Author(s)

J. Theloke, H.G. Libuda and F. Zabel

Abstract

The Atmospheric Fate of Isobutoxy Radicals A contribution to subproject CMD J. Theloke, HG Libuda and F Zabel InstitutfurPhysikalische Chemie, Universitat Stuttgart, Pfaffenwaldring 55, D - 70569 Stuttgart, Germany Introduction Under atmospheric conditions, long-chain alkoxy radicals can generally react via 3 reaction pathways: (1) Reaction with O: (k\ , => aldehyde/ketone + HO:), (2) thermal decomposition (fe, => aldehyde/ketone + alkyl/H), (3) isomerisation (tg, => hydroxyaldehyde/hydroxyketone). The relative and, in particular, the absolute values of *i, 62, and k$ are not well established. However, these values are necessary in order to evaluate the ozone formation potential of long-chain hydrocarbons. In this work, the reactive behaviour of isobutoxy radicals has been studied in a temperature controlled 12 1 reaction chamber from stainless steel (Fig. 1

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