Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies
Authorized Users Only
2013
Authors
Vuksanović, JelenaCalado, Marta S.
Ivaniš, Gorica

Kijevčanin, Mirjana

Šerbanović, Slobodan P.
Višak, Zoran P.

Article (Published version)

Metadata
Show full item recordAbstract
In this paper, densities and viscosities of the solutions of PEG200 with two imidazolium ionic liquids, 1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide ([C(2)mim][NTf2]) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([C(2)mim][OTf]), at pressure 0.1 MPa and in the temperature range of 288.15-318.15 K, were measured. The experimental data were used to calculate excess molar volumes, deviations in viscosity and excess molar Gibbs free energies of activation of viscous flow for the studied solutions. Excess molar volumes indicate strong attractive interactions provoked by the studied ionic liquids which are even enhanced in the case of the [C(2)mim][OTf] as a solution component. The analysis of the viscosity data showed that these cannot be solely explained on the basis of the interactions between the present molecules/ions and that the factors also related to entropy - size and packing of molecules - must be considered as well. Thus, excess molar Gibbs free en...ergy of activation of viscous flow appeared as very important for a complete description of the current viscosity behavior.
Keywords:
Ionic liquids / Excess molar volume / Viscosity / Excess Gibbs energy of activation of viscous flowSource:
Fluid Phase Equilibria, 2013, 352, 100-109Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Ministry of Education and Science, Serbia
- New industrial and environmental application of chemical thermodynamics to the development of the chemical processes with multiphase and multicomponent systems (RS-172063)
- Fundacao para a Ciencia e a Tecnologia, (FCT), PortugalPortuguese Foundation for Science and Technology [PTDC/EQU-EPR/103505/2008]
- project "Projecto Estrategico" [PEst-OE/QUI/UI0100/2013]
DOI: 10.1016/j.fluid.2013.05.013
ISSN: 0378-3812
WoS: 000322685900017
Scopus: 2-s2.0-84880045673
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Vuksanović, Jelena AU - Calado, Marta S. AU - Ivaniš, Gorica AU - Kijevčanin, Mirjana AU - Šerbanović, Slobodan P. AU - Višak, Zoran P. PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2422 AB - In this paper, densities and viscosities of the solutions of PEG200 with two imidazolium ionic liquids, 1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide ([C(2)mim][NTf2]) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([C(2)mim][OTf]), at pressure 0.1 MPa and in the temperature range of 288.15-318.15 K, were measured. The experimental data were used to calculate excess molar volumes, deviations in viscosity and excess molar Gibbs free energies of activation of viscous flow for the studied solutions. Excess molar volumes indicate strong attractive interactions provoked by the studied ionic liquids which are even enhanced in the case of the [C(2)mim][OTf] as a solution component. The analysis of the viscosity data showed that these cannot be solely explained on the basis of the interactions between the present molecules/ions and that the factors also related to entropy - size and packing of molecules - must be considered as well. Thus, excess molar Gibbs free energy of activation of viscous flow appeared as very important for a complete description of the current viscosity behavior. PB - Elsevier Science Bv, Amsterdam T2 - Fluid Phase Equilibria T1 - Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies EP - 109 SP - 100 VL - 352 DO - 10.1016/j.fluid.2013.05.013 ER -
@article{ author = "Vuksanović, Jelena and Calado, Marta S. and Ivaniš, Gorica and Kijevčanin, Mirjana and Šerbanović, Slobodan P. and Višak, Zoran P.", year = "2013", abstract = "In this paper, densities and viscosities of the solutions of PEG200 with two imidazolium ionic liquids, 1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide ([C(2)mim][NTf2]) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate ([C(2)mim][OTf]), at pressure 0.1 MPa and in the temperature range of 288.15-318.15 K, were measured. The experimental data were used to calculate excess molar volumes, deviations in viscosity and excess molar Gibbs free energies of activation of viscous flow for the studied solutions. Excess molar volumes indicate strong attractive interactions provoked by the studied ionic liquids which are even enhanced in the case of the [C(2)mim][OTf] as a solution component. The analysis of the viscosity data showed that these cannot be solely explained on the basis of the interactions between the present molecules/ions and that the factors also related to entropy - size and packing of molecules - must be considered as well. Thus, excess molar Gibbs free energy of activation of viscous flow appeared as very important for a complete description of the current viscosity behavior.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Fluid Phase Equilibria", title = "Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies", pages = "109-100", volume = "352", doi = "10.1016/j.fluid.2013.05.013" }
Vuksanović, J., Calado, M. S., Ivaniš, G., Kijevčanin, M., Šerbanović, S. P.,& Višak, Z. P.. (2013). Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies. in Fluid Phase Equilibria Elsevier Science Bv, Amsterdam., 352, 100-109. https://doi.org/10.1016/j.fluid.2013.05.013
Vuksanović J, Calado MS, Ivaniš G, Kijevčanin M, Šerbanović SP, Višak ZP. Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies. in Fluid Phase Equilibria. 2013;352:100-109. doi:10.1016/j.fluid.2013.05.013 .
Vuksanović, Jelena, Calado, Marta S., Ivaniš, Gorica, Kijevčanin, Mirjana, Šerbanović, Slobodan P., Višak, Zoran P., "Environmentally friendly solutions of liquid poly(ethylene glycol) and imidazolium based ionic liquids with bistriflamide and triflate anions: Volumetric and viscosity studies" in Fluid Phase Equilibria, 352 (2013):100-109, https://doi.org/10.1016/j.fluid.2013.05.013 . .