Volumetric properties of ternary mixtures of sulfolane with 2-alkoxyethanols and ethylene glycols at T=303.15K

Kinart, Cezary M.; Maj, Marta; Bald, Adam; Kinart, Zdzisław

doi:10.1016/j.molliq.2012.02.015

Cited by 8 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this regard, it would be helpful if one could predict the physicochemical properties of polydisperse PEGs based on the analysis of their exact composition. It should be noted that even the low average molar mass PEG 200 covers oligomers from mono- to nonaethylene glycol with tetra- and pentaethylene glycol being the most prominent components. , A perusal of the literature reveals that there are numerous reports on density and viscosity for the neat lowest oligomers diethylene glycol, ,,− ,− trietheylene glycol, ,− ,,,,− ,− ,− ,− and tetraethylene glycol, ,,…”

Section: Introductionmentioning

confidence: 99%

“…It should be noted that even the low average molar mass PEG 200 covers oligomers from mono-to nonaethylene glycol with tetra-and pentaethylene glycol being the most prominent components. 84,85 A perusal of the literature reveals that there are numerous reports on density and viscosity for the neat lowest oligomers diethylene glycol, 23,25,58−62,86−126 trietheylene glycol, 23,58−60,62,95,96,100−102,104−110,112−118,121−140 a n d t e t r a e t h y l e n e g l ycol, 62,95,100,101,[104][105][106][107]110,112,[116][117][118][120][121][122][123][124][125][126][129][130][131]140 ports are scarce or absent for pentaethyelene glycol 101,126 and higher oligomers. 101,126,141 As for self-diffusion coefficients, we are not aware of any reports on neat oligomers nor on polydisperse PEG.…”

Section: Introduction Polyethylene Glycol (Peg H−[o−ch 2 −Ch 2 ]mentioning

confidence: 99%

See 1 more Smart Citation

Densities, Viscosities, and Self-Diffusion Coefficients of Ethylene Glycol Oligomers

Hoffmann

Horowitz

Gutmann³

et al. 2021

J. Chem. Eng. Data

View full text Add to dashboard Cite

Polyethylene glycol (PEG) is gaining interest as an alternative green solvent in chemical synthesis and processing. This report presents density and viscosity data from 293.15 K to 358.15 K as well as self-diffusion coefficient data from 298.15 K to 358.15 K for oligomers of PEG from di-to nonaethylene glycol. The results were obtained by extrapolation from measurement series where water, the most common impurity in PEGs, was intentionally added in several increments. The obtained results are carefully compared to literature data, which are widely available only for density and viscosity, and only for the lower oligomers. Densities are found to be linearly dependent on temperatures for all studied oligomers. The temperature dependence of viscosity and self-diffusion coefficients show only slight deviations from the Arrhenius equation over the investigated temperature range. The activation energies obtained from the viscosity data agree well with the activation energies from the self-diffusion coefficient data and appear to be linearly dependent with respect to the number of ethylene oxide repeat units in the PEG oligomer. This linearity combined with the observation that the pre-exponential factor appears to be the same for all studied oligomers may serve as a tool to estimate viscosities and self-diffusion coefficients for higher oligomers within the investigated temperature range. The densities of the oligomers all fall within a rather narrow range without a clear trend in homologous series.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introduction Polyethylene Glycol (Peg H−[o−ch 2 −Ch 2 ]mentioning

confidence: 99%

Densities, Viscosities, and Self-Diffusion Coefficients of Ethylene Glycol Oligomers

Hoffmann

Horowitz

Gutmann³

et al. 2021

J. Chem. Eng. Data

View full text Add to dashboard Cite

show abstract

“…As reported by Kinart et al, excess volume could be affected by physical, chemical, and structural effects. For both ([2-HEA][Ac] + [BHEA][Ac]) and ([2-HEA][Ac] + [BHEA][Bu]) binary systems, a major change in V E is attributed to the structural effect.…”

Section: Resultsmentioning

confidence: 74%

“…37 These results confirm the relevant effect of steric factors in the behavior of excess volume with molecules with shapes closer to spheres leading to better molecular packing and to a larger value (in absolute) of V E . 26 As reported by Kinart et al, 38 4 depicts the parameters found for eq 3 of each system. Thermal Expansion Coefficient.…”

Section: Surface Tension Measurementsmentioning

confidence: 84%

“…In general, PIL viscosity is strongly governed by Coulomb forces, e.g., van der Waals interactions and hydrogen bonding. 38 Bonhote et al 51 demonstrated a direct relationship between PIL viscosity and anion charge delocalization that could lead to molecular interactions, based on weaker hydrogen bonds. If this effect is not overcome by increasing van der Waals interactions, the viscosity of the PIL is reduced.…”

Section: Surface Tension Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Binary Mixture of Double Protic Ionic Liquid: Density, Viscosity, Refractive Index, Surface Tension, and Derivative Properties

et al. 2021

View full text Add to dashboard Cite

This work presents density (ρ), dynamic viscosity (η), refractive index (n D ), and surface tension (γ) experimental data for three pure protic ionic liquids: 2-hydroxyethylammonium acetate ([2-HEA][Ac]), bis(2-hydroxyethyl)ammonium acetate ([BHEA][Ac]), and bis(2 hydroxyethyl)ammonium butyric ([BHEA][Bu]), along with experimental data for two binary systems, as follows: ([2-HEA][Ac] + [BHEA][Ac]) and ([2-HEA][Ac] + [BHEA][Bu]), at a temperature range of T = 278.15 to 343.15 K and atmospheric pressure (101.3 kPa). For the ([2-HEA][Ac] + [BHEA][Ac]) binary system, excess volume and refractive index deviation values are negative, while for the ([2-HEA][Ac] + [BHEA][Bu]) binary system are positive. For the first, there is a volume contraction, with higher probability of ion interactions. For the latter system, an expansive trend and lower ion interactions were found when compared to the ([2-HEA][Ac] + [BHEA][Ac]) system. Viscosity deviations values show a negative behavior for both binary systems studied. These results could indicate the predominance of dispersive forces. Furthermore, for the [2-HEA][Ac] + [BHEA][Ac] system, surface tension deviation values are positive. On the other hand, for the [2-HEA][Ac] + [BHEA][Bu] system this derivative property are negative. From these results, the [2-HEA][Ac] + [BHEA][Ac] binary system could be characterized by presenting prevalent dispersion forces and an unequal distribution of the mixture components between the bulk and interface.

show abstract

Density, refractive index, and excess properties of sulfolane and alkanediols binary mixtures at different temperatures

Mohammadi

Omrani

2017

J Therm Anal Calorim

View full text Add to dashboard Cite

Volumetric properties of ternary mixtures of sulfolane with 2-alkoxyethanols and ethylene glycols at T=303.15K

Cited by 8 publications

References 30 publications

Densities, Viscosities, and Self-Diffusion Coefficients of Ethylene Glycol Oligomers

Densities, Viscosities, and Self-Diffusion Coefficients of Ethylene Glycol Oligomers

Binary Mixture of Double Protic Ionic Liquid: Density, Viscosity, Refractive Index, Surface Tension, and Derivative Properties

Density, refractive index, and excess properties of sulfolane and alkanediols binary mixtures at different temperatures

Contact Info

Product

Resources

About