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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c01575
|2 doi
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|a pubmed24n1046.xml
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|a (DE-627)NLM314041222
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|a (NLM)32830497
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Lépori, Cristian M O
|e verfasserin
|4 aut
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| 245 |
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|a Influence of the AOT Counterion Chemical Structure on the Generation of Organized Systems
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 15.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The impact of the imidazolium counterion structure on the organized systems formed by the surfactant 1,4-bis-2-ethylhexylsulfosuccinate, AOT, both in aqueous solutions and in nonpolar solvents is investigated. With this in mind, we investigated if the ionic liquid-like (IL-like) surfactant 1-ethyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate, emim-AOT, forms direct micelles or vesicles in water. Dynamic light scattering, zeta potential, conductivity, fluorescence spectroscopy, and UV-visible spectroscopy measurements were performed to characterize the organized systems in aqueous solutions. We also studied the self-aggregation of emim-AOT, 1-butyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate, bmim-AOT, and of 1-hexyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate, hmim-AOT, in nonpolar solvents. The results obtained showed that the IL-like surfactant emim-AOT forms direct micelles in water, as sodium 1,4-bis-2-ethylhexylsulfosuccinate (Na-AOT) does. However, emim-AOT aggregates are larger, have a lower surface charge, are more stable, and have a more polar and less fluid micellar interface than Na-AOT micelles. It was also observed that emim-AOT and hmim-AOT form reverse micelles in nonpolar solvents. The size of the imidazolium cations dramatically influences the size of the reverse micelles and their ability to solubilize water
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|a Journal Article
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1 |
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|a Correa, N Mariano
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Silber, Juana J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Falcone, R Darío
|e verfasserin
|4 aut
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| 700 |
1 |
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|a López-López, Manuel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Moyá, M Luisa
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 36 vom: 15. Sept., Seite 10785-10793
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2020
|g number:36
|g day:15
|g month:09
|g pages:10785-10793
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|u http://dx.doi.org/10.1021/acs.langmuir.0c01575
|3 Volltext
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