Abstract
Keeping the same thermodynamics of the blend, the kinetic effect on the pase separation mechanism of polyetherimide modified epoxy resin systems was studied. With the changes of cure rates phase separation in the reacted blends takes place. The process of phase separation is traced by time-resolved light scattering (TRLSand the final morphology is observed by scanning electron microscopy (SEM). The early stage of phase separation is analyzed using Cahn's linearized theory, while the scaling postulate is tested in the late stage. The effect of the competition between thermodynamics and kinetics on phase separation mechanism is discussed.
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