Thermodynamic, interfacial, and structural properties of polyphasic microemulsion systems

Bellocq, A. M.; Bourbon, Dominique; Lemanceau, Bernard; Fourche, Georges

doi:10.1016/0021-9797(82)90194-1

Cited by 43 publications

(11 citation statements)

References 14 publications

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“…This current experimental interest in the critical behaviour of micellar and microemulsion solutions is due, to a great extent, to the very intricate results obtained so far. Indeed, if some experimental results [1][2][3][4][5][6][7][8] are in agreement with those found in pure or usual binary fluids, other data indicate a more complex behaviour [9][10][11]. In most cases, the critical phenomenon is measured by its critical exponents v and y which characterize, respectively, the divergences of the correlation length and the osmotic compressibility of the solution.…”

Section: Introducfiomsupporting

confidence: 53%

“…Over the past few years a large number of papers have been devoted to the experimental study of critical phenomena in mixtures involving surfactants. Two-, three-, four-, and even five-component systems were investigated [1][2][3][4][5][6][7][8][9][10][11]. This current experimental interest in the critical behaviour of micellar and microemulsion solutions is due, to a great extent, to the very intricate results obtained so far.…”

Section: Introducfiommentioning

confidence: 99%

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Experimental evidence for a continuous variation of effective critical exponents in a microemulsion system

1985

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2014 Nous présentons des résultats obtenus par diffusion de la lumière en différents points d'une ligne critique d'un système microémulsion quaternaire. Cette ligne débute par un point critique extreme. Les points critiques ont été approchés, soit en faisant varier la température à composition constante (chemin I), soit en faisant varier le rapport eau sur savon (X) à température constante (chemin II). Pour chaque point critique examiné, les valeurs des exposants critiques 03BD et 03B3 mesurées le long des deux chemins sont proches. Elles varient continûment des valeurs d'Ising à des valeurs très petites quand le point critique considéré s'approche du point critique extreme. Ce comportement critique complexe est analysé à l'aide des résultats du diagramme de phase. Abstract 2014 We present light scattering results obtained for a four-component microemulsion system in several distinct positions of a critical line. This line starts at a critical end point The critical points were approached either by raising the temperature at fixed composition (path I) or by increasing the water over surfactant ratio X at constant temperature (path II). For each critical point investigated, the critical exponents 03BD and 03B3 associated with the X variable (path II) are close to those obtained with the temperature (path I). They vary continuously from the Ising values to largely smaller ones as the critical end point is approached. This complex critical behaviour is discussed in relation with the phase diagram findings.

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Section: Introducfiomsupporting

confidence: 53%

Section: Introducfiommentioning

confidence: 99%

Experimental evidence for a continuous variation of effective critical exponents in a microemulsion system

1985

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“…Over the last few years a large number of papers have been devoted to the experimental study of critical phenomena in mixtures involving surfactants. Two-, three-, four-, and even fivecomponent systems were investigated [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. The current experimental interest mainly arises from the intricate results obtained so far.…”

Section: Introductionmentioning

confidence: 99%

Light scattering study of the critical behaviour in a ternary microemulsion system

1984

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The phase diagram composition-temperature of the AOT-water-decane system presents a line of critical points. This line has been approached along two paths which control the interactions between W/O droplets. The two parameters investigated are the temperature and the water over surfactant ratio. The critical behaviour has been followed by using light scattering. The data indicate a liquid-gas type behaviour and are in good agreement with the renormalization group theories for critical phenomena

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“…Based on those data Shinoda has developed an acceptable model, which could reasonably explain this dissolution phenomenon by formation of the structures such as log-boom (Becher, 1968), lamellar (McBain, 1950), cylindrical, spherical, ellipsoidal, or rodlike micelles (Shinoda, 1970). Many reports can be found in the literature about the thermodynamic stability considerations of the different microemulsion systems (Ruckenstein, 1981, Bennett et al, 1981, Bellocq et al, 1982, Prouvost et al, 1985, Biais et al, 1987, Mukherjee et al, 1997, García-Sánchez et al, 2001, Fu et al, 2002, 2003.…”

Section: Thermodynamics Of Microemulsionsmentioning

confidence: 99%

Microemulsions - A Brief Introduction

Najjar¹

2012

Microemulsions - An Introduction to Properties and Applications

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Thermodynamic, interfacial, and structural properties of polyphasic microemulsion systems

Cited by 43 publications

References 14 publications

Experimental evidence for a continuous variation of effective critical exponents in a microemulsion system

Experimental evidence for a continuous variation of effective critical exponents in a microemulsion system

Light scattering study of the critical behaviour in a ternary microemulsion system

Microemulsions - A Brief Introduction

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