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231223s2004 xx ||||| 00| ||eng c |
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|a eng
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| 100 |
1 |
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|a Scanu, Lauriane F
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Lattice Monte Carlo simulations of phase separation and micellization in supercritical CO2/surfactant systems
|b effect of CO2 density
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|c 2004
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 04.01.2006
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|a Date Revised 26.10.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Lattice Monte Carlo simulations are used to study the effect of nonionic surfactant concentration and CO2 density on the micellization and phase equilibria of supercritical CO2/surfactant systems. The interaction parameter for carbon dioxide is obtained by matching the critical temperature of the model fluid with the experimental critical temperature. Various properties such as the critical micelle concentration and the size, shape, and structure ofmicelles are calculated, and the phase diagram in the surfactant concentration-CO2 density space is constructed. On increasing the CO2 density, we find an increase in the critical micelle concentration and a decrease in the micellar size; this is consistent with existing experimental results. The variation of the micellar shape and structure with CO2 density shows that the micelles are spherical and that the extension of the micellar core increases with increasing micellar size, while the extension of the micellar corona increases with increasing CO2 density. The predicted phase diagram is in qualitative agreement with experimental phase diagrams for nonionic surfactants in carbon dioxide
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|a Journal Article
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|a Gubbins, Keith E
|e verfasserin
|4 aut
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1 |
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|a Hall, Carol K
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 20(2004), 2 vom: 20. Jan., Seite 514-23
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
1 |
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|g volume:20
|g year:2004
|g number:2
|g day:20
|g month:01
|g pages:514-23
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|a AR
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| 952 |
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|d 20
|j 2004
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|h 514-23
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