Potential Dependence of the Conductivity of Highly Oxidized Polythiophenes, Polypyrroles, and Polyaniline: Finite Windows of High Conductivity
Abstract
In situ measurements of the relative conductivity of polythiophenes, polyaniline, and polypyrroles as a function of electrochemical potential reveal that they have finite potential dependent windows of high conductivity. The polymers studied, polyaniline and I-VI, are prepared by anodic polymerization onto microelectrode arrays of the appropriate monomer: thiophene, I, 3- methylthiophene, II, 3-phenylthiophene, III, 1-Methyl-1'-(3-thiophene-3-yl)- propyl-4,4'-bipyridinium, IV, 3,4-dimethylpyrrole, V, and N-methylpyrrole, VI. The use of liquid SO2/electrolyte medium as the electrochemical solvent makes it possible to define the window of high conductivity because it allows the polymers to be reversibly oxidized to a greater extent than has previously been achieved.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 16, 1990
- Accession Number
- ADA222024
Entities
People
- David Ofer
- Mark S. Wrighton
- Richard M Crooks
Organizations
- Massachusetts Institute of Technology