Reactive blending of polysulfone with polyamide: a difference in interfacial behavior between in situ formed block and graft copolymers

Effect of oscillatory shear on the interfacial morphology of a reactive bilayer polymer system

“…Most studies on reactive blending have focused on the final morphology of polymer blends, which determines mechanical properties [7][8][9][10][11]. Among the many factors that influence the final morphology in a reactive polymer blend system, the amount of in-situ formed diblock (or graft) copolymers (or reaction kinetics) and the applied shearing force become very important.…”

Brittle‐Ductile Transition in Reactive PBT/SAN Blends

“…The copolymer tends to stay at the interface, and thus acts as an effective compatibilizer between two immiscible polymers. [3][4][5][6] In the case of blend containing PBT, polymers functionalized with glycidyl methacrylate (GMA) have been often used as reactive compatibilizers. [7][8][9][10][11] Moreover, in some case, dual compatibilizers were used.…”

The Effect of Chain Architecture of In Situ Formed Copolymers on Interfacial Morphology of Reactive Polymer Blends

“…Inoue et al [14][15][16] showed that the chain architecture of in situ formed copolymer affected the final morphology of polyamide/polysulfone (PA6/PSU) blend. Micelle formation, in particular, under the shear for graft copolymers formed from phthalic anhydride mid-functionalized PSU was different from that for diblock copolymers formed from end-functionalized PSU.…”

“…Micelle formation, in particular, under the shear for graft copolymers formed from phthalic anhydride mid-functionalized PSU was different from that for diblock copolymers formed from end-functionalized PSU. However, due to the high polydispersities of these two reactive compatibilizers employed in ref., [14] the chain architectures of diblock and graft copolymers were difficult to determine.…”