Excess volumes and dielectric properties for (methyl methacrylate + a branched alcohol) atT= 298.15 K andT= 308.15 K

Sastry, Nandhibatla V.; Patel, Shweta

doi:10.1006/jcht.2000.0707

Cited by 26 publications

(3 citation statements)

References 20 publications

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“…alcohols, esters, alkanes, ethers, ketones, amines, etc. The experimental density data of 271 binary mixtures was collected from the literature − and are reported in Table . The densities of 271 mixtures were reported at various mole fractions resulting in a total of 4679 mixture data points.…”

Section: Methodsmentioning

confidence: 99%

Application of QSPR to Mixtures

Ajmani

Rogers

Barley

et al. 2006

J. Chem. Inf. Model.

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In this paper we report an attempt to apply the QSPR approach for the analysis of data for mixtures. This is an extension of the conventional QSPR approach to the analysis of data for single molecules. The QSPR methodology was applied to a data set of experimental measured density of binary liquid mixtures compiled from the literature. The present study is aimed to develop models to predict the "delta" value of a mixture i.e., deviation of the experimental mixture density (MED) from the ideal, mole-weighted calculated mixture density (MCD). The QSPR was investigated in two perspectives (QMD-I and QMD-II) with respect to the creation of training and test sets. The study resulted in significant ensemble neural network and k-nearest neighbor models having statistical parameters r2, q2(10cv) greater than 0.9, and pred_r2 greater than 0.75. The developed models can be used to predict the delta and hence the density of a new mixture. The QSPR analysis shows the importance of hydrogen bond, polar, shape, and thermodynamic descriptors in determining mixture density, thus aiding in the understanding of molecular interactions important in molecular packing in the mixtures.

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Section: Methodsmentioning

confidence: 99%

Application of QSPR to Mixtures

Ajmani

Rogers

Barley

et al. 2006

J. Chem. Inf. Model.

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“…The studies involving ternary mixtures consisting of acrylic esters, alcohols, and hydrocarbons are essential and provide vital information useful for the efficient design of reactors for the transesterification process in which an acrylic ester is reacted with a chosen alcohol in an inert solvent media consisting of hydrocarbons. Systematic investigations on various thermophysical properties of acrylic esters + alcohols − and + hydrocarbons − and also alcohols + hydrocarbons − have been made in our laboratory. In an effort to extend our studies to ternary systems of the above components, we have recently reported the thermophysical properties of methyl methacrylate + propan-1-ol or butan-1-ol + hydrocarbons ( n -hexane, n -heptane, cyclohexane, benzene, and toluene) at T = 308.15 K. As far as we are aware, no experimental data on thermophysical properties of systems containing acrylic esters, 2-butoxyethanol, dibutyl ether, benzene, toluene, p -xylene, and so forth exist in the literature.…”

Section: Introductionmentioning

confidence: 99%

Densities, Excess Molar Volumes at T = (298.15 to 313.15) K, Speeds of Sound, Excess Isentropic Compressibilities, Relative Permittivities, and Deviations in Molar Polarizations at T = (298.15 and 308.15) K for Methyl Methacrylate + 2-Butoxyethanol or Dibutyl Ether + Benzene, Toluene, or p-Xylene

George

Sastry

2004

J. Chem. Eng. Data

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The experimental densities at T = (298.15 to 318.15) K, speeds of sound, and relative permittivities at T = (298.15 and 308.15) K are measured for the six ternary mixtures: methyl methacrylate (1) + 2-butoxyethanol (2) or dibutyl ether (2) + benzene (3), toluene (3), and p-xylene (3). Excess molar volumes, excess isentropic compressibilities, and deviations in molar polarizations are calculated. The above functions of ternary systems were also calculated using the data of constituent binary pairs and employing Redlich−Kister, Tsao and Smith, and Kohler equations. Compared to others, the Redlich−Kister equation has been found to reproduce the experimental excess molar volumes adequately, while excess isentropic compressibilities and deviations in molar polarizations of the above ternary mixtures could not be adequately calculated using the respective binary contributions.

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“…Previous studies have reported that the dielectric constant of isopropyl alcohol can range between 18.62 to 19.41 [42], [43], [44]. In this work, the sensitivity of the proposed microwave sensor was obtained using the average dielectric constant of isopropyl alcohol from the literature.…”

Section: Sensitivity Of the Csrrmentioning

confidence: 99%

Liquid Characterization of 2 GHz Complimentary Split Ring Resonator (CSRR) for Water Quality Applications

Sapuri,

Adzhar Mahmood,

Abd Rashid

et al. 2023

TEM Journal

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This study describes a complementary split-ring resonator (CSRR)-based planar microwave sensor. Its capability in detecting several samples which are based on the usual water contaminant in Malaysia was investigated. The CSRR sensor was designed with an unloaded resonant frequency of 2.0 GHz, and it was fabricated on an FR-4 substrate with a thickness of 1.6 mm and a dielectric constant of 4.3. The S-parameter responses of the sensor were measured under two conditions; i) unloaded and ii) loaded. For the latter, samples of tap water, salt water, isopropyl alcohol, filtered water and cooking oil were used to load the resonant element of the CSRR. The measurement result of unloaded CSRR shows that the designed sensor resonates at 1.99 GHz, which is in line with the simulation. The measurement results also showed that the presence of all samples caused the resonant frequency of the CSRR to shift, with filtered water and cooking oil showing the biggest frequency shifts (0.84 GHz and 0.96 GHz, respectively). A sensitivity analysis of the CSRR was carried out and it shows that it achieves 0.25% sensitivity. The proposed sensor may be a useful substitute for pricey commercial sensors for applications involving water quality because of the inexpensive materials and ease of fabrication.

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Excess volumes and dielectric properties for (methyl methacrylate + a branched alcohol) atT= 298.15 K andT= 308.15 K

Cited by 26 publications

References 20 publications

Application of QSPR to Mixtures

Application of QSPR to Mixtures

Densities, Excess Molar Volumes at T = (298.15 to 313.15) K, Speeds of Sound, Excess Isentropic Compressibilities, Relative Permittivities, and Deviations in Molar Polarizations at T = (298.15 and 308.15) K for Methyl Methacrylate + 2-Butoxyethanol or Dibutyl Ether + Benzene, Toluene, or p-Xylene

Liquid Characterization of 2 GHz Complimentary Split Ring Resonator (CSRR) for Water Quality Applications

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