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Issue 41, 2012
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Hierarchical wrinkling on elastomeric Janus spheres

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Abstract

Hierarchical wrinkling on elastomeric Janus spheres is permanently imprinted by swelling, for different lengths of time, followed by drying the particles in an appropriate solvent. First-order buckling with a spatial periodicity (λ11) of the order of a few microns and hierarchical structures comprising of 2nd order buckling with a spatial periodicity (λ12) of the order of hundreds of nanometers have been obtained. The 2nd order buckling features result from a Grinfeld surface instability due to the diffusion of the solvent and the presence of sol molecules.

Graphical abstract: Hierarchical wrinkling on elastomeric Janus spheres

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Publication details

The article was received on 27 Jul 2012, accepted on 05 Sep 2012 and first published on 06 Sep 2012


Article type: Paper
DOI: 10.1039/C2JM35018A
Citation: J. Mater. Chem., 2012,22, 22044-22049

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    Hierarchical wrinkling on elastomeric Janus spheres

    A. C. Trindade, J. P. Canejo, P. Patrício, P. Brogueira, P. I. Teixeira and M. H. Godinho, J. Mater. Chem., 2012, 22, 22044
    DOI: 10.1039/C2JM35018A

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