Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/5151
Título: Hierarchical wrinkling on elastometric Janus spheres
Autor: Trindade, Ana C.
Canejo, João P.
Patrício, Pedro Manuel Alves
Brogueira, Pedro
Teixeira, Paulo Ivo Cortez
Godinho, Maria Helena
Palavras-chave: Soft Matter
Data: 7-Nov-2012
Editora: Royal Soc Chemistry
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
Resumo: 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.
Peer review: yes
URI: http://hdl.handle.net/10400.21/5151
DOI: 10.1039/c2jm35018a
ISSN: 0959-9428
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