Sodium and pH responsive hydrogel formation by the supramolecular system calix[4]pyrrole
Begoña Verdejo1, Francisco Rodríguez-Llansola, Beatriu Escuder
1Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans 16, 43007 Tarragona, Spain.
Abstract:
We report and rationalize the formation of gels, responsive to sodium cations or pH changes, in aqueous media by a supramolecular system constituted of an aryl extended calix[4]pyrrole receptor and the tetramethylammonium guest.


