TY - JOUR
T1 - Physicochemical properties of glycine-based ionic liquid [QuatGly-OEt][EtOSO 3] (2-ethoxy-1-ethyl-1,1-dimethyl-2- oxoethanaminium ethyl sulfate) and its binary mixtures with poly(ethylene glycol) (M w = 200) at various temperatures
AU - Wu, Tzi Yi
AU - Chen, Bor Kuan
AU - Hao, Lin
AU - Lin, Yuan Chung
AU - Paul Wang, H.
AU - Kuo, Chung Wen
AU - Sun, I. Wen
PY - 2011/12
Y1 - 2011/12
N2 - This work includes specific basic characterization of synthesized glycine-based Ionic Liquid (IL) [QuatGly-OEt][EtOSO 3] by NMR, elementary analysis and water content. Thermophysical properties such as density, ρ, viscosity, η, refractive index, n, and conductivity, κ, for the binary mixture of [QuatGly-OEt][EtOSO 3] with poly(ethylene glycol) (PEG) (M w = 200) are measured over the whole composition range. The temperature dependence of density and dynamic viscosity for neat [QuatGly-OEt][EtOSO 3] and its binary mixture can be described by an empirical polynomial equation and by the Vogel-Tammann-Fucher (VTF) equation, respectively. The thermal expansion coefficient of the ILs is ascertained using the experimental density results, and the excess volume expansivity is evaluated. The negative values of excess molar volume for the mixture indicate the ion-dipole interactions and packing between IL and PEG oligomer. The results of binary excess property (V E m) and deviations (δη,δ xn, δ φ, δ xR, and δ φR) are discussed in terms of molecular interactions and molecular structures in the binary mixture.
AB - This work includes specific basic characterization of synthesized glycine-based Ionic Liquid (IL) [QuatGly-OEt][EtOSO 3] by NMR, elementary analysis and water content. Thermophysical properties such as density, ρ, viscosity, η, refractive index, n, and conductivity, κ, for the binary mixture of [QuatGly-OEt][EtOSO 3] with poly(ethylene glycol) (PEG) (M w = 200) are measured over the whole composition range. The temperature dependence of density and dynamic viscosity for neat [QuatGly-OEt][EtOSO 3] and its binary mixture can be described by an empirical polynomial equation and by the Vogel-Tammann-Fucher (VTF) equation, respectively. The thermal expansion coefficient of the ILs is ascertained using the experimental density results, and the excess volume expansivity is evaluated. The negative values of excess molar volume for the mixture indicate the ion-dipole interactions and packing between IL and PEG oligomer. The results of binary excess property (V E m) and deviations (δη,δ xn, δ φ, δ xR, and δ φR) are discussed in terms of molecular interactions and molecular structures in the binary mixture.
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U2 - 10.3390/ijms12128750
DO - 10.3390/ijms12128750
M3 - Article
C2 - 22272102
AN - SCOPUS:84055176268
SN - 1661-6596
VL - 12
SP - 8750
EP - 8772
JO - International journal of molecular sciences
JF - International journal of molecular sciences
IS - 12
ER -