|Recent Progress in Synthesis of Polyrotaxanes Containing Cyclodextrin Wheels
Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo, Japan
Nippon Gomu Kyokaishi,(2007),80(7),260-265 General Review in Japanese
Polyrotaxanes consisting of cyclodextrins (CDs) as wheels and linear polymers such as poly(ethylene glycol) have been widely investigated by a number of research groups since their first discovery by Harada et al. Many attractive concepts and materials based on the unique structure of the polyrotaxanes formed by the end-capping of the pseudopolyrotaxane have been hitherto reported. This review summarizes the recent progress in synthesis of poly-rotaxanes containing CD wheels, with emphasis on the synthesis by end-capping methods of pseudopolyrotaxane, along with a related few applications. Supramolecular-crosslinking between a CD host and a guest polymer is also briefly discussed.
Polyrotaxane, Cyclodextrin, End-capping, Supramolecular cross-link, Synthesis