EFFECT OF MALEIC ANHYDRIDE CONTENT ON THE RHEOLOGY AND PHASE BEHAVIOR OF POLY(STYRENE-co-MALEIC ANHYDRIDE)/POLY(METHYL METHACRYLATE) BLENDS

摘要

The thermo-rheological properties of lower critical solution temperature (LCST) poly(styrene-co-maleic anhydride) (SMA)/polymethyl methacrlylate (PMMA) blends, with varying amounts of maleic anhydride (MA) content (8%, 14% and 32% by weight) in the SMA component have been investigated, using differential scanning calorimetry and small amplitude dynamic oscillatory rheological methods. The effect of MA content on the phase behavior of SMA/PMMA blends has been determined. The resulting phase diagrams have been modeled using Flory-Huggins theory.