INVESTIGADORES
BLANCO Maria Belen
congresos y reuniones científicas
Título:
Methy methacrylate in the atmosphere: OH- and Cl-initiated oxidation in the gas phase
Autor/es:
M. B. BLANCO, I. BEJAN, I. BARNES, P. WIESEN AND M. TERUEL
Lugar:
Alushta, Ukraine
Reunión:
Simposio; Simulation and Assessment of Chemical processes in a Multiphase Environment-; 2007
Resumen:
Rate coefficients for the
reactions of OH radicals and Cl atoms with methyl methacrylate have been
determined at 298 ± 2 K and atmospheric pressure (~760 ± 10
Torr) in a 405 and 1080 L
different photoreactors coupled with in
situ FTIR spectroscopy. The following values of kOH
= (0.43 ± 0.05) × 10-10 and kC l= (2.86
± 1.37) × 10-10 in units of cm3 molecule-1
s-1 were obtained. Methyl pyruvate and formadehyde were determined
as reaction products in the reaction of methyl methacrylate with OH radicals in
accordance with the OH radical addition to the less substituted carbon of the
double bond. Atmospheric implications of the reactions were assessed
calculating the lifetime of methyl methacrylate in the atmosphere.