title: Selective surface reactions for Janus ORMOSIL particles with multiple functional groups using an ordered monolayer film at liquid-liquid interface.
abstract: Monodispersed, submicron-sized Janus ORMOSIL particles with multiple functional groups were prepared by the selective surface reaction of a monolayer film formed at a hexane-water interface. A well-ordered monolayer film was obtained by self-assembly of ORMOSIL particles with multiple functional groups at hexane-water interface. The photopolymerization of an ordered monolayer containing ORMOSIL particles yields a rigid film strong enough to maintain its integrity for transfer and further chemical reaction. The chemical reaction of this ordered film with organic and inorganic functional groups produced Janus ORMOSIL particles with multiple functional groups. The morphologies, structures, and chemical compositions of monolayer films and Janus ORMOSIL particles were characterized by FT-IR, solid state NMR, X-ray diffraction (XRD), optical microscopy (OM), electron microscopies (SEM and TEM), and confocal laser scanning microscopy.
authors: Department of Chemical Engineering, Hanyang University, Seong-dong gu, Seoul 133-791, Republic of Korea.
authors: Chan Yoon
authors: CY
authors: Jung
authors: Jung Soo
authors: JS
authors: Kim
authors: Hae Sung
authors: HS
authors: Kim
authors: Jung Min
authors: JM
authors: Ha
authors: Sun Taek
authors: ST
authors: Kim
authors: Hyung Jun
authors: HJ
authors: Lim
authors: Sang Man
authors: SM
authors: Koo
mesh_terms: D006586:Hexanes / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D008854:Microscopy, Electron; D046529:Microscopy, Electron, Transmission; D010316:Particle Size; D058105:Polymerization; D012833:Siloxanes / Q000737:chemistry*; D013499:Surface Properties; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D006586:Hexanes; D012833:Siloxanes; C510784:ormosil; D014867:Water; C026385:n-hexane