Laser light scattering was used to study the miscibility behavior of PMMA/SAN blends. These systems tend to phase separation at elevated temperatures, Above the lower critical solution temperature (LCST) a regular highly interconnected two-phase morphology is displayed. The region of stability of this structure is determined. Finally, the binary interactional parameter is estimated. It is negative due to the sufficiently repulsive intramolecular interactions relative to the repulsive intermolecular interactions.
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Kressler, J., Kammer, H.W. & Klostermann, K. Phase behavior of poly(methylmethacrylate) and poly(styrene-co-acrylonitrile) blends. Polymer Bulletin 15, 113–119 (1986). https://doi.org/10.1007/BF00263387
- Elevated Temperature
- Light Scattering
- Intermolecular Interaction
- Material Processing