Europhys. Lett.
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
Europhys. Lett., 65 (5) , pp. 712-718 (2004)
DOI: 10.1209/epl/i2003-10172-5

Re-entrant glass transition and logarithmic decay in a jammed micellar system. Rheology and dynamics investigation

J. Grandjean and A. Mourchid

Complex Fluids Laboratory, Unité Mixte de Recherche 166 du CNRS-Rhodia 259 Prospect Plains Rd, Cranbury, NJ 08512, USA

(Received 5 June 2003; accepted in final form 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.

82.70.Dd - Colloids.
61.25.Hq - Macromolecular and polymer solutions; polymer melts; swelling.
64.70.Pf - Glass transitions.

© EDP Sciences 2004