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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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Article information


Submitted
27 Jul 2012
Accepted
05 Sep 2012
First published
06 Sep 2012

J. Mater. Chem., 2012,22, 22044-22049
Article type
Paper

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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