title: A self-templated approach to TiO2 microcapsules.
abstract: A self-templated approach has been developed for the synthesis of TiO2 microcapsules with tunable size and wall thickness by heating sol-gel derived TiO2 microspheres with poly(acrylic acid) (PAA) in a diethylene glycol (DEG) solution. PAA plays a crucial role in the formation of microcapsules by crosslinking the surface TiO2 nanoparticles and preventing them from dissolution by DEG. Hollow microcapsules form when DEG molecules penetrate the outer layer and remove the core materials by forming soluble titanium glycolate.
authors.affiliation: Department of Chemistry, University of California, Riverside, California 92521, USA.
authors.forename: Yongxing
authors.initials: Y
authors.lastname: Hu
authors.forename: Jianping
authors.initials: J
authors.lastname: Ge
authors.forename: Yugang
authors.initials: Y
authors.lastname: Sun
authors.forename: Tierui
authors.initials: T
authors.lastname: Zhang
authors.forename: Yadong
authors.initials: Y
authors.lastname: Yin
mesh_terms: D002214:Capsules / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: D002214:Capsules; D046911:Macromolecular Substances; C009495:titanium dioxide; D014025:Titanium