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Photo‐initiated post‐polymerization in micellar system of amphiphilic poly(ethylene oxide) macromonomers
Author(s) -
Maruyama Ryuta,
Maniruzzaman Mohd.,
Kawaguchi Seigou,
Ito Koichi
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200203)179:1<133::aid-masy133>3.0.co;2-3
Subject(s) - amphiphile , polymerization , ethylene oxide , macromonomer , polymer chemistry , materials science , poly ethylene , chemistry , ethylene , chemical engineering , copolymer , organic chemistry , polymer , catalysis , engineering
Aqueous micellar polymerization of amphiphilic poly(ethylene oxide) macromonomers carrying p ‐vinylphenylheptyl end‐group has been found to persist to proceed after turning‐off of the UV‐irradiation. Simulation of the kinetics revealed a high propagation rate constant coupled with a low termination constant, supporting a living‐like polymerization at the initial stage. Micellar copolymerization with equimolar styrene also proceeded after UV‐irradiation. Polymer molecular weights in MALLS‐SEC were also found to evolve with time after irradiation.