TY - JOUR T1 - Thermosets Synthesized by Metathesis: Multiscale Lifetime Approach A1 - Richaud,Emmanuel A1 - Huang,Jing A1 - Le Gac,Pierre Yves AD - CNRS, Cnam, Arts & Metiers, Lab PIMM, 151 Blvd Hop, F-75013 Paris, France. AD - IFREMER, Serv Mat & Struct, Ctr Brest, BP70, F-29280 Plouzane, France. UR - https://archimer.ifremer.fr/doc/00644/75621/ DO - 10.1063/1.5140307 N2 - This paper addresses the lifetime prediction of polydicyclopentadiene submitted to thermal oxidation, using a multiscale approach. The chemical changes monitored by FTIR revealed the depletion in double bonds and the appearance of carbonyls. Such molecular changes result in the drop of mechanical properties. A kinetic model was implemented to predict the degradation rate depending on external conditions (temperature, oxygen concentration). This model can be completed to take into account the effect of antioxidants (delaying the thermal degradation) and the oxygen diffusion effects (heterogenous degradation) so as to get closer of real cases. Y1 - 2019 PB - Amer Inst Physics JF - AIP Conference Proceedings SN - 0094-243X VL - 2196 ID - 75621 ER -