he effect of addition of diblock copolymers, triblock copolymers and random copolymers on the fracture toughness, ;Long symmetric random copolymers (;In the crazing regime, the ;We show that most of the triblock copolymers form a "staple" structure at the interface with the PS block forming a loop on the PS side of the interface and the PVP ends anchoring the "staple" in the PVP side. The transition from chain scission to crazing for triblock copolymers occurs at a... |