Thin unstabilized PDCPD film were thermally oxidized in ovens at several temperatures ranging from 50 °C to 120 °C. Hydroperoxide concentration was monitored by DSC. It was observed that hydroperoxides concentration reaches a plateau with short induction times, for example around 8 h at 50 °C. This plateau occurs at very high concentration, around about 1 mol l⁻¹ at 50 °C. In order to study both the chemical mechanisms and the kinetics of hydroperoxides decomposition, oxidized samples were thermally aged in an inert atmosphere to destroy hydroperoxides. For initially high concentrations corresponding to the “plateau”, it was shown that hydroperoxides decompose following a bimolecular process, the rate constant of which being calculated from the hydroperoxide depletion curves. The comparison of samples containing different polymerization catalyst amounts suggested the co-existence of an unimolecular process. This process mainly occurs at low hydroperoxides concentrations and slightly influences the overall oxidation process.

不稳定的PDCPD薄膜在烤箱中于50°C至120°C的多个温度下热氧化。通过DSC监测氢过氧化物的浓度。观察到氢过氧化物的浓度以短诱导时间达到平台，例如在50℃下约8小时。该平稳期以非常高的浓度发生，大约为1 mol l ^-1在50°C下。为了研究氢过氧化物分解的化学机理和动力学，将氧化后的样品在惰性气氛中进行热老化以破坏氢过氧化物。对于最初对应于“高原”的高浓度，已表明氢过氧化物在双分子过程后分解，其速率常数由氢过氧化物消耗曲线计算。含有不同聚合催化剂量的样品的比较表明，单分子过程并存。此过程主要发生在低氢过氧化物浓度下，并且对整个氧化过程有轻微影响。