Mechanical Engineering, Boston University, Boston, MA 02215, U.S.A.
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Abstract

Polydimethylsiloxane (PDMS) is one of the most used materials in bio-applications. However, previous works were mainly focus on the mechanical aspect. In this paper we presented a practical and efficient approach to enhance the electrical properties of PDMS by using conducting polymer nanowires (CPNWs). The nanowires were synthesized using template method and added in PDMS to form nanocomposites. The dielectric constants of the composites were characterized by impedance measurements, and the dielectric relaxation behavior and the volume fraction of CPNWs was investigated. Based on the percolation theory a much lower threshold (5.3 vol%) was achieved.

Keywords

dielectric propertiescompositenanostructure

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