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Tunning the Elastic Properties of Wrinkled Janus Particles
Published online by Cambridge University Press: 17 December 2012
Abstract
The main objective of this work was to control and manipulate tuneable equilibrium structures in elastomeric spherical particles. The cross-linked urethane/urea polymeric spheres with two soft segments, polypropylene oxide and polybutadiene, were prepared by reacting a poly(propyleneoxide)-based triisocyanate-terminated prepolymer (PU) with poly(butadienediol) (PBDO), with different weight ratio. Wrinkling on elastomeric Janus spheres is induced by UV irradiation (λ=254 nm) and permanently imprinted by swelling the particles in an appropriate solvent, followed by drying. The surface tailoring of the Janus elastomeric spheres, found by SEM, is dependent on the PU/PBDO ratio and on the elastic properties of the particles.
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- MRS Online Proceedings Library (OPL) , Volume 1483: Symposium S – New Trends in Polymer Chemistry and Characterization , 2012 , imrc12-1483-s5b-o019
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- Copyright © Materials Research Society 2012