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Photo-initiated post-polymerization in micellar system of amphiphilic poly(ethylene oxide) macromonomers |
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| Authors: | Ryuta Maruyama Mohd Maniruzzaman Seigou Kawaguchi Koichi Ito |
| Institution: | 1. Present Address: Rohm Hamamatsu Co., Ltd., 10 Sanwa-cho, Hamamatsu 435-0038, Japan;2. Present Address: Department of Applied Chemistry and Chemical Technology, Islamic University, P. O. University, Kushtia, 7003 Bangladesh;3. Present Address: Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan;4. Department of Materials Science, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441-8580, Japan |
| Abstract: | 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. |
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