Indian Journal of Science and Technology

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Measurements of Viscosity, Ultrasonic velocity, Refractive Index and SEM Studies of PEO/HPMC (Polyethylene oxide /Hydroxypropylmethylcellulose)blends in water were carried out for different blend compositions at 30°C and 50°C. Using the viscosity data,interaction parameters μ and α were computed to determine miscibility. These values revealed that PEO/HPMC blends were miscible when the HPMC content in the blend was 50% and above at 30°C and 50°C. The results were further confirmed by ultrasonic velocity, Refractive index measurements, and Morphological Studies.

Keywords

Polyethylene Oxide, Hydroxypropylmethylcellulose, Miscibility, Blends
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