Accession Number:

ADA210654

Title:

Electronic and Ionic Transport in Polymers

Descriptive Note:

Quarterly technical rept. 1 Apr-30 Jun 1989

Corporate Author:

TEXAS UNIV AT ARLINGTON DEPT OF CHEMISTRY AND BIOCHEMISTRY

Report Date:

1989-07-24

Pagination or Media Count:

7.0

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 polypyrrole tosylate and polypyrrolepolystyrene sulfonate films has been investigated along with the preparation of polypyrrolepolyurethane composite foams. Soluble copolymers of 3-butylthiophene3-octylthiophene, 3-methylthiophene3-octylthiophene and 3- methylthiophene3-hexylthiophene have been prepared by FeCl3 polymerization and are being studied and evaluated. New polypyrroleanthraquinone sulfonate polymers have been synthesized. The release of the anion has been monitored via UVVIS 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.

Subject Categories:

  • Industrial Chemistry and Chemical Processing
  • Physical Chemistry
  • Polymer Chemistry
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE