TY - JOUR
T1 - Synthesis of asymmetric difunctional initiators and their use in the preparation of block copolymers via ATRP and SFRP
AU - Tunca, U.
AU - Karliga, B.
AU - Ertekin, S.
AU - Ugur, A. L.
AU - Sirkecioglu, O.
AU - Hizal, G.
PY - 2001
Y1 - 2001
N2 - Novel asymmetric difunctional initiators 2-phenyl-2-[(2,2,6,6-tetramethylpiperidino)oxy]ethyl 2-bromo-2-methyl propanoate and of 2-phenyl-2-[(2,2,6,6-tetramethylpiperidino)oxy]ethyl 2-bromo propanoate were synthesized in a three-step reaction sequence and used in atom transfer radical polymerization (ATRP) of methyl methacrylate or tert-butyl acrylate leading to corresponding polymer with tempo moiety as chain end. These polymers were found to be efficient initiators for stable free radical polymerization (SFRP) of styrene. 1H NMR and g.p.c. studies of the obtained polymers show that block copolymers are readily formed as a result of combination of ATRP and SFRP mechanisms.
AB - Novel asymmetric difunctional initiators 2-phenyl-2-[(2,2,6,6-tetramethylpiperidino)oxy]ethyl 2-bromo-2-methyl propanoate and of 2-phenyl-2-[(2,2,6,6-tetramethylpiperidino)oxy]ethyl 2-bromo propanoate were synthesized in a three-step reaction sequence and used in atom transfer radical polymerization (ATRP) of methyl methacrylate or tert-butyl acrylate leading to corresponding polymer with tempo moiety as chain end. These polymers were found to be efficient initiators for stable free radical polymerization (SFRP) of styrene. 1H NMR and g.p.c. studies of the obtained polymers show that block copolymers are readily formed as a result of combination of ATRP and SFRP mechanisms.
KW - Asymmetric difunctional initiators
KW - Atom transfer radical polymerization
KW - Stable free radical polymerization
UR - http://www.scopus.com/inward/record.url?scp=0034974640&partnerID=8YFLogxK
U2 - 10.1016/S0032-3861(01)00235-X
DO - 10.1016/S0032-3861(01)00235-X
M3 - Article
AN - SCOPUS:0034974640
SN - 0032-3861
VL - 42
SP - 8489
EP - 8493
JO - Polymer
JF - Polymer
IS - 20
ER -