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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus


IMPACT FACTOR 2018: 0.975
5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

Online
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2196-7156
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Volume 227, Issue 4

Issues

Surface Dilational Properties of Sodium 4-(1-methyl)-Alkyl Benzene Sulfonates: Effect of Alkyl Chain Length

Ji-Chao Zhang
  • Geological Scientific Research Institute of Shengli Oilfield co. Ltd, SINOPEC, Shandong, Volksrepublik China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Lan-Lei Guo
  • Geological Scientific Research Institute of Shengli Oilfield co. Ltd, SINOPEC, Shandong, Volksrepublik China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Lei Zhang
  • Chinese Academy of Science, Technical Institute of Physics ans Chemistry, 100190, Volksrepublik China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Lin-Fang Dong
  • Chinese Academy of Science, Technical Institute of Physics ans Chemistry, 100190, Volksrepublik China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Lu Zhang / Lan Luo
  • Chinese Academy of Science, Technical Institute of Physics ans Chemistry, 100190, Volksrepublik China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Sui Zhao
  • Chinese Academy of Science, Technical Institute of Physics ans Chemistry, 100190, Volksrepublik China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-03-25 | DOI: https://doi.org/10.1524/zpch.2013.0373

Abstract

The dilational properties of absorbed film of three sodium 4-(1-methyl)-alkyl benzene sulfonates at the air-water interface have been investigated by drop shape analysis method. The influences of time, dilational frequency and surfactant bulk concentration on surface dilational modulus and phase angle have been expounded. The nature of interfacial film depends on the molecular structure of surfactants. For 2Φ-14 and 2Φ-16, the diffusion-exchange process controls the dilational properties and the film shows viscoelastic character. As an increase of the hydrophobic chain, the dilational modulus of 2Φ-18 is independent on applied frequency in the studied bulk concentration except for 1 × 105 mol/L, which indicates the adsorbed layer behaves nearly purely elastic. Furthermore, the phase angle of 2Φ-14 and 2Φ-16 are remarkably higher than those of 2Φ-18, confirming that the presence of strong interactions between hydrophobic chains of 2Φ-18. Best agreements with the experimental data have been obtained from the curves of dilational modulus vs. surface pressure.

Keywords: Sodium 4-(1-methyl)-Alkyl Benzene Sulfonate; Dilational Modulus; Dilational Phase Angle; Surface Pressure; Surface Pressure

About the article

* Correspondence address: Chinese Academy of Science, Technical Institute of Physics ans Chemistry, Beijing 100190, Volksrepublik China,


Published Online: 2013-03-25

Published in Print: 2013-04-01


Citation Information: Zeitschrift für Physikalische Chemie, Volume 227, Issue 4, Pages 429–440, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2013.0373.

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