Accession Number : ADA137812

Title :   Electrohydrodynamic and Flow Instabilities in Nematic Polymers.

Descriptive Note : Final rept. 1 Dec 80-30 Nov 83,

Corporate Author : DUKE UNIV DURHAM NC DEPT OF CHEMISTRY

Personal Author(s) : Krigbaum,W R

PDF Url : ADA137812

Report Date : 28 Jan 1984

Pagination or Media Count : 10

Abstract : A nematic phase interacts more strongly with an external field than does an ordinary liquid because the molecules in the nematic phase interact cooperatively. We have investigated a variety of thermotropic polymers to ascertain which of the polymers having mesogenic units as part of the main chain, and the conditions under which these occur. The higher viscosity of a polymeric mesophase leads to longer domain formation times, but it does offer some advantages which can be exploited under certain circumstances. (Author)

Descriptors :   *Liquid crystals, *Polymers, *Electrohydrodynamics, Flow, Stability, Interactions, Phase, Viscosity, Elastic properties, Constants, Molecules, Alignment, Surfaces, Electric fields, Frequency, Molecular weight, Turbulence, Dynamics, Scattering, Temperature, Melting point, Frequency

Subject Categories : Crystallography
      Atomic and Molecular Physics and Spectroscopy
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE