Non-aqueous Isorefractive Pickering Emulsions

Kate L. Thompson; Jacob A. Lane; Matthew J. Derry; Steven P. Armes

doi:10.1021/acs.langmuir.5b00630

Non-aqueous Isorefractive Pickering Emulsions

Kate L. Thompson, Jacob A. Lane, Matthew J. Derry, Steven P. Armes

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

Abstract

Non-aqueous Pickering emulsions of 16–240 μm diameter have been prepared using diblock copolymer worms with ethylene glycol as the droplet phase and an n-alkane as the continuous phase. Initial studies using n-dodecane resulted in stable emulsions that were significantly less turbid than conventional water-in-oil emulsions. This is attributed to the rather similar refractive indices of the latter two phases. By utilizing n-tetradecane as an alternative oil that almost precisely matches the refractive index of ethylene glycol, almost isorefractive ethylene glycol-in-n-tetradecane Pickering emulsions can be prepared. The droplet diameter and transparency of such emulsions can be systematically varied by adjusting the worm copolymer concentration.

Original language	English
Pages (from-to)	4373-4376
Journal	Langmuir
Volume	31
Issue number	15
DOIs	https://doi.org/10.1021/acs.langmuir.5b00630
Publication status	Published - 21 Apr 2015

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This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.

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10.1021/acs.langmuir.5b00630Licence: CC BY 3.0

Non-aqueous Isorefractive Pickering Emulsions
This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 1.33 MBLicence: CC BY 3.0

Cite this

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title = "Non-aqueous Isorefractive Pickering Emulsions",

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AU - Lane, Jacob A.

AU - Derry, Matthew J.

AU - Armes, Steven P.

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AB - Non-aqueous Pickering emulsions of 16–240 μm diameter have been prepared using diblock copolymer worms with ethylene glycol as the droplet phase and an n-alkane as the continuous phase. Initial studies using n-dodecane resulted in stable emulsions that were significantly less turbid than conventional water-in-oil emulsions. This is attributed to the rather similar refractive indices of the latter two phases. By utilizing n-tetradecane as an alternative oil that almost precisely matches the refractive index of ethylene glycol, almost isorefractive ethylene glycol-in-n-tetradecane Pickering emulsions can be prepared. The droplet diameter and transparency of such emulsions can be systematically varied by adjusting the worm copolymer concentration.

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Non-aqueous Isorefractive Pickering Emulsions

Abstract

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