Atmospheric chemical mechanims of the photooxidation of vinyl and allyl acetate initiated by Cl reactions

MARÍA B. BLANCO, IUSTINIAN BEJAN, IAN BARNES, PETER WIESEN AND MARIANO TERUEL

Gephysical Research Abstracts

European Gephysical Union

Lugar: Viena; Año: 2011 vol. 13 p. 1 - 1

1029-7006

cetates have been widely released for decades into the atmosphere during their use in industrial activities. Moreover, they are also emitted from natural sources (vegetation and biomass combustion).(1) An additional potential source of these compounds is emission from automobiles; a number of acetates, including vinyl acetate (VA) and allyl acetate (AA), have been detected as products in the combustion of rape methyl esters used as fuel alternatives or additives. (2) The gas-phase removal processes of unsaturated esters include OH, NO3, Cl reactions. In recent years the oxidations of volatile organic compounds (VOCs) by the highly reactive chlorine atom has gained much attention mainly in the marine troposphere where significant chlorine atom concentration may be present. (3) In this work we report a product study for the reactions of Cl atoms with vinyl acetate (CH3C(O)OCH=CH2) and allyl acetate (CH3C(O)OCH2CH=CH2). The experiments were conducted using a 1080 liters quartz-