Actual viscoelastic characterization of the interphase in a compatibilizedthermoset/thermoplastic blend through reverse mechanical modeling

The viscoelastic properties of an in-situ compatibilized thermoset/thermopl astic blend were investigated. A reverse mechanical modeling was used to pr edict(l) the actual viscoelastic characteristics of the in-situ synthesized interphase in the blend and (2) the evolution of these actual characterist ics as a function of the thermal history of the polymer blend. Thus, predic ted data revealed a significant increase of the ability of the molecular mo bility in the interphase area after a refreshing thermal treatment be appli ed to the blend. Lastly, the frequency dependence of the predicted relaxati on of the interphase component was also studied.