Transport Properties of Liquid Crystal Doped Films of Polyvinylferrocene.
Abstract
The incorporation of the room temperature nematic phase 4-pentyl, 4' -cyano-biphenyl (K-15) into films of polyvinylferrocene is shown to substantially later the rate of charge transport through the polymer film. The temperature dependance of the effect is especially dramatic above and below the nematic/isotropic transition temperature of K-15 (36 C). The observed effects are attributed to changes in the diffusion coefficient of the immobilized ferrocene groups due to changes in the viscosity of the film as well as to aggregation. In some cases, a split ferrocene wave was observed and this was attributed to aggregation effects of the ferrocene sites with K-15. At K-15 concentrations below 1.3mM the data indicates a 1:2 K-15/ferrocene aggregate and 1:1 at higher k-15 concentrations. Keywords: Electrochemistry.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 25, 1986
- Accession Number
- ADA166918
Entities
People
- Héctor D. Abruña
- Robert D. Mariani
Organizations
- Cornell University Department of Chemistry and Chemical Biology