Surfactant-free "emulsions" generated by Freeze-thaw

Gary R. Burnett; Rob Atkin; Stuart Hicks; Julian Eastoe

doi:10.1021/la049923o

Surfactant-free "emulsions" generated by Freeze-thaw

Gary R. Burnett, Rob Atkin, Stuart Hicks, Julian Eastoe

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The stability of surfactantless dispersions of surface chemically pure alkanes was studied in the presence and absence of dissolved gas. It was found that simply freezing and thawing a sample of oil and water results in a dispersion. A mechanism based on fingering of the insoluble oil into the aqueous phase, due to local surface tension gradients, followed by separation and nucleation into droplets, is proposed to account for this observation.

Original language	English
Pages (from-to)	5673-5678
Number of pages	6
Journal	Langmuir
Volume	20
Issue number	14
DOIs	https://doi.org/10.1021/la049923o
Publication status	Published - 6 Jul 2004
Externally published	Yes

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10.1021/la049923o

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abstract = "The stability of surfactantless dispersions of surface chemically pure alkanes was studied in the presence and absence of dissolved gas. It was found that simply freezing and thawing a sample of oil and water results in a dispersion. A mechanism based on fingering of the insoluble oil into the aqueous phase, due to local surface tension gradients, followed by separation and nucleation into droplets, is proposed to account for this observation.",

author = "Burnett, {Gary R.} and Rob Atkin and Stuart Hicks and Julian Eastoe",

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AU - Burnett, Gary R.

AU - Atkin, Rob

AU - Hicks, Stuart

AU - Eastoe, Julian

PY - 2004/7/6

Y1 - 2004/7/6

N2 - The stability of surfactantless dispersions of surface chemically pure alkanes was studied in the presence and absence of dissolved gas. It was found that simply freezing and thawing a sample of oil and water results in a dispersion. A mechanism based on fingering of the insoluble oil into the aqueous phase, due to local surface tension gradients, followed by separation and nucleation into droplets, is proposed to account for this observation.

AB - The stability of surfactantless dispersions of surface chemically pure alkanes was studied in the presence and absence of dissolved gas. It was found that simply freezing and thawing a sample of oil and water results in a dispersion. A mechanism based on fingering of the insoluble oil into the aqueous phase, due to local surface tension gradients, followed by separation and nucleation into droplets, is proposed to account for this observation.

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U2 - 10.1021/la049923o

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VL - 20

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JO - Langmuir

JF - Langmuir

IS - 14

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Surfactant-free "emulsions" generated by Freeze-thaw

Abstract

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