Supramolecular systems based on amidoammonium and amidoaminocalix[4]resorcinarenes and polyacrylic acid

Abstract

© 2015 Elsevier B.V. In the solutions of polyacrylic acid (PAA) the amphiphilic calix[4]resorcinarenes 1-. 10 and their complexes with Methyl Orange (MO) form binary (. 1-. 10)-PAA and tertiary (. 2-. 10). -MO-PAA supramolecular complexes which are water-soluble in the case of amidoammonium (. 1-. 5) and water-insoluble in the case of amidoamino (. 6, 7) or amido(dimethylamino) (. 8-. 10) calixresorcinarenes. Almost 90% of removal of MO from the aqueous solution is achieved by the formation of the water-insoluble systems (. 6-. 10)-m{cyrillic}O{cyrillic}-PAA. In aqueous solution the particles of the (. 1-. 5)-PAA systems have average hydrodynamic diameters which values vary depending on the length of the alkyl substituents of macrocycles.