TY - JOUR
T1 - Importance of active-site reactivity and reaction conditions in the preparation of hyperbranched polymers by self-condensing vinyl polymerization
T2 - Highly branched vs. linear poly[4-(chloromethyl)styrene] by metal-catalyzed `living' radical polymerization
AU - Weimer, Marc W.
AU - Frechet, Jean M.J.
AU - Gitsov, Ivan
PY - 1998/1/1
Y1 - 1998/1/1
N2 - The self-condensing vinyl polymerization of 4-(chloromethyl)styrene using metal-catalyzed living radical polymerization catalyzed by CuCl/2,2′-bipyridyl was studied. Polymers with weight average molecular weights between 3×103 and 1.6×105 and different extents of branching were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. The weight suggested that, at a catalyst to monomer ratio of 0.01, an almost linear polymer was obtained while a high catalyst to monomer ratio favored the formation of a branched structure.
AB - The self-condensing vinyl polymerization of 4-(chloromethyl)styrene using metal-catalyzed living radical polymerization catalyzed by CuCl/2,2′-bipyridyl was studied. Polymers with weight average molecular weights between 3×103 and 1.6×105 and different extents of branching were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. The weight suggested that, at a catalyst to monomer ratio of 0.01, an almost linear polymer was obtained while a high catalyst to monomer ratio favored the formation of a branched structure.
UR - http://www.scopus.com/inward/record.url?scp=0032049935&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1099-0518(19980430)36:6<955::AID-POLA11>3.0.CO;2-K
DO - 10.1002/(SICI)1099-0518(19980430)36:6<955::AID-POLA11>3.0.CO;2-K
M3 - Article
AN - SCOPUS:0032049935
SN - 0887-624X
VL - 36
SP - 955
EP - 970
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 6
ER -