CIFICEN   24414
CENTRO DE INVESTIGACIONES EN FISICA E INGENIERIA DEL CENTRO DE LA PROVINCIA DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
Mono, Di and Tri functional Cyclic Organic Peroxides: The effect of substituents and ring size on their thermolysis in 1,4-dioxan
Autor/es:
KARINA NESPRIAS; GLADYS NORA EYLER; ADRIANA CAƑIZO
Revista:
AUSTRALIAN JOURNAL OF CHEMISTRY
Editorial:
CSIRO PUBLISHING
Referencias:
Lugar: Collingwood; Año: 2013 vol. 66 p. 1080 - 1080
ISSN:
0004-9425
Resumen:
The thermal decomposition reaction of cyclic organic peroxides was studied in 1,4-dioxan at initial concentrations between,10 4 and 10 2 mol L 1 and at a temperature interval between 100 and 1708C, according to the thermal stability of each compound. The kinetic behaviour observed in all systems studied follows a pseudo first order kinetic law up to at least ,86% of peroxide conversion. An important substituent effect is operative on the rate constant values and consequently on the activation parameters of the thermal decomposition reaction. The application of different treatments (compensation affect or a statistical treatment) on the kinetic data shows the existence of two sets of cyclic peroxides with comparable kinetic behaviour. Different peroxide?solvent interaction mechanisms can be considered within each series.
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