Loss Mechanisms in Polar Polymeric Dielectrics

Abstract

Polymeric dielectrics have applications in energy storage devices but their potential utility can be compromised by the presence of loss processes. The present project was concerned with identifying the molecular mechanisms underlying and responsible for losses. The program and results involved a two- fold approach to understanding loss processes occurring below the glass transition. This is an important regime since the polymers have structural integrity in the glassy state. One of the two approaches was experimental and the other involved molecular modelling. The ester group was taken a chemical structural model for loss processes originating as the result of flexible side group motion in an otherwise glassy polymer energy storage, Dielectric, Dielectric loss, Dielectric constant, Dielectric loss mechanism, Dielectric relaxation processes, Subglass relaxation processes, Polymeric dielectric, Molecular modelling.

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Document Details

Document Type
Technical Report
Publication Date
Apr 27, 1989
Accession Number
ADA209031

Entities

People

  • Richard H. Boyd

Organizations

  • University of Utah

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Bulk Materials
  • Copolymers
  • Dielectric Permittivity
  • Dielectrics
  • Energy
  • Energy Storage
  • Environment
  • Ethylenes
  • Heat Of Activation
  • Macromolecules
  • Materials
  • Molecular Structure
  • Monte Carlo Method
  • Polymers
  • Scientists
  • Structural Integrity

Readers

  • Computational Modeling and Simulation
  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.