Studies on supramolecular chemistry of calixarenes (I) - Liquid membrane transport of K+, Na+ ions with p-tert-butylcalix [n]arenes and their derivatives as carriers

The liquid membrane transports of K+ ions by p-tert-butylcalix [8]arene as carrier are investigated by the bubbling pseudo-emulsion liquid membrane, T his transport process is a proton-coupled transport with a coupled flow of protons in opposite direction. The driving force for the transport is the p H gradient between the source phase and the receiving phase, The selected t ransport for K+ ion or Na+ ion by p-tert-butylcalix [n]arene(n = 4, 6, 8) a s carriers are investigated.