Effect of Storage Conditions on MMA Polymerization via Fe(III)-Mediated ATRP without any Reducing Agent

Title
Effect of Storage Conditions on MMA Polymerization via Fe(III)-Mediated ATRP without any Reducing Agent
Author(s)
노석균한모드유스프Xiangxiong Chen[Xiangxiong Chen]
Keywords
TRANSFER RADICAL POLYMERIZATION; METHYL-METHACRYLATE; AMBIENT-TEMPERATURE; PHOSPHORUS LIGANDS; STYRENE; COMPLEX; COPOLYMERS; CATALYST; DESIGN; POLYMERS
Issue Date
201304
Publisher
POLYMER SOC KOREA
Citation
MACROMOLECULAR RESEARCH, v.21, no.4, pp.442 - 449
Abstract
In a variety of storage conditions, Fe(III)-mediated polymerization of methyl methacrylate (MMA) uses FeX3 (X=Cl & Br), diphenyl-2-pyridylphosphine (DPPP) ligand and ethyl-2-bromoisobutyrate (EBriB) as an initiator at 80 degrees C in toluene without using any external reducing agents. The FeCl3 and FeBr3 containing 980 and 1,890 ppm of water during outside storage for 2 and 4 days, respectively, were successfully used for MMA polymerization through atom transfer radical polymerization (ATRP) without using any reducing agent. Moisture content of the polymerization system increases as the period of outside storage increases. It turned out that most of the polymerizations were under control even after keeping metal salts and their complexes outdoors for 4 days exhibiting a poly-dispersity less than 1.5. The kinetic plot between ln [M](0)/[M] and time demonstrated linearity during the polymerization. A chain extension study clearly reveals that the moisture contaminated FeX3 due to outdoor storage, is able to catalyze the ATRP of MMA in the absence of any additive by a living radical mechanism.
URI
http://hdl.handle.net/YU.REPOSITORY/26061http://dx.doi.org/10.1007/s13233-013-1040-7
ISSN
1598-5032
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총장실 > 총장실 > Articles
공과대학 > 화학공학부 > Articles
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