Miscibility studies on blends of poly(phenylene oxide)/brominated polystyrene by viscometry |
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Authors: | AZ Aroguz BM Baysal |
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Institution: | a Department of Chemistry, Faculty of Engineering, Istanbul University, 34850 Avcilar, Istanbul, Turkey b Department of Chemical Engineering, Bogazici University, 80815 Bebek, Istanbul, Turkey c TUBITAK-Marmara Research Center, PK 21, 41470 Gebze, Istanbul, Turkey |
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Abstract: | The viscosity behavior of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO), brominated polystyrene (PBrS) and their blends at several compositions (25/75, 50/50, 75/25, 85/15) has been studied. The miscibility of this polymer system was investigated on the basis of the sign of the criteria Δb, α, ΔK, μ, and Δη] determined by viscosity. These investigations indicate that PPO/PBrS is miscible at the compositions of (75/25), (85/15) and completely immiscible at the compositions of (25/75), (50/50) in chloroform at 20 °C. Results from viscometry match very well those of DSC results cited in the literature. |
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Keywords: | Blends Poly(phenylene oxide) Brominated polysytrene Viscometry Intrinsic viscosity Miscibility |
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