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- Title
Polymers from 1-Vinyl-2-(hydroxymethyl)imidazole in Water: Altering from UCST to LCST Behavior via O-Ethylation.
- Authors
Meiswinkel, Georg; Ritter, Helmut
- Abstract
1-Vinyl-2-(methoxymethyl)imidazole ( 6), 1-vinyl-2-(ethoxymethyl)imidazole ( 7), 1-vinyl-2-(propoxymethyl)imidazole ( 8), and 1-vinyl-2-(butoxymethyl)imidazole ( 9) are synthesized through the etherification of 1-vinyl-2-(hydroxymethylimidazole) ( 1) with corresponding alkyl halides ( 2-5). Corresponding homopolymers ( 10-13) are synthesized via free radical polymerization and investigated concerning their temperature-dependent solubility in water. The homopolymer 11 shows a lower critical solution temperature (LCST) behavior with a cloud point of 23 °C. Through copolymerization of 7 with N-vinylimidazole ( 14), the cloud point is varied up to 42 °C.
- Subjects
VINYL polymers; VINYLATION; ETHERIFICATION; POLYMERIZATION; SOLUBILITY; COPOLYMERIZATION
- Publication
Macromolecular Chemistry & Physics, 2014, Vol 215, Issue 7, p682
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201400064