Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter April 2, 2013

Formation of Multilamellar Vesicles in the Systems of Decyltrimethylammonium hydroxides/2-hydroxy 1-carboxy-naphthoate and Octyltrimethylammonium hydroxides/2-hydroxy 1-carboxy-naphthoate

Bildung von multilamellaren Vesikeln in den Systemen Decyltrimethylammoniumhydroxid/2-Hydroxy-1-Carboxy-Naphthoat und Octyltrimethylammoniumhydroxid/2-Hydroxy-1-Carboxy-Naphthoat
  • R. Abdel-Rahem

Abstract

We have investigated the phase behavior and characterized the microstructure of the phases that result from mixing of alkyltrimethylammonium hydroxides CxTAOH (x = 10.8) with 2-hydroxy 1-carboxy-naphthoate. We compare the results of this work with the published one of alkyltrimethylammonium 2-hydroxy-1-carboxy-naphthoate (CxTA 2,1 HCN, x = 16.14 or 12) [2]. With increasing counter-ion surfactant ratio r we observed transition from the isotropic L1-phase to multilamellar vesicles (MLV) Lα-phase. The single phases are separated by a two phase L1/Lα region. The phases were characterized with FF-TEM, rheological and SANS measurements. For 100 mM solution of either C8TAOH/2,1 HNC or C10TAOH/2,1 HNC, both MLV phases behave like a weak gel and have a yield stress value. It is thus shown that it is possible to prepare viscoelastic surfactant solutions with a small yield stress value from single chain surfactants with decyl or octylchain.

Kurzfassung

Wir haben das Phasenverhalten untersucht und die Mikrostruktur der Phasen charakterisiert, die durch Mischung aus Alkyltrimethylammoniumhydroxid CxTAOH (x = 10,8) mit 2-Hydroxy-1-Carboxy-Naphthoat resultiert. Wir haben die Ergebnisse dieser Arbeit mit den bereits veröffentlichten von Alkyltrimethylammonium 2-Hydroxy-1-Carboxy-Naphthoat (CxTA 2,1 HCN, x = 16,14 or 12) verglichen [2]. Mit Erhöhung des Verhältnisses Gegenion/Tensidion r, beobachteten wir einen Übergang von der isotropen L1-Phase zur multilamellaren Vesikel (MLV) Lα-Phase. Die Einzelphasen sind durch eine Zweiphasenregion L1/Lα getrennt. Die Phasen wurden mittels FF-TEM, rheologischen and SANS-Messmethoden charakterisiert. Pro 100 mM Lösung von entweder C8TAOH/2,1 HNC oder C10TAOH/2,1 HNC verhalten sich beide MLV-Phasen wie ein weiches Gel und haben eine Fließgrenze. Dadurch wird gezeigt, dass es möglich ist, viskoelastische Tensidlösungen mit geringer Fließgrenze aus Einzelketten-Tensiden mit Decyl- oder Octylketten darzustellen.


Dr. Rami Abdel-Rahem, Al Ahsa Teachers College, Qatar street, P.O. Box 2313, Al Hafouf 31982, Al-Ahsa, Kingdom of Saudi Arabia. E-mail:

Dr. Rami Abdel-Rahem was born in 1974 (in As Sarih-Jordan), studied applied chemistry at Jordan University of Science and Technology. He obtained his PhD in 2003 from Bayreuth University (Germany) under supervision of Prof. Dr. Heinz Hoffmann. From 2003 until 2005, he worked as a lecturer of physical chemistry at the university of Al-Margeb (Libya). Since 2005, he has been an assistant professor of physical chemistry at Al Ahsa Teachers College (Kingdom of Saudi Arabia). Areas of interest are phase behaviour, rheology and physical properties of surfactants.


References

1.Abdel-Rahem, R., Gradzielski, M. and HoffmannH.: J. Colloid Interface Sci.288(2005)570. 10.1016/j.jcis.2005.03.040Search in Google Scholar

2.Abdel-Rahem, R. and Hoffmann, H.: J. Colloid Interface Sci. in press.Search in Google Scholar

3.Abdel-Rahem, R. and Hoffmann, H.: Rheologica Acta45(2006)781. 10.1007/s00397-006-0101-7Search in Google Scholar

4.Abdel-Rahem, R.: Tenside Surf. Det.42(2005)95.10.3139/113.100241Search in Google Scholar

5.Horbaschek, K., Hoffmann, H. and Thunig, C.: J. Colloid Interface Sci.206(1998)439. 10.1006/jcis.1998.5690Search in Google Scholar

6.Wrence, M.: Eur. J. Drug Metab. Pharmacokinet.3(1994)257.10.1007/BF03188929Search in Google Scholar

7.Rosoff, M.: Vesicles, Surfactant Sci. Ser., vol. 62, Dekker, New York, 1996.Search in Google Scholar

8.Jung, M.: Ph.D. thesis, Technische Universiteit Eindhoven (2000).Search in Google Scholar

9.Lukac, S. and Harbour, J.: Can. J. Chem. Soc.3(1982)154.10.1039/c39820000154Search in Google Scholar

10.Isralelachvili, J., Mitchell, D. and Ninham, B.: J. Chem. Soc. Faraday Trans II.72(1976)1525. 10.1039/f29767201525Search in Google Scholar

11.Hoffmann, H., Thunig, C., Schmiedel, P., Munkert, U. and Ulbricht, W.: Tenside Surf. Det.31(1994)389.10.1515/tsd-1994-310612Search in Google Scholar

12.Hoffmann, H., Nüsslein, H. and Ulbricht, W.: Micellization, Solubilization and Microemulsion1(1977)263. 10.1007/978-1-4684-2346-4Search in Google Scholar

13.Helfrich, W.: Phys. Lett., A43(1973)409. 10.1016/0375-9601(73)90396-4Search in Google Scholar

14.Valiente, M., Thunig, C., Munkert, U., Lenz, U. and Hoffmann, H.: J. Colloid Interface Sci.160(1993)39. 10.1006/jcis.1993.1365Search in Google Scholar

15.Hoffmann, H., Thunig, C., Schmeidel, P. and Munkert, V.: Langmuir11(1994)3972. 10.1021/la00023a013Search in Google Scholar

16.Hoffmann, H., Gräbner, D., Hornfeck, U. and Platz, G.: J. Phys. Chem. B4(1999)611. 10.1021/jp983348dSearch in Google Scholar

17.Bergmeier, M., Gradzielski, M. and Hoffmann, H.: J. Phys. Chem. B16(1998)2837. 10.1021/jp9734484Search in Google Scholar

18.Hao, J., Liu, W. and Hoffmann, H.: Langmuir19(2003)635. 10.1021/la030065qSearch in Google Scholar

19.Haas, S., Hoffmann, H., Thunig, C. and Hoinkis, E.: Colloid Polym. Sci.277(1999)865. 10.1007/s003960050462Search in Google Scholar

20.Esumi, K. and Ueno, M.: Structure-Performance Relationship in Surfactants, Dekker, New York, 1997, p. 285.Search in Google Scholar

21.Hoffmann, H., Thunig, C., Schmeidel, P., Munkert, V. and Ulbricht, W.: Tenside Surf. Det.31(1994)389.10.1515/tsd-1994-310612Search in Google Scholar

22.Németh, Z., Halász, L., Pálinkás, J., Bóta, A. and Horányi, T.: Colloids Surf. Physicochem. Eng. Aspects145(1998)107. 10.1016/S0927-7757(98)00576-7Search in Google Scholar

23.Hoffmann, H. and Ulbricht, W.: Tenside Surf. Det.35(1998)6.Search in Google Scholar

24.Hoffmann, H. and Ulbricht, W.: Recent Res. Devel. in Physical Chem.2(1998).Search in Google Scholar

25.Nilsson, S., Thuresson, K., Hansson, P. and Lindman, B.: J. Phys. Chem. B102(1998)7099. 10.1021/jp9812379Search in Google Scholar

Received: 2007-02-04
Published Online: 2013-04-02
Published in Print: 2007-06-01

© 2007, Carl Hanser Publisher, Munich

Downloaded on 24.2.2024 from https://www.degruyter.com/document/doi/10.3139/113.100337/pdf
Scroll to top button