Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates

T. Stoebe; Zuxuan Lin; Randal M. Hill; Michael D. Ward; H. Ted Davis

doi:10.1021/la970702a

Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates

T. Stoebe, Zuxuan Lin, Randal M. Hill, Michael D. Ward, H. Ted Davis

Chemistry

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

Abstract

The spreading behavior of aqueous solutions containing the ethoxylated alcohol surfactants CH₃(CH₂)₉(OCH₂CH₂) ₃OH and CH₃(CH₂)₁₁(OCH₂)_n,-OH (n=3-6) on solid substrates has been investigated at different surfactant concentrations and substrate surface energies. The trends in the dynamic spreading behavior differ from those expected on the basis of the thermodynamic spreading coefficients calculated from static surface tensions. The data demonstrate that the spreading rates do not depend upon any identifiable aqueous phase surfactant microstructure. However, the spreading rate dependence upon the length of the hydrophilic poly(oxyethylene) chain suggests an interplay between surfactant adsorption on the substrate surface and the aggregation of this surfactant. The results suggest that the onset of turbidity, and an optimal surfactant hydrophilic/hydrophobic balance, are important for achieving high spreading rates.

Original language	English (US)
Pages (from-to)	7270-7275
Number of pages	6
Journal	Langmuir
Volume	13
Issue number	26
DOIs	https://doi.org/10.1021/la970702a
State	Published - Dec 24 1997

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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title = "Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates",

abstract = "The spreading behavior of aqueous solutions containing the ethoxylated alcohol surfactants CH3(CH2)9(OCH2CH2) 3OH and CH3(CH2)11(OCH2)n,-OH (n=3-6) on solid substrates has been investigated at different surfactant concentrations and substrate surface energies. The trends in the dynamic spreading behavior differ from those expected on the basis of the thermodynamic spreading coefficients calculated from static surface tensions. The data demonstrate that the spreading rates do not depend upon any identifiable aqueous phase surfactant microstructure. However, the spreading rate dependence upon the length of the hydrophilic poly(oxyethylene) chain suggests an interplay between surfactant adsorption on the substrate surface and the aggregation of this surfactant. The results suggest that the onset of turbidity, and an optimal surfactant hydrophilic/hydrophobic balance, are important for achieving high spreading rates.",

author = "T. Stoebe and Zuxuan Lin and Hill, {Randal M.} and Ward, {Michael D.} and Davis, {H. Ted}",

year = "1997",

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doi = "10.1021/la970702a",

language = "English (US)",

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issn = "0743-7463",

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T1 - Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates

AU - Stoebe, T.

AU - Lin, Zuxuan

AU - Hill, Randal M.

AU - Ward, Michael D.

AU - Davis, H. Ted

PY - 1997/12/24

Y1 - 1997/12/24

N2 - The spreading behavior of aqueous solutions containing the ethoxylated alcohol surfactants CH3(CH2)9(OCH2CH2) 3OH and CH3(CH2)11(OCH2)n,-OH (n=3-6) on solid substrates has been investigated at different surfactant concentrations and substrate surface energies. The trends in the dynamic spreading behavior differ from those expected on the basis of the thermodynamic spreading coefficients calculated from static surface tensions. The data demonstrate that the spreading rates do not depend upon any identifiable aqueous phase surfactant microstructure. However, the spreading rate dependence upon the length of the hydrophilic poly(oxyethylene) chain suggests an interplay between surfactant adsorption on the substrate surface and the aggregation of this surfactant. The results suggest that the onset of turbidity, and an optimal surfactant hydrophilic/hydrophobic balance, are important for achieving high spreading rates.

AB - The spreading behavior of aqueous solutions containing the ethoxylated alcohol surfactants CH3(CH2)9(OCH2CH2) 3OH and CH3(CH2)11(OCH2)n,-OH (n=3-6) on solid substrates has been investigated at different surfactant concentrations and substrate surface energies. The trends in the dynamic spreading behavior differ from those expected on the basis of the thermodynamic spreading coefficients calculated from static surface tensions. The data demonstrate that the spreading rates do not depend upon any identifiable aqueous phase surfactant microstructure. However, the spreading rate dependence upon the length of the hydrophilic poly(oxyethylene) chain suggests an interplay between surfactant adsorption on the substrate surface and the aggregation of this surfactant. The results suggest that the onset of turbidity, and an optimal surfactant hydrophilic/hydrophobic balance, are important for achieving high spreading rates.

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Enhanced spreading of aqueous films containing ethoxvlated alcohol surfactants on solid substrates

Abstract

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