In Situ-Generated Ru(III)-Mediated ATRP from the Polymeric Ru(III) Complex in the Absence of Activator Generation Agents

Title
In Situ-Generated Ru(III)-Mediated ATRP from the Polymeric Ru(III) Complex in the Absence of Activator Generation Agents
Author(s)
노석균하단[하단]류원석
Keywords
TRANSFER RADICAL POLYMERIZATION; METHYL-METHACRYLATE; RUTHENIUM CATALYSTS; INITIATING SYSTEM; ELECTRON-TRANSFER; VINYL MONOMERS; LIGANDS; STYRENE; ADDITIVES
Issue Date
201111
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.49, no.21, pp.4594 - 4602
Abstract
Past research has examined the atom transfer radical polymerization (ATRP) with high oxidation state metal complexes and without the need for any additives such as reducing agent or free radical initiator. To extend this research, half-metallocene ruthenium(III) (Ru(III)) catalysts were used for the polymerization of methyl methacrylate (MMA) for the first time. These catalysts were generated in situ simply by mixing phosphorus-containing ligand and pentamethylcyclopentadienyl (Cp*) Ru(III) polymer ((Cp* RuCl(2))(n)). The complexes in their higher oxidation state such as Cp*RuCl(2)(PPh(3)) were air-stable, highly active, and removable catalysts for the ATRPs of MMA with both precision control of molecular weight and narrow polydispersity index. The addition of ppm amount of metal catalyst contributed to the formation of very well-defined homopolymers and copolymers. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 4594-4602, 2011
URI
http://hdl.handle.net/YU.REPOSITORY/24269http://dx.doi.org/10.1002/pola.24903
ISSN
0887-624X
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총장실 > 총장실 > Articles
섬유패션학부 > 섬유패션학부 > Articles
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