Fluctuation Effects on the Brush Structure of Mixed Brush Nanoparticles in Solution.

摘要: A potentially attractive way to control nanoparticle assembly is graft one or more polymers on the nanoparticle, nanoparticle–nanoparticle interactions. When two immiscible are grafted they can microphase separate form domains at surface. Here, we computationally investigate phase behavior of such binary mixed brush nanoparticles in solution, across a large and experimentally relevant parameter space. Specifically, calculate mean-field diagram, assuming uniform grafting polymers, as function size relative length chains, density, enthalpic repulsion between solvent quality. We find variety phases including Janus with varying numbers striped domains. Using nonuniform, random distribution sites instead leads development defects i...