title: Facile fabrication of hollow silica and titania microspheres using plasma-treated polystyrene spheres as sacrificial templates.
abstract: By means of a plasma technique, the surfaces of monodisperse polystyrene (PS) colloids have been modified with hydroxyl groups. Using these surface-modified PS colloids as sacrificial templates, we have fabricated silica-coated PS colloids (PS@silica) and titania-coated PS colloids (PS@titania) composite microspheres as well as hollow and mesoporous silica and titania microspheres. This process not only demonstrated a facile, low-cost, environmentally benign way to fabricate hollow oxides structures but also offered a feasible alternative to the preparation of polymer/inorganic oxide composites by templating against the polymer substrate with hydrophobic surfaces.
authors.affiliation: Department of Polymer Science ad Engineering, Pusan National University, Pusan, Korea.
authors.forename: Haiqing
authors.initials: H
authors.lastname: Li
authors.forename: Chang-Sik
authors.initials: CS
authors.lastname: Ha
authors.forename: Il
authors.initials: I
authors.lastname: Kim