Reactions of oxygenated radicals in the gas phase. Part 5. Reactions of methylperoxyl radicals and alkenes

Abstract

The reactions of methylperoxyl radicals with alkenes have been studied at 410 K. The peroxyl radicals were generated by the oxidation of methyl radicals formed during the thermal oxidation of di-t-butyl peroxide. Rate constants for reaction (18) have been determined: k₍₁₈₎(ethylene)= 1.2 ± 0.7 and k₍₁₈₎(2-methylpropene)= 9.8 ± 1.6 dm³ [graphic omitted] mol^–1 S^–1 at 410 K. An estimate for an activation energy of the abstraction reaction between t-butoxyl radicals and 2-methylpropene is given.