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Issue 24, 2018
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Different routes into the glass state for soft thermo-sensitive colloids

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Abstract

We report an experimental and theoretical investigation of glass formation in soft thermo-sensitive colloids following two different routes: a gradual increase of the particle number density at constant temperature and an increase of the radius in a fixed volume at constant particle number density. Confocal microscopy experiments and the non-equilibrium self-consistent generalized Langevin equation (NE-SCGLE) theory consistently show that the two routes lead to a dynamically comparable state at sufficiently long aging times. However, experiments reveal the presence of moderate but persistent structural differences. Successive cycles of radius decrease and increase lead instead to a reproducible glass state, indicating a suitable route to obtain rejuvenation without using shear fields.

Graphical abstract: Different routes into the glass state for soft thermo-sensitive colloids

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Article information


Submitted
08 Feb 2018
Accepted
22 May 2018
First published
24 May 2018

Soft Matter, 2018,14, 5008-5018
Article type
Paper

Different routes into the glass state for soft thermo-sensitive colloids

R. Rivas-Barbosa, E. Lázaro-Lázaro, P. Mendoza-Méndez, T. Still, V. Piazza, P. E. Ramírez-González, M. Medina-Noyola and M. Laurati, Soft Matter, 2018, 14, 5008
DOI: 10.1039/C8SM00285A

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