Advanced Materials, Vol.24, No.24, 3191-3195, 2012
A Crown Ether Appended Super Gelator with Multiple Stimulus Responsiveness
A crown ether appended super gelator is designed and synthesized. It can gel a variety of organic solvents and shows excellent gelation properties with both low critical gelation concentration and short gelation time. Due to the introduction of the crown ether moiety and a secondary ammonium unit, the supramolecular gels show reversible gel-sol transitions. The supramolecular gels can also be molded into shape-persistent and free-standing objects.
Keywords:crown compounds;sol-gel processes;super gelators;host-guest systems;supramolecular chemistry