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Highly Efficient Cobalt‐Mediated Radical Polymerization of Vinyl Acetate
Author(s) -
Debuigne Antoine,
Caille JeanRaphaël,
Jérôme Robert
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200461333
Subject(s) - vinyl acetate , dispersity , polymerization , monomer , molar mass , molar ratio , polymer chemistry , radical polymerization , polymer , chemistry , vinyl polymer , cobalt , organic chemistry , catalysis , copolymer
Reversible end‐capping of the growing polymer chains to form dormant species (see scheme) lowers the radical concentration. Thus, cobalt( II ) acetylacetonate efficiently controls the bulk radical polymerization of vinyl acetate. The molar mass of the poly(vinyl acetate) increases linearly with monomer conversion, polydispersity is as low as 1.15, and polymerization can be resumed by preformed vinyl acetate oligomers. acac=acetylacetonate.