From wrinkly elastomers to Janus particles to Janus fibres

Trindade, A. C.; Canejo, J. P.; Patricio, Pedro; Brogueira, P.; Teixeira, Paulo; Godinho, Maria Helena

http://hdl.handle.net/10400.21/6691

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Authors

Godinho, Maria Helena

Abstract(s)

Aim is to fabricate Janus objects possessing two distinct sides, through control and manipulation of uneable sub-micron scale long-lived textures in urethane/urea elastomer films, spheres and fibres. Textures are obtained by UV-irradiation of the elastomers followed by mechanical deformation or swelling in a solvent. Standard chemistry, no complex deposition techniques required. Resulting textures investigated using AFM, SEM, SALS and POM. Interpreted by assuming that each film, sphere or fibre consists of a thin, stiff surface layer (“skin”) lying atop a thicker, softer substrate (“bulk”).

Keywords

Wrinkly elastomers

URI

http://hdl.handle.net/10400.21/6691

Citation

TRINDADE, A. C.; [et al] - From wrinkly elastomers to Janus particles to Janus fibres. In: British Society of Rheology Midwinter Meeting 2016: Polymer Dynamics & Rheology and Symposium on “The Science of Alexei Likhtman”, Berkshire (United Kingdom), 12-14 december 2016.