Accession Number : ADA313860

Title :   Thermopower and High Pressure Electrical Conductivity Measurements of Template Synthesized Polypyrrole.

Descriptive Note : Technical rept.,

Corporate Author : COLORADO STATE UNIV FORT COLLINS DEPT OF CHEMISTRY

Personal Author(s) : Orgzall, I. ; Lorenz, B. ; Ting, S. T. ; Menon, V. ; Hochheimer, H. D.

PDF Url : ADA313860

Report Date : 1996

Pagination or Media Count : 21

Abstract : We present results of high pressure - low temperature studies of template synthesized polypyrrole. Thermopower measurements at ambient pressure show a linear temperature dependence, which supports the intrinsic metallic character of the samples. The dc conductivity follows the typical variable C C range hopping behavior at low temperatures. The application of pressure C results in an increasing localization length and an enhancement of the conductivity, especially at very low temperatures. The comparison with bulk samples of polypyrrole suggests that the template synthesis increases the localization length of the charge carriers which in turn results in an increase of the dc electrical conductivity.

Descriptors :   *POLYMERS, *ELECTRICAL CONDUCTIVITY, *PYRROLES, *DIRECT CURRENT, THERMAL PROPERTIES, OPTIMIZATION, POLYMERIZATION, THIN FILMS, CHARGE CARRIERS, HIGH PRESSURE, POLYMERIC FILMS, MEMBRANES, MOLECULAR STRUCTURE, DOPING.

Subject Categories : Polymer Chemistry
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE