Department of Chemistry & Biochemistry and Nanocenter, University of South Carolina, Columbia, South Carolina 29208, USA.
Macromol Rapid Commun. 2012 Apr 13;33(6-7):510-6. doi: 10.1002/marc.201100732. Epub 2012 Jan 18.
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.
侧链含钴卟啉嵌段共聚物通过开环复分解聚合（ROMP）制备。这些嵌段共聚物包含一个含钴卟啉嵌段，第二个嵌段为非金属嵌段或含不同抗衡离子的钴卟啉嵌段。这些嵌段共聚物在溶液中自组装成球形核/壳型胶束。通过对自组装胶束进行 UV/臭氧氧化和热解处理，采用模板策略制备含钴（II 或 III）纳米粒子。X 射线光电子能谱和 X 射线衍射的表征表明，这些纳米粒子由不同的钴氧化剂组成，这取决于嵌段共聚物的化学组成。
