Aggregation of new bipolar glucosyled and cationic fluoroamphiphiles in aqueous media - Physico-chimie des Matériaux et des Electrolytes pour l'Energie Laboratoire - - EA 6299 Accéder directement au contenu
Article Dans Une Revue Journal of Colloid and Interface Science Année : 2013

Aggregation of new bipolar glucosyled and cationic fluoroamphiphiles in aqueous media

Résumé

A new series of N-[3-(trimethylamino)propyl]-perfluoro-N-glucosyl amide-Iodides, differing by the length of the fluorocarbon tail (7, 9, and 11), have been synthesized in three steps involving unprotected glucose, N,N-dimethyl-1,3-propane diamine, the appropriate methyl-perfluoroalcanoate, and methyl iodide. Their aggregation and surface properties were studied in aqueous solution using conductivity, surface tension, and dynamic light scattering measurements. The critical micelle concentrations (CMC), the micellar aggregation numbers, the geometric packing parameters, the area/surfactant molecule at the interface, the surface excess concentration, the micellar ionization degree β, and the free energies of micellization have been investigated. DLS results show various morphologies of aggregates such as micelles and vesicles according to the increase in the hydrophobic chain length.

Dates et versions

hal-02064192 , version 1 (11-03-2019)

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Citer

Thi Huong Viet Ngo, Christine Damas, Régine Naejus, Robert Coudert. Aggregation of new bipolar glucosyled and cationic fluoroamphiphiles in aqueous media. Journal of Colloid and Interface Science, 2013, 389 (1), pp.157-163. ⟨10.1016/j.jcis.2012.09.016⟩. ⟨hal-02064192⟩

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