Investigation on some thermophysical properties of poly(ethylene glycol) binary mixtures at different temperatures

Moosavi, Mehrdad; Motahari, Ahmad; Omrani, Abdollah; Rostami, Abbas Ali

doi:10.1016/j.jct.2012.11.016

Cited by 44 publications

(41 citation statements)

References 70 publications

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“…The only set of measurements, with a reported water content (< 0.02 wt%), where we observe larger deviations, is that of Mjalli and Ahmed 69 . Their values are 13-21% lower than our values in the temperature range 293-333 K. 54 (solid, red, up triangle), Sun et al 55 (solid, red, down triangle), Carvalho et al 56 (solid, red diamond), Quijada et al 57 (solid, red, right-pointing triangle); (ii) 1,3-propanediol by Živković and co-workers 49,58,59 (solid, blue pentagon), Moosavi et al 51 (solid, blue square); (iii) 1,4-butanediol by Nain et al 68 (solid, green circle), Moosavi et al 51 (solid, green square), Saleh et al 70…”

Section: Density and Viscosity Measurementscontrasting

confidence: 50%

“…of (a) glycols and (b) DES. Literature data was reported for: (i) ethylene glycol by Zhao et al 54 (solid, red, up triangle), Sun et al 55 (solid, red, down triangle), Carvalho et al 56 (solid, red diamond), and Quijada et al 57 (solid, red, left-pointing triangle); (ii) 1,3propanediol by Živković and co-workers 49,58,59 (solid, blue pentagon), and Moosavi et al 51 (solid, blue square); (iii) 1,4-butanediol by Grineva and Zhuravlev 60 (green bar), Moosavi et al 51 (solid, green square), Czechowski et al 52 (solid, green hexagon), and Yang et al 50 53 (open, red diamond), Shahbaz and coworkers 64,65 (open, red, right-pointing triangle), Abbott et al 66 (open, red pentagon), Ozturk et al 20 (open, red star), and Gajardo-Parra et al 13 (red bubbled circle); (v) DES-A2 by Ozturk et al 20 (open, blue star), and Abbott et al 66 Viscosity data obtained in this work were compared with literature for ethylene glycol, 1,3propanediol, and 1,4-butanediol, as shown in Figure 4(a), and with DES-A, DES-B, and DES-D in Figure 4(b). The agreement with glycol literature data, see Figure 4(a), is on average within 4%, with only 4 data points showing larger deviations of up to -5.6%.…”

Section: Density and Viscosity Measurementsmentioning

confidence: 96%

“…, measured in this work from the literature values, 𝜂𝜂 lit. of (a) glycols and (b) DES Literature data was reported for: (i) ethylene glycol by Zhao et al54 (solid, red, up triangle), Sun et al55 (solid, red, down triangle), Carvalho et al56 (solid, red diamond), Quijada et al57 (solid, red, right-pointing triangle); (ii) 1,3-propanediol by Živković and co-workers49,58,59 (solid, blue pentagon), Moosavi et al51 (solid, blue square); (iii) 1,4-butanediol by Nain et al68 (solid, green circle), Moosavi et al51 (solid, green square), Saleh et al70 (green cross) and Yang et al50 (green plus); (iv) DES-A1 by Harifi-Mood et al 62 (open, red, up triangle), Mjalli and Abdel Jabbar 71 (open, red diamond), Ozturk et al 20 (open, red star), Gajardo-Parra et al 13 (red, bubbled circle), Abbott et al 66 (open, red pentagon), Mjalli and Ahmed 69 (open, red diamond), and Gurkan et al 18 (red dash); (v) DES-A2 by Ozturk et al 20 (open, blue star), and Abbott et al 66 (open, blue pentagon); (vi) DES-A3 by Ozturk et al 20 (open, green star); (vii) DES-B1 by Vuksanović et al 67 (cyan cross); (viii) DES-D1 by Abbott et al 66 (open, orange pentagon) and (ix) DES-D2 by Abbott et al 66 (open, black pentagon).…”

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confidence: 99%

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Viscosity of Choline Chloride-Based Deep Eutectic Solvents: Experiments and Modeling

et al. 2020

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Deep eutectic solvents (DES) have emerged as promising 'green' solvents, but their successful industrial application requires relatively low viscosity. DES prepared from choline chloride and glycols offer such possibility. Viscosity and density are reported for a number of DES obtained by mixing choline chloride and a glycol (ethylene glycol, 1,2-propanediol, 1,3-propanediol, and 1,4-butanediol). The measurements were performed at 101.3 kPa, at temperatures between 293.15 K and 333.15 K, and for different mole ratios of the glycol and choline chloride. The viscosity was measured with a capillary viscometer, while the density was measured by means of a vibrating U-tube densimeter. The density and viscosity data have expanded relative uncertainties of 0.2% and 2.0%, respectively, with a coverage factor of 2. The viscosity of pure glycols was modeled using the extended hard-sphere (EHS) model that has its basis in kinetic theory and the molecular description of the fluid. Each DES was treated as a binary mixture, and the EHS model was used, with a mole average mixing rule, to calculate its viscosity. The measured DES viscosity data were represented with the average absolute deviation of 1.4% and a maximum deviation of 7%.

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Section: Density and Viscosity Measurementscontrasting

confidence: 50%

Section: Density and Viscosity Measurementsmentioning

confidence: 96%

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Viscosity of Choline Chloride-Based Deep Eutectic Solvents: Experiments and Modeling

et al. 2020

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“…A λ max red-shift of 20 nm was observed in the absorption spectrum with respect to the liquid ink, blue line in Figure 4A. This is attributable to local refractive index changes, as after drying AuNP are no more dispersed in a water/alcohols mixture but surrounded by the PEG chains, that have an higher refractive index than water (eg n D = 1.45 for PEG 200 [23]. AuNP surface wetting by residual ethylene glycol (n D = 1.43) from the ink formulation should be also taken into account, due to its higher boiling point (197.6 • C) with respect to water and 2-propanol (82.5 • C).…”

Section: Aunps Coated With Neutral Hs-peg Of Different Lengthsmentioning

confidence: 94%

Suitable Polymeric Coatings to Avoid Localized Surface Plasmon Resonance Hybridization in Printed Patterns of Photothermally Responsive Gold Nanoinks

et al. 2020

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When using gold nanoparticle (AuNP) inks for writing photothermal readable secure information, it is of utmost importance to obtain a sharp and stable shape of the localized surface plasmon resonance (LSPR) absorption bands in the prints. The T increase at a given irradiation wavelength (ΔTλ) is the retrieved information when printed patterns are interrogated with a laser source. As ΔTλ is proportional to the absorbance at the wavelength λ, any enlargement or change of the absorbance peak shape in a printed pattern would lead to wrong or unreliable reading. With the aim of preparing AuNP inks suitable for inkjet printing of patterns with stable and reliable photothermal reading, we prepared liquid solutions of spherical AuNP coated with a series of different polymers and with or without additional dispersant. The optical stability of the inks and of the printed patterns were checked by monitoring the shape changes of the sharp LSPR absorption band of AuNP in the visible (λmax 519 nm) along weeks of ageing. AuNP coated with neutral polyethylenglycol thiols (HS-PEG) of mw 2000–20000 showed a strong tendency to rapidly agglomerate in the dry prints. The close contact between agglomerated AuNP resulted in the loss of the pristine shape of the LSPR band, that flattened and enlarged with the further appearance of a second maximum in the Near IR, due to plasmon hybridization. The tendency to agglomerate was found directly proportional to the PEG mw. Addition of the ethylcellulose (EC) dispersant to inks resulted in an even stronger and faster tendency to LSPR peak shape deformation in the prints due to EC hydrophobicity, that induced AuNP segregation and promoted agglomeration. The introduction of a charge on the AuNP coating revelead to be the correct way to avoid agglomeration and obtain printed patterns with a sharp LSPR absorption band, stable with ageing. While the use of a simple PEG thiol with a terminal negative charge, HS-PEGCOO(−) (mw 3000), was not sufficient, overcoating with the positively charged polyallylamine hydrochloride (PAH) and further overcoating with the negatively charged polystyrene sulfonate (PSS) yielded AuNP@HS-PEGCOO(−)/PAH(+) and AuNP@HS-PEGCOO(−)/PAH(+)/PSS(−), both giving stable prints. With these inks we have shown that it is possible to write photothermally readable secure information. In particular, the generation of reliable three-wavelength photothemal barcodes has been demonstrated.

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“…The various predictive viscosity models employed are Bingham [7], Frenkel [8,17], Kendall-Munroe [17], Hind-Ubbelhode [23], Eyring [17], Gambill [24,25], Refutas [26] and SutherlandWassiljewa [17,27] relation. Seven correlative methods have also been employed viz., Hind [13,[28][29][30], Grunberg-Nissan, Wijk [13,31], KattiChaudhri, Tamura-Kurata [15,32], McAllister 3 body [16] and 4 body [13,33] models.…”

Section: Introductionmentioning

confidence: 99%

Viscometric investigation of binary, ternary and quaternary liquid mixtures: Comparative evaluation of correlative and predictive models

Dey

Harshavardhan

Verma

2015

Journal of Molecular Liquids

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Investigation on some thermophysical properties of poly(ethylene glycol) binary mixtures at different temperatures

Cited by 44 publications

References 70 publications

Viscosity of Choline Chloride-Based Deep Eutectic Solvents: Experiments and Modeling

Viscosity of Choline Chloride-Based Deep Eutectic Solvents: Experiments and Modeling

Suitable Polymeric Coatings to Avoid Localized Surface Plasmon Resonance Hybridization in Printed Patterns of Photothermally Responsive Gold Nanoinks

Viscometric investigation of binary, ternary and quaternary liquid mixtures: Comparative evaluation of correlative and predictive models

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