Solvent effects on the copolymerization kinetics of ionic (AMPS) and non-ionic (HEAm) acrylamide derivatives

The free-radical copolymerization of two N-substituted acrylamide monomers, the ionic AMPS (2-acrylamido-2-methyl-1-propanesulfonic acid) and the non-ionic HEAm (2-hydroxyethylacrylamide) is presented. Despite bearing similar polymerizable functionalities, HEAm is more reactive toward free-radical a...

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Veröffentlicht in:European polymer journal 2008-06, Vol.44 (6), p.1843-1848
Hauptverfasser: Gibon, Cécile M., Norvez, Sophie, Iliopoulos, Ilias, Goldbach, James T.
Format: Artikel
Sprache:eng
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Zusammenfassung:The free-radical copolymerization of two N-substituted acrylamide monomers, the ionic AMPS (2-acrylamido-2-methyl-1-propanesulfonic acid) and the non-ionic HEAm (2-hydroxyethylacrylamide) is presented. Despite bearing similar polymerizable functionalities, HEAm is more reactive toward free-radical addition than AMPS in water. In a mixed aqueous solvent containing salt, (0.5 M LiNO 3, 50 wt%) and ethanol (50 wt%), the reactivity ratio was found to be r AMPS = 0.53 and r HEAm = 1.06 indicating that copolymers with a nearly random distribution of sulfonic and hydroxy functionalities can be prepared.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2008.03.013