Compatibility and thermal studies of blends of PMMA 350000 in 1,4-dioxane by ultrasonic technique

Padmanaban, R.; Girivel, S.; Venkatramanan, K.

doi:10.1063/1.4946198

Cited by 1 publication

(1 citation statement)

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“…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]. The different acoustical parameters interpret the nature and strength of molecular interaction that exist in the system [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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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Section: Introductionmentioning

confidence: 99%