Thermal Stability of Organic Peroxide with Metals

In this study, we evaluated reactivity of organic peroxides with metals. The effect of useful metals for decomposition of organic peroxides was measured by Differential Scanning Calorimeter (DSC). Results of DSC measurement with several kinds of sample cells showed that some of organic peroxides have high reactivity with gold plated cell. Hydroperoxides were decomposed lower temperature by using gold plated cell than other cells. Only hydroperoxides showed such the effect of gold. For example, the onset temperature of t-Butyl hydroperoxide (TBHP) got from measurement using gold plated cell was about 50 K lower than stainless steel cell. In order to the effect of gold for hydroperoxides, the decomposition characteristics of Cumenhydroperoxide (CHP) with metal powder were studied by C80 calorimeter and the decomposed compounds were analyzed using GC and GC/MS. The result of thermal decomposition of CHP with gold powder shows that gold is catalysis of radical reaction.