title: Supramolecular dynamics as origin for thermally induced insoluble-to-soluble-to-insoluble transitions of copolymers in water.
abstract: The synthesis of cationic mono-(6-O-(1-vinylimidazolium))-ß-cyclodextrin with toluenesulfonate as the corresponding anion is described. Free-radical copolymerization of the resulting host-guest complex with N-isopropylacrylamide or N,N-diethylacrylamide yielded copolymers showing a temperature-controlled solubility window in water. The impact of different anionic guests and salt concentrations on solubility behavior was investigated via turbidity measurements.
authors.affiliation: Heinrich-Heine-University of Duesseldorf, Institute of Organic Chemistry and Macromolecular Chemistry, Department of Preparative Polymer Chemistry, Universitaetsstraße 1, DE-40225 Duesseldorf.
authors.forename: Daniela
authors.initials: D
authors.lastname: Obels
authors.forename: Helmut
authors.initials: H
authors.lastname: Ritter
mesh_terms: D000178:Acrylamides / Q000737:chemistry; D001622:Betaine / Q000737:chemistry; D006358:Hot Temperature; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry; D012995:Solubility; D014867:Water / Q000737:chemistry*; D047392:beta-Cyclodextrins / Q000737:chemistry
chemical_list: D000178:Acrylamides; D011108:Polymers; D047392:beta-Cyclodextrins; C428028:poly(N,N-diethylacrylamide); D014867:Water; D001622:Betaine; D012965:Sodium Chloride; C067295:N-isopropylacrylamide