Ostwald ripening in the transient regime: a cryo-TEM study

O. Y. De Smet; D. Danino; L. Deriemaeker; Y. Talmon; R. Finsy

doi:10.1021/la9906065

Ostwald ripening in the transient regime: a cryo-TEM study

O. Y. De Smet, D. Danino, L. Deriemaeker, Y. Talmon, R. Finsy

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33 Scopus citations

Abstract

The evolution of the droplet size distribution of a tetradecane in water emulsion, stabilized by sodium dodecyl benzene sulfonate (SDBS) was followed by cryo-TEM during a 51 day period. As a reference for the initial distribution of a freshly prepared emulsion, the size distribution of a virtually nongrowing squalane in water emulsion was also monitored. It appears that the initial distribution is right skewed and close to log-normal with a broadness parameter of σ = 0.5. This distribution evolved rapidly to a more symmetrical one. At the end of the observation the average particle size increased by a factor of about 2.5, but the limiting left skewed distribution, predicted by the LSW (Lifshitz-Slyozov-Wagner) theory, was not obtained. The ripening rate estimated from the slope of a_n³ (a_n is the number averaged radius) as a function of time is in agreement with the prediction from the LSW theory.

Original language	English
Pages (from-to)	961-967
Number of pages	7
Journal	Langmuir
Volume	16
Issue number	3
DOIs	https://doi.org/10.1021/la9906065
State	Published - 8 Feb 2000
Externally published	Yes

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title = "Ostwald ripening in the transient regime: a cryo-TEM study",

abstract = "The evolution of the droplet size distribution of a tetradecane in water emulsion, stabilized by sodium dodecyl benzene sulfonate (SDBS) was followed by cryo-TEM during a 51 day period. As a reference for the initial distribution of a freshly prepared emulsion, the size distribution of a virtually nongrowing squalane in water emulsion was also monitored. It appears that the initial distribution is right skewed and close to log-normal with a broadness parameter of σ = 0.5. This distribution evolved rapidly to a more symmetrical one. At the end of the observation the average particle size increased by a factor of about 2.5, but the limiting left skewed distribution, predicted by the LSW (Lifshitz-Slyozov-Wagner) theory, was not obtained. The ripening rate estimated from the slope of an3 (an is the number averaged radius) as a function of time is in agreement with the prediction from the LSW theory.",

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T1 - Ostwald ripening in the transient regime

T2 - a cryo-TEM study

AU - De Smet, O. Y.

AU - Danino, D.

AU - Deriemaeker, L.

AU - Talmon, Y.

AU - Finsy, R.

PY - 2000/2/8

Y1 - 2000/2/8

N2 - The evolution of the droplet size distribution of a tetradecane in water emulsion, stabilized by sodium dodecyl benzene sulfonate (SDBS) was followed by cryo-TEM during a 51 day period. As a reference for the initial distribution of a freshly prepared emulsion, the size distribution of a virtually nongrowing squalane in water emulsion was also monitored. It appears that the initial distribution is right skewed and close to log-normal with a broadness parameter of σ = 0.5. This distribution evolved rapidly to a more symmetrical one. At the end of the observation the average particle size increased by a factor of about 2.5, but the limiting left skewed distribution, predicted by the LSW (Lifshitz-Slyozov-Wagner) theory, was not obtained. The ripening rate estimated from the slope of an3 (an is the number averaged radius) as a function of time is in agreement with the prediction from the LSW theory.

AB - The evolution of the droplet size distribution of a tetradecane in water emulsion, stabilized by sodium dodecyl benzene sulfonate (SDBS) was followed by cryo-TEM during a 51 day period. As a reference for the initial distribution of a freshly prepared emulsion, the size distribution of a virtually nongrowing squalane in water emulsion was also monitored. It appears that the initial distribution is right skewed and close to log-normal with a broadness parameter of σ = 0.5. This distribution evolved rapidly to a more symmetrical one. At the end of the observation the average particle size increased by a factor of about 2.5, but the limiting left skewed distribution, predicted by the LSW (Lifshitz-Slyozov-Wagner) theory, was not obtained. The ripening rate estimated from the slope of an3 (an is the number averaged radius) as a function of time is in agreement with the prediction from the LSW theory.

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JO - Langmuir

JF - Langmuir

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ER -

Ostwald ripening in the transient regime: a cryo-TEM study

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