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Miscibility Study Of Polymer Blend By Viscosity, Ultrasonic Velocity, And Refractive Index Measurements

John Kathi, S.Venkata Naidu

Miscibility studies of unsaturated polyester resin-poly(methyl methacrylate) (UPR-PMMA) blend in chloroform were carried out in different percentages of the blend components. The viscosity, ultrasonic velocity, and refractive index methods were employed for the miscibility studies at 300C. The interaction parameters have been obtained using the viscosity data to probe the miscibility. These values indicated that the UPRPMMA blend is miscible. This was confirmed by the ultrasonic velocity and refractive index methods.