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Issue 3, 2014
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Curved polymer nanodiscs by wetting nanopores of anodic aluminum oxide templates with polymer nanospheres

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Abstract

Although nanostructures with diverse morphologies have been fabricated, it is still a great challenge to prepare anisotropic two-dimensional (2-D) nanostructures, especially non-planar disc-like nanostructures. In this work, we develop a simple method to prepare curved polymer nanodiscs with regular sizes by wetting polymer nanospheres in the nanopores of anodic aluminum oxide (AAO) templates. Polystyrene (PS) nanospheres are first fabricated by using a non-solvent-assisted template wetting method. By annealing the PS nanospheres in the nanopores of AAO templates, curved PS nanodiscs can be produced. The length and morphology of the curved PS nanodiscs can be controlled by the wetting conditions such as the annealing temperatures and times. For some stacked nanospheres, the annealing process can result in the formation of helix-like nanostructures. To demonstrate the universality of this work, this approach is also applied to poly(methyl methacrylate) (PMMA), another common polymer, and similar results are obtained.

Graphical abstract: Curved polymer nanodiscs by wetting nanopores of anodic aluminum oxide templates with polymer nanospheres

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Publication details

The article was received on 20 Aug 2013, accepted on 12 Nov 2013 and first published on 13 Dec 2013


Article type: Paper
DOI: 10.1039/C3NR04431A
Citation: Nanoscale, 2014,6, 1340-1346
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    Curved polymer nanodiscs by wetting nanopores of anodic aluminum oxide templates with polymer nanospheres

    M. Chi, Y. Kao, T. Wei, C. Lee and J. Chen, Nanoscale, 2014, 6, 1340
    DOI: 10.1039/C3NR04431A

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