Miscibility Studies of Hydroxypropyl Methylcellulose/Poly(ethylene glycol) Blend in Water by Viscosity, Density, Refractive Index and Ultrasonic Velocity Methods
Hadadi Yallappa, J. Sannappa, J. Srinivasa, T. Demappa
DOI:
Volume , Issue 2 | Pages: 10-12
Abstract
The miscibility of hydroxypropyl methylcellulose/poly(ethylene glycol) (HPMC/PEG) blends in water was studied
by viscosity, density, ultrasonic, velocity and refractive index techniques at laboratory temperature. Using viscosity
data, the interaction parameters ΔB, μ and α were calculated. These values revealed that HPMC/PEG blends are
immiscible at all compositions except 50/50 compositions at laboratory temperature. Hence, the blend system
HPMC/PEG is found to be partially miscible. In addition, the adiabatic compressibility βad and intermolecular
free length Lf were also computed.
Keywords
Blends Miscibility Interactions Ultrasonic velocity Refractive index.References
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Citation
Hadadi Yallappa, J. Sannappa, J. Srinivasa, T. Demappa. Miscibility Studies of Hydroxypropyl Methylcellulose/Poly(ethylene glycol) Blend in Water by Viscosity, Density, Refractive Index and Ultrasonic Velocity Methods. Indian J. Adv. Chem. Sci. -0001; (2):10-12.