Accession Number:

AD0271121

Title:

DIELECTRIC RELAXATION AND STRUCTURE

Descriptive Note:

Corporate Author:

PRINCETON UNIV N J

Personal Author(s):

Report Date:

1962-01-06

Pagination or Media Count:

1.0

Abstract:

Progress was made in understanding the relations between molecular relaxation times and molecular size and shape, dipole location in the molecule, and viscosity of the material. New evidence was obtained on the distribution of relaxation times and the mechanisms involved. The intramolecular rotation of several groups was consistent with their sizes, and the corresponding relaxation times have, in some instances, given concrete evidence of steric repulsion. Evidence was obtained of a shift of electronic charge with rotation of an aromatic ring around its bond to an O atom and, probably, also to a N atom. Analysis of previous measurements on solids showed relationships between dielectric behavior, molecular shape, and plasticity or rigidity of the solid. Microwave measurements of dielectric loss established the non-polarity of seemingly symmetrical molecules. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE