Acoustical parameters of poly(vinyl pyrr
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K. Chowdoji Rao; S. Venkata Naidu; A. Varada Rajulu
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Article
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1990
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Elsevier Science
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English
β 173 KB
Ultrasonic velocity, viscosity, density and refractive index measurements have been made for solutions for poly(vinyl pyrrolidone) (PVP; viscosity average molecular weight --40,000) in N,N-dimethyl formamide (DMF) at various concentrations and temperatures. The molar compressibility (ill specific ac