Effect of random copolymers of 2,2-di(4-hydroxy phenyl) and 4,4′-dihydroxyldiphenylsulfone on the morphology and mechanical properties of polyethersulfone and polycarbonate blends

In the case of the ternary blend system of polycarbonate (PC), polyethersulfone (PES) and a random copolymer of 2,2-di(4-hydroxy phenyl) and 4,4'-dihydroxyldiphenylsulfone, it was found that the interfacial adhesion was enhanced, the size of the dispersed phase was reduced, and PES and PC formed an interlocking structure with the copolymer, which suggest the addition of the compatibilizer may improve the miscibility between PES and PC, and result in the improvement of the mechanical properties of the blends. The compatibility behavior of PES with (PC) was examined using differential scanning calorimeter (DSC), scanning electron microscope (SEM), and dynamic mechanical analysis (DMA).