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 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
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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. |
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ISSN: | 0014-3057 1873-1945 |
DOI: | 10.1016/j.eurpolymj.2008.03.013 |