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Orientador(es)
Resumo(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.
Descrição
Palavras-chave
Soft Matter Particles Polymerization Patterns Emulsion Surface Microspheres Instability Nanoprobes Interfaces
Contexto Educativo
Citação
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
Editora
Royal Soc Chemistry