Abstract
Synthetic permanently charged polyelectrolytes are intensively used as process auxiliary agents in several branches of industry. Particularly important is their application in solid/liquid separation processes, which are parts of water purification, wastewater treatment, and papermaking. The macromolecular and hydrodynamic characteristics of such synthetic polyelectrolytes strongly influence the efficacy and applicability of the polymers. Despite progress in the understanding of the general solution behavior of polyelectrolytes, their comprehensive characterization remains a challenge. This concerns almost all technologically and practically interesting polyelectrolytes, which typically have very high molar masses and are heterogeneous with respect to the molar mass. In some cases, the chain architecture deviates from the linearity. Analytical ultracentrifugation provides advantages due to the absence of interaction with any column material such as used for chromatographic methods. This chapter presents and discusses the advantages and limitations of analytical ultracentrifugation in terms of polyelectrolyte characterization.
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Acknowledgments
The authors thank aquaTech Geneva, Switzerland, for having provided the polyelectrolytes and the Swiss National Science Foundation for financial support (grants 200020_119818/1 and 200020_135162/1).
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Wandrey, C., Ahmadloo, H. (2016). Hydrodynamic Analysis of Synthetic Permanently Charged Polyelectrolytes. In: Uchiyama, S., Arisaka, F., Stafford, W., Laue, T. (eds) Analytical Ultracentrifugation. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55985-6_13
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DOI: https://doi.org/10.1007/978-4-431-55985-6_13
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