1P-574 : Fabrication and assembly of monodisperse janus microparticles with controlled phase and chemical anisotropies

We described a novel technique for fabricating uniform Janus particles with anisotropic phase and different surface properties. These microsized Janus particles were synthesized by the seeded swelling and consecutive photopolymerization, in which complete compartmentalization of the particles into two distinct phases occurred. We generated Janus microparticles with one side composed of polystyrene and trimethoxy(4-vinylphenyl)silane for coupling agent and the other side composed of tetradecyl acrylate. Moreover, we patched nanoparticles, such as magnetic nanoparticles and silica nanoparticles, onto one of the compartmentalized phases of the Janus particles. Finally this study demonstrated that asymmetrically hybridized Janus particles play an important role in the designated colloidal 2D array.