Journal ArticleDOI
Controlled Radical Polymerization of Methacrylic Monomers in the Presence of a Bis(ortho-chelated) Arylnickel(II) Complex and Different Activated Alkyl Halides
Reads0
Chats0
TLDR
In this article, a novel class of homogeneous nickel(II) catalysts, denoted as Ni(NCN)Br, is reported to mediate in the presence of activated alkyl halides, e.g., CCl4 or α-halocarbonyl compounds, and remarkably enough, poly(methyl methacrylate) (PMMA) with molecular weight up to at least 105 g/mol was synthesized in a controlled fashion.Abstract:
A novel class of homogeneous nickel(II) catalysts, i.e [Ni{o,o‘(CH2NMe2)2C6H3}Br], denoted as Ni(NCN‘)Br, is reported to mediate in the presence of activated alkyl halides, e.g., CCl4 or α-halocarbonyl compounds, a well-controlled radical polymerization of methacrylic monomers [methyl and n-butyl methacrylate), (MMA, n-BuMA)] at rather low temperatures (<100 °C). The number-average molecular weight of the polymer gradually increased with the monomer conversion and was inversely proportional to the initiator concentration of alkyl halides. The molecular weight distribution (MWD) remained very narrow during the whole course of the polymerization (MWD < 1.3). All the experimental data including a successful block copolymerization (n-BuMA-b-MMA) experiment were in agreement with a living polymerization process, and remarkably enough, poly(methyl methacrylate) (PMMA) with molecular weight up to at least 105 g/mol was synthesized in a controlled fashion. Increased thermal stability of the PMMA is a further indi...read more
Citations
More filters
Journal ArticleDOI
Bisphosphine Monoxide-Ligated Ruthenium Catalysts: Active, Versatile, Removable, and Cocatalyst-Free in Living Radical Polymerization
TL;DR: In this article, bisphosphine monoxides [BPMO] were found to be effective for pentamethylcyclopentadiene ruthenium chloride catalysts in living radical polymerization.
Journal ArticleDOI
Recent achievements in anionic polymerization of (meth)acrylates
TL;DR: The constant progress of the anionic polymerization of (meth)acrylates is discussed from both the fundamental and practical points of view in this article, where a special attention is paid to the improved macromolecular engineering of the mithacrylate-based (co)polymers.
Journal ArticleDOI
Polymers Based on Benzyl Methacrylate: Synthesis via Atom Transfer Radical Polymerization, Characterization, and Thermal Stabilities
TL;DR: In this article, the atom transfer radical polymerization method (ATRP) was used for copolymerization and homopolymerization of benzyl methacrylate (BMA) and poly(BMA- co-EMA).
Journal ArticleDOI
Atom‐Transfer Radical Polymerization: A Strategy for the Synthesis of Halogen‐Free Amino‐Functionalized Poly(methyl methacrylate) in a One‐Pot Reaction
TL;DR: In this paper, an initiator containing an alkyl bromide unit and a protected amine functional group is used with CuBr/N,N, N', N, N-pentamethyldiethylenetriamine (PMDETA), in a 1:2 molar ratio with respect in initiator concentration, in order to obtain amino-group terminated as well as halogen-free poly(methyl methacrylate) (PMMA) in a one-spot-atom-transfer radical polymerization (ATRP).
Journal ArticleDOI
Living/controlled radical copolymerization of N‐substituted maleimides with styrene in 1‐butyl‐3‐methylimidazolium hexafluorophosphate and anisole
Youliang Zhao,Chuanfu Chen,Fu Xi +2 more
TL;DR: The atom transfer radical copolymerization of N-substituted maleimides such as N-phenylmaleimide (PhMI), N-cyclohexyl maleimide(ChMI), and NBMI with styrene initiated with dendritic polyarylether 2-bromoisobyrates in an ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]), at room temperature and anisole at 110 °C was investigated RE
References
More filters
Journal ArticleDOI
Controlled/"living" radical polymerization. atom transfer radical polymerization in the presence of transition-metal complexes
Journal ArticleDOI
Polymerization of Methyl Methacrylate with the Carbon Tetrachloride/Dichlorotris- (triphenylphosphine)ruthenium(II)/Methylaluminum Bis(2,6-di-tert-butylphenoxide) Initiating System: Possibility of Living Radical Polymerization
Journal ArticleDOI
Narrow molecular weight resins by a free-radical polymerization process
TL;DR: In this paper, free radical polymerization was used to obtain polystyrene and poly(styrene-co-butadiene) with narrow polydispersity (1.19-1.36) in the presence of 2,2,6, 6,6-tetramethyl-1-piperidinyloxy using benzoyl peroxide as initiator
Journal ArticleDOI
Controlled Living Radical Polymerization - Halogen Atom-Transfer Radical Polymerization Promoted by a Cu(I)Cu(II) Redox Process
TL;DR: An extension of ATRA to atom transfer radical addition, ATRP, provided a new and efficient way to conduct controlled/living radical polymerization as mentioned in this paper, using a simple alkyl halide, R-X (X = Cl and Br), as an initiator and a transition metal species complexed by suitable ligand(s), M t n /L x, e.g., CuX/2,2'-bipyridine, as a catalyst.
Related Papers (5)
Controlled/"living" radical polymerization. atom transfer radical polymerization in the presence of transition-metal complexes
Living radical polymerization of styrene initiated by arenesulfonyl chlorides and CuI(bpy)nCl
Virgil Percec,Bogdan Barboiu +1 more