Potential Dependence of Electrical Conductivity and Chemical Charge Storage of Poly(pyrrole) Films on Electrodes.

Abstract

The electrical conductivity of solvent and electrolyte-wetted poly(pyrrole) films is measured, both statically and dynamically, as a function of the potential applied to an electrode in contact with the film. The applied potential determines the film oxidation state. Poly(pyrrole) electrical conductivity is ohmic and independent of potential from 0 to +0.4V vs. SSCE, and decreases and becomes less ohmic at more negative potentials. Measurements of the chemically reactive charge stored in poly(pyrrole) as a function of potential were combined with the electrical conductivity results to yield a profile of electrical conductivity vs. average charge per monomer site in the polymer. Electrical conductivity is independent of monomer charge above about 0.15 holes/monomer unit. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 26, 1984
Accession Number
ADA148513

Entities

People

  • B. J. Feldman
  • P. Burgmayer
  • Ryan Murray

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Capacitance
  • Chemistry
  • Conductive Polymers
  • Conductivity
  • Current Density
  • Electrical Conductivity
  • Electrical Properties
  • Electrodes
  • Electron Transfer
  • Energy Storage
  • Films
  • Measurement
  • Polymeric Films
  • Polymers
  • Resistance
  • Steady State
  • Thick Films

Fields of Study

  • Materials science

Readers

  • Electrochemical Surface Science
  • Plasma Physics.
  • Polymer Science and Technology