SOLUBILIZATION OF AROMATIC-HYDROCARBONS IN AQUEOUS BETA-CYCLODEXTRIN SOLUTIONS IN THE PRESENCE OF BIS(4-TERT-BUTYLPHENOXY) SUBSTITUTED AMMONIUM SALT

The solubilization of phenanthrene and fluorene in aqueous beta-cyclod extrin (CD) solutions in the presence of tylphenoxy)butyl]-1,4-diazoni abicyclo[2.2.2]octane dibromide (BuDBDiBr) at the constant ratio n(CD) : n(surfactant) = 2 : 1 is completely suppressed. However, the solubi lization of pyrene, acenaphthylene, acenaphthene in these systems rema rkably increases. It can be assumed that inclusion complexes of CD wit h the surfactant containing in the side chains 4-tert-butylphenoxy gro up form associates which are able to solubilize aromatic hydrocarbons of suitable structure with high efficiency. The highest increase of th e solubilized amount in the systems CD-BuDBDiBr (the mole ratio 2 : 1) was obtained with pyrene.