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Details for article 101 of 112 found articles
| Title: |
Thermodynamics of micellization of C7 and C8 lecithins |
| Author: |
MARTINEZ-LANDEIRA, PABLO BESADA, LINA SEOANE, LAURA RUSO, JUAN M. PRIETO, GERARDO SARMIENTO, FELIX |
| Appeared in: |
Molecular physics |
| Paging: | Volume 100 (2002) nr. 10 pages 1633-1639 |
| Year: |
2002-05-20 |
| Contents: |
The surface tensions of the lecithins diheptanoyl- and dioctanoylphosphatidylcholine in phosphate medium, pH 7.4, have been measured over the temperature range 288.15-313.15K. Critical micelle concentrations, thermodynamic micellization parameters, adsorption parameters, transfer data of micelles to the aqueous surface and surface area minima per molecule were obtained from these measurements. Critical micelle concentrations slightly decrease with temperature. The micellization processes became increasingly exothermic with increase in temperature. The variation of Gibbs energies of transfer indicates that the processes are most favourable at low temperatures. From a study of entropy-enthalpy compensation phenomenon a compensation temperature of 300-1 K-1 was found, and from the intercept an analysis of the hydrophobic-hydrophilic balance was carried out. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 101 of 112 found articles
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