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D. SAKAR1,* , F. CAKAR1, O. CANKURTARAN1, F. KARAMAN1
The miscibility criteria of a copolyester of bisphenol-A with terephthalic and isophthalic acids (50/50) (PAr) and polystyrene (PS) was investigated at 25 oC in dilute solutions by viscometric analysis. The intrinsic viscosity and viscometric parameters of this blend system were determined for several PAr/PS mixtures in compositions such as 80/20, 60/40, 40/60, 20/80 in chloroform solutions at several concentrations. The miscibility criteria on the basis of the sign of Δb, Δb` and Δ[η] which are the difference between their experimental and ideal values were calculated by applying theoretical equations proposed by Krigbaum–Wall, Catsiff–Hewett and Garcia et al. The parameters α and β were also evaluated. The data obtained from the viscometry studies showed that the prepared blends were immiscible in all the studied composition range.
Polyarylate, Polystyrene , Miscibility, Viscometry.
D. SAKAR, F. CAKAR, O. CANKURTARAN, F. KARAMAN, Miscibility criteria of blends of polystyrene/a copolyester of bisphenol-A with terephthalic and isophthalic acids by viscometric analysis, Optoelectronics and Advanced Materials - Rapid Communications, 3, 3, March 2009, pp.290-293 (2009).
Submitted at: Feb. 17, 2009
Accepted at: March 19, 2009
Optoelectronics and Advanced Materials - Rapid Communications
(2025): Impact Factor = 0.5 - Journal Citation Reports (Clarivate Analytics, 2026)
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