Abstract
The kinetics of aging processes in emulsions of undecane and dodecane stabilized by a surfactant is studied by dynamic light scattering (DLS) and fiber-optics dynamic light scattering (FODLS). It appears that whereas DLS requires extremely diluted clear samples (volume fraction typically 2×10−4) to follow the aging process, FODLS allows to monitor the aging in concentrated (volume fraction 0.2) and extremely turbid emulsions. Quantitative agreement between FODLS and DLS is however only obtained when the aging is followed by FODLS on moderately diluted (volume fraction 0.01) emulsions. For more concentrated emulsions quantitative results from FODLS measurements on undiluted emulsions can only be obtained if prior knowledge about the effect of particle interaction on the measured diffusion coefficient is available. The observed variation of the ripening rates with the alkane volume fraction is in agreement with the theoretical predictions.
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References
Walstra P (1983) In: Becher (ed) Encyclopedia of Emulsion Technology, Vol 1, pp 57–127 Marcel Dekker, New York
Tadros T, Vincent B (1983) In: Becher (ed) Encyclopedia of Emulsion Technology. Vol 1. Marcel Dekker, New York, pp 129–285.
See Kabalnov A, Shchukin ED (1992) Adv. Colloid Interface Sci 69–97
Kabalnov A (1994) Langmuir 10:680–684
Taylor P, Ottewill R (1994) Colloids and Surfaces A 88:303–316.
Voorhees P (1985) J Stat Phys 38:231–252
Marqusee J, Ross J (1983) J Chem Phys 80:536–543
Moreels E, De Ceuninck W, Finsy R (1987) J Chem Phys 86:618–623
Bremer L, Deriemaeker E, Finsy R, Geladé E, Joosten J (1993) Langmuir 9:2008–2014
Finsy R, De Groen P, Deriemaeker E, Geladé L, Joosten J (1992) Part Part Syst Charact 9:237–251
Hayduk W, Laudie H (1974) AIChE J 20:611
Kabalnov AS, Makarov KN, Pertzov AV, Shchukin ED (1990) J Colloid Interface Sci 138:98–104
Finsy R (1990) Part Part Syst Charact 7:74
Finsy R, Devriese A, Eekkerkerker H (1980) JCS Faraday-2 76:767
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© 1997 Steinkopff Verlag
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De Smet, Y., Malfait, J., De Vos, C., Deriemaeker, L., Finsy, R. (1997). Ostwald ripening of concentrated alkane emulsions: a comparison of fiber-optics dynamic light scattering and conventional dynamic light scattering. In: Rosenholm, J.B., Lindman, B., Stenius, P. (eds) Trends in Colloid and Interface Science XI. Progress in Colloid & Polymer Science, vol 105. Steinkopff. https://doi.org/10.1007/BFb0110996
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DOI: https://doi.org/10.1007/BFb0110996
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