Free radical polymerization of methyl methacrylate initiated by the diphosphine Mo(0) complexes
A Mentes, Murat Emre Hanhan, B Hazer
article (Uluslararası, Hakemli) | Yazar(lar): A Mentes, Murat Emre Hanhan, B Hazer | Yıl: 2006 | Dergi/Kurum: APPLIED ORGANOMETALLIC CHEMISTRY | İndeks: WOS.SCI | DOI: 10.1002/aoc.1125 | Anahtar Kelimeler: bidentatephosphine, carbonyl, molybdenum, poly(methyl methacrylate), transition metal chemistry, organometallic ca
The polymerization of methyl methacrylate MMA catalyzed by IMO(CO)(4)L-2] [L-2 - diphenylphosphinomethane (dppm), diphenylphosphinoethane (dppe) or diphenylphosphinopropane (dppp)] has been studied. The activity of these single-component catalysts depends on the length of the (CHA, bridge of diphosphine ligand. Thus, the dppm derivative displays higher activity than dppe or dppp ligands. These complexes, as free radical initiators, afforded the methyl methacrylate polymerization in chlorinated solvents. The mechanism of the polymerization was discussed and a radical mechanism was proposed. Copyright (c) 2006 John Wiley & Sons, Ltd.