Characteristics of binary and ternary blends of poly (p‐phenylene sulfide) with poly(bis phenol A) sulfone and polyetherimide

An experimental study of the phase morphology and mechanical properties of binary blends of poly(p‐phenylene sulfide) (PPS) with both polyetherimide (PEI) and poly(bis phenol A) sulfone (PSF) is described. We also study the ternary system PPS‐PEI‐PSF. Differential scanning calirometry indicated the blends are immiscible; these findings were confirmed by scanning electron microscopy. Both PEI and PSF were found capable of improving the impact strength and elongation‐to‐break characteristics of PPS in binary blends and ternary systems.