Publication
Impact of the cation symmetry on the mutual solubilities between water and imidazolium-based ionic liquids
dc.contributor.author | Martins, Mónia A.R. | |
dc.contributor.author | Neves, Catarina M.S.S. | |
dc.contributor.author | Kurnia, Kiki A. | |
dc.contributor.author | Luís, Andreia | |
dc.contributor.author | Santos, Luís M.N.B.F. | |
dc.contributor.author | Freire, Mara G. | |
dc.contributor.author | Pinho, Simão | |
dc.contributor.author | Coutinho, João A.P. | |
dc.date.accessioned | 2016-10-11T15:53:37Z | |
dc.date.available | 2016-10-11T15:53:37Z | |
dc.date.issued | 2014 | |
dc.description.abstract | Aiming at the evaluation of the impact of the ionic liquids (ILs) cation symmetry on their phase behaviour, in this work, novel mutual solubilities with water of the symmetric series of [C(n)C(n)im][NTf2] (with n=1-5) were determined and compared with their isomeric forms of the asymmetric [C(n)C(1)im][NTf2] group. While the solubility of isomeric ILs in water was found to be similar, the solubility of water in ILs follows the same trend up to a maximum cation alkyl side chain length. For n >= 4 in [C(n)C(n)im][NTf2] the solubility of water in the asymmetric ILs is slightly higher than that observed in the symmetric counterparts. The thermodynamic properties of solution and solvation derived from the experimental solubility data of ILs in water at infinite dilution, namely the Gibbs energy, enthalpy and entropy were used to evaluate the cation symmetry effect on the ILs solvation. It is shown that the solubility of ILs in water is entropically driven and highly influenced by the cation size. Accordingly, it was found that the ILs solubility in water of both symmetric and asymmetric series depends on their molecular volume. Based on these findings, a linear correlation between the logarithm of the solubility of ILs in water and their molar volume is here proposed for the [NTf2]-based ILs at a fixed temperature. | pt_PT |
dc.description.sponsorship | This work was financed by national funding from Fundac¸ ão paraa Ciência e a Tecnologia (FCT, Portugal), European Union, QREN,FEDER and COMPETE by the projects PEST-C/CTM/LA0011/2013and PEST-C/EQB/LA0020/2013. The authors also thank FCT forthe PhD and postdoctoral grants SFRH/BD/87084/2012, SFRH/BD/70641/2010, SFRH/BPD/88101/2012 of M.A.R.M., C.M.S.S.N., andK.A.K., respectively. | pt_PT |
dc.identifier.citation | Martins, Mónia A.R.; Neves, Catarina M.S.S.; Kurnia, Kiki A.; Luís, Andreia; Santos, Luís M.N.B.F.; Freire, Mara G.; Pinho, Simão; Coutinho, João A.P. (2014). Impact of the cation symmetry on the mutual solubilities between water and imidazolium-based ionic liquids. Fluid Phase Equilibria. ISSN 0378-3812. 375, p.161-167 | pt_PT |
dc.identifier.doi | 10.1016/j.fluid.2014.05.013 | pt_PT |
dc.identifier.issn | 0378-3812 | |
dc.identifier.uri | http://hdl.handle.net/10198/13394 | |
dc.language.iso | eng | pt_PT |
dc.relation | PARÂMETROS QUÍMICO-FÍSICOS DE TERPENOS E TERPENOIDES PARA APLICAÇÃO EM ESTUDOS DE IMPACTO AMBIENTAL | |
dc.relation | EVALUATION OF ENVIRONMENTAL IMPACT AND TREATMENT OF AQUEOUS EFFLUENTS CONTAMINATED WITH IONIC LIQUIDS | |
dc.relation | DEVELOPMENT OF IONIC LIQUIDS FORMULATIONS FOR THE PURIFICATION OF SHALE GAS | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.subject | Mutual solubilities | pt_PT |
dc.subject | Ionic liquids | pt_PT |
dc.subject | Water | pt_PT |
dc.subject | Cation symmetry | pt_PT |
dc.subject | COSMO-RS | pt_PT |
dc.title | Impact of the cation symmetry on the mutual solubilities between water and imidazolium-based ionic liquids | pt_PT |
dc.type | journal article | |
dspace.entity.type | Publication | |
oaire.awardTitle | PARÂMETROS QUÍMICO-FÍSICOS DE TERPENOS E TERPENOIDES PARA APLICAÇÃO EM ESTUDOS DE IMPACTO AMBIENTAL | |
oaire.awardTitle | EVALUATION OF ENVIRONMENTAL IMPACT AND TREATMENT OF AQUEOUS EFFLUENTS CONTAMINATED WITH IONIC LIQUIDS | |
oaire.awardTitle | DEVELOPMENT OF IONIC LIQUIDS FORMULATIONS FOR THE PURIFICATION OF SHALE GAS | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/COMPETE/PEst-C%2FCTM%2FLA0011%2F2013/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/COMPETE/PEst-C%2FEQB%2FLA0020%2F2013/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F87084%2F2012/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F70641%2F2010/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F88101%2F2012/PT | |
oaire.citation.endPage | 167 | pt_PT |
oaire.citation.startPage | 161 | pt_PT |
oaire.citation.title | Fluid Phase Equilibria | pt_PT |
oaire.citation.volume | 375 | pt_PT |
oaire.fundingStream | COMPETE | |
oaire.fundingStream | COMPETE | |
person.familyName | Pinho | |
person.givenName | Simão | |
person.identifier | 810882 | |
person.identifier.ciencia-id | 481D-73AD-8D0F | |
person.identifier.orcid | 0000-0002-9211-857X | |
person.identifier.rid | D-4148-2013 | |
person.identifier.scopus-author-id | 7003570175 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
rcaap.rights | restrictedAccess | pt_PT |
rcaap.type | article | pt_PT |
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