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Journal of Materials Science

, Volume 29, Issue 15, pp 4131–4133 | Cite as

Chemical preparation, direct-current conductivity and thermopower of polyaniline and polypyrrole composites

  • E. Dalas
  • S. Sakkopoulos
  • E. Vitoratos
Papers

Abstract

Polyaniline and polypyrrole composites were synthesized by doping during polymerization with a variety of organic and inorganic groups. Their direct-current (d.c.) conductivity was measured and their activation energy was estimated at room temperature. From thermopower measurements on polypyrrole composites a “metallic” p-type conductivity in the fibrils was revealed, although for polyaniline an n-type to p-type change of the carriers into the metallic “islands” was displayed at about 320 K. The introduction of the various groups, in addition to this change in the electrical properties, also resulted in conducting polymers capable of surface complexation with metal ions.

Keywords

Polymer Activation Energy Fibril Electrical Property Polyaniline 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • E. Dalas
    • 1
  • S. Sakkopoulos
    • 2
  • E. Vitoratos
    • 2
  1. 1.Department of ChemistryUniversity of PatrasPatrasGreece
  2. 2.Department of PhysicsUniversity of PatrasPatrasGreece

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