ESR. investigations on the thermal degradation of polyepichlorohydrin

Abstract Electron spin resonance investigations on the thermal degradation in air of stabilized and crude polyepichlorohydrins are reported. The temperature dependence of resonance line parameters, in the temperature range 250–500 °C, has been investigated. The activation energy has been estimated for the total free-radical generation processes. In situ experiments on crude and stabilized polyepichlorohydrins are reported. For the sample stabilized with amines the appearance of nitroxide-like free radicals has been noticed.