(1) Department of Chemical Engineering, Applied Rheology Center, Korea University, Anam-Dong, 136-701 Seoul, Korea
Abstract:
Rheological properties of the polystyrene (PS) and poly(methyl methacrylate) (PMMA) blends were studied by Advanced Rheometric
Expansion System (ARES). Storage modulus and loss modulus of the PS and PMMA blends were measured, and the interfacial tension
of the PS and PMMA blends were obtained with various emulsion models by using the storage modulus and loss modulus of the
blends. The value of interfacial tension estimated from the Palierne emulsion model was found to be 2.0 mN/m. Also, the interfacial
tension between PS and PMMA was calculated by a theoretical model. The values of interfacial tension of the PS and PMMA blends
obtained by the experiment and theoretical model were found to be in good agreement.