Ultrasonic,refractometric, and viscosity studies of some polymer blends in solution |
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| Authors: | A Varada Rajulu R Lakshminarayana Reddy Siddaramaiah |
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| Affiliation: | 1. Department of Polymer Science and Technology, Sri Krishnadevaraya University, Anantapur 515 003, India;2. Department of Polymer Science and Technology, S. J. College of Engineering, Mysore 570 006, India |
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| Abstract: | Miscibility studies of poly(vinyl pyrrolidone)–polystyrene and poly(vinyl pyrrolidone)–poly(methyl methacrylate) in mixed common solvent (dimethyl formamide + 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. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 1823–1827, 1998 |
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| Keywords: | polymer blends ultrasonic velocity viscosity refractive index miscibility |
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