Supramolecular polymers based on cyclodextrins

Two types of supramolecular polymers based on cyclodextrins were prepared. One was a host-guest type, and the other was a polyrotaxane type. When a guest part was covalently attached to cyclodextrin, they formed supramolecular dimers, a cyclic daisy chain, supramolecular oligomers, and polymers. t-Boe-cinnamamide-alpha-cyclodextrin was found to form chiral supramolecular polymers in aqueous solutions. Supramolecular poly[2]rotaxane polymers and supramolecular alpha,beta-cyclodextrin copolymers were obtained. Polyrotaxanes containing beta-cyclodextrin or gamma-cyclodextrin were prepared. (c) 2006 Wiley Periodicals, Inc.