Pollen-Mimetic Multiphase Polymer Microparticles

Abstract

Polymer microparticles that have pollen-like surface structures can be prepared by the evaporation of an oilin-water emulsion. Here, polystyrene, polysulfone and PMMA was dissolved in ethyl acetate (the oil phase) and mixtures of those were emulgated in aqueous solutions of various emilsifiers. The polymer particles show surface structures, and we found that polysulfone makes hemispherical protrusions in various mixtures with polystyrene or PMMA.