Morphology and coarsening behavior in Polycarbonate/Nylon6-co-12 blends with and without compatibilizer

The morphology and the coarsening behavior with and without compatibilizer were investigated by using scanning electron microscope. As a new compatibi lizer, styrene-acrylonitrile-maleic anhydride terpolymer (S-AN-MAH) was use d. For Polycarbonate (PC)/Nylon6-co-12(50/50) blend, modulated structure wa s observed. And coarsening behavior was similar to that of spinodal decompo sition. However, for PC/Nylon6-co-12(50/50) blend with S-AN-MAH, sea-island structure was developed and the size of domain did not increase although t he sample was annealed for 90 min, at above T-m. It was confirmed that S-AN -MAH retards coarsening of morphology. (C) 1999 Published by Elsevier Scien ce Ltd. All rights reserved.