Open AccessAcoustical Parameters of Polyvinyl Alcohol
Author(s) -
Richa Saxena,
Sandeep Bhatt,
Manish Uniyal,
Shubra Nautiyal
Publication year - 2021
Publication title -
journal of mountain research/journal of mountain research
Language(s) - English
Resource type - Journals
eISSN - 2582-5011
pISSN - 0974-3030
DOI - 10.51220/jmr.v16i2.27
Subject(s) - polyvinyl alcohol , intermolecular force , acoustic impedance , ultrasonic sensor , viscosity , materials science , solvent , compressibility , aqueous solution , relaxation (psychology) , thermodynamics , analytical chemistry (journal) , chemistry , acoustics , composite material , organic chemistry , physics , molecule , psychology , social psychology
Ultrasonic investigation provides a wealth of information in understanding the intermolecular interaction of solute and solvent. An attempt has been made to measure density, viscosity and ultrasonic velocity of aqueous solution of polyvinyl alcohol of molecular weight approximately 140,000 at different temperatures 35οC, 40oC, 45οC, 50oC,55οC, 60oC, 65οC at 0.8% concentration. Ultrasonic velocity is measured using ultrasonic interferometer at 1 MHz frequency. The acoustical parameters like, adiabatic compressibility, acoustic impedance, intermolecular free length and relaxation time have been calculated at different temperatures. These parameters were used to understand thebehaviour of solute and solvent.