Miscibility studies of HPMC/PVA blends in water by viscosity, density, refractive index and ultrasonic velocity method

Chandralekha Fadnis and Illiger, S. R. and Rao, K. P. and Demappa, T. (2008) Miscibility studies of HPMC/PVA blends in water by viscosity, density, refractive index and ultrasonic velocity method. Carbohydrate Polymers, 74 (4). 779 - 782. ISSN 1879-1344

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Official URL: https://doi.org/10.1016/j.carbpol.2008.04.036

Abstract

Hydroxy propyl methyl cellulose (HPMC)/polyvinyl alcohol (PVA) blends are edible polymer films used for food packing and directly in foodstuffs. However they are water-soluble in ordinary temperature and have good mechanical properties. The miscibility of HPMC/PVA blend in water was studied by viscosity, ultrasonic velocity, density and refractive index techniques at 30 and 50°C. Using viscosity data, the interaction parameters μ and α were calculated. These values revealed that HPMC/PVA blend is miscible when the HPMC content is more than 60 in the blend at 30 and 50°C. And also the result revealed that the change in temperature has no significant effect on the miscibility of HPMC/PVA polymer blend.

Item Type: Article
Uncontrolled Keywords: Blend, Density, Hydroxy propyl methylcellulose, Miscibility, Refractive index, Ultrasonic velocity, Viscosity
Subjects: M Polymer Science > Polymer Science
Divisions: PG Centre Mandya > Polymer Science
Depositing User: manjula User
Date Deposited: 16 Aug 2019 07:51
Last Modified: 16 Aug 2019 07:51
URI: http://eprints.uni-mysore.ac.in/id/eprint/6431

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