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Synthesis of Ordered Macroporous Polymers from Colloidal Silica Templates

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Ordered macroporous polymers have been prepared by replication of colloidal crystals made from silica spheres 298 nm in diameter. The colloidal crystals were prepared on a clean indium tin oxide (ITO) glass substrate by sedimentation of a solution of a silica colloidal dispersed solution. The air between the silica spheres was filled by the monomer of poly(methyl methacrylate) (PMMA) that can be subsequently polymerized. After infiltration, the silica spheres were removed by means of etching with hydrofluoric acid (HF) aqueous solution and left a polycrystalline network of interconnected pores. These macroporous ordered structures represent a promising approach for bandgap engineering and can be used as the foundation of various potential applications.
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Keywords: MACROPOROUS STRUCTURES; PHOTONIC CRYSTALS; PMMA; POLYMERIZATION

Document Type: Research Article

Publication date: 2010-03-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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