Summary
The structure of water in water/AOT/n-heptane reverse micelles has been studied as a function of the [H2O]/[AOT] ratio (W) by using the absorption IR due to O−H stretching modes in the 3800–3000 cm−1 range. The results show that the IR spectra can be expressed as a sum of contributions from bound- and bulk-like water. The fraction of water in the two «regions» within the water pool was evaluated as a function of W. The «bound» water region seems to hold 3.5 water molecules (corresponding to 7 O−H oscillators) per AOT molecule and its formation is nearly complete at W>6.
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References
H. F. Eicke: Top. Curr. Chem., 87, 85 (1980).
P. L. Luisi and L. J. Magid: CRC Crit. Rev. Biochem., 20, 409 (1986).
Y. Chevalier and T. Zemb: Rep. Prog. Phys., 53, 279 (1990).
H. Mac Donald, B. Bedwell and E. Gulari: Langmuir, 2, 704 (1986).
T. K. Jain, M. Varshney and A. Maitra: J. Phys. Chem., 93, 7409 (1989).
G. Onori, M. Ronca and A. Santucci: Prog. Colloid Polym. Sci., 84, 88 (1991).
G. Onori and A. Santucci: J. Phys. Chem., 97, 5430 (1993).
G. Onori and A. Santucci: J. Phys. Chem., 98, 3189 (1994).
G. Giammona, F. Goffredi, V. Turco Liveri and G. Vassallo: J. Colloid Interface Sci., 154, 411 (1992).
D. J. Christopher, J. Yarwood, P. S. Belton and B. P. Hills: J. Colloid Interface Sci., 152, 465 (1992).
M. J. Hou and D. O. Shah: Langmuir, 3, 1086 (1987).
D. W. Marquardt: SIAM, J. Appl. Math., 11, 431 (1963).
J. L. Green, A. R. Lacey and M. G. Seats: J. Phys. Chem., 90, 3958 (1986).
G. E. Walrafen: in Water: a Comprehensive Treatise, edited by F. Franks, Vol. 1 (Plenum, New York, N.Y., 1972), p. 151.
G. D’Arrigo, G. Maisano, F. Mallamace, P. Migliardo and F. Wanderling: J. Chem. Phys., 75, 4264 (1981).
W. A. P. Luck: in Water: a Comprehensive Treatise, edited by F. Franks, Vol. 2 (Plenum, New York, N.Y., 1973), p. 235.
T. L. Tso and E. K. C. Lee: J. Phys. Chem., 89, 1612 (1985).
P. A. Giguère and M. Pingeon-Grosselin: J. Raman Spectrosc., 17, 341 (1986).
D. Eisemberg and W. Kauzman: The Structure and Properties of Water (Oxford University Press, Oxford, 1969).
F. Franks, in Water: a Comprehensive Treatise, edited by F. Franks, Vol. 1 (Plenum, New York, N.Y., 1972), Chapt. 1.
A. Sokolowska and Z. Kecki: J. Raman. Spectrosc., 17, 29 (1986).
J. L. Green, A. R. Lacey and M. G. Seats: Chem. Phys. Lett., 130, 67 (1986).
G. R. Reimers and R. O. Watts: Chem. Phys., 91, 201 (1984).
H. Hauser, G. Haering, A. Pande and P. L. Luisi: J. Phys. Chem., 93, 7869 (1989).
A. Maitra: J. Phys. Chem., 58, 5122 (1984).
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D’Angelo, M., Onori, G. & Santucci, A. Structure of water-in-oil microemulsions of AOT by infrared spectroscopy. Nouv Cim D 16, 1601–1611 (1994). https://doi.org/10.1007/BF02462048
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DOI: https://doi.org/10.1007/BF02462048