Browsing by Author "MUNOZ, C"

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    THERMAL STUDIES OF METAL POLY(VINYL ACETATES) .9.
    (1995) CARDENAS, G; MUNOZ, C; TAGLE, LH
    Metal poly(vinyl acetates) polymers were obtained by radical polymerization with azodiisobutyronitrile. The thermal stabilities of the metal polymers (M-PVAC) have been studied by thermogravimetry (TG) between 25 and 550-degrees-C under nitrogen flow. The decomposition temperature was obtained from the maximum of the first derivative from TG curve. The kinetic parameters of the thermal decomposition were determined by the Arrhenius equation. All these polymers degrade mainly in a single step with a very small second step, probably via a complex reaction. The kinetic data thus obtained show that the thermostabilities decrease in the order: Sb-PVA(c) approximately Ge-PVA(c) > Bi-PVA(c) approximately Cd-PCA(c) > Ag-PVA(c) approximately PVA(c) > Zn-PVA(c) > Au-PVA(c) > In-PVA(c) > Sn-PVA(c) > Ga-PVA(c) > Pd-PVA(c).