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Tunning the Elastic Properties of Wrinkled Janus Particles

Published online by Cambridge University Press:  17 December 2012

Ana Catarina Trindade ,
João Paulo Canejo  and
Maria Helena Godinho
Ana Catarina Trindade
Affiliation:
Department of Materials Science and CENIMAT/I3N, FCT-UNL, Campus de Caparica, 2829-516 Caparica, Portugal.
João Paulo Canejo
Affiliation:
Department of Materials Science and CENIMAT/I3N, FCT-UNL, Campus de Caparica, 2829-516 Caparica, Portugal.
Maria Helena Godinho
Affiliation:
Department of Materials Science and CENIMAT/I3N, FCT-UNL, Campus de Caparica, 2829-516 Caparica, Portugal.
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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.

Keywords

Elastic propertiespolymerizationsensor
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1483: Symposium S – New Trends in Polymer Chemistry and Characterization , 2012 , imrc12-1483-s5b-o019
Copyright
Copyright © Materials Research Society 2012 

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References

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