Investigation of critical concentrations of poly(vinyl pyrrolidone) in N, N-dimethylformamide by a viscosity technique
β Scribed by Cherif, Emna; Zoghlami, Ons; Othman, Tahar
- Book ID
- 125548037
- Publisher
- Taylor and Francis Group
- Year
- 2014
- Tongue
- English
- Weight
- 268 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0031-9104
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π SIMILAR VOLUMES
Poly(N-vinyl-2-pyrrolidone) (PVP) [2]/water [3] ternary [1]/VOSO 4 system interactions have been studied by viscometric and densitometric techniques. Preferential water absorption inside the macromolecular coil and preferential salt interaction with the polymer external domain were observed. The unp
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