Supramolecular calix[4]pyrrole polymers from a complementary pair of homoditopic host-guest molecules.

A triazole bridged bis-calix[4]pyrrole was successfully synthesized and further used for the first time to construct AABB type linear thermoresponsive supramolecular polymers by utilizing the host-guest interaction between calix[4]pyrroles and carboxylate units of tetrabutylammonium suberate.

A thermoresponsive supramolecular polymer gel from a heteroditopic calix[4]pyrrole.

Supramolecular polymerization of calix[4]pyrroles bearing tethered carboxylate functional groups was reported in the form of their tetrabutylammonium salts. At high concentrations one of the calix[4]pyrroles with a shorter linker between the calixpyrrole core and the carboxylate unit was found to give a thermoresponsive supramolecular polymer gel.