TY - JOUR
T1 - Block copolymers by transformation of living anionic polymerization into controlled/"living" atom transfer radical polymerization
AU - Acar, Metin H.
AU - Matyjaszewski, Krzysztof
PY - 1999/5
Y1 - 1999/5
N2 - A method for the transformation of living anionic polymerization (LAP) to controlled/"living" atom transfer radical polymerization (ATRP) is reported and utilized for the preparation of block copolymers. The macroinitiators, polystyrene and polystyrene-block-pplyisoprene containing the 2-bromoisobutyryl end group (PS-Br, M̄n = 12200, M̄w/M̄n = 1.04; PS-b-PIP-Br, M̄n = 16800, M̄w/M̄n = 1.03), were prepared by LAP of styrene and styrene/isoprene, correspondingly, and suitable termination agents. These compounds were used as macroinitiators for controlled/"living" ATRP to prepare block copolymers with methyl acrylate (PS-6-PMA), butyl acrylate (PS-b-PBA), methyl methacrylate (PS-b-PMMA), a mixture of styrene and acrylonitrile (PS-b-P(S-r-AN)) and also chain extension with styrene (PS-b-PS and PS-b-PIP-b-PS). The block copolymers were characterized by means of size exclusion chromatography, 1H NMR and FT-IR spectroscopy.
AB - A method for the transformation of living anionic polymerization (LAP) to controlled/"living" atom transfer radical polymerization (ATRP) is reported and utilized for the preparation of block copolymers. The macroinitiators, polystyrene and polystyrene-block-pplyisoprene containing the 2-bromoisobutyryl end group (PS-Br, M̄n = 12200, M̄w/M̄n = 1.04; PS-b-PIP-Br, M̄n = 16800, M̄w/M̄n = 1.03), were prepared by LAP of styrene and styrene/isoprene, correspondingly, and suitable termination agents. These compounds were used as macroinitiators for controlled/"living" ATRP to prepare block copolymers with methyl acrylate (PS-6-PMA), butyl acrylate (PS-b-PBA), methyl methacrylate (PS-b-PMMA), a mixture of styrene and acrylonitrile (PS-b-P(S-r-AN)) and also chain extension with styrene (PS-b-PS and PS-b-PIP-b-PS). The block copolymers were characterized by means of size exclusion chromatography, 1H NMR and FT-IR spectroscopy.
UR - http://www.scopus.com/inward/record.url?scp=0000717449&partnerID=8YFLogxK
U2 - 10.1002/(sici)1521-3935(19990501)200:5<1094::aid-macp1094>3.0.co;2-i
DO - 10.1002/(sici)1521-3935(19990501)200:5<1094::aid-macp1094>3.0.co;2-i
M3 - Article
AN - SCOPUS:0000717449
SN - 1022-1352
VL - 200
SP - 1094
EP - 1100
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 5
ER -