Abstract
Aerosol OT (AOT) exhibits a pronounced tendency towards reverse curvature, forming w/o droplets in the L 2 region of the phase diagram in the three-component water/cyclohexane/AOT system. The net curvature of the interfacial layer can be tuned by complexing AOT’s sodium ion with the cryptand Kryptofix 222 (Kr 222). With increasing Kryptofix, a structural evolution occurs from w/o droplets through a bicontinuous system to o/w droplets. This contribution focuses on the structural changes which occur in the L 2 phase upon addition of 0.25 equivalent of Kr 222. Results from PGSE 1H-FTNMR and static SANS measurements lead to the conclusion that the AOT droplets decrease in size and exhibit a significant increase in the droplet-droplet interaction when the Kr 222 is added.
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References
Evans DF, Sen R, Warr GG (1986) J Phys Chem 90:5500
Payne KA, Magid LJ, Evans DF (1987) Progr Colloid & Polymer Sci 73:10
Sauvage JP, Lehn JM (1975) J Am Chem Soc 97:6700
to be published
Saarinen TR, Woodward WS (1988) Rev Sci Instrum 59:761
Magid LJ (1986) Colloids and Surfaces 19:129
Shulz GV (1939) Z Phys Chem 43:25
Kotlarchyk M, Chen S-H (1983) J Chem Phys 79:2461
van Beurten P, Vrij A (1981) J Chem Phys 74:2744
Vrij A, de Kruif CG (1985) In: The Effects of Polydispersity on the Scattering Spectrum of Interacting Colloidal Particles, ACS National Meeting
Lindman B, Stilbs P, Moseley ME (1981) J Colloid Interface Sci 83:569
Stilbs P, Lindman B (1984) J Colloid Interface Sci 99:290
Langevin D (1988) Acc Chem Res 21:255
Kotlarchyk M, Chen S-H (1984) Phys Rev A 29:2054
Dichristina T, Roux D, Bellocq AM, Bothorel P (1985) J Phys Chem 89:1433
Nicholson JD, Clarke JHR (1984) In: Mittal KL, Lindman B (eds) Surfactants in Solution. Plenum Press, New York and London, Vol. 3, pp. 1663–1674
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© 1990 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG
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Magid, L.J., Weber, R., Leser, M.E., Farago, B. (1990). Control of curvature in microemulsions: The AOT/Krypotofix couple. In: Zulauf, M., Lindner, P., Terech, P. (eds) Trends in Colloid and Interface Science IV. Progress in Colloid & Polymer Science, vol 81. Steinkopff. https://doi.org/10.1007/BFb0115524
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DOI: https://doi.org/10.1007/BFb0115524
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