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Emulsion Polymerization of Styrene Mediated by TEMPO at Low Temperature
Author(s) -
Montezuma German G. C.,
Contant Sheila,
Lona Liliane Maria Ferrareso
Publication year - 2012
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.201200037
Subject(s) - emulsion polymerization , styrene , emulsion , polymerization , polymer , polymer chemistry , materials science , chemical engineering , copolymer , composite material , engineering
NMRP is a controlled polymerization technique with the ability to produce polymers with a highly controlled microstructure. The properties of the thus obtained polymers make it desirable to scale this technique to an industrial level, but there are still some challenges to be faced, e.g., to develop emulsion NMRP at low temperatures (lower than about 100 °C) with inexpensive, commercially available nitroxides such as TEMPO. Here, the emulsion NMRP of styrene using TEMPO at temperatures lower than 100 °C is described. An optimal control of molecular weights and polydispersities and a fast polymerization rate are obtained.