Electronic and Ionic Transport in Polymers
Abstract
A new family of conducting polymers, based on the thiophene- phenylene-thiophene repeat unit, has been prepared via electrochemical and chemical polymerization routes. Optical gaps have been correlated with calculated torsional angles. The benefit of this system lies in its facile derivatization of the phenyl ring. In addition to the unsubstituted polymer, the -CH3 and -OCH3 substituted polymers have been prepared. Our collaborative research on large scale preparations of electroactive polymers with General Dynamics Inc. has continued. Chemical modification of poly(pyrrole tosylate) and polypyrrole/poly(styrene sulfonate) films has been investigated along with the preparation of polypyrrole/polyurethane composite foams. Soluble copolymers of 3-butylthiophene/3-octylthiophene, 3-methylthiophene/3-octylthiophene and 3- methylthiophene/3-hexylthiophene have been prepared by FeCl3 polymerization and are being studied and evaluated. New polypyrrole/anthraquinone sulfonate polymers have been synthesized. The release of the anion has been monitored via UV/VIS spectroscopy, cycle voltammetry and hydrodynamic voltammetry. The quantity and rate of the anion released are dependent on the film thickness and the applied potential. The (open -circuit anion exchange kinetics of this system has also been quantified.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 24, 1989
- Accession Number
- ADA210654
Entities
People
- Dennis S. Marynick
- John R. Reynolds
- Krishnan Rajeshwar’
- Martin Pomerantz
- Timothy D. Shaffer
Organizations
- University of Texas at Arlington