"Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior
Authorized Users Only
2013
Authors
Calado, Marta S.Ivaniš, Gorica

Vuksanović, Jelena
Kijevčanin, Mirjana

Šerbanović, Slobodan P.
Višak, Zoran P.

Article (Published version)

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Liquid-liquid and solid-liquid phase behaviors of the binary solutions of imidazolium [C(2)mim](+) or trihexyltetradecyl phosphonium [P-6,P-6,P-6,P-14](+) ionic liquids having triflate [OTf](-), bistriflamide [NTf2](-) or ethyl-sulfate [EtSO4](-) anions with poly(ethylene glycol) (PEG) of average molecular mass (Mw) 200, 400 and 2050, were studied. The respective temperature-composition phase diagrams were constructed thus mapping the homogeneous and heterogeneous regions of the studied solutions. The impact of cation, anion and of PEG polymer chain length on the studied phase behavior was investigated and discussed in the terms of the important interactions in the solutions - hydrogen bonds and ion-dipole interactions. Imidazolium cation showed significant advantage over the phosphonium in promoting both liquid-liquid and solid-liquid solubility. On the other hand, the anion effect was found to be dependent on the outcome of the interplay between cation-anion and anion-PEG interaction...s. As expected, longer PEG chain led to worse solubility with the studied ionic liquids. This study is a first step to explore the possibilities to use the studied (PEG + ionic liquid) solutions as potential sustainable hybrid materials or combined (mixed) solvents of tunable thermophysical properties and/or solvent power.
Keywords:
Liquid-liquid equilibrium / Solid-liquid equilibrium / Sustainable solvents / Ionic liquids / Poly(ethylene glycol)Source:
Fluid Phase Equilibria, 2013, 344, 6-12Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Ministry of Science and Environmental Protection, 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]
DOI: 10.1016/j.fluid.2013.01.019
ISSN: 0378-3812
WoS: 000317538600002
Scopus: 2-s2.0-84875069527
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Calado, Marta S. AU - Ivaniš, Gorica AU - Vuksanović, Jelena AU - Kijevčanin, Mirjana AU - Šerbanović, Slobodan P. AU - Višak, Zoran P. PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2536 AB - Liquid-liquid and solid-liquid phase behaviors of the binary solutions of imidazolium [C(2)mim](+) or trihexyltetradecyl phosphonium [P-6,P-6,P-6,P-14](+) ionic liquids having triflate [OTf](-), bistriflamide [NTf2](-) or ethyl-sulfate [EtSO4](-) anions with poly(ethylene glycol) (PEG) of average molecular mass (Mw) 200, 400 and 2050, were studied. The respective temperature-composition phase diagrams were constructed thus mapping the homogeneous and heterogeneous regions of the studied solutions. The impact of cation, anion and of PEG polymer chain length on the studied phase behavior was investigated and discussed in the terms of the important interactions in the solutions - hydrogen bonds and ion-dipole interactions. Imidazolium cation showed significant advantage over the phosphonium in promoting both liquid-liquid and solid-liquid solubility. On the other hand, the anion effect was found to be dependent on the outcome of the interplay between cation-anion and anion-PEG interactions. As expected, longer PEG chain led to worse solubility with the studied ionic liquids. This study is a first step to explore the possibilities to use the studied (PEG + ionic liquid) solutions as potential sustainable hybrid materials or combined (mixed) solvents of tunable thermophysical properties and/or solvent power. PB - Elsevier Science Bv, Amsterdam T2 - Fluid Phase Equilibria T1 - "Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior EP - 12 SP - 6 VL - 344 DO - 10.1016/j.fluid.2013.01.019 ER -
@article{ author = "Calado, Marta S. and Ivaniš, Gorica and Vuksanović, Jelena and Kijevčanin, Mirjana and Šerbanović, Slobodan P. and Višak, Zoran P.", year = "2013", abstract = "Liquid-liquid and solid-liquid phase behaviors of the binary solutions of imidazolium [C(2)mim](+) or trihexyltetradecyl phosphonium [P-6,P-6,P-6,P-14](+) ionic liquids having triflate [OTf](-), bistriflamide [NTf2](-) or ethyl-sulfate [EtSO4](-) anions with poly(ethylene glycol) (PEG) of average molecular mass (Mw) 200, 400 and 2050, were studied. The respective temperature-composition phase diagrams were constructed thus mapping the homogeneous and heterogeneous regions of the studied solutions. The impact of cation, anion and of PEG polymer chain length on the studied phase behavior was investigated and discussed in the terms of the important interactions in the solutions - hydrogen bonds and ion-dipole interactions. Imidazolium cation showed significant advantage over the phosphonium in promoting both liquid-liquid and solid-liquid solubility. On the other hand, the anion effect was found to be dependent on the outcome of the interplay between cation-anion and anion-PEG interactions. As expected, longer PEG chain led to worse solubility with the studied ionic liquids. This study is a first step to explore the possibilities to use the studied (PEG + ionic liquid) solutions as potential sustainable hybrid materials or combined (mixed) solvents of tunable thermophysical properties and/or solvent power.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Fluid Phase Equilibria", title = ""Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior", pages = "12-6", volume = "344", doi = "10.1016/j.fluid.2013.01.019" }
Calado, M. S., Ivaniš, G., Vuksanović, J., Kijevčanin, M., Šerbanović, S. P.,& Višak, Z. P.. (2013). "Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior. in Fluid Phase Equilibria Elsevier Science Bv, Amsterdam., 344, 6-12. https://doi.org/10.1016/j.fluid.2013.01.019
Calado MS, Ivaniš G, Vuksanović J, Kijevčanin M, Šerbanović SP, Višak ZP. "Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior. in Fluid Phase Equilibria. 2013;344:6-12. doi:10.1016/j.fluid.2013.01.019 .
Calado, Marta S., Ivaniš, Gorica, Vuksanović, Jelena, Kijevčanin, Mirjana, Šerbanović, Slobodan P., Višak, Zoran P., ""Green Meets Green" - Sustainable solutions of imidazolium and phosphonium ionic liquids with poly(ethylene glycol): Solubility and phase behavior" in Fluid Phase Equilibria, 344 (2013):6-12, https://doi.org/10.1016/j.fluid.2013.01.019 . .
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