Viscosity, Ultrasonic Velocity and Refractive Index Study of Chitosan/PVA Blend in Aqueous Acetic Acid Solutions at Three Distinct Temperatures

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Viscosity, Ultrasonic Velocity and Refractive Index Study of Chitosan/PVA Blend in Aqueous Acetic Acid Solutions at Three Distinct Temperatures

Issue 2 (April-June) Author(s): B. Saleha Begum, H. Sudhakar and B. Ashraf Ahamed Thursday, 01 June 2017 23:42 font size decrease font size increase font size

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Bull. Chem. Pharma Res., 2017, 1(2), 45–48.

Abstract: Chitosan, a polysaccharide has many industrial applications and its miscibility studies with highly useful synthetic PVA has become a subject of current research interest. Hence the Viscosity, Ultrasonic velocity, and Refractive Index measurements were carried out for Chitosan, PVA, Chitosan/PVA blend of (50/50) composition in 2% aqueous Acetic acid solution at 30°C, 40°C and 50°C. The interactions in binary polymer systems were analyzed from the viscosity data by computing interaction parameters µ and α. These values revealed that the Chitosan is compatible with PVA. This was further confirmed by Ultrasonic velocity and Refractive index results. The miscibility behavior of Chitosan/PVA blend was also discussed by varying the temperature.