Water/n-propanol/sucrose laurate/allylbenzene micellar systems were formulated and applied in the isomerization of allylbenzene in the presence of heterogenized derivatives of some platinum group catalysts. The ratio (w/w) of n-propanol/surfactant studied herewith was 2/1. Temperature insensitive microemulsions were found. The microemulsions were characterized by the volumetric parameters, density, excess volume, ultrasonic velocity, and isentropic compressibility. The densities increase with increases in the water volume fraction. Excess volumes of the microemulsions decrease for water volume fractions below 0.2, level off for water volume fractions between 0.2 and 0.6 then increase for water volume fractions above 0.6. Excess volumes of the studied micellar systems increase with temperature. Isentropic compressibilities increase with temperature for water volume fractions below 0.8 and decrease for water volume fractions above 0.8. Structural transitions from water-in-oil to bicontinuous to oil-in-water occur along the microemulsion phase. The particle hydrodynamic diameter of the oil-in-water microemulsions at the 0.95 water volume fraction was found to decrease with temperature

Characterization of Water/Sucrose Laurate/n-Propanol/Allylbenzene Microemulsions / Monzer Fanun; Ziad Ayad; Samer Mudalal; Shirel Dahoah; Diana Meltzer; Michael Schwarze; Reinhard Schomäcker; Jochanan Blum. - In: JOURNAL OF SURFACTANTS AND DETERGENTS. - ISSN 1097-3958. - STAMPA. - 15:(2012), pp. 505-512. [10.1007/s11743-012-1344-1]

Characterization of Water/Sucrose Laurate/n-Propanol/Allylbenzene Microemulsions

AYYAD, ZIAD;MUDALAL, SAMER;
2012

Abstract

Water/n-propanol/sucrose laurate/allylbenzene micellar systems were formulated and applied in the isomerization of allylbenzene in the presence of heterogenized derivatives of some platinum group catalysts. The ratio (w/w) of n-propanol/surfactant studied herewith was 2/1. Temperature insensitive microemulsions were found. The microemulsions were characterized by the volumetric parameters, density, excess volume, ultrasonic velocity, and isentropic compressibility. The densities increase with increases in the water volume fraction. Excess volumes of the microemulsions decrease for water volume fractions below 0.2, level off for water volume fractions between 0.2 and 0.6 then increase for water volume fractions above 0.6. Excess volumes of the studied micellar systems increase with temperature. Isentropic compressibilities increase with temperature for water volume fractions below 0.8 and decrease for water volume fractions above 0.8. Structural transitions from water-in-oil to bicontinuous to oil-in-water occur along the microemulsion phase. The particle hydrodynamic diameter of the oil-in-water microemulsions at the 0.95 water volume fraction was found to decrease with temperature
2012
Characterization of Water/Sucrose Laurate/n-Propanol/Allylbenzene Microemulsions / Monzer Fanun; Ziad Ayad; Samer Mudalal; Shirel Dahoah; Diana Meltzer; Michael Schwarze; Reinhard Schomäcker; Jochanan Blum. - In: JOURNAL OF SURFACTANTS AND DETERGENTS. - ISSN 1097-3958. - STAMPA. - 15:(2012), pp. 505-512. [10.1007/s11743-012-1344-1]
Monzer Fanun; Ziad Ayad; Samer Mudalal; Shirel Dahoah; Diana Meltzer; Michael Schwarze; Reinhard Schomäcker; Jochanan Blum
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/404964
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