Molecular Association Studies on Polyvinyl Alochol At 303k

摘要

Ultrasonic velocity(u), density(ρ) and viscosity(η) have been measured for the aqueous solution of Polyvinyl alcohol. PVA is mixed with triply distilled water and acoustical parameters has been calculated for different concentration at 303k. From the experimental data, the acoustical and thermodynamic parameters are calculated. These acoustical parameters are used to study the nature and the strength of the molecular interactions. The stability constant values shows that the system is stable and stability is lost when the concentration of polymer is increased, thereby weakening the bond.