Accession Number : ADA288367

Title :   High Pressure Conductivity Study of Template Synthesized Polypyrrole: Observation of a Crossover from Three to One Dimensional Variable Range Hopping.

Descriptive Note : Technical interim rept.,

Corporate Author : COLORADO STATE UNIV FORT COLLINS DEPT OF CHEMISTRY

Personal Author(s) : Lorenz, B. ; Spatz, J. P. ; Hochheimer, H. D. ; Menon, V. ; Parthasarathy, R.

PDF Url : ADA288367

Report Date : NOV 1994

Pagination or Media Count : 18

Abstract : We have studied thin films composed of thin and thick wall template synthesized polypyrrole microtubules. We observe a crossover from three to one dimensional variable range hopping in our samples at low temperatutes. Our results clearly indicate that the geometry of the microtubules has an influence on the conductivity. The transition temperature from 3 to 1 dimensional variable range hopping shifts to lower temperatures when high pressure is applied. The results are discussed on the basis of the geometry of the microtubules.

Descriptors :   *CONDUCTIVITY, *HIGH PRESSURE, *TEMPLATES, * PYRROLES, LOW TEMPERATURE, MICROSTRUCTURE, HIGH RATE, SYNTHESIS, POLYMERS, ONE DIMENSIONAL, THIN FILMS, VARIABLES, THREE DIMENSIONAL, TRANSITION TEMPERATURE, GEOMETRY, TUBULAR STRUCTURES, WALLS.

Subject Categories : Polymer Chemistry
      Organic Chemistry
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE