Mesostructured Block Copolymer Nanoparticles: Versatile Templates for Hybrid Inorganic/Organic Nanostructures

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• 作者：Luke A. Connal ; Nathaniel A. Lynd ; Maxwell J. Robb ; Kimberly A. See ; Se Gyu Jang ; Jason M. Spruell ; Craig J. Hawker
• 刊名：Chemistry of Materials
• 出版年：2012
• 出版时间：November 13, 2012
• 年：2012
• 卷：24
• 期：21
• 页码：4036-4042
• 全文大小：436K
• 年卷期：v.24,no.21(November 13, 2012)
• ISSN：1520-5002

文摘

We present a versatile strategy to prepare a range of nanostructured poly(styrene)-block-poly(2-vinyl pyridine) copolymer particles with tunable interior morphology and controlled size by a simple solvent exchange procedure. A key feature of this strategy is the use of functional block copolymers incorporating reactive pyridyl moieties which allow the absorption of metal salts and other inorganic precursors to be directed. Upon reduction of the metal salts, well-defined hybrid metal nanoparticle arrays could be prepared, whereas the use of oxide precursors followed by calcination permits the synthesis of silica and titania particles. In both cases, ordered morphologies templated by the original block copolymer domains were obtained.

Keywords:

block copolymer; nanoparticle; self-assembly; templating; morphology