Accession Number : AD0645539

Title :   THEORETICAL STUDIES OF COMPLEXED TRANSITION METAL THERMOPHOTOTROPIC SYSTEMS.

Descriptive Note : Final rept., 1 Apr 65-31 Mar 66,

Corporate Author : NUCLEAR RESEARCH ASSOCIATES INC LONG ISLAND CITY N Y

Personal Author(s) : Goodman,Jerome ; Grand,Stanley ; Mook,Sarah

Report Date : AUG 1966

Pagination or Media Count : 37

Abstract : Studies were undertaken on heat- and light-induced darkening of films and solutions containing high concentrations of copper bromide. Previous work had shown that the reaction was basically thermal, with darkening occurring as a result of equilibrium shifts to give dark copper complexes, and of reversible solvent loss to effectively increase the copper salt concentration. This new work demonstrated that the darkening due to changes in equilibrium constants could be increased by varying the solvent or bromide concentration, so that solvent loss with its disadvantages might eventually be eliminated. In addition, initial feasibility was shown for the replacement of the polymer matrix with inorganics, and for the electrical actuation of the films at high frequency without contact electrodes. (Author)

Descriptors :   (*PHOTOCHROMISM, *COMPLEX COMPOUNDS), (*COPPER COMPOUNDS, DISCOLORATION), BROMIDES, SOLUTIONS(MIXTURES), CHEMICAL EQUILIBRIUM, CONCENTRATION(CHEMISTRY), ORGANIC SOLVENTS, INORGANIC ACIDS, FILMS, EXCITATION, ELECTRIC DISCHARGES, SHUTTERS(OPTICS), FLASHBLINDNESS

Subject Categories : Inorganic Chemistry
      Radiation and Nuclear Chemistry
      Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE