additives on the size (4-6), on electrical percolation pro-Using steady state and time resolved fluorescence techniques, cesses (7-9), or on the formation of microemulsion gels the photophysical parameters of acridone in w/o microemulsions (10)(11)(12).
of aerosol OT/isooctane were obtained. The results point to the Fluorescence probing is one of the most extensively used existence of two species of acridone in equilibrium. In this equilibmethods to obtain structural properties of several kinds of rium some water molecules are involved. The acridone species micellar aggregates and of a great number of macromolewere localized at the micellar interface and in the water pool, cules (13). Using fluorescence probing and electrical conrespectively. The pseudo-equilibrium constant of the displacement ductivity measurements, the effect of two different water process and the number of water molecules needed to displace soluble polyvinyl pyrrolidone polymers, PVP K15 (MW Å acridone from the organic interface to the water pool were determined. In the presence of two different molecular weight polyvinyl 10000) and PVP K25 (MW Å 24000), on microemulsion pyrrolidone polymers the two species of acridone were also deproperties is examined in this work. The microemulsion was tected. The pseudo-equilibrium constant and the water molecules composed of bis(2-ethylhexyl)sodium sulfosuccinate (aeroinvolved in the distribution equilibrium have also been determined sol OT, AOT), dissolved in isooctane with variable water and were compared with those obtained in nonperturbed microcontents and acridone was used as a fluorescence probe.
emulsions. Their differences are related with the average droplet
Acridone is a fluorescent molecule soluble in water and occupancy and with changes on the water pool polarity induced practically insoluble in isooctane which can be bound at the by the addition of water soluble polymers.