Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session J06: Physics of Bio-inspired Materials
3:00 PM–5:48 PM,
Tuesday, March 16, 2021
Room: 06
Sponsoring
Units:
DSOFT DBIO DPOLY
Chair: Ling Li, Virginia Tech
Abstract: J06.00005 : Biomimetic structural color through arrested phase separation
4:36 PM–4:48 PM
Live
Presenter:
Alba Sicher
(ETH Zurich)
Authors:
Alba Sicher
(ETH Zurich)
Andreas Menzel
(Paul Scherrer Institute)
Maria Feofilova
(ETH Zurich)
Robert Style
(ETH Zurich)
René Rossi
(Empa)
Eric R Dufresne
(ETH Zurich)
Recently, Style et al. (PRX 2018) showed that it is possible to obtain monodisperse micron-size droplets by inducing liquid-liquid phase separation inside networks with elastic moduli on the order of 0.1 MPa. Here, we attempt to scale this process down to the optical scale through polymerization-induced phase separation in a 0.1 GPa-scale network. As a result, we obtain stable polymer composites with modest structural correlations at optical length scales, and structural color through a combination of Rayleigh and coherent scattering.
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