Ultrasonic studies of polysaccharide (pectin) in aqueous media at 298.15 K |
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Authors: | S. Nithiyanantham L. Palaniappan |
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Affiliation: | 1.School of Physical Sciences and Nano Technology (Ultrasonics Division),SRM University,Kattankulathur, Tamil nadu,India;2.Department of Physics (DDE),Annamalai University,Annamalai Nagar, Tamil nadu,India |
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Abstract: | The ultrasonic velocity, density and viscosity of pectin in aqueous medium were measured at 298.15 K. The acoustical parameters such as adiabatic compressibility (β), free length (L f), free volume (V f), internal pressure (πi), acoustical impedance (Z), and relative association (R A), Rao’s constant (R) and Wada’s constant (W) are calculated. The results are interpreted in terms of molecular interaction between the components of the mixtures. Further, some more acoustical parameters such as relaxation time (τ), absorption coefficient (α/f 2) and relaxation strength (r) are calculated with various percentage of pectin has been studied which reveals interaction between the solvent and the polymer (pectin) at various concentration of the polymer. The observed values suggested the solute-solvent interaction is favored. |
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