Mathematical and Experimental Analysis of Ultrasound Velocity and Refractive Index in Binary Mixtures of Pharmaceutically Important Polymer—PEG 600

Padmanaban, R.; Venkatramanan, K.; Girivel, S.; Kasthuri, K.; Usharani, A.; Gayathri, A.; Vellaichamy, Roy

doi:10.1007/978-3-319-44890-9_57

Cited by 7 publications

(7 citation statements)

References 7 publications

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“…The parameters (R) and (W) are also called Rao's constant and Wada's constant, respectively. For many liquid mixtures, Rao's empirical relation has been extensively used and verified by number of workers [16,17]. Molar compressibility (W) is found to be useful in understanding molecular interactions and structures of pure liquids and their solutions.…”

Section: Study Of Variation In Adiabatic Compressibility Molarmentioning

confidence: 99%

Determination of Various Properties of Ethyl Actetate + n-Butanol Binary Mixture at Different Temperatures

Kaki¹,

Chandran²

2018

Asian J. Chem.

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The present study deals with the variations of ultrasonic velocity, density, viscosity, various acoustic and thermodynamic parameters such as adiabatic compressibility, intermolecular free length, molar volume, acoustic impedance, free volume, internal pressure, enthalpy and also excess thermodynamic properties for n-butanol with ethyl acetate as function of concentration and temperature. All the excess parameters are fitted into the Redlich-Kister equation. And also to compare the ultrasonic sound velocity in ethyl acetate with n-butanol mixture from various theoretical relations of Nomoto and Van Dael Vangeel. These properties can be effectively utilized as a qualitative study to predict the extent of molecular interactions between the components.

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Section: Study Of Variation In Adiabatic Compressibility Molarmentioning

confidence: 99%

Determination of Various Properties of Ethyl Actetate + n-Butanol Binary Mixture at Different Temperatures

Kaki¹,

Chandran²

2018

Asian J. Chem.

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“…The reason for this behavior may be due to the development of large frictional force between the layers of the solution [3]. Arrhenius expression [1] is valid for pure solvents and also for dilute polymer solutions. Activation energy is obtained from Arrhenius expression.…”

Section: Activation Energy Studiesmentioning

confidence: 99%

“…The increase in viscous relaxation indicates that viscous forces play a dominant role in the relaxation process. This indicates that the solution is highly ordered due to outstanding hydration and such solution generally absorbs more ultrasonic energy [1,5].…”

Section: Molecular Interaction Studiesmentioning

confidence: 99%

“…Acoustical and molecular interaction studies in polymer solutions have been the subject of research in recent years [1][2][3][4]. Ultrasonic and viscometry is the universally accepted technique to study the physical, chemical and thermodynamic properties of the polymeric solutions, liquids, liquid mixtures and electrolytic solutions and polymeric solutions [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…In the present work, density, viscosity, ultrasonic velocity and related thermodynamic and molecular interaction properties have been determined and the solute-solvent interactions for Polystyrene in toluene and 1,4-Dioxane at different concentrations have been studied at constant frequency (2MHz) at 303K. Measurement of ultrasonic velocity [1][2][3][4] has been effectively employed in understanding the molecular interaction properties in polymer solution.…”

Section: Introductionmentioning

confidence: 99%

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A Study on the Acoustic and Rheological Properties of Polystyrene in Different Solvents

Padmanaban¹,

Venkatramanan²,

Arumugam³

2018

IJCRR

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Polystyrene (PS) is a synthetic aromatic hydrocarbon polymer prepared from the monomer styrene. Polystyrene can be foamed or solid. General-purpose polystyrene is hard, clear and rather brittle. It is a low cast resin per unit weight. It is a rather poor barrier to oxygen and water vapour and has a relatively low melting point. Polystyrene is one of the most widely used plastics, the scale of its production being several million tonnes per year. Polystyrene can be naturally transparent, but can be coloured with colourants. Uses include protective packaging (such as packing peanuts and DVD and CD cases), bottles, trays, containers, lids, tumblers, disposable cutlery and in the making of models. In the present study an attempt has been made to compute the viscosity of Polystyrene (M.W: 35000) in toluene and 1,4-Dioxane at different concentrations (0.2%, 0.4%, 0.6%, 0.8% & 1.0%) at different temperatures (303 K, 308 K, 313 K & 318 K). From these experimental data, activation energy is calculated and the effect of solvent is analyzed. Density and ultrasonic velocity have been estimated for the above systems at 303K. From these experimental values, various molecular interaction parameters like free volume, internal pressure, viscous relaxation time, interatomic free length, etc. are calculated and discussed in terms of solute-solvent interactions.

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Acoustic, Rheological and Optical Properties of Binary Mixtures of Aqueous Solutions of PEG 200—A Comparative Analysis

Dhivya

Padmanaban

Gayathri

et al. 2020

Springer Proceedings in Materials

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Mathematical and Experimental Analysis of Ultrasound Velocity and Refractive Index in Binary Mixtures of Pharmaceutically Important Polymer—PEG 600

Cited by 7 publications

References 7 publications

Determination of Various Properties of Ethyl Actetate + n-Butanol Binary Mixture at Different Temperatures

Determination of Various Properties of Ethyl Actetate + n-Butanol Binary Mixture at Different Temperatures

A Study on the Acoustic and Rheological Properties of Polystyrene in Different Solvents

Acoustic, Rheological and Optical Properties of Binary Mixtures of Aqueous Solutions of PEG 200—A Comparative Analysis

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