Thermal characterization of polyethylene glycol 600 in liquid and solid phase and across the phase transition

Noel, Justine; Jannot, Yves; Métivier, Christel; Sgreva, Nicolò

doi:10.1016/j.tca.2022.179326

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…Patel et al have used an Anton-Paar DSA 5000 digital vibrating tube densimeter for the measurement of the density of PEG 600 with an estimated standard uncertainty of ±0.5 kg·m –3 . The deviations of the data set from Patel et al, such as the one obtained by Noel et al, agree very well with the correlation of the present results, all the deviations being less than 0.05%.…”

Section: Resultssupporting

confidence: 92%

“…0.1% increasing to a maximum of about 0.16% at 300 K, the lowest temperature of their measurements. Noel et al 17 measured the density of PEG 600 from room temperature to 373.15 K, using a DMA 5000 M instrument from Anton Paar. Noel et al 17 claim accuracy for their measurements of ±0.1 kg•m −3 .…”

Section: Resultsmentioning

confidence: 99%

“…Noel et al 17 measured the density of PEG 600 from room temperature to 373.15 K, using a DMA 5000 M instrument from Anton Paar. Noel et al 17 claim accuracy for their measurements of ±0.1 kg•m −3 . The agreement with the present correlation is very good being within 0.04% along the mutual temperature range of both measurements.…”

Section: Resultsmentioning

confidence: 99%

“…Deviations of the density, ρ, from the correlation eqs –. For PEG 200: green solid triangle, Ottani et al For PEG 600: purple open circle, Noel et al; yellow open diamond, Zhang et al; and blue open square, Patel et al …”

Section: Resultsmentioning

confidence: 99%

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Viscosity and Density Measurements of Poly(ethyleneglycol) 200 and Poly(ethyleneglycol) 600 at High Pressures

et al. 2022

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New measurements for the viscosity and density of poly(ethyleneglycol) 200 [PEG 200] and of poly(ethyleneglycol) 600 [PEG 600], at pressures up to 50 MPa, are presented. The temperature range of the measurements performed for PEG 200 was from 293 to 348 K and for PEG 600 was from 303 to 348 K. A vibrating wire viscometer operated in the steady-state mode was used to carry out the measurements with an estimated overall uncertainty less than U(η) = 0.02·η, for viscosities up to 68 mPa s, and less than U(η) = 0.026·η, for higher viscosities with a confidence level of 0.95 (k = 2). Complementary density measurements for both PEGs were performed in the same ranges of temperature and pressure as for the viscosity measurements, using an Anton Paar HP vibrating tube densimeter, with an estimated overall uncertainty of about U(ρ) = 0.002·ρ with a confidence level of 0.95 (k = 2). Moreover, pressure–viscosity coefficients were obtained for both PEGs. A method based on a dense hard-sphere fluid theory was used to correlate the viscosity data with the density, for both PEGs, with a deviation of the experimental results less than 1%. A modified Tait equation was used to correlate the density results with temperature and pressure.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Viscosity and Density Measurements of Poly(ethyleneglycol) 200 and Poly(ethyleneglycol) 600 at High Pressures

et al. 2022

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Ex‐Ante Optimal Design of Sustainable Phase Change Materials for Latent Heat Storage

Geroulis

Kokossis

Marcoulaki

2022

Chemie Ingenieur Technik

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Energy consumption for residential heating can be reduced using new insulation solutions in the form of phase change materials (PCMs) integrated within the building structure. This work proposes a framework for the optimal design of PCMs considering operational as well as sustainability aspects at the early stages of the material development process. The proposed framework applies computer-aided molecular design tools and considers a practical simulation model to calculate the functional performance of the PCM, as well as a variety of constraints to impose desirable bounds on the material thermophysical properties and its impact on environment and safety.

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Volumetric and ultrasonic studies of molecular interactions in binary mixtures of N,N-dimethylacetamide with some polyethylene glycols at temperatures from 293.15 to 323.15 K

Nidhi,

Nain

2024

Discov. Chem.

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The intermolecular interactions in N,N-dimethylacetamide (DMA) + polyethylene glycol (PEG) mixtures have been examined from the measurements of the densities, ρ and speeds of sound, u of DMA + PEG 200 or PEG 300 or PEG 400 or PEG 600 mixtures over the entire mole fraction range at temperatures, T = (293.15–323.15) K and atmospheric pressure. Various excess parameters, viz., excess molar volume, excess isentropic compressibility, excess intermolecular free length, excess speed of sound, excess molar isentropic compressibility and excess acoustic impedance were evaluated using measured data. These excess properties were correlated with the Redlich–Kister equation. In addition, the partial molar volume and compressibility; excess partial molar volume and compressibility of the components over the entire composition range; and partial molar volume and compressibility and excess partial molar volume and compressibility of the components at infinite dilution have also been calculated. These evaluated parameters have been interpreted by means of prevailing intermolecular interactions in these mixtures. The presence of strong intermolecular interactions among DMA and PEG molecules have been revealed from the evaluated parameters of these mixtures. The speeds of sound were predicted theoretically using scaled particle theory and compared with experimental values. FT-IR spectra of pure DMA, PEG 200 and their equimolar mixtures were also recorded and analysed for better understanding of prevailing intermolecular interaction.

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Thermal characterization of polyethylene glycol 600 in liquid and solid phase and across the phase transition

Cited by 11 publications

References 31 publications

Viscosity and Density Measurements of Poly(ethyleneglycol) 200 and Poly(ethyleneglycol) 600 at High Pressures

Viscosity and Density Measurements of Poly(ethyleneglycol) 200 and Poly(ethyleneglycol) 600 at High Pressures

Ex‐Ante Optimal Design of Sustainable Phase Change Materials for Latent Heat Storage

Volumetric and ultrasonic studies of molecular interactions in binary mixtures of N,N-dimethylacetamide with some polyethylene glycols at temperatures from 293.15 to 323.15 K

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