Journal ArticleDOI
Synthesis and Characterization of Block Copolymers of P(MMA‐b‐n‐BA‐b‐MMA) via Ambient Temperature ATRP of MMA
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A binol ester initiator was used as a bifunctional ATRP initiator in combination with PMDETA/copper bromide catalyst system in DMF to synthesize n-butyl acrylate macroinitiator at 50°C.Abstract:
A binol ester initiator was used as a bifunctional ATRP initiator in combination with PMDETA/copper bromide catalyst system in DMF to synthesize n‐butyl acrylate macroinitiator at 50°C. The resulting macroinitiator was used for a detailed investigation of the ATRP of methyl methacrylate (MMA) with CuCl/N,N,N′,N′,N″‐pentamethyldiethy‐lenetriamine (PMDETA) catalyst system in anisole at 30°C. Thus, the MMA polymerization is shown to proceed with first order kinetics, with predicted molecular weight and narrow polydispersity indices. Gel permeation chromatography (GPC) and NMR were used for the characterization of the polymers synthesized.read more
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Catalyst components for the polymerization of olefins
Morini Giampiero,Isabella Maria Vittoria Camurati,Tiziano Dall'occo,Dario Liguori,Gianni Vitale +4 more
TL;DR: In this article, the ORI/Ti molar ratio in the range 0.1-1.5 was used for the polymerization of MWD crystalline ethylene polymers.
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Acrylic AB and ABA block copolymers based on poly(2-ethylhexyl acrylate) (PEHA) and poly(methyl methacrylate) (PMMA) via ATRP.
TL;DR: Small-angle X-ray scattering (SAXS) analysis of AB and ABA block copolymers showed scattering behavior inside the measuring limits indicating nanophase separation, however, SAXS pattern of AB diblockCopolymers indicated general phase separation only, whereas for ABA triblock copolymer an ordered or mixed morphology could be deduced, which is assumed to be the reason for the better mechanical properties achieved with ABABlocks.
Journal ArticleDOI
Grafting of methacrylates and styrene on to polystyrene backbone via a “grafting from” ATRP process at ambient temperature
TL;DR: In this paper, the graft copolymerization followed by block polymerization enabled the synthesis of highly branched polymer brush, in which the grafting density can be adjusted by appropriate choice of bromide concentration in polystyrene.
Journal ArticleDOI
Ambient temperature Atom Transfer Radical copolymerization of tetrahydrofurfuryl methacrylate and methyl methacrylate: Reactivity ratio determination
TL;DR: In this paper, a tetrahydrofurfuryl methacrylate (THFMA) was polymerized by ambient temperature Atom Transfer Radical Polymerization (AT ATRP) using CuX/PMDETA/EBiB system.
Journal ArticleDOI
Copper‐based reverse ATRP process for the controlled radical polymerization of methyl methacrylate
TL;DR: In this article, a series of copper-based reverse atom transfer radical polymerizations (ATRP) were carried out for methyl methacrylate (MMA) at same conditions (in xylene, at 80°C) using N,N,N′, N′-teramethylethylendiamine (TMEDA), N, N, n′,N-N′-N-pentamethyldiethylentriamine (PMDETA), 2-2′-bipyridine, and 4,4′-Di(
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Journal ArticleDOI
Functional polymers by atom transfer radical polymerization
TL;DR: Atom transfer radical polymerization (ATRP) is one of the most successful methods to polymerize styrenes, (meth)acrylates and a variety of other monomers in a controlled fashion, yielding polymers with molecular weights predetermined by the ratio of the concentrations of consumed monomer to introduced initiator and with low polydispersities as discussed by the authors.
Journal ArticleDOI
Controlled Synthesis of Polymer Brushes by “Living” Free Radical Polymerization Techniques
Marc Husseman,Eva Malmström,Molly McNamara,Mathew Mate,David Mecerreyes,Didier Benoit,James L. Hedrick,Paul Mansky,Elbert E. Huang,Thomas P. Russell,Craig J. Hawker +10 more
TL;DR: In this article, a wide variety of unique polymer brush structures can be accomplished by "living" free radical polymerization of vinyl monomers from surface-tethered alkoxyamines or from tethered α-halo esters in the presence of (PPh3)2NiBr2.
Journal ArticleDOI
Atom transfer radical polymerization and the synthesis of polymeric materials
TL;DR: A review of the development of controlled/living radical polymerization methods can be found in this article, where the authors give a brief overview of recent developments in controlled radical polymerizations and describe in more depth the progress that has been made in the development.
Journal ArticleDOI
The Synthesis of Densely Grafted Copolymers by Atom Transfer Radical Polymerization
TL;DR: In this article, a macroinitiator with a grafting site at each repeat unit was used to obtain a broad molecular weight distribution of brush-like macromolecules using atom transfer radical polymerization (ATRP).
Journal ArticleDOI
Controlled radical polymerization
TL;DR: In this article, the fundamental principles of controlled/living radical polymerization are given together with a discussion of selected initiating/catalytic systems which provide structural, compositional, and functionality control during radical polymerisation.