Dissipative particle dynamics study on the interfaces in incompatible A/B homopolymer blends and with their block copolymers.

摘要: Dissipative particle dynamics, a simulation technique appropriate at mesoscopic scales, has been applied to investigate the interfaces in immiscible binary A∕B homopolymer blends and ternary systems with their block copolymers. For blends, interfacial tension increases interface thickness decreases increasing Flory–Huggins interaction parameter χ while chain length is fixed. However, when one of fixed, another will induce only small increase on slight decrease thickness. adding A‐b‐B copolymer reduce tension. When mole number longer chains have higher efficiency reducing than shorter ones. But for copolymers fixed volume fraction, be more efficient ones ...