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Authors
Advisor(s)
Abstract(s)
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 (lambda(11)) of the order of a few microns and hierarchical structures comprising of 2nd order buckling with a spatial periodicity (lambda(12)) 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.
Description
Keywords
Soft Matter Particles Polymerization Patterns Emulsion Surface Microspheres Instability Nanoprobes Interfaces
Citation
TRINDADE, Ana C.; [et al] – Hierarchical wrinkling on elastometric Janus spheres. Journal of Materials Chemistry. ISSN: 0959-9428. Vol. 22, nr. 41 (2012), pp. 22044-22049
Publisher
Royal Soc Chemistry