Viscoelastic processes in non-ergodic states (percolation and glass transitions) of attractive micellar systems

F. Mallamace, M. Broccio, P. Tartaglia, W.R. Chen, A. Faraone and S.H. Chen

Physica A: Statistical Mechanics and its Applications, 2003, vol. 330, issue 1, 206-217

Abstract: We report a set of viscoelastic measurements in aqueous solutions of a copolymer micellar system with attractive interactions, a system characterized by a percolation line (PT), and a structural arrest (SA) in the particle diffusion motions of a kinetic glass transition (KGT). We observe, in both transitions, dramatic variations in both the elastic (or storage G′(ω)) and loss components (G″(ω)) of the shear moduli. At the PT, rheological data are characterized by a scaling behavior, whereas at the SA G′ and G″ develop a plateau and a marked minimum, respectively. These behaviors are described in the frame of percolation models and mode coupling theory (MCT).

Keywords: Percolation; Glass transition; Viscoelasticity (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:330:y:2003:i:1:p:206-217

DOI: 10.1016/j.physa.2003.08.026

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