Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

The ionic liquid-surfactant bmim-AOT and nontoxic lipophilic solvents as components of reverse micelles alternative to the traditional systems. A study by 1H NMR spectroscopy

Dib, NahirIcon ; Falcone, Ruben DarioIcon ; Acuña, Angel; García-Río, Luis
Fecha de publicación: 04/2020
Editorial: Elsevier Science
Revista: Journal of Molecular Liquids
ISSN: 0167-7322
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Químicas

Resumen

Aqueous reverse micelles (RMs) of the ionic liquid-surfactant 1-butyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate (bmim-AOT) in the biocompatible nonpolar solvents isopropyl myristate (IPM) and methyl laurate (ML) were formulated and characterized by DLS and 1H NMR techniques; the goal is to develop less toxic and more environmentally friendly reverse micellar systems than traditional RMs formed by organic solvents such as n-heptane (n-Hp). The interfacial composition of these new micellar systems was compared with water/bmim-AOT/n-Hp RMs, analyzing the effect of changing the conventional external nonpolar solvent n-Hp for the biocompatible solvents IPM and ML. Also, they were compared with the RMs of the traditional surfactant sodium 1,4-bis-2-ethylhexylsulfosuccinate (Na-AOT) in IPM and ML to analyze the role of the bmim+ counterion compared to Na+ in the interfacial properties of the generated RMs. The results indicate that both ML and IPM can be used as nonpolar solvents to prepare RMs using bmim-AOT as surfactant. In comparison to n-Hp, IPM and ML penetrate more to the micellar interface, therefore, the ester group of the biocompatible solvent located at the micellar interface interacts with the bmim+ cation. As a consequence of this fact, the bmim+-AOT− interaction decreases when IPM or ML are used as the external solvent instead of n-Hp. In the Na-AOT/IPM and Na-AOT/ML systems, the dissimilar penetration of the external solvent makes the interfacial properties of both RMs clearly different. Interestingly, in the bmim-AOT/biocompatible solvent systems, the micellar interface properties are strongly governed by the bmim+ counterion, finding similar behavior if the external biocompatible solvent is IPM or ML.
Palabras clave: 1H NMR , BMIM-AOT , NA-AOT , NONTOXIC SOLVENTS , OIL PENETRATION , REVERSE MICELLES
Ver el registro completo
 
Archivos asociados
Tamaño: 1.466Mb
Formato: PDF
.
Solicitar
Licencia
info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/134075
URL: https://linkinghub.elsevier.com/retrieve/pii/S0167732219372022
DOI: http://dx.doi.org/10.1016/j.molliq.2020.112762
Colecciones
Articulos (IDAS)
Articulos de INSTITUTO PARA EL DESARROLLO AGROINDUSTRIAL Y DE LA SALUD
Citación
Dib, Nahir; Falcone, Ruben Dario; Acuña, Angel; García-Río, Luis; The ionic liquid-surfactant bmim-AOT and nontoxic lipophilic solvents as components of reverse micelles alternative to the traditional systems. A study by 1H NMR spectroscopy; Elsevier Science; Journal of Molecular Liquids; 304; 112762; 4-2020; 1-8
Compartir
Altmétricas
 
Estadísticas
Visualizaciones: 45
Descargas: 0

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • Twitter
  • Instagram
  • YouTube
  • Sound Cloud

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

Ministerio
https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES