Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | https://doi.org/10.1021/acs.jpcb.5b09819 http://www.locus.ufv.br/handle/123456789/19070 |
Resumo: | It is well-known that ionic liquids (ILs) alter the properties of aqueous systems containing only surfactants. However, the effect of ILs on polymer–surfactant systems is still unknown. Here, the effect of 1-butyl-3-methylimidazolium bromide (bmimBr) and chloride (bmimCl) on the micellization of sodium dodecyl sulfate (SDS) and its interaction with poly(ethylene oxide) (PEO) was evaluated using conductimetry, fluorimetry, and isothermal titration calorimetry. The ILs decreased the critical micellar concentration (cmc) of the surfactant, stabilizing the SDS micelles. A second critical concentration (c2thc) was verified at high SDS concentrations, due to the micelle size decrease. The stability of PEO/SDS aggregates was also affected by ILs, and the critical aggregation concentration (cac) of SDS increased. Integral aggregation enthalpy changed from −0.72 in water to 2.16 kJ mol–1 in 4.00 mM bmimBr. IL anions did not affect the SDS micellization or the beginning of PEO/SDS aggregation. Nevertheless, when chloride was replaced with bromide, the amount of SDS bound to the polymer increased. At 100.0 mM IL, the PEO-SDS interaction vanished. We suggest that the effect of ILs comes from participating in the structure of the formed aggregates, interacting with the SDS monomers at the core/interface of the micelles, and promoting preferential solvation of the polymer. |
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Ferreira, Gabriel M. DiasFerreira, Guilherme M. DiasAgudelo, Álvaro J. PatinõSilva, Maria C. Hespanhol daRezende, Jaqueline de PaulaPires, Ana Clarissa dos SantosSilva, Luis Henrique Mendes da2018-04-24T11:29:33Z2018-04-24T11:29:33Z2015-11-2315205207https://doi.org/10.1021/acs.jpcb.5b09819http://www.locus.ufv.br/handle/123456789/19070It is well-known that ionic liquids (ILs) alter the properties of aqueous systems containing only surfactants. However, the effect of ILs on polymer–surfactant systems is still unknown. Here, the effect of 1-butyl-3-methylimidazolium bromide (bmimBr) and chloride (bmimCl) on the micellization of sodium dodecyl sulfate (SDS) and its interaction with poly(ethylene oxide) (PEO) was evaluated using conductimetry, fluorimetry, and isothermal titration calorimetry. The ILs decreased the critical micellar concentration (cmc) of the surfactant, stabilizing the SDS micelles. A second critical concentration (c2thc) was verified at high SDS concentrations, due to the micelle size decrease. The stability of PEO/SDS aggregates was also affected by ILs, and the critical aggregation concentration (cac) of SDS increased. Integral aggregation enthalpy changed from −0.72 in water to 2.16 kJ mol–1 in 4.00 mM bmimBr. IL anions did not affect the SDS micellization or the beginning of PEO/SDS aggregation. Nevertheless, when chloride was replaced with bromide, the amount of SDS bound to the polymer increased. At 100.0 mM IL, the PEO-SDS interaction vanished. We suggest that the effect of ILs comes from participating in the structure of the formed aggregates, interacting with the SDS monomers at the core/interface of the micelles, and promoting preferential solvation of the polymer.engThe Journal of Physical Chemistry Bv. 119, n. 51, p. 15758–15768, November 2015American Chemical Societyinfo:eu-repo/semantics/openAccess1-Butyl-3-methylimidazoliumDodecyl sulfate micellesDodecyl sulfate polyEffect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregatesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdfTexto completoapplication/pdf1268153https://locus.ufv.br//bitstream/123456789/19070/1/artigo.pdf2a521dde692eea01e7be8888051cf83bMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/19070/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILartigo.pdf.jpgartigo.pdf.jpgIM Thumbnailimage/jpeg6494https://locus.ufv.br//bitstream/123456789/19070/3/artigo.pdf.jpg44be246b6e42c5053d514c160eb68b08MD53123456789/190702018-04-24 23:00:41.699oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-04-25T02:00:41LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
title |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
spellingShingle |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates Ferreira, Gabriel M. Dias 1-Butyl-3-methylimidazolium Dodecyl sulfate micelles Dodecyl sulfate poly |
title_short |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
title_full |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
title_fullStr |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
title_full_unstemmed |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
title_sort |
Effect of 1‐Butyl-3-methylimidazolium halide on the relative stability between sodium Dodecyl Sulfate Micelles and sodium Dodecyl Sulfate−Poly(ethylene oxide) Nanoaggregates |
author |
Ferreira, Gabriel M. Dias |
author_facet |
Ferreira, Gabriel M. Dias Ferreira, Guilherme M. Dias Agudelo, Álvaro J. Patinõ Silva, Maria C. Hespanhol da Rezende, Jaqueline de Paula Pires, Ana Clarissa dos Santos Silva, Luis Henrique Mendes da |
author_role |
author |
author2 |
Ferreira, Guilherme M. Dias Agudelo, Álvaro J. Patinõ Silva, Maria C. Hespanhol da Rezende, Jaqueline de Paula Pires, Ana Clarissa dos Santos Silva, Luis Henrique Mendes da |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Ferreira, Gabriel M. Dias Ferreira, Guilherme M. Dias Agudelo, Álvaro J. Patinõ Silva, Maria C. Hespanhol da Rezende, Jaqueline de Paula Pires, Ana Clarissa dos Santos Silva, Luis Henrique Mendes da |
dc.subject.pt-BR.fl_str_mv |
1-Butyl-3-methylimidazolium Dodecyl sulfate micelles Dodecyl sulfate poly |
topic |
1-Butyl-3-methylimidazolium Dodecyl sulfate micelles Dodecyl sulfate poly |
description |
It is well-known that ionic liquids (ILs) alter the properties of aqueous systems containing only surfactants. However, the effect of ILs on polymer–surfactant systems is still unknown. Here, the effect of 1-butyl-3-methylimidazolium bromide (bmimBr) and chloride (bmimCl) on the micellization of sodium dodecyl sulfate (SDS) and its interaction with poly(ethylene oxide) (PEO) was evaluated using conductimetry, fluorimetry, and isothermal titration calorimetry. The ILs decreased the critical micellar concentration (cmc) of the surfactant, stabilizing the SDS micelles. A second critical concentration (c2thc) was verified at high SDS concentrations, due to the micelle size decrease. The stability of PEO/SDS aggregates was also affected by ILs, and the critical aggregation concentration (cac) of SDS increased. Integral aggregation enthalpy changed from −0.72 in water to 2.16 kJ mol–1 in 4.00 mM bmimBr. IL anions did not affect the SDS micellization or the beginning of PEO/SDS aggregation. Nevertheless, when chloride was replaced with bromide, the amount of SDS bound to the polymer increased. At 100.0 mM IL, the PEO-SDS interaction vanished. We suggest that the effect of ILs comes from participating in the structure of the formed aggregates, interacting with the SDS monomers at the core/interface of the micelles, and promoting preferential solvation of the polymer. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-11-23 |
dc.date.accessioned.fl_str_mv |
2018-04-24T11:29:33Z |
dc.date.available.fl_str_mv |
2018-04-24T11:29:33Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://doi.org/10.1021/acs.jpcb.5b09819 http://www.locus.ufv.br/handle/123456789/19070 |
dc.identifier.issn.none.fl_str_mv |
15205207 |
identifier_str_mv |
15205207 |
url |
https://doi.org/10.1021/acs.jpcb.5b09819 http://www.locus.ufv.br/handle/123456789/19070 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
v. 119, n. 51, p. 15758–15768, November 2015 |
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American Chemical Society info:eu-repo/semantics/openAccess |
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American Chemical Society |
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openAccess |
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application/pdf |
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The Journal of Physical Chemistry B |
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The Journal of Physical Chemistry B |
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