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dc.contributor.author
Quintana Lazópulos, Silvina Soledad
dc.contributor.author
Falcone, Ruben Dario
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Chessa, Juana Josefa
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Moyano, Fernando
dc.contributor.author
Correa, Nestor Mariano
dc.date.available
2018-03-06T20:18:56Z
dc.date.issued
2015-03
dc.identifier.citation
Quintana Lazópulos, Silvina Soledad; Falcone, Ruben Dario; Chessa, Juana Josefa; Moyano, Fernando; Correa, Nestor Mariano; On the characterization of NaDEHP/n-heptane nonaqueous reverse micelles: The effect of the polar solvent; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 17; 10; 3-2015; 7002-7011
dc.identifier.issn
1463-9076
dc.identifier.uri
http://hdl.handle.net/11336/38064
dc.description.abstract
The behavior of two polar solvents, ethylene glycol (EG) and dimethylformamide (DMF), entrapped in sodium bis-(2-ethylhexyl) phosphate (NaDEHP)/n-heptane reverse micelles (RMs) was investigated using dynamic light scattering (DLS), molecular probe absorption and FT-IR spectroscopy. DLS results reveal the formation of RMs containing EG and DMF as a polar component. To the best of our knowledge this is the first report where both polar solvents are entrapped by the NaDEHP surfactant to effectively create RMs. We use the solvatochromism behavior of the molecular probe, 1-methyl-8-oxyquinolinum betaine (QB), and FT-IR spectroscopy to investigate the physicochemical properties of the non-aqueous RMs. Our results demonstrate that the NaDEHP surfactant interacts through hydrogen bonds with EG at the EG/NaDEHP interface and this interaction is responsible for destroying the bulk structure of pure solvent EG when entrapped in NaDEHP RMs. On the other hand, when DMF is incorporated inside the RMs the bulk structure of DMF is destroyed upon encapsulation by the Na-DMF interaction at the DMF/NaDEHP interface. Our results are completely different than the one observed for DMF/n-heptane/AOT. Our results show how the physicochemical properties, such as micropolarity, microviscosity and hydrogen bond interaction, of nonaqueous NaDEHP/n-heptane RMs interfaces can be dramatically changed by simply using different non-aqueous polar solvents. Thus, these results can be very useful to employ these novel RMs as nanoreactors since the dimensions of the RMs are around 10 to 20 nm.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Non Aqueous
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Reverse Micelles
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Nadehp
dc.subject.classification
Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
On the characterization of NaDEHP/n-heptane nonaqueous reverse micelles: The effect of the polar solvent
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-02T13:58:16Z
dc.journal.volume
17
dc.journal.number
10
dc.journal.pagination
7002-7011
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Quintana Lazópulos, Silvina Soledad. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Falcone, Ruben Dario. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Chessa, Juana Josefa. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Moyano, Fernando. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Correa, Nestor Mariano. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Physical Chemistry Chemical Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/c4cp05024j
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/CP/C4CP05024J
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