Rheological behavior of concentrated polystyrene solutions in good and in poor solvents
β Scribed by Tager, A. A. ;Dreval, V. E. ;Lutsky, M. S. ;Vinogradov, G. V.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2007
- Weight
- 535 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0449-2994
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π SIMILAR VOLUMES
Critical temperatures for polystyrene/methyl acetate (PS/MA) and polystyrene/ethyl formate (PS/EF) solutions were measured at positive (PS/MA, PS/EF) and negative (PS/MA) pressure. The results confirm that solvent quality is sensitive to pressure; some solvents, designated Q, at P nominal Γ 0, under
## Abstract The limits of linear viscoelastic behavior of polystyrene solutions have been investigated by subjecting them to largeβamplitude oscillatory strains, Ξ³~0~. At strains less than one we find that the dynamic storage modulus Gβ²(Ο,Ξ³~0~) and the dynamic loss modulus Gβ³(Ο,Ξ³~0~) decrease quadr