Compatibility and mechanical properties of polyamide-6/ polystyrene/diblock poly(styrene-b-ethylene oxide) copolymer blends

Dynamic mechanical studies indicate that poly(styrene-b-ethylene oxide) (SbEO) diblock copolymer can be utilized to achieve compatibility in blends of incompatible polymer pairs, polyamide-6/polystyrene (PA6/PS). It has been found that both the compatibility and the mechanical properties of the blends PA6/PS (80/20 wt/wt) can be improved by the addition of small amounts (2 phr) of SbEO copolymers.