Abstract
We studied the influence of molecular structural elements of alkyl polyglycoside (APG) surfactants on the interfacial tension (IFT) in aqueous formulations against n-octane. This included the analysis of alkyl and aryl chain length, type and number of sugar-ring head, anomers, addition of cosolvents and effect of salt addition. We found that longer alkyl or aryl chains lead to lower IFT, consistent with data recorded for commercial (mixed) APGs. APGs with only one sugar-ring head had lower IFT than their analog maltose derivates (two-ring head). Intriguingly the stereochemistry of the sugar head (i.e. galactose versus glucose) and the type of anomer showed a significant influence on IFT. The n-octyl-α-D-glucopyranoside anomer had a lower IFT than the corresponding β-anomer. 1-octanol and 1-hexanol were efficient cosolvents consistent with the datasets observed for commercial APGs. Salt addition reduced IFT. Functional groups (aldehyde, amide-methoxy) integrated into the molecular architecture of the APG skeleton were efficient in terms of significantly reducing IFT, suggesting a strategy for the molecular design of advanced APG surfactants. We discuss the results in the context of the hydrophilic-lipophilic deviation (HLD) concept, which we modified so that IFT values are discussed instead of phase behavior.
Kurzfassung
Wir untersuchten den Einfluss molekularer Strukturelemente von Alkylpolyglucosiden (APG) auf die Grenzflächenspannung (IFT) von wässrigen Formulierungen gegenüber n-Oktan. Dies schloss die Analyse der Alkyl- und der Arylkettenlänge, den Typ und die Anzahl der Zucker-Kopfgruppen, Anomere, die Zugabe von Ko-Lösungsmitteln und den Effekt von Salzzugabe ein. Wir fanden in Übereinstimmung mit den Daten für kommerzielle APG (-Mischungen), dass mit längerer Alkyl- oder Arylkettenlänge die IFT abnimmt. APGs mit nur einer Zucker-Kopfgruppe wiesen eine niedrigere IFT auf als die analogen Maltosederivate (mit 2 Zuckerringen als Kopfgruppe). Die Stereochemie der Zucker-Kopfgruppe (z.B. Galaktose im Vergleich zu Glucose) und der Typ des Anomers zeigten einen signifikanten Einfluss auf die IFT. Das n-Octyl-α-D-Glucopyranoseanomer senkte die IFT stärker als das analoge β-Anomer. 1-Oktanol und 1-Hexanol waren wirksame Ko-Lösungsmittel; dies ist konsistent mit Daten für kommerzielle APGs. Die Zugabe von Salzen reduzierte die IFT. Funktionale Gruppen (Aldehyde, Amid-Methoxy) in der APG-Molekülarchitektur konnten die IFT signifikant senken. Dies eröffnet neue Moleküldesignstrategien zur Entwicklung verbesserter APG-Formulierungen. Wir diskutieren unsere Ergebnisse im Zusammenhang mit dem Konzept der hydrophilen-lipophilen Abweichung (HLD), das wir so modifizierten, dass wir IFT-Werte anstatt des Phasenverhaltens analysieren.
References
1. Balzer, D.: Process for the extraction of crude oil from an underground deposit using surfactants. U.S. Patent 4,985,154, 1991.Search in Google Scholar
2. Balzer, D. and Lüders, H. (editors): Nonionic Surfactants, Alkyl Polyglycosides, Surfactant Science Series, 91, New York: Marcel Dekker, 2000.Search in Google Scholar
3. Iglauer, S., Wu, Y., Shuler, P. J., Tang, Y. and Goddard, W. A.: Alkyl Polyglycoside Surfactant-Alcohol Cosolvent Formulations for Improved Oil Recovery, Colloids and Surfaces A: Physicochemical and Engineering Aspects.339 (2009) 48–59. 10.1016/j.colsurfa.2009.01.015Search in Google Scholar
4. Hill, K., von Rybinski, W. and Stoll, G. (editors): Alkyl Polyglucosides, Weinheim: VCH, 1997, ISBN: 9783527294510.10.1002/9783527614691Search in Google Scholar
5. Garst, R.: Alkyl Polyglycosides – New Solutions for Agricultural Applications, in: Alkyl Polyglycosides (editors: Hill, von Rybinski, Stoll), Weinheim: VCH, 1997.Search in Google Scholar
6. Pakpayat, N., Nielloud, F., Fortune, R., Tourne-Peteilh, Villareal, A., Grillo, I. and Bataille, B.: Formulation of ascorbic acid microemulsions with alkyl polyglycosides, European Journal of Pharmaceutics and Biopharmaceutics72 (2009) 444–452. 10.1016/j.ejpb.2009.01.005Search in Google Scholar
7. Fischer, E.et al.: Chem. Ber.26 (1893) 2400. 10.1002/cber.18930260327Search in Google Scholar
8. Fischer, E.et al.: Lieb. Ann.68 (1911) 383.Search in Google Scholar
9. Waldhoffet al.: in: Hill, K., von Rybinski, W., Stoll, G. (editors): Alkyl Polyglucosides, Weinheim: VCH, 1997, ISBN: 9783527294510.Search in Google Scholar
10. Peypoux, F., Bonmatin, J. M. and Wallach, J.: Recent trends in the biochemistry of surfactin, Appl. Microbiol. Biotechnol.51 (1999) 553–563. 10.1007/s002530051432Search in Google Scholar
11. Iglauer, S., Wu, Y., Shuler, P. J., Blanco, M., Tang, Y. and GoddardIII, W. A.: Alkylpolyglycoside Surfactants for Improved Oil Recovery, SPE/DOE 89472, proceedings of the SPE/DOE Improved Oil Recovery Symposium, Tulsa, OK, April 17–21, 2004.10.2118/89472-MSSearch in Google Scholar
12. Iglauer, S., Wu, Y., Shuler, P. J., Tang, Y., Blanco, M. and Goddard, W. A.: The influence of Alcohol Co-surfactants on the Interfacial Tensions of Alkylglycoside Surfactant Formulations vs. n-Octane, proceedings of the ACS 227th National Meeting, Division of Petroleum Chemistry, Anaheim, CA, USA, 2004.Search in Google Scholar
13. Wu, Y., Iglauer, S., Shuler, P. J., Tang, Y., Blanco, M. and Goddard, W. A.: Synergistic Effect of Alkyl Polyglycoside and Sorbitan Mixtures on Lowering Interfacial Tension and Enhancing Oil Recovery, proceedings of the ACS 227th National Meeting, Division of Petroleum Chemistry, Anaheim, CA, USA, 2004.Search in Google Scholar
14. Goddard, W. A., Tang, Y., Shuler, P. J., Blanco, M., Jang, S. S., Lin, S. T., Maiti, P., Wu, Y., Iglauer, S. and Zhang, X.: Lower Cost Methods for Improved Oil Recovery (IOR) via Surfactant Flooding, DOE Project DE-FC 26-01BC15362, Final Report, September 2004.Search in Google Scholar
15. Balzer, D.: Alkylpolyglcosides, their Physico-chemical Properties and their Uses, Tenside Surf. Det.28 (6) (1991) 419–427.Search in Google Scholar
16. Bertsch, H. and Rauchalles, G.: U.S. Patent 2,049,758, 1934.Search in Google Scholar
17. Hill, K. and Rhode, O.: Sugar-based surfactants for consumer products and technical applications, Fett/Lipid25–33 (1999) 10.Search in Google Scholar
18. Kutschmann, E. M., Findenegg, G. H., Nickel, D. and von Rybinski, W.: Interfacial tension of alkylglucosides in different APG/oil/water systems, Colloid Polym. Sci.273 (1995) 565–571. 10.1007/BF00658686Search in Google Scholar
19. Förster, T., et al.: Physico-chemical basics of microemulsions with alkyl polyglycosides, Progr. Colloid Polym. Sci.101 (1996) 105–112. 10.1007/BFb0114432Search in Google Scholar
20. von Rybinski, W., Guckenbiehl, B. and Tesmann, H.: Influence of co-surfactants on microemulsions with alkyl polyglycosides, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 142 (1998) 333–342. 10.1016/S0927-7757(98)00527-5Search in Google Scholar
21. Tang, Y., Shuler, P. J., Wu, Y. and Iglauer, S.: Chemical System for Improved Oil Recovery, US-Patent Application 20060046948, 2006.Search in Google Scholar
22. Nickel, D., Förster, T. and von Rybinski, W.: Physicochemical Properties of Alkyl Polyglycosides, in: Alkyl Polyglycosides (editors: Hill, von Rybinski, Stoll), Weinheim: VCH, 1997.Search in Google Scholar
23. Kahl, H., Kirmse, K. and Quitzsch, K.: Grenzflächenspannungen in mehrphasigen Mischsystemen mit Alkylpolyglucosiden, Tenside, Surfactants, Detergents, 33(1) (1996) 26–32.Search in Google Scholar
24. Shinoda, K., Yamaguchi, T. and Hori, R.: Bull. Chem. Soc. Jpn.34 (1961) 237. 10.1246/bcsj.34.237Search in Google Scholar
25. Green, D.W. and Willhite, G. P.: Enhanced oil recovery, SPE Publications, 1998, ISBN: 978-1-55563-077-5.Search in Google Scholar
26. Abrams, A.: The Influence of Fluid Viscosity, Interfacial Tension, and Flow Velocity on Residual Oil Saturation left by Waterflood, SPEJ, 437–447 (1975).Search in Google Scholar
27. Plusquellec, D., Chevalier, G., Talibart, R. and Wroblewski, H.: Anal. Biochem.179 (1989) 145–153. 10.1016/0003-2697(89)90215-7Search in Google Scholar
28. Anatrace, Product Catalog, 5th Edition, February 2009.Search in Google Scholar
29. Cayias, J. L., Schechter, R. S. and Wade, W. H.: The Measurement of Low Interfacial Tension via the Spinning Drop Technique, section 17, Surfactant Applications, 1977.Search in Google Scholar
30. Kahlweit, M., Busse, G. and Faulhaber, B.: Preparing Microemulsions with Alkyl Monoglucosides and the Role of n-Alcohols, Langmuir11 (1995) 3382–3387. 10.1021/la00009a019Search in Google Scholar
31. Nardello, V., Chailloux, N., Poprawski, J., Salager, J.-L. and Aubry, J.-M.: HLD concept as a tool for the characterization of cosmetic hydrocarbon oils, Polymer International52 (2003) 602–609. 10.1002/pi.1012Search in Google Scholar
32. Bourrel, M. and Schechter, R. S.: Microemulsions and Related Systems: Formulation, Solvency, and Physical Properties, New York: Marcel Dekker, 1988.Search in Google Scholar
33. Bourrel, M., Salager, J. L., Schechter, R. S. and Wade, W. H.: A correlation for phase behaviour of non-ionic surfactants, Journal of Colloid and Interface Science2, 451–461 (1980) 75. 10.1016/0021-9797(80)90470-1Search in Google Scholar
34. Salager, J.-L., Marquez, N., Graciaa, A. and Lachaise, J.: Partitioning of ethoxylated octylphenol surfactants in microemulsion-oil-water systems: influence of temperature and relation between partitioning coefficient and physicochemical formulation, Langmuir16 (2000) 5534–5539. 10.1021/la9905517Search in Google Scholar
35. Witthayapanyanon, A., Harwell, J. H. and Sabatini, D. A.: Hydrophilic-lipophilic deviation (HLD) method for characterizing conventional and extended surfactants, Journal of Colloid and Interface Science325 (2008) 259–266. 10.1016/j.jcis.2008.05.061Search in Google Scholar
36. Graciaa, A., Barakat, Y., El-Emary, M., Fortney, l., Schechter, R. S, Yiv, S. and Wade, W. H.: HLB, CMC and phase behaviour as related to hydrophobe branching, Journal of Colloid and Interface Science89 (1) (1982) 209–216. 10.1016/0021-9797(82)90134-5Search in Google Scholar
37. Healy, R. N. and Reed, R. L.: Improved Oil Recovery by Surfactant and Polymer Flooding, New York: Academic Press, 1977.Search in Google Scholar
38. Shinoda, K. and Friberg, S.: Emulsion & Solubilization, New York, 1986.Search in Google Scholar
39. Shinoda, K.: Journal of Colloid and Interface Science4 (1976) 24.Search in Google Scholar
40. Karasawa, N., Dasgupta, S. and Goddard, W. A.: Mechanical-Properties and Force-Field Parameters for Polyethylene Crystal, Journal of Physical Chemistry, 95 (6) (1991) 2260–2272. 10.1021/j100159a031Search in Google Scholar
41. Kahlweit, M., Strey, R. and Busse, G.: Effect of Alcohols on the Phase Behavior of Microemulsions, Journal of Physical Chemistry95 (13) (1991) 5344–5352. 10.1021/j100166a077Search in Google Scholar
42. Mitchell, D. J. and Ninham, B. W.: Micelles, vesicles and microemulsions, Journal of the Chemical Society, Faraday Transactions vesicles and microemulsions, Journal of the Chemical Society, Faraday Transactions: Molecular and Chemical Physics77 (1981) 601–629.Search in Google Scholar
43. Strey, R. and Jonströmer, M.: Role of medium-Chain Alcohols in Interfacial Films of Nonionic Microemulaions, Journal of Physical Chemistry96 (1992) 4537–4542. 10.1021/j100190a075Search in Google Scholar
44. DeGennes, P. and Taupin, C.: Microemulsions and the flexibility of oil-water interfaces, Journal of Physical Chemistry86 (1982) 2294–2304. 10.1021/j100210a011Search in Google Scholar
45. Sabatini, D. A., Acosta, E. and Harwell, J. H.: Linker Molecules in Surfactant Mixtures, Current Opinion in Colloid and Interface Science8 (2003) 316–326. 10.1016/S1359-0294(03)00082-7Search in Google Scholar
46. Lide, D. R.: CRC Handbook of Chemistry & Physics, 87th Edition, Chemical Ruber Co., Ohio, 2007.Search in Google Scholar
© 2010, Carl Hanser Publisher, Munich