Tuning physicochemical, electrochemical and transport characteristics of polymer inclusion membrane by varying the counter-anion of the ionic liquid Aliquat 336
dc.contributor.author
dc.date.accessioned
2017-10-24T10:27:36Z
dc.date.available
2017-10-24T10:27:36Z
dc.date.issued
2017-05-01
dc.identifier.issn
0376-7388
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dc.description.abstract
Polymer inclusion membranes (PIMs) have been prepared using cellulose triacetate (CTA) as polymer and derivatives of the commercial ionic liquid (IL) Aliquat 336, trioctyl methylammonium chloride (AlqCl), as extractants. The different ILs were prepared by exchanging chloride anion from AlqCl for other more lipophilic anions, obtaining IL derivatives AlqNO 3 and AlqSCN. PIMs containing these extractants at two different concentrations (30% and 60%) were prepared and characterized using X-ray photoelectron spectroscopy (XPS), infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), contact angle and impedance spectroscopy to obtain information on the material properties of both the surface and bulk membranes. The IL counter-anion affects the membrane's electrical parameters (dielectric constant and conductivity) as well as its hydrophobic character, which also depends on the IL concentration in the PIM formulation. Passive transport across the different PIMs using HCl and NaCl aqueous solutions was also considered, and the results obtained seem to be directly related to the hydrophilic/hydrophobic character of the studied membranes
dc.description.sponsorship
The financial support of the Spanish government through research project CTM2013-48967-C2-2-P is acknowledged. R. Vera acknowledges a grant from the Spanish Ministerio de Economía y Competitividad (ref. BES-2014-068314)
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application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MINECO//CTM2013-48967-C2-2-P/ES/DESARROLLO, INTERPRETACION Y APLICACION DE TECNICAS EMERGENTES PARA DETERMINAR LA ESPECIACION Y LA DISPONIBILIDAD DE IONES INORGANICOS Y NANOPARTICULAS EN MEDIOS NATURALES/
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Reproducció digital del document publicat a: https://doi.org/10.1016/j.memsci.2017.01.055
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© Journal of Membrane Science, 2017, vol. 529, p. 87-94
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Articles publicats (D-Q)
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Tots els drets reservats
dc.subject
dc.title
Tuning physicochemical, electrochemical and transport characteristics of polymer inclusion membrane by varying the counter-anion of the ionic liquid Aliquat 336
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
026563
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dc.relation.ProjectAcronym