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(a) Unfolding of polymer scrolls upon temperature change. (b) Alignment of particles in presence of a flow field-forced flow along the glass tube (top) and random flow of particles in the absence of a flow field-flow outside the glass tube (bottom).
(a) Theoretical phase diagram predicting the size/shape of the particles with the - and -axes being the normalized radius of curvature and the layers’ thickness ratio. Each line corresponds to a different ratio of biaxial modulus with tubes/rings forming above the line and arcs/coils below. (b) Experimentally observed structures, cylinders or rings above the black solid line, that correspond to the experimental value or coils and arcs below the line.
Schematic explanation of the change in the bending direction of the Au/Ti-PDMS bilayer.
Reversible response of polymer scrolls triggered by temperature changes.
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