Rate constants in the photopolymerization of H2O2–isoprene systems

The polymerization reactions of isoprene with the use of H₂O₂ as the photoinitiator have been studied in acetone solutions. The lifetime of chain radicals, τ_s, was evaluated to be 0.29 by the rotating sector technique. The rate constants k_p and k_t were found to be 19.1 and 3.40 × 10⁷ L/mol- s, respectively.