Volume 65, Number 5, March 2004
|Page(s)||712 - 718|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 February 2004|
Re-entrant glass transition and logarithmic decay in a jammed micellar system. Rheology and dynamics investigation
Complex Fluids Laboratory, Unité Mixte de Recherche 166 du CNRS-Rhodia 259 Prospect Plains Rd, Cranbury, NJ 08512, USA
Accepted: 18 December 2003
Rheology and dynamics of micellar solutions of polystyrene-poly(acrylic acid) block copolymers are investigated in the jammed regime. With increasing attraction between soft spheres, both techniques capture the re-entrant liquid-to-glass transition. The dynamics was also investigated at an attraction strength above the re-entrant transition branch. With increasing concentration of sticky soft spheres in this region, the particle dynamics shows a remarkable extended logarithmic decay. All the theoretical predictions of mode coupling theory can be found in our system.
PACS: 82.70.Dd – Colloids / 61.25.Hq – Macromolecular and polymer solutions; polymer melts; swelling / 64.70.Pf – Glass transitions
© EDP Sciences, 2004
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