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• W1965085364 abstract "Ruthenium(II) tris(bipyridine) complexes derivatized with six α-bromoester functional groups were used as multifunctional initiators for the bulk and solution (toluene) polymerizations of methyl methacrylate (MMA) and methyl acrylate (MA) using NiBr2(PPh3)2 and NiBr2(PBu3)2 as atom transfer radical polymerization (ATRP) catalysts. Both tertiary (1) and secondary (2) halide metalloinitiators were prepared for investigation. The resulting orange-colored polymers were characterized by gel permeation chromatography (GPC) in chloroform. The molecular weight distributions of the poly(methyl methacrylates) (PMMAs) were narrow (toluene, Mw/Mn = 1.1−1.3; bulk, Mw/Mn < ∼1.3 at <50% conversion). The presence of [Ru(bpy)3]2+ in the eluting polymers was verified by in-line, diode-array UV/vis spectroscopic analysis. For polymerizations of MMA in toluene at 80 °C using the tertiary initiator and NiBr2(PPh3)2 as the catalyst, Mn vs percent conversion and pseudo first-order kinetics plots were linear. Thus, these conditions were used to prepare a series of Ru-centered PMMA stars with molecular weights ranging from 2800 to ∼350 000. The linear polymer arms were cleaved from the Ru cores using NaOMe. Polydispersities of cleaved linear PMMA arms were low (∼1.10−1.24) and Mnstar/Mnarm ≈ 6, further confirming the efficiency of initiation and controlled nature of these reactions. As the percent toluene relative to monomer was reduced, control diminished. Likewise, all other polymerizations carried out with varied combinations of initiator (secondary or tertiary), monomer (MA or MMA), Ni catalyst (Ph or Bu), and reaction conditions (bulk vs solution) were not “living.” Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) of materials revealed no evidence of chain transfer and termination processes." @default.
• W1965085364 created "2016-06-24" @default.
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• W1965085364 date "2000-09-16" @default.
• W1965085364 modified "2023-10-14" @default.
• W1965085364 title "Poly(methyl methacrylates) with Ruthenium Tris(bipyridine) Cores via NiBr₂(PR₃)₂-Catalyzed Atom Transfer Radical Polymerization (ATRP)" @default.
• W1965085364 cites W1964087582 @default.
• W1965085364 cites W1964385392 @default.
• W1965085364 cites W1966148719 @default.
• W1965085364 cites W1970723452 @default.
• W1965085364 cites W1977156116 @default.
• W1965085364 cites W1979186714 @default.
• W1965085364 cites W1983335169 @default.
• W1965085364 cites W1997474277 @default.
• W1965085364 cites W2000466466 @default.
• W1965085364 cites W2000942311 @default.
• W1965085364 cites W2001277223 @default.
• W1965085364 cites W2001554391 @default.
• W1965085364 cites W2002691071 @default.
• W1965085364 cites W2003914329 @default.
• W1965085364 cites W2004190156 @default.
• W1965085364 cites W2004727795 @default.
• W1965085364 cites W2005846082 @default.
• W1965085364 cites W2009566668 @default.
• W1965085364 cites W2009613472 @default.
• W1965085364 cites W2014565608 @default.
• W1965085364 cites W2014587946 @default.
• W1965085364 cites W2014882755 @default.
• W1965085364 cites W2015317143 @default.
• W1965085364 cites W2015604634 @default.
• W1965085364 cites W2015607958 @default.
• W1965085364 cites W2017313815 @default.
• W1965085364 cites W2018222467 @default.
• W1965085364 cites W2019788584 @default.
• W1965085364 cites W2025337427 @default.
• W1965085364 cites W2029873967 @default.
• W1965085364 cites W2029890180 @default.
• W1965085364 cites W2030950757 @default.
• W1965085364 cites W2036185563 @default.
• W1965085364 cites W2038274676 @default.
• W1965085364 cites W2039895558 @default.
• W1965085364 cites W2040112062 @default.
• W1965085364 cites W2043063627 @default.
• W1965085364 cites W2049916095 @default.
• W1965085364 cites W2053866644 @default.
• W1965085364 cites W2056674490 @default.
• W1965085364 cites W2062664418 @default.
• W1965085364 cites W2063395863 @default.
• W1965085364 cites W2064274341 @default.
• W1965085364 cites W2073981580 @default.
• W1965085364 cites W2074554162 @default.
• W1965085364 cites W2076525383 @default.
• W1965085364 cites W2077387316 @default.
• W1965085364 cites W2078694248 @default.
• W1965085364 cites W2078811060 @default.
• W1965085364 cites W2079507386 @default.
• W1965085364 cites W2080501396 @default.
• W1965085364 cites W2080837087 @default.
• W1965085364 cites W2082039918 @default.
• W1965085364 cites W2082295022 @default.
• W1965085364 cites W2083678749 @default.
• W1965085364 cites W2093077889 @default.
• W1965085364 cites W2144729557 @default.
• W1965085364 cites W2161690712 @default.
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• W1965085364 cites W2952513104 @default.
• W1965085364 cites W3023069047 @default.
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• W1965085364 doi "https://doi.org/10.1021/ma0008084" @default.
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