Progress in MicroemulsionsS. Martellucci, A.N. Chester The current state of the art of various aspects of micro emulsion systems is reflected in this volume. Major topics discussed include: general background on solubilized systems, phase diagrams and phase equi libria, bicontinuous microemulsions, Winsor's phases, theories and models of complex self association structures, cry tical behaviour, phase tran sitions in lyotropic liquid crystals. I hope that this book will serve its intended objective of reflecting our current understanding of microemulsions both in theory and practice, and that it will be useful to researchers, both novices as well as experts, as a valuable reference source. I feel indebted to the people of the Ettore Majorana Centre: the friendly atmosphere of the Erice centre provided a very effective environ ment to enjoy the company of colleagues and friends during breaks and after sessions, and to discuss problems of mutual interest. The courtesy, efficiency and devotion of the secretarial and technical staff was also appreciated, and greatly contributed to make the Workshop a smoothly run ning one. The Scientific Secretary Donatella Senatra Department of Physics University of Florence (Italy) v INTRODUCTION The decision to publish. in a more permanent form than heretofore. the Proceedings of the Workshop on "Progress in Microemulsion" of the Inter national School of Quantum Electronics. which was held in Erice (Italy) from October 26 to November 1st. 1985. under the auspices of the "Ettore Majorana" Centre for Scientific Culture. will prove to be a sound one. |
Contents
3 | |
A simple interpretation of hydrophobic interactions | 31 |
From micellization to microemulsion formation | 41 |
Phase behavior of ternary systems H20oilamphiphile | 61 |
a comparison | 73 |
a biased random walk through the literature | 85 |
the TalmonPrager | 113 |
Evidence for a bicontinuous structure | 125 |
A global description of phase equilibria in the quaternary | 159 |
Static small angle neutron scattering on concentrated water | 185 |
Thermal analysis of waterinoil microemulsions | 207 |
Structural properties of microemulsionderived | 217 |
Structural transformations in lyotropic liquid crystals | 225 |
Some aspects of lyotropic liquid crystals | 235 |
Structural modification induced by external agents | 251 |
Determination of the rigidity constant of the amphiphilic | 263 |
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Common terms and phrases
aggregation numbers alcohol amphiphile aqueous B.W. Ninham behavior bicontinuous bilayer birefringence calculated chain Chem chemical potentials coexistence Colloid Colloid Interface Sci components constant core correlation corresponding cosurfactant counterion critical micelle concentration critical point curvature curve decrease density diffusion dodecane droplets effect emulsion entropy equation equilibrium experimental Figure free energy function globules glycerol head group hexanol hydration hydrocarbon hydrophobic increases interactions interfacial film interfacial tension ionic surfactant isotropic lamellar liquid lamellar phase layer length Lett Lindman lipid liposomes liquid crystal lyotropic mesophase micellar solution micelles microemulsion mixtures molar molecular monodisperse nematic nonionic observed obtained particle pentanol phase diagram phase microemulsion Phys polar present radius ratio region repulsive Ruckenstein samples scattering solubilizate solubilized spherical studies surface tension surfactant surfactant molecules t₁ t₂ Taupin temperature ternary theory thermodynamic three-phase transition Waals Wennerström X-ray ΟΔΕ