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Oil/water droplet formation by temperature change in the water/C16E6/mineral oil system

Morales, D ; Solans, C ; Gutierrez, JM ; Garcia-Celma, MJ and Olsson, Ulf LU (2006) In Langmuir 22(7). p.3014-3020
Abstract
Droplet sizes of oil/water (O/W) nanoemulsions prepared by the phase inversion temperature (PIT) method, in the water/C16E6/mineral oil system, have been compared with those given by a theoretical droplet model, which predicts a minimum droplet size. The results show that, when the phase inversion was started from either a single-phase microemulsion (D) or a two-phase W+D equilibrium, the resulting droplet sizes were close to those predicted by the model, whereas, when emulsification was started from W+D+O or from W+D+L alpha (L alpha = lamellar liquid crystal) equilibria, the difference between the measured and predicted values was much higher. The structural changes produced during the phase inversion process have been investigated by... (More)
Droplet sizes of oil/water (O/W) nanoemulsions prepared by the phase inversion temperature (PIT) method, in the water/C16E6/mineral oil system, have been compared with those given by a theoretical droplet model, which predicts a minimum droplet size. The results show that, when the phase inversion was started from either a single-phase microemulsion (D) or a two-phase W+D equilibrium, the resulting droplet sizes were close to those predicted by the model, whereas, when emulsification was started from W+D+O or from W+D+L alpha (L alpha = lamellar liquid crystal) equilibria, the difference between the measured and predicted values was much higher. The structural changes produced during the phase inversion process have been investigated by the H-1-PFGSE-NMR technique, monitoring the self-diffusion coefficients for each component as a function of temperature. The results have confirmed the transition from a bicontinuous D microemulsion at the hydrophile-lipophile balance (HLB) temperature to oil nanodroplet dispersion in water when it is cooled to lower temperatures. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Langmuir
volume
22
issue
7
pages
3014 - 3020
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000236843300020
  • scopus:33645510106
ISSN
0743-7463
DOI
10.1021/la052324c
language
English
LU publication?
yes
id
f712c2a4-bd11-42b3-9b82-5ab2dfa64764 (old id 413984)
date added to LUP
2016-04-01 12:03:54
date last changed
2019-11-26 03:17:46
@article{f712c2a4-bd11-42b3-9b82-5ab2dfa64764,
  abstract     = {Droplet sizes of oil/water (O/W) nanoemulsions prepared by the phase inversion temperature (PIT) method, in the water/C16E6/mineral oil system, have been compared with those given by a theoretical droplet model, which predicts a minimum droplet size. The results show that, when the phase inversion was started from either a single-phase microemulsion (D) or a two-phase W+D equilibrium, the resulting droplet sizes were close to those predicted by the model, whereas, when emulsification was started from W+D+O or from W+D+L alpha (L alpha = lamellar liquid crystal) equilibria, the difference between the measured and predicted values was much higher. The structural changes produced during the phase inversion process have been investigated by the H-1-PFGSE-NMR technique, monitoring the self-diffusion coefficients for each component as a function of temperature. The results have confirmed the transition from a bicontinuous D microemulsion at the hydrophile-lipophile balance (HLB) temperature to oil nanodroplet dispersion in water when it is cooled to lower temperatures.},
  author       = {Morales, D and Solans, C and Gutierrez, JM and Garcia-Celma, MJ and Olsson, Ulf},
  issn         = {0743-7463},
  language     = {eng},
  number       = {7},
  pages        = {3014--3020},
  publisher    = {The American Chemical Society (ACS)},
  series       = {Langmuir},
  title        = {Oil/water droplet formation by temperature change in the water/C16E6/mineral oil system},
  url          = {http://dx.doi.org/10.1021/la052324c},
  doi          = {10.1021/la052324c},
  volume       = {22},
  year         = {2006},
}