Self-assembled structures and chemical reactions in room-temperature ionic liquids

Current Opinion in Colloid and Interface Science

Volumn 12, Issue 3, 2007, Pages 129-137

  Hao, Jingcheng ^a   Zemb, Thomas ^b  

^a SHANDONG UNIVERSITY   (China)

^b CEA SACLAY   (France)

Author keywords

Emulsions; Interfacial reactivity; Micelles; Nanoparticles; Room temperature ionic liquids; Self assembly; Vesicles

Indexed keywords

MICELLES; MICROEMULSIONS; NANOPARTICLES; REACTION KINETICS; SELF ASSEMBLY; SURFACE REACTIONS;

AMPHIPHILIC ASSOCIATION; INTERFACIAL REACTIVITY; ROOM-TEMPERATURE IONIC LIQUIDS; VESICLES;

IONIC LIQUIDS;

AMPHOPHILE; IONIC LIQUID; NANOPARTICLE; SURFACTANT;

ANISOTROPY; CHEMICAL REACTION; CHEMICAL STRUCTURE; CRYSTAL STRUCTURE; LIQUID CRYSTAL; MEMBRANE VESICLE; MICELLE; MICROEMULSION; PARTICLE SIZE; REVIEW; SYNTHESIS;

EID: 34548122759     PISSN: 13590294     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.cocis.2006.11.004     Document Type: Review

References (40)

1. Welton T. Room-temperature ionic liquids: solvents for synthesis and catalysis. Chem Rev 9 (2005) 2071-2084. In the first review, the related preparation, handling, solvent properties of room temperature ionic liquids, chemical reactions including organic reactions and transition-metal-mediated catalysis, etc. are summarized. In the second review physical chemistry and solvent properties of RTIL's are critically reviewed.
2. Handy S.T. Current organic chemistry 9 (2005) 959-988. In the first review, the related preparation, handling, solvent properties of room temperature ionic liquids, chemical reactions including organic reactions and transition-metal-mediated catalysis, etc. are summarized. In the second review physical chemistry and solvent properties of RTIL's are critically reviewed.
3. Dubois M., and Zemb Th. Phase behavior and scattering of double-chain surfactants in diluted aqueous solutions. Langmuir 7 (1991) 1352-1360
4. Dubois M., and Zemb Th. Swelling limits for bilayer microstructures: the implosion of lamellar structure versus disordered lamellae. Curr Opin Colloid Interface Sci 5 (2000) 27-37
5. Evans D.F., Yamauchi A., Roman R., and Casassa E.Z. Micelle formation in ethylammonium nitrate, a low-melting fused salt. J Colloid Interface Sci 88 (1982) 89-96
6. Evans D.F., Yamauchi A., Wei G., and Bloomfield V.A. Micelle size in ethylammonium nitrate as determined by classical and quasi-elastic light scattering. J Phys Chem 87 (1983) 3537-3541
7. Evans D.F., Kaler E.W., and Benton W.J. Liquid crystals in a fused salt: .beta., .gamma.-distearoylphosphatidylcholine in N-ethylammonium nitrate. J Phys Chem 87 (1983) 533-535
8. Tamura-Lis W., Lis L.J., and Quinn P.J. Structures and mechanisms of lipid phase transitions in nonaqueous media: dipalmitoylphosphatidylcholine in fused salt. J Phys Chem 91 (1987) 4625-4627
9. Tamura-Lis W., Lis L.J., and Quinn P.J. Structures and mechanisms of lipid phase transitions in nonaqueous media. Dipalmitoylphosphatidylethanolamine in fused salt. Biophys J 53 (1988) 489-492
10. Evans D.F., Chen S.H., Schryver G.W., and Arnett E.M. Thermodynamics of solution of nonpolar gases in a fused salt. Hydrophobic bonding behavior in a nonaqueous system. J Am Chem Soc 103 (1981) 481-482
11. In: Hyde S., Andersson S., Larsson K., Blum Z., Landh R., Lidin S., et al. (Eds). The language of shape: the role of curvature in condensed matter: physics (1997), Chemistry and Biology, Elsevier, Oxford. The classical text about self-assembly and packing constraints.
12. Chevalier Y., and Zemb Th. The structure of micelles and microemulsions. Rep Prog Phys 53 (1990) 279-371
13. Zemb Th. The DOC model of microemulsions: microstructure, scattering, conductivity and phase limits imposed by sterical constraints. Colloid Surf A, Physicochem Eng Asp 129,130 (1997) 435-454
14. Fogden A., Hyde S.T., and Lundberg G. Bending energy of surfactant films. J Chem Soc Faraday Trans 87 (1991) 949-955. The phenomenological theory of the bending energy in a surfactant membrane is analyzed and extended to account for the case of spontaneously curved membranes in this paper.
15. Safran S.A. Statistical thermodynamics of soft surfaces. Surf Sci 500 (2002) 127-146
16. Anderson J.L., Pino V., Hagberg E.C., Sheares V.V., and Armstrong D.W. Surfactant solvent effects and micelle formation in ionic liquids. Chem Commun (2003) 2444-24445. The formation of micelles of different surfactants in 1-butyl-3-methyl imidazolium chloride and hexafluorophosphate, are described.
17. See standard textbooks such as D. F. Evans et H Wennerstroem, "The colloidal domain" or Lindman B, Wennerstroem H: Micelles. Amphiphile aggregation in aqueous solution. Topics in current chemistry 1980;87:1-87.
18. Patrascu C., Gauffre F., Nallet F., Bordes R., Oberdisse J., de Lauth-Vigerie N., et al. Micelles in ionic liquids: aggregation behavior of alkyl poly(ethyleneglycol)-ethers in 1-butyl-3-methyl-imidazolium type ionic liquids. Chem Phys Chem (2006) 10.1002/cphc.200500419
19. Nakashima T., and Kimizuka N. Vesicle in salt: formation of bilayer membranes from diakyldimethylammonium bromides in ether-containing ionic liquids. Chem Lett (2002) 1018-1019
20. Hao J., Song A., Wang J., Chen X., Zhuang W., Shi F., Zhou F., et al. Self-assembled structure in room-temperature ionic liquids. Chem Eur J 11 (2005) 3936-3940
21. Merrigan T.L., Bates E.D., Dorman S.C., and Davis J.H. New fluorous ionic liquids function as surfactants in conventional room-temperature ionic liquids. Chem Commun (2002) 2051-2052
22. Brotons G., Dubois M., Belloni L., Grillo I., Narayanan T., and Zemb T. The role of counterions on the elasticity of highly charged lamellar phases: a small-angle x-ray and neutron-scattering determination. J Chem Phys 123 (2005) 24704
23. Marcelja S. Hydration in electrical double layers. Nature 385 (1997) 689-690
24. Gao H., Li J., Han B., Chen W., Zhang J., Zhang R., et al. Microemulsions with ionic polar domains. Phys Chem Chem Phys 6 (2004) 2914-2916. Phase behavior, conductivity and dynamic light scattering measurements, FF-TEM images were performed to characterize the microemulsions with the ionic liquid as the dispersed phase.
25. Eastoe J., Gold S., Rogers S.E., Paul A., Welton T., Heenan R.K., et al. Ionic liquid-in-oil microemulsions. J Am Chem Soc 127 (2005) 7302-7303. SANS experiments were carried out for determining the ionic liquid-in-oil microemulsions, which clearly demonstrated the formation of surfactant-stabilized dispersed nanodroplets with IL cores.
26. 6], were characterized by SAXS measurements. The phase transition with comparison of component and temperature was determined.
27. m (n = 16 and 18, m = 6)/EAN systems were determined using the serial dilution technique. This is the first observation of phase behavior for differently lyotropic liquid crystalline phases in ionic liquids.
28. Araos MU, Warr GG. Structure of nonionic surfactant micelles in ethylammonium nitrate. (submitted for publication).
29. Atkin R, Warr GG. Phase Behaviour and Microstructure of Microemulsions with a Room Temperature Ionic Liquid as the Polar Phase (in preparation).
30. Zemb T. The DOC model of microemulsions: microstructure, scattering, conductivity and phase limits imposed by sterical constraints. Colloids Surf A Physicochem Eng Asp 129-130 (1997) 435-454
31. Barnes I.S., Derian P.J., Hyde S.T., Ninham B.W., and Zemb Th. A disordered lamellar structure in the isotropic phase of a ternary double-chain surfactant system. J Phys Fr 51 (1990) 2605-2628
32. Antonietti M., Kuang D., Smarsly B., and Zhou Y. Ionic liquids for the convenient synthesis of functional nanoparticles and other inorganic nanostructures. Angew Chem Int Ed 43 (2004) 4988-4992
33. Osseo-Asare K., and Arriagada F.J. Growth kinetics of nanosize silica in a nonionic water-in-oil microemulsion: a reverse micellar pseudophase reaction model. J Colloid Interface Sci 218 (1999) 68-76
34. 4 was described, which should be widely applied to the design of smart organic/inorganic hybrid nanometer materials.
35. Eicke H.F., and Christen H. Nucleation process of micelle formation in apolar solvent. J Colloid Interface Sci 48 (1974) 281-290. In his now classical work, Eicke has demonstrated that aggregation of any surfactant in oil critically depends on the presence or absence of low amounts of water. From this very general work, an effect of residual water on the self-assembly in RT-ILs is expected.
36. Eicke H.F., Shepherd J.C.W., and Steinemann A. Exchange of solubilized water and aqueous electrolyte solutions between micelles in apolar media. J Colloid Interface Sci 56 (1976) 168-176. In his now classical work, Eicke has demonstrated that aggregation of any surfactant in oil critically depends on the presence or absence of low amounts of water. From this very general work, an effect of residual water on the self-assembly in RT-ILs is expected.
37. Eicke H.F. Surfactants in nonpolar solvents. Aggregation and micellization. Top Curr Chem 87 (1980) 85-145. In his now classical work, Eicke has demonstrated that aggregation of any surfactant in oil critically depends on the presence or absence of low amounts of water. From this very general work, an effect of residual water on the self-assembly in RT-ILs is expected.
38. Thomaier S., and Kun W. Aggregates in mixtures of ionic liquids. J Mol Liq 130 1-3 (2007) 104-107
39. Nave S., Mandin C., Martinet L., Berthon L., Testard F., and Madic C. Supramolecular organisation of tri-n-butyl phosphate in organic diluent on approaching third phase transition. Phys Chem Chem Phys 6 4 (2004) 799-808. This paper shows on the example of tributyl phosphate that aggregation in the form of reverse micelles able to receive ions extracted from aqueous medium above a certain concentration both enhances liquid-liquid extraction efficiency as well as formation of WInsor III esquilibria observed in quaternary oil-water-extractant and salt systems.
40. Billard I. (CNRS Strasbourg, France), private communication.