High temperature pyrolysis of 1,5-cyclooctadiene and 4-vinylcyclohexene in shock waves

Article abstract of DOI:10.1002/kin.550251208

1,5-cyclooctadiene or 4-vinylcyclohexene mixture diluted with argon was heated to temperatures in the range 880-1230 K behind reflected shock waves. Profiles of IR-laser absorption were measured at 3.39 μm. From these profiles, rate constants k₁ and k₂ for the decyclization reactions 1,5-cyclooctadiene → biradical were evaluated as k₁=5.2×10¹⁴ exp(-48.3 kcal/ RT) S^-1 and k₂=3.5×10¹⁴ exp(-55.3 kcal/ RT) S^-1 respectively.