Supramolecular Assemblies Obtained by Mixing Different Cyclodextrins and AOT or BHDC Reverse Micelles

OSCAR FERNANDO SILVA; N. MARIANO CORREA; JUANA J. SILBER; RITA H. DE ROSSI; MARIANA A. FERNÁNDEZ

AMER CHEMICAL SOC

Lugar: Washington; Año: 2014 vol. 30 p. 3354 - 3354

n this contribution we show the effect of the surfactant polar head and the external solvent on the incorporation of different cyclodextrins (CDs): α-CD, β-CD, -CD, decenylsuccinyl-b-CD (Mod-b-CD) and hydroxypropyl-b-CD (hp-b-CD) in different RMs: benzene/sodium 1,4-bis (2-ethylhexyl) sulfosuccinate(AOT)/water, benzene/ benzyl-n-hexadecyldimethylammonium chloride (BHDC)/water and compare them with previous results obtained in n-heptane/AOT/water RMs. In order to investigate the different systems we have used UV?Vis and induced circular dichroism spectroscopy (ICD) and the achiral molecular probe methyl orange (MO). The results show dramatic differences changing the external solvent and the surfactant which are explained considering the differences in the RMs interfaces composition, the water-surfactant interaction and the CDs location in the different media investigated. None of the CDs were incorporated in the benzene/AOT/water RMs at any W0 value studied while it