title: Cobaltocenium-containing block copolymers: ring-opening metathesis polymerization, self-assembly and precursors for template synthesis of inorganic nanoparticles.
abstract: Side-chain cobaltocenium-containing block copolymers are prepared by ring-opening metathesis polymerization (ROMP). These block copolymers include one cobaltocenium-containing block, with the second block being either a nonmetal-containing segment or a cobaltocenium-containing segment with different counterions. These block copolymers are self-assembled into spherical core/shell micelles in solutions. A template strategy is used to prepare cobalt (II or III)-containing nanoparticles by treating the self-assembled micelles via UV/ozonolysis and pyrolysis. Characterization by X-ray photon spectroscopy and X-ray diffraction indicates that these nanoparticles consist of different oxidants of cobalt, depending on the chemical compositions of block copolymers.
authors.affiliation: Department of Chemistry & Biochemistry and Nanocenter, University of South Carolina, Columbia, South Carolina 29208, USA.
authors.forename: Lixia
authors.initials: L
authors.lastname: Ren
authors.forename: Jiuyang
authors.initials: J
authors.lastname: Zhang
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Hardy
authors.forename: Shuguo
authors.initials: S
authors.lastname: Ma
authors.forename: Chuanbing
authors.initials: C
authors.lastname: Tang
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry*; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D056831:Coordination Complexes; D011108:Polymers; D003035:Cobalt