title: Living Cationic Polymerization of Vinyl Ethers through a Photoinduced Radical Oxidation/Addition/Deactivation Sequence.
abstract: A new photoinitiating system for living cationic polymerization of vinyl ethers is reported. In the current approach, visible-light irradiation of dimanganese decacarbonyl (Mn2(CO)10) in the presence of an alkyl bromide results in the formation of carbon-centered radicals. The photochemically generated radicals were then oxidized by diphenyliodonium ions to the corresponding cations. These cations can add vinyl ether monomers, which are then rapidly deactivated by the bromide anions to give α-halide functional end groups. Poly(vinyl ether) chains are then grown through successive photoinduced radical oxidation/addition/deactivation (PROAD) in a controlled manner. The living nature of the system is evaluated through kinetics studies and block copolymer formation.
authors.affiliation: Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Ciftci
authors.affiliation: Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Yoshikawa
authors.affiliation: Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.|King Abdulaziz University, Faculty of Science, Chemistry Department, Jeddah, Saudi Arabia.
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Yagci
keywords: living polymerization; manganese; photopolymerization; polymers; vinyl ethers