Abstract
Thermolysis kinetics of 1,1-bis(t-butyldioxy)cycloalkanes (cycloalkane perketals) with various alkyl substituents on the cycloalkane rings were investigated in cumene. Substitution at the 2-position on the ring greatly accelerated the peroxide decomposition; the accelerating effect of substituents is in the order H <n-Pr ≍ Me < iso-Pr. The bulk polymerization of styrene initiated by cycloalkane perketals proceeded via the two-step O–O decomposition and gave higher molecular weight polymers than polymerization by monofunctional initiators. It is shown that cycloalkane perketals act as unsymmetrical difunctional initiators.
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Suyama, S., Ishigaki, H., Nakamura, T. et al. Thermolysis Kinetics of 1,1-Bis(t-butyldioxy)cycloalkanes and Their Utility for Styrene Polymerization. Polym J 26, 273–281 (1994). https://doi.org/10.1295/polymj.26.273
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DOI: https://doi.org/10.1295/polymj.26.273