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The Viscosity of Polyelectrolytes: Influence of counterion and solvent type

30 January 2024, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

We study the viscosity of polystyrene sulfonate with sodium and tetrabutylammonium counterions in aqueous and organic solvent media. We find that at low concentrations, the Fuoss law (ηsp ∼ c1/2) is approximately obeyed, but at higher concentrations an exponential dependence on the polymer volume fraction sets in. These findings are discussed in terms of Fujita’s free volume theory.

Keywords

Polyelectrolyte
Rheology
Free Volume
Counter-Ion

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Version History

Jan 30, 2024 Version 1

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The content is available under CC BY NC 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2024-jtt33
D O I: 10.26434/chemrxiv-2024-jtt33 [opens in a new tab]

Funding

GO 3250/2-1
GO 3250/2-1

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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