The lamellar-to-isotropic transition in ternary amphiphilic systems
نویسندگان
چکیده
منابع مشابه
The Lamellar-to-Isotropic Transition in Ternary Amphiphilic Systems
We study the dependence of the phase behavior of ternary amphiphilic systems on composition and temperature. Our analysis is based on a curvature elastic model of the amphiphile film with sufficiently large spontaneous curvature c0 and sufficiently negative saddle-splay modulus κ̄ that the stable phases are the lamellar phase and a droplet microemulsion. In addition to the curvature energy, we c...
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Extensions of a previously presented Landau-de Gennes type liquid crystalline phase transition model for the direct isotropic/smectic-A (lamellar) a phase transition to the direct isotropic/smectic-C (tilted lamellar) transition are studied. Two different proposed extensions to the model are studied both in the context of ideal ordering (point volume) and full three-dimensional uniaxial scalar/...
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We propose a model for the liquid-liquid (L(alpha)-->L(alpha(') )) phase transition observed in osmotic pressure measurements of certain charged lamellae-forming amphiphiles. The model free energy combines mean-field electrostatic and phenomenological nonelectrostatic interactions, while the number of dissociated counterions is treated as a variable degree of freedom that is determined self-con...
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 1996
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i1996-00196-9