期刊
MACROMOLECULAR THEORY AND SIMULATIONS
卷 27, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mats.201700064
关键词
crosslinking; dispersion polymerization; kinetic modeling; RAFT polymerization; vinyl/divinyl copolymerization
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico) [CB 239364]
- DGAPA-UNAM [PAPIIT IG100815]
- Facultad de Quimica-UNAM [PAIP 5000-9078]
- DGTIC-UNAM [LANCAD-UNAM-DGTIC-316]
A kinetic model for the reversible addition-fragmentation chain transfer radical copolymerization of vinyl/divinyl monomers in supercritical carbon dioxide, using a multifunctional approach for polymer network formation, is presented. The process is assumed to proceed as a dispersion polymerization in three stages, with two phases: CO2- and polymer-rich phases. A simple model for partition of the main components within the two phases is used. Experimental data of monomer conversion, molar mass development, evolution of gel fraction, and swelling of the polymer network for a styrene/divinylbenzene system, at 80 degrees C and 300 bar, are used to validate the model. Good agreement between model predictions and experimental data is obtained.
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