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.
TY - 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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