Synthesis of Polymer Microspheres via Self-Assembly of Monodisperse Precursor Particles

摘要: Spherical monodisperse vinyl copolymer particles have been prepared using three different techniques:  surfactant-free emulsion polymerization (SFEP), precipitation (PP), and dispersion (DP). SFEP yielded methacrylic acid (MAA)−styrene (St) (MAA/St = 25/75) with a diameter of ∼200 nm. PP MAA−divinylbenzene (DVB) ∼5 μm (MAA/DVB ∼1 60/40), also glycidyl methacrylate (GMA)−DVB (GMA/DVB 60/40) ∼4.5 μm. DP was used to prepare GMA−St (60/40) ∼1.5 Attempts self-assemble samples each primary particle into spherical aggregates were made high solids (33%) aqueous dispersions in inverse suspension toluene. Self-assembly induced by Dean−Stark removal the water some No success achieved two largest sized particles. However, both nm 1−1....