Free-radical polymerization induced macrophase separation in poly(methyl methacrylate)/dimethacrylate blends: experiment and modeling
- Schroeder, Walter Fabian
- Aranguren, Mirta Ines
- Elicabe, Guillermo Enrique
- Borrajo Fernandez, Julio
DOIAbstract
This work presents the analysis of a polymerization-induced macrophase separation taking place during free-radical copolymerization of styrene and dimethacrylate in the presence of poly(methyl methacrylate) (PMMA) as a modifier. The PMMA does not participate in the polymerization but induces phase separation in the course of the reaction. An experimental study based on real-time static light scattering measurements with the aim of monitoring the phase behavior during the isothermal copolymerization is firstly presented. Then, an original and innovative contribution is made by modeling the evolution of the unstable region of the phase diagram as a function of conversion and by predicting phase separation in spinodal condition. The analysis i...
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