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Interactions between dyes and polyelectrolytes: Effect of polymer–polymer interactions
Author(s) -
Petrak K.
Publication year - 1984
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1984.070291231
Subject(s) - polyelectrolyte , vinyl alcohol , polymer , polyacrylamide , aqueous solution , chemistry , polymer chemistry , membrane , gelatin , semipermeable membrane , chemical engineering , organic chemistry , biochemistry , engineering
The competition between methyl orange dye and various polymers [gelatin, poly(vinyl alcohol), polyacrylamide, etc.] for the binding sites on quaternized poly(1‐vinylimidazole) in aqueous solutions was studied. The method used was based on a well‐known effect of dissolved polyelectrolytes on the rate of diffusion of solutes through semipermeable membranes. The final results are expressed as the ratio of C 1 ″ (bound)/ C 1 ′ (bound), where C 1 ″ (bound) is the amount of the solute adsorbed to a mixture of two polymers and C 1 (bound) is the amount of solute bound to a single polymer. In the case of quaternized poly(1‐vinylimidazole) it was found that as much as 15% of the solute bound to the polymer can be replaced by another, “nonadsorbing” polymer.