Accession Number : ADA323138

Title :   Structure and Physical Properties of Monolayers and Multilayers of Liquid Crystals Showing Bulk Ferroelectric Properties.

Descriptive Note : Final technical rept. 29 Sep 90-27 Jan 94,

Corporate Author : FLORIDA UNIV GAINESVILLE DEPT OF CHEMISTRY

Personal Author(s) : Duran, R. S.

PDF Url : ADA323138

Report Date : 19 MAR 1997

Pagination or Media Count : 3

Abstract : A series of amphiphilic low molecular weight and polymeric compounds showing bulk ferroelectric liquid crystalline behavior was investigated as monolayers at the air/water interface and as thin films on solid substrates. The polymers investigated contained siloxane backbones and pendant liquid crystalline side chains. Investigations at the air/water interface used the Langmuir technique. The molecular packing, morphology, pressure relaxation, and thermodynamics of mixing were investigated. Investigations of thin films utilized Langmuir Blodgett techniques and layer-by-layer deposition to build defined multilayers. X-ray techniques were subsequently utilized by staff at NRL to quantify film thickness, molecular structure, and superlattice stability. Additional films were deposited on microelectrode arrays and switching studies were performed at NRL.

Descriptors :   *POLYMERS, *LIQUID CRYSTALS, *MOLECULAR STRUCTURE, *FERROELECTRIC CRYSTALS, LAYERS, PHYSICAL PROPERTIES, THERMODYNAMICS, SUPERLATTICES, THIN FILMS, X RAYS, ELECTRODEPOSITION.

Subject Categories : Polymer Chemistry
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE