Accession Number : ADA019452

Title :   Development of Liquid Crystal Systems for Air Force Display Application.

Descriptive Note : Final technical rept. Jan 72-Dec 74,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Rondeau,Roger E. ; Knaak,Lawrence E. ; Rosenberg,Herbert M. ; Steppel,Richard N.

Report Date : OCT 1975

Pagination or Media Count : 43

Abstract : A series of 4 (4')- alkoxyformyloxy- 4'(4)-alkylazoxybenzenes were prepared. The transition temperatures have been determined and the applicability of the nuclear magnetic resonance spectral shift reagent Eu (fod)3 to determine the mole percent of structural isomeric mixtures is demonstrated. A series of substituted p-cyanoazo and p-cyanoazoxy benzenes have been prepared. Their transition temperatures were determined by differential thermal analysis as well as microscopically.

Descriptors :   *Liquid crystals, *Display systems, Transition temperature, Azobenzenes, Esters, Alkylation, Carbonates

Subject Categories : Physical Chemistry
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE