Ultrasonic, refractometric, and viscosity studies of some polymer blends in solution

✍ Scribed by A. Varada Rajulu; R. Lakshminarayana Reddy; Siddaramaiah

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 126 KB
• Volume: 70
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19981128)70:9<1823::aid-app21>3.0.co;2-7

✦ Synopsis

Miscibility studies of poly(vinyl pyrrolidone)-polystyrene and poly(vinyl pyrrolidone)-poly(methyl methacrylate) in mixed common solvent (dimethyl formamide ϩ cyclohexanone) have been carried out in different percentages of the blend components. The ultrasonic velocity, viscosity, density, and refractive index have been measured at 30°C. The interaction parameters have been obtained using the viscosity data to probe the miscibility. The obtained results have been confirmed by the ultrasonic velocity, density, and refractive index.