Dielectric relaxation in polyvinyl alcohol–polypyrrole–multiwall carbon nanotube composites below room temperature

Goutam Chakraborty, Kajal Gupta, Dipak Rana and Ajit Kumar Meikap

  • ANSN Editor
Keywords: nano

Abstract

Polyvinyl alcohol–polypyrrole–multiwall carbon nanotube composite polymer films have been synthesized by a chemical oxidative polymerization technique. Dielectric properties have been measured in the frequency range from 20 Hz to 1 MHz and in the temperature range 77 ≤ T ≤  300 K. Electric modulus vector analysis gives the presence of dielectric relaxation peaks for different composites from which the activation energies have been calculated

Published
2013-04-02
Section
Regular articles