The effect of Janus nanospheres on the phase separation of immiscible polymer blends via dissipative particle dynamics simulations

摘要: Using dissipative particle dynamics simulations, we have studied the effect of Janus nanospheres on phase separation polymer blends. We find that significantly impede domain growth and at a later stage average size approaches saturation exponent n decays to near-zero. Additionally, compared with homogeneous nanospheres, ternary systems containing is slower domains smaller stages process. This mainly arises from inherent equatorial adsorption low desorption probability interfaces, which can greatly reduce interfacial tension hence driving force towards macrophase separation. In particular, such difference in retardation becomes more pronounced for small sized preferential particle-matrix interaction. Furthermore, later-stage process there exists dynamical self-similarity undergo microphase follows crossover scaling form. Similarly, are closer extracted 1 than counterpart nanospheres. Therefore, be used as effective emulsifying or stabilizing agent immiscible