Adsorption kinetics for cationic polyelectrolytes onto pulp fibers in turbulent flow

Autor:	Magnus Falk, Lars Wågberg, Gunnel Risinger, Lars Ödberg
Rok vydání:	1989
Předmět:	chemistry.chemical_classification General Engineering Cationic polymerization Polymer Chloride Polyelectrolyte Cellulose fiber Adsorption chemistry Chemical engineering Polymer chemistry Monolayer medicine Titration medicine.drug
Zdroj:	Colloids and Surfaces. 40:115-124
ISSN:	0166-6622
DOI:	10.1016/0166-6622(89)80012-5
Popis:	The adsorption kinetics for three cationic polyelectrolytes onto cellulosic fibers has been determined in turbulent flow. Two cationic polyacrylamides of high molecular weight (>106) that had been labeled by a fluorescent group and by tritiation, respectively, were used together with a medium molecular weight dimethyldiallylammonium chloride polymer. The latter polymer was analyzed by polyelectrolyte titration. An adsorption level of a few hundred μg polymer per g of pulp was established in all cases in less than 1 s. This initial level is much lower than the equilibrium adsorbed amount and corresponds roughly to a monolayer of polymer molecules having the same conformation as in solution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::15e0b3cc95568e2f16b47515e9a48f37 https://doi.org/10.1016/0166-6622(89)80012-5 Zobrazit plný text záznamu