Flocculation behavior of some cationic polyelectrolytes

The settling rates and adsorption isotherms produced by a variety of suites of cationic polyelectrolytes in 3% kaolin suspensions were measured. Settling rates increased with molar mass even for low‐mass, high‐charge polymers. The very high settling rates produced by cationic copolymers of acrylamid...

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Published in:Journal of applied polymer science 1994-05, Vol.52 (9), p.1317-1325
Main Authors: Smith-Palmer, Truis, Campbell, Nicole, Bowman, Janice L., Dewar, Patricia
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Surface properties
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description The settling rates and adsorption isotherms produced by a variety of suites of cationic polyelectrolytes in 3% kaolin suspensions were measured. Settling rates increased with molar mass even for low‐mass, high‐charge polymers. The very high settling rates produced by cationic copolymers of acrylamide decreased as the charge density of the polymer used increased. Hydrolysis of unbuffered polymers occurred over time and produced large changes in the effectiveness of the polymers. This is attributed to conformational changes. © 1994 John Wiley & Sons, Inc.
doi_str_mv 10.1002/app.1994.070520916
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source Wiley Online Library Polymer Backfiles; Wiley-Blackwell Journals (Backfile Content)
subjects Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Surface properties
title Flocculation behavior of some cationic polyelectrolytes
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