title: One-step preparation of PS/TiO2 nanocomposite particles via miniemulsion polymerization.
abstract: This paper presents a one-step method to fabricate PS/TiO(2) nanocomposite particles via miniemulsion polymerization technique. In this approach, styrene (St) and acetylacetone (Acac) chelated tetra-n-butyl titanate (TBT) were confined in the miniemulsion droplets with the aid of cationic surfactant cetyl trimethyl ammonium bromide (CTAB) and co-stabilizer hexadecane (HD). During the polymerization of St, TBT diffused towards the surface of the miniemulsion droplets owing to its hydrophilicity and yielded TiO(2) particles via a sol-gel process. With the electrostatic interaction between the positively charged CTAB and negatively charged Ti-OH, TiO(2) particles were coated onto the PS cores to form PS/TiO(2) nanocomposite particles.
authors.affiliation: Department of Materials Science and Advanced Coatings Research Center of China Educational Ministry, Advanced Materials Laboratory, Fudan University, Shanghai 200433, PR China.
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Wu
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jiaxi
authors.initials: J
authors.lastname: Xu
authors.forename: Min
authors.initials: M
authors.lastname: Chen
authors.forename: Limin
authors.initials: L
authors.lastname: Wu
mesh_terms: D000473:Alkanes / Q000737:chemistry; D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D009942:Organometallic Compounds / Q000737:chemistry*; D010316:Particle Size; D010422:Pentanones / Q000737:chemistry; D020058:Styrene / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
chemical_list: D000473:Alkanes; D002593:Cetrimonium Compounds; D009942:Organometallic Compounds; D010422:Pentanones; C009495:titanium dioxide; D020058:Styrene; C008790:acetylacetone; D014025:Titanium; C007932:n-hexadecane; D000077286:Cetrimonium