Swelling kinetics of a compressed lamellar phase
نویسندگان
چکیده
منابع مشابه
Swelling kinetics of a compressed lamellar phase
We investigate how multilamellar vesicles prepared in a compressed state under flow return to equilibrium. The kinetics is studied by following the temporal evolution of the viscoelasticity after the shear is stopped. It exhibits a two-step relaxation whose slower stage is strongly affected by temperature. According to a simple model, the temperature-dependent permeability of the lamellar phase...
متن کاملSwelling and shrinking kinetics of a lamellar gel phase
David J. Fairhurst, Mark E. Baker, Neil Shaw, and Stefan U. Egelhaaf Department of Physics, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom Unilever Research, Port Sunlight Laboratory, Bebington, Wirral L63 3JW, United Kingdom Condensed Matter Physics Laboratory, Heinrich-Heine-University, 40225 Düsseldorf, Germany SUPA, School of Physics, The University of Edinburgh, Edinburg...
متن کاملSwelling kinetics of the onion phase
A theory is presented for the behavior of an array of multi-lamellar vesicles (the onion phase) upon addition of solvent. A unique feature of this system is the possibility to sustain pressure gradients by tension in the lamellae. Tension enables the onions to remain stable beyond the unbinding point of a flat lamellar stack. The model accounts for various concentration profiles and interfaces ...
متن کاملKinetics of Swelling Gels
Abstract. We develop a general theory of the swelling kinetics of polymer gels, with the view that a polymer gel is a two-phase fluid. The model we propose is a free boundary problem and can be used to understand both contraction and swelling, including complete dissolving or dehydration of polymeric gels. We show that the equations of motion satisfy a minimum energy dissipation rate principle ...
متن کاملSwelling Kinetics of a Microgel Shell
Tanaka’s approach to swelling kinetics of a solid gel sphere is extended to a sphericalmicrogel shell. The boundary condition at the inner surface is obtained from the minimization of shear elastic energy. Temporal evolution of a shell is represented in a form of expansion over eigenfunctions of the corresponding diffusion equation. The swelling of Tanaka’s solid spherical gel is recovered as a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2001
ISSN: 1292-8941
DOI: 10.1007/s101890170145