CLUSTERING OF IONS IN ORGANIC POLYMERS: A THEORETICAL APPROACH.

Abstract

Clustering of ions in organic polymers is treated from a theoretical point of view. It is shown that ions in organic media of low dielectric constant exist most probably as pairs or higher multiplets, even at relatively high temperatures. The maximum size of a non-crystalline and approximately spherical multiplet is shown to be determined by the surface areas and volumes of the participating chemical species and is of the order of 8 ion pairs or less. At relatively low temperatures, the ionic multiplets can aggregate to form a cluster, the factors involved in cluster formation being the elasticity of the chains and the electrical work of cluster collapse. Several simple geometries are assumed for ethylene-sodium methacrylate clusters, and the average inter-cluster distance for 4.5 mol % of the ionic component ranges from 44A to 95A. The experimentally determined repeat distance is of the order of 83A. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 30, 1969
Accession Number
AD0691456

Entities

People

  • Adi Eisenberg

Organizations

  • McGill University

Tags

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Compounds
  • Clustering
  • Collapse
  • Dielectric Permittivity
  • Elastic Properties
  • Ethylenes
  • Geometry
  • High Temperature
  • Low Temperature
  • Methacrylates
  • Organic Compounds

Readers

  • Materials Science and Engineering.
  • Polymer Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.