Journal article
Template-directed synthesis of silica nanowires and nanotubes from cylindrical core-shell polymer brushes
M Müllner, T Lunkenbein, J Breu, F Caruso, AHE Müller
Chemistry of Materials | Published : 2012
DOI: 10.1021/cm300312g
Abstract
We report the synthesis and characterization of core-degradable core-shell cylindrical polymer brushes (CPBs) that can be used as a molecular soft template for the fabrication of uniform one-dimensional silica nanostructures with tunable dimensions and morphologies. The silica nanostructures were templated from CPBs consisting of a densely grafted poly(ε-caprolactone) core and a poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) shell. According to the degree of polymerization of both the backbone and the side chains, silica nanostructures with varying lengths and diameters were obtained. The weak polyelectrolyte shell acted as an ideal nanoreactor for the deposition of silica. Calcination ..
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Awarded by Deutsche Forschungsgemeinschaft (DFG) within the Collaborative Research Center
Funding Acknowledgements
This work was supported by the Deutsche Forschungsgemeinschaft (DFG) within the Collaborative Research Center (SFB) 840 and the Australian Research Council. The authors thank Marietta Bohm, Melanie Fortsch for performing SEC and cryo-TEM, respectively. Further, we thank Lena Geiling and Martin Schieder for performing N<INF>2</INF>-physisorption measurements and calcinations. M. M. acknowledges BayEFG for a scholarship and BayNAT for a fellowship. T. L. thanks the international graduate school of the ENB "Structures, Reactivity and Properties of Metal Oxides" for a fellowship.