초록 |
Shape-anisotropic particles have drawn significant attention as building blocks for colloidal superstructures. Recently, rather simpler method for generating nonspherical polymeric particles was developed using self-assembly of block copolymers (BCPs) confined in emulsion droplets, induced by evaporation of solvent from the interior phase of the emulsion. Due to the soft-confinement of BCPs within the emulsion droplet, anisotropic particle is generated to minimize the free energy of BCPs. Here, we introduce the shape-controlled BCP particles from emulsions depending on size of the emulsion, interfacial property, and evaporation rate of the solvent. Theory and simulation explain the self-assembly physics of BCPs under soft-confinement from the emulsion droplet. |