Accession Number : AD0691456

Title :   CLUSTERING OF IONS IN ORGANIC POLYMERS: A THEORETICAL APPROACH.

Descriptive Note : Technical rept.,

Corporate Author : MCGILL UNIV MONTREAL (QUEBEC) DEPT OF CHEMISTRY

Personal Author(s) : Eisenberg,Adi

Report Date : 30 JUL 1969

Pagination or Media Count : 37

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)

Descriptors :   (*POLYMERS, SOLUTIONS(MIXTURES)), IONS, SURFACE PROPERTIES, THERMODYNAMICS, MOLECULAR STRUCTURE, POLYETHYLENE PLASTICS, GEOMETRY, CANADA

Subject Categories : Plastics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE