title: Preparation and characterization of acrylated-SiO2@TiO2 hollow hybrid nanospheres.
abstract: Novel inorganic-organic hybrid hollow nanospheres, acrylated SiO2 and SiO2@TiO2, were synthesized via a sol-gel polymerization, using crown-appended sugar gelator 1 as an organic template for the unique nanospherical structures in demand for a fast expanding area in nanomaterial research. In this work, hollow SiO2 nanospheres were obtained by a simple sol-gel method followed by calcination and rather rough TiO2 nanolayers were coated onto the highly dispersed surface of SiO2 nanospheres and further copolymerization of MPA on the surface of SiO2 and SiO2@TiO2 nanosphseres was successfully conducted. The morphological properties of those hollow nanospheres were characterized by TEM, SEM and powder-XRD. Furthermore, the physical and chemical properties of the synthesized nanocomposites were characterized by the analysis of EDX, FT-IR, TGA and ESCA.
authors.affiliation: Department of Polymer Science and Engineering, Pusan National University, Pusan 609-735, Korea.
authors.forename: Chang Geun
authors.initials: CG
authors.lastname: Lee
authors.forename: Ahreum
authors.initials: A
authors.lastname: Ahn
authors.forename: Seung Jun
authors.initials: SJ
authors.lastname: Lee
authors.forename: Jin-Kook
authors.initials: JK
authors.lastname: Lee
authors.forename: Myong Yong
authors.initials: MY
authors.lastname: Choi
authors.forename: Jong Hwa
authors.initials: JH
authors.lastname: Jung
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; D046911:Macromolecular Substances; C009495:titanium dioxide; D012822:Silicon Dioxide; D014025:Titanium