We study the relaxation of both spontaneous and shear-induced fluctuations in suspensions of charged-stabilized colloidal particles near the glass transition by dynamic light scattering and rheology. Both observations are here understood in terms of a common structural relaxation process under a hard-sphere mode-coupling formalism. For ergodic systems, we show that the descriptions of the relaxation dynamics in time and frequency domains are governed by a common set of dynamic parameters. It is further shown that the microscopic ergodicity break-up induces the emergence of the macroscopic glass elasticity.
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| http://dx.doi.org/10.1103/PhysRevE.82.021406 | DOI Listing |
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Article Synopsis
- The study proposes that water-in-water (W/W) emulsions can be created by mixing a polymer and a surfactant, leading to phase segregation when the surfactant's cloud temperature is lowered.
- Experiments involved using an ethoxylated triglyceride surfactant (Kolliphor ELP) with gelatin, where the gelatin reduced the surfactant's cloud temperature, allowing for two distinct aqueous phases to form.
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