TY - JOUR
T1 - Preparation of hyperbranched polyacrylates by atom transfer radical polymerization, 4
T2 - The use of zero-valent copper
AU - Matyjaszewski, Krzysztof
AU - Pyun, Jeffrey
AU - Gaynor, Scott G.
PY - 1998/12
Y1 - 1998/12
N2 - The addition of zero-valent copper to the self-condensing vinyl polymerization (SCVP) of novel AB* (meth)acrylic monomers using atom transfer radical polymerization (ATRP) catalyst systems has allowed for their successful polymerization. Polymerization under homogeneous and heterogeneous catalyst conditions without additional Cu(0) were unsuccessful. The catalyst system that was designed comprised of Cu(I) bromide, 4,4‰-bis(5-nonyl)-2,2‰-bipyridine, and Cu(0) metal (powder or turning). From 1H NMR spectroscopy, the degree of branching was estimated for the acrylic polymers, DB = 0.48. The degree of branching could not be determined for methacrylates by this method due to overlapping signals in the 1H NMR spectra.
AB - The addition of zero-valent copper to the self-condensing vinyl polymerization (SCVP) of novel AB* (meth)acrylic monomers using atom transfer radical polymerization (ATRP) catalyst systems has allowed for their successful polymerization. Polymerization under homogeneous and heterogeneous catalyst conditions without additional Cu(0) were unsuccessful. The catalyst system that was designed comprised of Cu(I) bromide, 4,4‰-bis(5-nonyl)-2,2‰-bipyridine, and Cu(0) metal (powder or turning). From 1H NMR spectroscopy, the degree of branching was estimated for the acrylic polymers, DB = 0.48. The degree of branching could not be determined for methacrylates by this method due to overlapping signals in the 1H NMR spectra.
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U2 - 10.1002/(SICI)1521-3927(19981201)19:12<665::AID-MARC665>3.0.CO;2-V
DO - 10.1002/(SICI)1521-3927(19981201)19:12<665::AID-MARC665>3.0.CO;2-V
M3 - Article
AN - SCOPUS:0032276661
SN - 1022-1336
VL - 19
SP - 665
EP - 670
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 12
ER -