INV SUPERIOR JUBILADO
MEIRA Gregorio Raul
artículos
Título:
Emulsion Polymerization of Isoprene. Mathematical Model for Long-Chain Branching
Autor/es:
RODRÍGUEZ, V.I.; MINARI, R. J.; ESTENOZ, D. A.; GUGLIOTTA, L. M.; G.R. MEIRA
Revista:
JOURNAL OF APPLIED POLYMER SCIENCE
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2013 vol. 127 p. 1038 - 1046
ISSN:
0021-8995
Resumen:
For a batch emulsion polymerization of isoprene at 10C in the presence of a chain transfer agent, a previous mathematical model (Minari et al., J. Appl. Polym. Sci. 2010, 116, 590) was extended for predicting the molecular weight distributions of all the generated long chain branched topologies; with each topology characterized by the number of tri- and tetra-functional branches per molecule. According to the new model predictions, at the reaction end the linear topology remains as the most abundant (with 40% of the total mass), followed by the single trifunctionally branched topology (with 20% of the total mass). The model can be used for developing strategies for controlling the distribution of branches/molecule, for estimating melt viscosities, etc.
