Accession Number:

ADA148416

Title:

Estimation of the Rate of Electron Transfers between two Contacting Polymer Surfaces.

Descriptive Note:

Technical rept.,

Corporate Author:

NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1984-10-26

Pagination or Media Count:

15.0

Abstract:

A bilayer of redox polymer films, Ptpoly-Osbpy2vpy22polyRuvbpy32, is coated on a Pt electrode. Reduction of the poly-Ru3 outer film of a pre-oxidized bilayer, Ptpoly-Os3poly-Ru3 is controlled by the rate of electron diffusion through the inner, polyOs23 film. When oxidizing the outer poly-Ru2 film of a reduced Ptpoly-Os2poly-Ru2 bilayer, however, the rate of oxidation depends largely on the kinetics of electron transfer between the ca. monolayer of poly-Os3 and poly-Ru2 sites in contact at the interface between the two polymer films. The electron diffusion kinetics in the two polymer films perturb the interfacial reaction rate only slightly, so that a lower limit to the interfacial electron transfer rate constant is available.

Subject Categories:

  • Physical Chemistry
  • Electrical and Electronic Equipment
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE