TY - JOUR
T1 - Atom transfer radical polymerization of 1,3-butadiene using novel CuBr/pyridine-2-carboxamide catalysts
AU - Heo, Seoung Uk
AU - Rhee, Gwang Hoon
AU - Lee, Dong Heon
AU - Kim, Jung Hee
AU - Choi, Dai Seung
AU - Lee, Do Weon
PY - 2006/3
Y1 - 2006/3
N2 - Atom transfer radical polymerization (ATRP) is one of the most successful methods to polymerize styrenes, (meth)acrylates, and a variety of other monomers in a controlled fashion. Novel ligands, 4-alkyl pyridine-2-carboxamides [R = methyl (4a), t-butyl (4b), H (4c)], have been prepared through the reaction of 4-alkyl-2-cyanopyridine with water in the presence of 0.4 mol% of base in ethanol solution. The living free radical polymerization of 1,3-butadiene was facile in the presence of the CuBr/4a catalytic system. Several effects, such as those of the ligand, solvent, and temperature, and a kinetic study of the ATRP of 1,3-butadiene (BD), were studied systematically. The optimum conditions for the ATRP of BD were [CuBr]o/[4a]o/[PEBr] o/[BD]o = 1:2:1:100 at 80°C in veratrole solution (w/w= 1:2); these conditions yielded well-defined polybutadiene (PBD) with a narrow molecular weight distribution (1.40).
AB - Atom transfer radical polymerization (ATRP) is one of the most successful methods to polymerize styrenes, (meth)acrylates, and a variety of other monomers in a controlled fashion. Novel ligands, 4-alkyl pyridine-2-carboxamides [R = methyl (4a), t-butyl (4b), H (4c)], have been prepared through the reaction of 4-alkyl-2-cyanopyridine with water in the presence of 0.4 mol% of base in ethanol solution. The living free radical polymerization of 1,3-butadiene was facile in the presence of the CuBr/4a catalytic system. Several effects, such as those of the ligand, solvent, and temperature, and a kinetic study of the ATRP of 1,3-butadiene (BD), were studied systematically. The optimum conditions for the ATRP of BD were [CuBr]o/[4a]o/[PEBr] o/[BD]o = 1:2:1:100 at 80°C in veratrole solution (w/w= 1:2); these conditions yielded well-defined polybutadiene (PBD) with a narrow molecular weight distribution (1.40).
KW - 1,3-Butadiene (BD)
KW - Atom transfer radical polymerization (ATRP)
KW - Catalyst
KW - Controlled/"living" radical polymerization
KW - Pyridine-2-carboxamide
UR - http://www.scopus.com/inward/record.url?scp=33645339813&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33645339813
SN - 1226-086X
VL - 12
SP - 241
EP - 247
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
IS - 2
ER -