Polymer-surfactant interactions: Binding mechanism of sodium dodecyl sulfate to poly(diallyldimethylammonium chloride)

Gilat Nizri; Serge Lagerge; Alexander Kamyshny; Dan T. Major; Shlomo Magdassi

doi:10.1016/j.jcis.2008.01.016

Polymer-surfactant interactions: Binding mechanism of sodium dodecyl sulfate to poly(diallyldimethylammonium chloride)

Gilat Nizri, Serge Lagerge, Alexander Kamyshny, Dan T. Major, Shlomo Magdassi^*

^*Corresponding author for this work

Institute of Chemistry

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

104 Scopus citations

Abstract

The binding mechanism of poly(diallyldimethylammonium chloride), PDAC, and sodium dodecyl sulfate, SDS, has been comprehensively studied by combining binding isotherms data with microcalorimetry, zeta potential, and conductivity measurements, as well as ab initio quantum mechanical calculations. The obtained results demonstrate that surfactant-polymer interaction is governed by both electrostatic and hydrophobic interactions, and is cooperative in the presence of salt. This binding results in the formation of nanoparticles, which are positively or negatively charged depending on the molar ratio of surfactant to PDAC monomeric units. From microcalorimetry data it was concluded that the exothermic character of the interaction diminishes with the increase in the surfactant/polymer ratio as well as with an increase in electrolyte concentration.

Original language	English
Pages (from-to)	74-81
Number of pages	8
Journal	Journal of Colloid and Interface Science
Volume	320
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2008.01.016
State	Published - 1 Apr 2008

Bibliographical note

Funding Information:
This project was supported by the European Community Sixth Framework Program through the NACBO Consortium, Contract No.500804-2, and by the MAGNET program (project NFM) of the Israel ministry of industry.

Keywords

Binding isotherms
Cooperative binding
Microcalorimetry
Molar conductivity
Polyelectrolyte-surfactant interaction

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title = "Polymer-surfactant interactions: Binding mechanism of sodium dodecyl sulfate to poly(diallyldimethylammonium chloride)",

abstract = "The binding mechanism of poly(diallyldimethylammonium chloride), PDAC, and sodium dodecyl sulfate, SDS, has been comprehensively studied by combining binding isotherms data with microcalorimetry, zeta potential, and conductivity measurements, as well as ab initio quantum mechanical calculations. The obtained results demonstrate that surfactant-polymer interaction is governed by both electrostatic and hydrophobic interactions, and is cooperative in the presence of salt. This binding results in the formation of nanoparticles, which are positively or negatively charged depending on the molar ratio of surfactant to PDAC monomeric units. From microcalorimetry data it was concluded that the exothermic character of the interaction diminishes with the increase in the surfactant/polymer ratio as well as with an increase in electrolyte concentration.",

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author = "Gilat Nizri and Serge Lagerge and Alexander Kamyshny and Major, {Dan T.} and Shlomo Magdassi",

note = "Funding Information: This project was supported by the European Community Sixth Framework Program through the NACBO Consortium, Contract No.500804-2, and by the MAGNET program (project NFM) of the Israel ministry of industry. ",

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AU - Lagerge, Serge

AU - Kamyshny, Alexander

AU - Major, Dan T.

AU - Magdassi, Shlomo

N1 - Funding Information: This project was supported by the European Community Sixth Framework Program through the NACBO Consortium, Contract No.500804-2, and by the MAGNET program (project NFM) of the Israel ministry of industry.

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KW - Cooperative binding

KW - Microcalorimetry

KW - Molar conductivity

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Polymer-surfactant interactions: Binding mechanism of sodium dodecyl sulfate to poly(diallyldimethylammonium chloride)

Abstract

Bibliographical note

Keywords

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