Polymerization of methyl methacrylate in the presence of a nonpolar hydrocarbon solvent. I. Construction of a complete ternary phase diagram through anin situpolymerization
| Autor: | Yunju Jung, Kyu Yong Choi, Carla Vanesa Luciani, Joong Jin Han |
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| Rok vydání: | 2010 |
| Předmět: |
Dispersion polymerization
Polymers and Plastics Chemistry Radical polymerization General Chemistry Poly(methyl methacrylate) Surfaces Coatings and Films chemistry.chemical_compound Chain-growth polymerization Polymerization Chemical engineering visual_art Polymer chemistry Materials Chemistry Precipitation polymerization visual_art.visual_art_medium Methyl methacrylate In situ polymerization |
| Zdroj: | Journal of Applied Polymer Science. |
| ISSN: | 1097-4628 0021-8995 |
| Popis: | This article presents the ternary phase diagram for methyl methacrylate (MMA), poly(methyl methacrylate) (PMMA), and n-hexane system at 70°C. It was constructed by both theoretical calculations and online laser light scattering (LLS) technique. In situ polymerization of MMA in a nonpolar nonsolvent carried out in a LLS cell provides a new means for the accurate detection of the cloud points of highly viscous polymer mixtures, with polymer weight fractions over 0.6. The ternary phase diagram measured in this study can be used to design the reaction conditions for the precipitation and/or dispersion polymerization in a nonpolar nonsolvent medium where polymerization kinetics as well as polymer particle morphologies are strongly affected by thermodynamic phase separation phenomena. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
| Databáze: | OpenAIRE |
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