Abstract
The solubilization capacities of binary systems based on cationic surfactants (cetyltrimethylammonium bromide and dodecanediyl-1,12-bis(hydroxyethylmethylhexadecylammonium bromide)) and new amphiphilic calix[4]resorcinol with amino acid residues at the upper rim and alkyl substituents at the lower rim with respect to the spectral probe Sudan I and the fluorescent labels (pyrene and prodan) were studied by spectrophotometry and fluorimetry. Critical aggregation concentrations were determined and aggregation numbers were calculated. The sizes of surfactant—calix[4]resorcinol complexes were determined by dynamic light scattering.
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