Extreme emulsification: formation and structure of nanoemulsions

Nanoemulsions are metastable dispersions of nanodroplets of one liquid that have been ruptured by shear in another immiscible liquid. The ruptured droplets are stabilized against subsequent coalescence by a surfactant. Because the nanodroplets do not form spontaneously, as they can in lyotropic “m...

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Veröffentlicht in:Condensed Matter Physics
Datum:2006
Hauptverfasser: Mason, T.G., Graves, S.M., Wilking, J.N., Lin, M.Y.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут фізики конденсованих систем НАН України 2006
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/121314
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Zitieren:Extreme emulsification: formation and structure of nanoemulsions / T.G. Mason, S.M. Graves, J.N. Wilking, M.Y. Lin // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 193–199. — Бібліогр.: 17 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id nasplib_isofts_kiev_ua-123456789-121314
record_format dspace
spelling Mason, T.G.
Graves, S.M.
Wilking, J.N.
Lin, M.Y.
2017-06-14T04:47:04Z
2017-06-14T04:47:04Z
2006
Extreme emulsification: formation and structure of nanoemulsions / T.G. Mason, S.M. Graves, J.N. Wilking, M.Y. Lin // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 193–199. — Бібліогр.: 17 назв. — англ.
1607-324X
PACS: 82.70.Kj, 61.46.-w, 61.12.Ex
DOI:10.5488/CMP.9.1.193
https://nasplib.isofts.kiev.ua/handle/123456789/121314
Nanoemulsions are metastable dispersions of nanodroplets of one liquid that have been ruptured by shear in another immiscible liquid. The ruptured droplets are stabilized against subsequent coalescence by a surfactant. Because the nanodroplets do not form spontaneously, as they can in lyotropic “microemulsion” phases, the structure of nanoemulsions is primarily dependent on the history of the applied shear stresses relative to the interfacial restoring stresses. By applying extremely high shear rates and controlling the composition of the emulsion, we have been able to rupture microscale droplets down to diameters as small as 30 nm in a microfluidic process that yields bulk quantities suitable for commercial production. Following ultracentrifugal fractionation to make the droplets uniform, we study the structure of these emulsions using small angle neutron scattering (SANS) at dilute and concentrated volume fractions. We contrast the structure of a concentrated nanoemulsion with the structure factor of hard spheres at a similar volume fraction.
We thank Dr. John McTague for supporting this research through the McTague Career Development Chair at UCLA. We thank NIST for the NG–7 SANS beam time.
en
Інститут фізики конденсованих систем НАН України
Condensed Matter Physics
Extreme emulsification: formation and structure of nanoemulsions
Екстремальна емульсифікація: формування та структура наноемульсій
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title Extreme emulsification: formation and structure of nanoemulsions
spellingShingle Extreme emulsification: formation and structure of nanoemulsions
Mason, T.G.
Graves, S.M.
Wilking, J.N.
Lin, M.Y.
title_short Extreme emulsification: formation and structure of nanoemulsions
title_full Extreme emulsification: formation and structure of nanoemulsions
title_fullStr Extreme emulsification: formation and structure of nanoemulsions
title_full_unstemmed Extreme emulsification: formation and structure of nanoemulsions
title_sort extreme emulsification: formation and structure of nanoemulsions
author Mason, T.G.
Graves, S.M.
Wilking, J.N.
Lin, M.Y.
author_facet Mason, T.G.
Graves, S.M.
Wilking, J.N.
Lin, M.Y.
publishDate 2006
language English
container_title Condensed Matter Physics
publisher Інститут фізики конденсованих систем НАН України
format Article
title_alt Екстремальна емульсифікація: формування та структура наноемульсій
description Nanoemulsions are metastable dispersions of nanodroplets of one liquid that have been ruptured by shear in another immiscible liquid. The ruptured droplets are stabilized against subsequent coalescence by a surfactant. Because the nanodroplets do not form spontaneously, as they can in lyotropic “microemulsion” phases, the structure of nanoemulsions is primarily dependent on the history of the applied shear stresses relative to the interfacial restoring stresses. By applying extremely high shear rates and controlling the composition of the emulsion, we have been able to rupture microscale droplets down to diameters as small as 30 nm in a microfluidic process that yields bulk quantities suitable for commercial production. Following ultracentrifugal fractionation to make the droplets uniform, we study the structure of these emulsions using small angle neutron scattering (SANS) at dilute and concentrated volume fractions. We contrast the structure of a concentrated nanoemulsion with the structure factor of hard spheres at a similar volume fraction.
issn 1607-324X
url https://nasplib.isofts.kiev.ua/handle/123456789/121314
citation_txt Extreme emulsification: formation and structure of nanoemulsions / T.G. Mason, S.M. Graves, J.N. Wilking, M.Y. Lin // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 193–199. — Бібліогр.: 17 назв. — англ.
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