Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Thangavelu Krithiga
Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai, IndiaPublications
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Research Article
Spectroscopic Investigation and Molecular Interactions Studies on Styrene-Ethylene-Butylene-Styrene in Toluene and Tetrahydrofuran Solution in Different Concentrations at 303K by Ultrasonic Method
Author(s): Subramanian Ravichandran*, Gheetha and Thangavelu Krithiga
Ultrasonic velocities and densities have been measured for the Styrene-Ethylene-Butylene–Styrene (SEBS) in Toluene and Tetrahydrofuran (THF) in different concentration at 303 K. Ultrasonic velocity has been measured using single frequency interferometer at 2 MHz (Model F-81). Adiabatic compressibility, intermolecular free length, acoustic impedance, surface tension and other acoustical parameters have been calculated to assess the SEBS-solvent interaction. It is seen that the ultrasonic velocity increases initially with the increase with concentration of SEBS and it reaches minimum value a mole fraction of 0.89527. The increase in velocity with concentrations suggests the increase in cohesive forces due to molecular interactions. The ultrasonic velocity is maximum and molecular free length is minimum at a mole fraction 1.455 of SEBS shows the closer packing molecular structure. .. Read More»
DOI: 10.4172/0975- 413X.16.5.504-514