Controllable Synthesis of Submicrometer Core–Shell Modifier and Its Effect on Toughening Polypheylene Ether/Polystyrene Blends

Core–shell polybutadiene-graft-polystyrene (PB-g-PS) graft copolymers with different ratios of PB to PS are synthesized by emulsion polymerization. Further, the PB-g-PS blended polypheylene ether (PPE) and prepare PPE/PS/PB-g-PS blends. The effects copolymer structure matrix composition on morphological, mechanical properties, deformation mechanism blends studied. results show that submicrometer-sized has an excellent toughening efficiency, both introduced into PPE resin produce a ternary blend which is combined high toughness processing properties. optimum effect PPE/PS observed at core–shell weight ratio 70/30 in copolymer, impact strength increased from 101 550 J m−1. In addition, dispersion pattern rubber particles gradually changes uniform aggregation as increases. On other hand, increase content, improved, changed cracking combination crazing shear yielding, can lead absorb more energy achieve better toughness.