Switchable surfactants

Science

Volumn 313, Issue 5789, 2006, Pages 958-960

  Liu, Yingxin ^a   Jessop, Philip G ^a   Cunningham, Michael ^a   Eckert, Charles A ^b   Liotta, Charles L ^b  

^a QUEEN S UNIVERSITY   (Canada)

^b GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARGON; CARBON DIOXIDE; DEMULSIFICATION; EMULSIONS; NITROGEN; ORGANIC COMPOUNDS; POLYMERIZATION;

ALKANE EMULSION; CRUDE OIL EMULSION; DEMULSIFIER; MICROSUSPENSION POLYMERIZATION;

SURFACE ACTIVE AGENTS;

ALKANE; AMIDINE; ARGON; BICARBONATE; CARBON DIOXIDE; NITROGEN; PETROLEUM; STYRENE; SURFACTANT; WATER;

ARGON; CARBON DIOXIDE; EMULSION; INDUSTRIAL PRODUCTION; NITROGEN; POLYMERIZATION; STABILIZATION; SURFACTANT;

AQUEOUS SOLUTION; ARTICLE; CHEMICAL MODIFICATION; EMULSION; POLYMERIZATION; PRIORITY JOURNAL; REACTION ANALYSIS; SUSPENSION;

EID: 33747587267     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1128142     Document Type: Article

References (27)

1. B. M. Yaghi, A. Al-Bemani, Energy Sources 24, 93 (2002).
2. D. Langevin, S. Poteau, I. Henaut, J. F. Argillier, Oil Gas Sci. Technol. 59, 511 (2004).
3. T. Austad, J. Milter, in Surfactants: Fundamentals and Applications in the Petroleum Industry, L. L. Schramm, Ed. (Cambridge Univ. Press, Cambridge, 2000), pp. 203-249.
4. L. L. Schramm, S. M. Kutay, in Surfactants: Fundamentals and Applications in the Petroleum Industry, L. L. Schramm, Ed. (Cambridge Univ. Press, Cambridge, 2000), pp. 79-120.
5. J. Masliyah, Z. Zhou, Z. Xu, J. Czarnecki, H. Hamza, Can. J. Chem. Eng. 82, 628 (2004).
6. R. Y. Lochhead, W. J. Hemker, J. Y. Castaneda, Soap, Cosmet., Chem. Spec. 63, 28 (1987).
7. K. Holmberg, in Reactions and Synthesis in Surfactant Systems, J. Texter, Ed. (Dekker, New York, 2001), pp. 45-58.
8. T. Saji, K. Hoshino, S. Aoyagui, J. Am. Chem. Soc. 107, 6865 (1985).
9. P. Anton, P. Koeberle, A. Laschewsky, Prog. Colloid Polym. Sci. 89, 56 (1992).
10. P. Anton, A. Laschewsky, M. D. Ward, Polym. Bull. (Berlin) 34, 331 (1995).
11. H. Sakai, M. Abe, in Mixed Surfactant Systems, M. Abe, J. F. Scamehorn, Eds. (Dekker, New York, 2005), pp. 507-543.
12. M. M. Schmittel et al., Chem. Commun. 2005, 5650 (2005).
13. S. S. Datwani, V. N. Truskett, C. A. Rosslee, N. L. Abbott, K. J. Siebe, Langmuir 19, 8292 (2003).
14. N. Aydogan, N. L. Abbott, Langmuir 17, 5703 (2001).
15. D. J. Heldebrant, P. G. Jessop, C. A. Thomas, C. A. Eckert, C. L. Liotta, J. Org. Chem. 70, 5335 (2005).
16. P. G. Jessop, D. J. Heldebrant, L. Xiaowang, C. A. Eckert, C. L. Liotta, Nature 436, 1102 (2005).
17. Materials and methods are available as supporting material on Science Online.
18. S. Poteau, J.-F. Argillier, D. Langevin, F. Pincet, E. Perez, Energy Fuels 19, 1337 (2005).
19. S. Acevedo, B. Borges, F. Quintero, V. Piscitelly, L. B. Gutierrez, Energy Fuels 19, 1948 (2005).
20. 2, and only partial separation after 1 day for the experiment with amidine under argon. Amidine 1b was less effective than 1a as a demulsifier; the light crude oil/water mixture separated only after 3.5 hours.
21. M. De Groote, B. Keiser, Surface-active compounds containing imidazolihe rings, U.S. Patent 2,574,537, 1951.
22. M. F. Cunningham, H. K. Mahabadi, H. M. Wright, J. Polym. Sci. Polym. Chem. 38, 345 (2000).
23. M. F. Cunningham, Polym. React. Eng. 7, 231 (1999).
24. R. M. Fitch, Polymer Colloids (Academic Press, San Diego, 1997), pp. 173-225.
25. D. Urban, B. Schuler, J. Schmidt-Thümmes, in Chemistry and Technology of Emulsion Polymerisation, A. M. v. Herk, Ed. (Blackwell, Oxford, 2005), pp. 226-256.
26. The rates of, and minimum times required for, the conversion of 1 to 2, the conversion of 2 to 1, and the transport of the surfactant to the liquid-liquid interface have not yet been quantified.
27. We thank Shell and Imperial Oil for gifts of crude oil, and the Canada Research Chair program and the Natural Sciences and Engineering Research Council of Canada for funding the work.