Physics of Mesomorphic Compounds.

Abstract

This final report summarizes the physical behavior of over 200 cholesteric liquid crystals including transition temperatures, heats of transition, temperature sensitivity of visible selective reflection spectra, the effect of impurities, combining liquid crystals, and behavior in a thermal-imaging system. Eleven homologous series of alkanoates omega phenylalkanoates, alkyl carbonates, and S-alkyl thiocarbonates of cholesterol, cholest-5-en-3 Beta-thiol, and 5 alpha-cholestan-3 Beta-o1 were investigated. Twenty liquid crystals were found to have a cholesteric color spectral range of 0.2 C or less. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1978
Accession Number
ADA070539

Entities

People

  • Arlin J. Brown
  • Reinhard D. Ennulat

Organizations

  • United States Army Communications-Electronics Command

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Crystal Structure
  • Crystals
  • Electro-Optics
  • Glass Transition Temperature
  • Heat Energy
  • Materials
  • Measurement
  • Melting Point
  • Optical Phenomena
  • Optical Properties
  • Optics
  • Phase Diagrams
  • Phase Transformations
  • Scattering
  • Tiles
  • Transition Temperature

Readers

  • Materials Science and Engineering.
  • Polymer Science and Technology
  • Spectroscopy.