Browsing by Author "OLIVA, R"

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    THERMAL STUDIES OF METAL-FILMS PREPARED WITH OXYGENATED SOLVENTS .12.
    (1994) CARDENAS, G; OLIVA, R; TAGLE, LH
    Copper, silver and gold colloids have been prepared by Chemical Liquid Deposition (CLD) with dimethoxymethane, 2-methoxyethyl ether and ethylenglycol dimethyl ether. The metals are evaporated to yield atoms which are solvated at low temperatures and during the warm up process colloidal sols with metal clusters are obtained.
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    THERMAL STUDIES OF ORGANOZINC FILMS .11.
    (1994) CARDENAS, G; OLIVA, R; TAGLE, LH
    The thermal stability of organozinc films was studied by thermogravimetric analysis (TGA) between 25 and 550-degrees-C min-1. The decomposition temperatures were obtained from the maximum of the first derivatives of the TG curve. The kinetic parameters of the thermal decomposition were determined by the Arrhenius equation. All the films degraded in one step with a very small weight loss. Films prepared with toluene and THF exhibit higher weight losses, 23.77% and 12.48%, respectively, and zinc-2-propanol film is the most stable (1.11% weight loss).