title: A new type of thermoresponsive copolymer with UCST-type transitions in water: poly(N-vinylimidazole-co-1-vinyl-2-(hydroxymethyl)imidazole).
abstract: 1-Vinyl-2-(hydroxymethyl)imidazole (2) is synthesized by a procedure described in the literature. Corresponding copolymers with upper critical solution temperature (UCST)-type transitions in water and high-glass transition temperatures (Tg ) are prepared by free radical copolymerization with N-vinylimidazole (1). Depending on the copolymer composition, the cloud point can be varied between 19 and 41 °C. As the copolymer composition is identical with the monomer feed ratio, the cloud point can be easily tuned in the desired range. Furthermore, a distinctive pH-dependence and salt effect can be observed.
authors.affiliation: Department of Preparative Polymer Chemistry, Heinrich-Heine-University of Duesseldorf, Institute of Organic Chemistry and Macromolecular Chemistry, Universiteatsstrae 1, DE-40225 Duesseldorf.
authors.forename: Georg
authors.initials: G
authors.lastname: Meiswinkel
authors.forename: Helmut
authors.initials: H
authors.lastname: Ritter
mesh_terms: D006860:Hydrogen Bonding; D006863:Hydrogen-Ion Concentration; D007093:Imidazoles / Q000737:chemistry*; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D013696:Temperature; D044366:Transition Temperature; D014867:Water / Q000737:chemistry
chemical_list: D007093:Imidazoles; D011108:Polymers; D014867:Water; C029899:imidazole