Viscosity of Dilute Polyelectrolyte Solutions: Concentration Dependence on Sodium Chloride, Magnesium Sulfate, and Lanthanum Nitrate

J. Cohen; Z. Priel

doi:10.1021/ma00195a060

Viscosity of Dilute Polyelectrolyte Solutions: Concentration Dependence on Sodium Chloride, Magnesium Sulfate, and Lanthanum Nitrate

J. Cohen, Z. Priel

Department of Chemistry

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

61 Scopus citations

Abstract

The reduced viscosity of polyelectrolyte solutions has been measured by using fully sulfonated sodium-neutralized polystyrene to which magnesium sulfate or lanthanum nitrate has been added. The high accuracy and sensitivity of the experimental setup enables us to perform measurements at extremely low polymer and salt concentrations. It was found that increasing the charge of the cation from monovalent (Na⁺) to divalent (Mg²⁺) and trivalent (La³⁺) shifts the maximum position of the reduced viscosity toward higher polymer concentrations and decreases the absolute value of the reduced viscosity. A good agreement between experimental findings and theoretical predictions was obtained.

Original language	English
Pages (from-to)	2356-2358
Number of pages	3
Journal	Macromolecules
Volume	22
Issue number	5
DOIs	https://doi.org/10.1021/ma00195a060
State	Published - 1 Sep 1989

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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title = "Viscosity of Dilute Polyelectrolyte Solutions: Concentration Dependence on Sodium Chloride, Magnesium Sulfate, and Lanthanum Nitrate",

abstract = "The reduced viscosity of polyelectrolyte solutions has been measured by using fully sulfonated sodium-neutralized polystyrene to which magnesium sulfate or lanthanum nitrate has been added. The high accuracy and sensitivity of the experimental setup enables us to perform measurements at extremely low polymer and salt concentrations. It was found that increasing the charge of the cation from monovalent (Na+) to divalent (Mg2+) and trivalent (La3+) shifts the maximum position of the reduced viscosity toward higher polymer concentrations and decreases the absolute value of the reduced viscosity. A good agreement between experimental findings and theoretical predictions was obtained.",

author = "J. Cohen and Z. Priel",

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AU - Priel, Z.

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Y1 - 1989/9/1

N2 - The reduced viscosity of polyelectrolyte solutions has been measured by using fully sulfonated sodium-neutralized polystyrene to which magnesium sulfate or lanthanum nitrate has been added. The high accuracy and sensitivity of the experimental setup enables us to perform measurements at extremely low polymer and salt concentrations. It was found that increasing the charge of the cation from monovalent (Na+) to divalent (Mg2+) and trivalent (La3+) shifts the maximum position of the reduced viscosity toward higher polymer concentrations and decreases the absolute value of the reduced viscosity. A good agreement between experimental findings and theoretical predictions was obtained.

AB - The reduced viscosity of polyelectrolyte solutions has been measured by using fully sulfonated sodium-neutralized polystyrene to which magnesium sulfate or lanthanum nitrate has been added. The high accuracy and sensitivity of the experimental setup enables us to perform measurements at extremely low polymer and salt concentrations. It was found that increasing the charge of the cation from monovalent (Na+) to divalent (Mg2+) and trivalent (La3+) shifts the maximum position of the reduced viscosity toward higher polymer concentrations and decreases the absolute value of the reduced viscosity. A good agreement between experimental findings and theoretical predictions was obtained.

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IS - 5

ER -

Viscosity of Dilute Polyelectrolyte Solutions: Concentration Dependence on Sodium Chloride, Magnesium Sulfate, and Lanthanum Nitrate

Abstract

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