Viscosity of Polyelectrolytes: Influence of Counterion and Solvent Type

Anish Gulati; Carlos G. Lopez

doi:10.1021/acsmacrolett.4c00055

Viscosity of Polyelectrolytes: Influence of Counterion and Solvent Type

Anish Gulati
, Carlos G. Lopez

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We study the viscosity of polystyrenesulfonate with sodium and tetrabutylammonium counterions in aqueous and organic solvent media. We find that at low concentrations the Fuoss law (η_sp ∼ c^1/2) 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.

Original language	English (US)
Pages (from-to)	1079-1083
Number of pages	5
Journal	ACS Macro Letters
Volume	13
Issue number	8
DOIs	https://doi.org/10.1021/acsmacrolett.4c00055
State	Published - Aug 20 2024

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acsmacrolett.4c00055

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title = "Viscosity of Polyelectrolytes: Influence of Counterion and Solvent Type",

abstract = "We study the viscosity of polystyrenesulfonate 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{\textquoteright}s free volume theory.",

author = "Anish Gulati and Lopez, \{Carlos G.\}",

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doi = "10.1021/acsmacrolett.4c00055",

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T1 - Viscosity of Polyelectrolytes

T2 - Influence of Counterion and Solvent Type

AU - Gulati, Anish

AU - Lopez, Carlos G.

PY - 2024/8/20

Y1 - 2024/8/20

N2 - We study the viscosity of polystyrenesulfonate 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.

AB - We study the viscosity of polystyrenesulfonate 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.

UR - https://www.scopus.com/pages/publications/85200560133

UR - https://www.scopus.com/pages/publications/85200560133#tab=citedBy

U2 - 10.1021/acsmacrolett.4c00055

DO - 10.1021/acsmacrolett.4c00055

M3 - Article

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AN - SCOPUS:85200560133

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JO - ACS Macro Letters

JF - ACS Macro Letters

IS - 8

ER -

Viscosity of Polyelectrolytes: Influence of Counterion and Solvent Type

Abstract

All Science Journal Classification (ASJC) codes

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