ANISOTROPY OF THE CONDUCTIVITY IN POLYANILINE FILMS - EFFECT OF CHAIN ORIENTATION AND HYDRATION

Travers, JP; Leguyadec, P; Adams, PN; Laughlin, PJ; Monkman, AP

Abstract

Proton relaxation times T-1 and DC conductivity have been measured on unstretched and stretched polyaniline films, in the dried and the hydrated states. It is shown that polaron motion is highly anisotropic at the chain scale and that stretching increases interchain hoppings. On stretched films, hydration induces an increase of the conductivity but a decrease of its anisotropy. The data are accounted for in a simple model which links the macroscopic transport properties to the microscopic ones.

Citation

Travers, J., Leguyadec, P., Adams, P., Laughlin, P., & Monkman, A. (1995). ANISOTROPY OF THE CONDUCTIVITY IN POLYANILINE FILMS - EFFECT OF CHAIN ORIENTATION AND HYDRATION. Journal de chimie physique, 92(4), 1009-1012

• Journal Article Type: Article
• Publication Date: 1995-04
• Journal: Journal de Chimie Physique et de Physico-Chimie Biologique
• Print ISSN: 0021-7689
• Publisher: EDP Sciences
• Volume: 92
• Issue: 4
• Pages: 1009-1012
• Keywords: POLYANILINE; TRANSPORT ANISOTROPY; SPIN DYNAMICS; HYDRATIONSPIN DYNAMICS