Solvent effects on the dielectric dispersion of poly(vinyl pyrrolidone)-poly(ethylene glycol) blends
β Scribed by R. J. Sengwa; Sonu Sankhla
- Book ID
- 106068788
- Publisher
- Springer
- Year
- 2007
- Weight
- 595 KB
- Volume
- 285
- Category
- Article
- ISSN
- 0340-255X
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π SIMILAR VOLUMES
This paper reports the results of a systematic study of microwave dielectric relaxation times of poly(ethylene glycols), average molecular weight 200Γ9000, in dilute solutions of benzene at 9Γ83 GHz. These results are compared with the values of relaxation times obtained earlier in carbon tetrachlor
## Abstract Dielectric relaxation study of binary mixtures of poly(vinyl pyrrolidone) (PVP) (__M__~w~ = 40 000 g mol^β1^) and poly(ethylene glycol)s (PEGs) (__M__~n~ = 200, 400 and 600 g mol^β1^) with concentration variation was carried out in dilute solutions of benzene at 10.1 GHz and 35 Β°C. The
Poly(vinyl acetate) (PVAc)/poly(ethylene oxide) (PEO) blends were prepared by casting from either benzene or chloroform. The solvent effects on the crystallization behavior and thermodynamic properties of the blends were studied by the differential scanning calorimeter (DSC). Two grades of PEO with
## Abstract Differential scanning calorimetry (DSC) of triple blends of high molecular weight poly(__N__βvinyl pyrrolidone) (PVP) with oligomeric poly(ethylene glycol) (PEG) of molecular weight 400 g/mol and copolymer of methacrylic acid with ethylacrylate (PMAAβ__co__βEA) demonstrates partial misc