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Title: Synthesis of Vinyl Ether-Based Polymacromonomers with Well-Controlled Structure (ORGANIC MATERIALS CHEMISTRY-Polymeric Materials)
Authors: Minoda, Masahiko
Yamada, Kenji
Miyazaki, Masayuki
Ohno, Kohji
Fukuda, Takeshi
Miyamoto, Takeaki
Keywords: Polymacromonomer
Living cationic polymerization
Controlled radical polymerization
Issue Date: Mar-1999
Publisher: Institute for Chemical Research, Kyoto University
Journal title: ICR annual report
Volume: 5
Start page: 30
End page: 31
Abstract: The present paper focuses on the atom transfer radical polymerization (ATRP) of vinyl ether (VE)- based macromonomers with a methacryloyl group at the chain end. Living cationic polymerization of isobutyl VE (IBVE) initiated with the HCl adduct of a VE carrying a pendant methacryloyl group in conjunction with ZnI2 yielded the macromonomer (MA-PIBVE) with a narrow molecular weight distribution (MWD) (Mw/Mn < 1.1). The ATRP of MA-PIBVE was carried out using a halide initiator and the CuBr/4,4,-di-n-heptyl-2,2,-bipyridine catalytic system. The number-average molecular weight of the polymacromonomer increased in proportion to the monomer conversion, while the MWDs stayed fairly narrow (Mw/Mn ~ 1.2). Thus polymacromonomers with controlled chain lengths for both the backbone and the side chain have been synthesized for the first time through a combination of living cationic polymerization and ATRP techniques.
Appears in Collections:Vol.5 (1998)

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