Cooperative Binding and Diffusion of Cyclodextrins in Aqueous Polymer Solutions

Polymeric Rotaxanes

“…The structure of poly pseudo rotaxanes was not characterized in detail. The complexation behavior of α- or β-CD with some polyions (i.e., poly(sodium methacrylate), poly(sodium styrenesulfornate), and copolymers of diallylbenzylmethylammonium chloride and SO 2 ) was also studied by diffusion coefficient measurements of the CD. , The integral diffusion coefficient of the CD decreased with increasing polymer concentration, indicative of the complexation of CD with residues in the polymers examined. Applying the theory of McGhee and von Hippel to the diffusion equation, the number of consecutive residues covered by a bound CD, the intrinsic binding constant, and the cooperative parameter for these systems were estimated.…”

Polymers Containing Covalently Bonded and Supramolecularly Attached Cyclodextrins as Side Groups

“…It was found that the diffusion coefficient of CDs in polymeric solutions decreased depending on the polymer concentration, the content of sulfonation and styrene, and the degree of neutralization. These results were interpreted as interaction between CDs and the polymer side chain, but the structures of polypseudorotaxane were not characterized in detail [82][83][84].…”

Recognition of polymer side chains by cyclodextrins

“…[9][10][11][12][13][14][15] Before the 1990s, there were only a few papers on the interaction of CDs with side chains of water soluble polymers in aqueous media. [16][17][18] However, since our first paper 19 on the molecular recognition of alkyl side chains bound to a poly (acrylamide) by CDs was published in 1997, an increasing number of research groups began to focus on the interaction of CDs with side chains of water soluble polymers. Recent years have brought considerable interest in studying the interaction of CDs with side chains of water soluble polymers from the viewpoint of environmentally benign applications based on aqueous systems.…”