Abstract
The miscibility of polystyrene and poly(styrene-co-acrylonitrile) blend in tetrahydrofuran was investigated by viscometric, density, and refractometric methods over an extended range of concentration, composition, and temperature. The miscibility of the polymer blend was investigated on the basis of the sign of the interaction parameters α, β, μ, ΔB, and Δ[η]m. The results from the viscosity method were correlated with the miscibility data obtained for the same blend by refractive index and density methods. These investigations indicated that the examined blend was immiscible over the investigated composition and temperature range.
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