Low Frequency Dielectric Properties of Polyether Electrolytes
Abstract
Beyond their interest as fundamental properties of a material, the dielectric constant and loss are of particular significance for ion conducting polymers. For example, the dielectric constant plays a fundamental role in the ability of a polymer to dissolve salts. The reason is that the dielectric constant is a measure of the reduction of Coulomb interactions and thus high dielectric constant fluids greatly reduce ion-ion interactions, inhibiting crystal formation. The dielectric loss is interesting as it probes a wide variety of phenomena including the electrical conductivity along with any relaxations which may be present in the material including that associated with the glass transition. Consequently, it is worth reviewing some of what is known concerning the dielectric properties of these materials. The discussion will be limited to poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1988
- Accession Number
- ADA196494
Entities
People
- John J. Fontanella
- Mary C. Wintersgill
Organizations
- United States Naval Academy