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http://hdl.handle.net/10773/20827
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Khan, Imran | pt |
dc.contributor.author | Taha, Mohamed | pt |
dc.contributor.author | Pinho, Simao P. | pt |
dc.contributor.author | Coutinho, Joao A. P. | pt |
dc.date.accessioned | 2017-12-07T20:00:50Z | - |
dc.date.issued | 2016 | pt |
dc.identifier.issn | 0378-3812 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20827 | - |
dc.description.abstract | Looking for a better knowledge concerning water and ionic liquids (ILs) interactions, a systematic study of the activity coefficients of water in pyridinium, pyrrolidinium and piperidinium-based ILs at 298.2 K is here presented based on water activity measurements. Additionally, the study of the structural effects of the pyridinium-based cation is also pursued. The results show that non-aromatic ILs are interacting more with water than aromatic ones, and among the ortho, meta and para isomers of 1-butyl-methylpyridinium chloride, the ortho position confers a more hydrophilic character to that specific IL. The physical chemistry of the solutions was interpreted based on dissociation constants, natural bond orbitals and excess enthalpies providing a sound basis for the interpretation of the experimental observations. These results show that hydrogen bonding controls the behavior of these systems, being the anion-water one of the most relevant interactions, but modulated by the anion cation interactions. (C) 2016 Elsevier B.V. All rights reserved. | pt |
dc.language.iso | eng | pt |
dc.publisher | ELSEVIER SCIENCE BV | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147332/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147286/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F76850%2F2011/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F78441%2F2011/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/133246/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | DILUTION ACTIVITY-COEFFICIENTS | pt |
dc.subject | PHYSICAL-PROPERTIES | pt |
dc.subject | CARBON-DIOXIDE | pt |
dc.subject | IMIDAZOLIUM | pt |
dc.subject | MIXTURES | pt |
dc.subject | EXTRACTION | pt |
dc.subject | EQUILIBRIA | pt |
dc.subject | SOLVENT | pt |
dc.subject | SYSTEMS | pt |
dc.subject | CATION | pt |
dc.title | Interactions of pyridinium, pyrrolidinium or piperidinium based ionic liquids with water: Measurements and COSMO-RS modelling | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 93 | pt |
degois.publication.lastPage | 100 | pt |
degois.publication.title | FLUID PHASE EQUILIBRIA | pt |
degois.publication.volume | 414 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1016/j.fluid.2016.01.014 | pt |
dc.identifier.doi | 10.1016/j.fluid.2016.01.014 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Interactions of pyridinium pyrrolidinium or piperidinium based ionic liquids with water Measurements and COSMO-RS modelling_10.1016j.fluid.2016.01.014.pdf | 1.23 MB | Adobe PDF |
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