INTEC 05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Emulsion Polymerization of Styrene with iso-octyl-3-mercaptopropionate as Chain Transfer Agent
Autor/es:
MINARI, R. J.; VEGA, J. R.; GONZÁLEZ SIERRA, M.; MEIRA, G. R.; GUGLIOTTA, L. M.
Revista:
JOURNAL OF APPLIED POLYMER SCIENCE
Editorial:
J. Wiley & Sons
Referencias:
Año: 2007
ISSN:
0021-8995
Resumen:
Four batch and unseeded emulsion polymerizations of styrene were investigated, that included iso-octyl 3-mercaptopropionate (iOMP) as chain transfer agent (CTA). This compound was analysed by 13C NMR and GC/MS, resulting in a mixture of over 10 isomers. Due to the different reactivities of the CTA isomers, the produced polystyrenes presented broad and bimodal molecular weight distributions (MWDs). A mathematical model was adjusted to the measurements, and the measured MWDs were adequately predicted when assuming the CTA as a binary mixture of high but different reactivities.
