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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
ISSN
2196-7156
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Volume 229, Issue 10-12

Issues

Ordering Phenomena in Surfactant Systems: From Micellar Solutions to Gel and Crystalline Phases

Holger Gibhardt
  • Institute for Physical Chemistry, Georg-August-University of Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany
  • Other articles by this author:
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/ Chandrashekara R. Haramagatti
  • Institute for Physical Chemistry, Georg-August-University of Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany
  • Research and Technology Centre, Asian Paints Limited, Plot No. C3-B/1, TTCMIDC Pawne, Thane-Belapur Road, Navi Mumbai-400705, India
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/ Ahmed Kh. Islamov
  • Frank Laboratory of Neutron Physics, Joint Institute for the Nuclear Research JINR, 141980 Dubna, Russia
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/ Oleksandr I. Ivankov
  • Frank Laboratory of Neutron Physics, Joint Institute for the Nuclear Research JINR, 141980 Dubna, Russia
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/ Alexander I. Kuklin
  • Frank Laboratory of Neutron Physics, Joint Institute for the Nuclear Research JINR, 141980 Dubna, Russia
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/ Götz Eckold
  • Corresponding author
  • Institute for Physical Chemistry, Georg-August-University of Göttingen, Tammannstr. 6, D-37077 Göttingen, Germany
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Published Online: 2015-06-26 | DOI: https://doi.org/10.1515/zpch-2015-0609

Abstract

The phase behavior of surfactant systems is investigated using alkyltrimethylammonium bromide surfactants with different alkyl chain lengths (dodecyl-, tetradecyl-, hexadecyl- and octadecyl) as model substances. The transitions between micellar solution, gel-phase and crystalline phase are characterized by the combination of Raman spectroscopy and small angle neutron scattering. It is demonstrated that in systems with small surfactant molecules the aqueous solution crystallizes directly on cooling to form hydrated crystals while an intermediate gel phase is observed in long chain systems. The cross-over is found for the hexadecyl-compound where the gel phase appears only at high concentrations.

Keywords: Surfactants; Gel Formation; Crystallization; Raman Spectroscopy; Small Angle Neutron Scattering; Ordering Phenomena

About the article

Accepted: 2015-06-07

Received: 2015-04-01

Published Online: 2015-06-26

Published in Print: 2015-10-28


Citation Information: Zeitschrift für Physikalische Chemie, Volume 229, Issue 10-12, Pages 1869–1885, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1515/zpch-2015-0609.

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