Journal ArticleDOI
Synthesis and Characterization of Block Copolymers of P(MMA‐b‐n‐BA‐b‐MMA) via Ambient Temperature ATRP of MMA
TLDR
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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Patent
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.
Journal ArticleDOI
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
Facile synthesis of well-defined water-soluble polymers via atom transfer radical polymerization in aqueous media at ambient temperature
TL;DR: In this article, the authors used atom transfer radical polymerization at 20 °C using various initiators to obtain high yield (>95%) within short reaction times and polydispersities were as low as 1.12.
Journal ArticleDOI
Controlled radical polymerization of (meth)acrylates by ATRP with NiBr2(PPh3)2 as catalyst
Georges Moineau,Michaël Minet,Philippe Dubois,Philippe Teyssie,Thierry Senninger,Robert Jérôme +5 more
TL;DR: NiBr2(PPh3)2 has been found to be an efficient catalyst for the ATRP of methyl methacrylate and n-butyl acrylate (n-BuA) initiated by an alkyl halide in the absence of any activator (e.g., Lewis acid) at 85 °C as mentioned in this paper.
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Atom transfer radical polymerization of n‐butyl acrylate from silica nanoparticles
TL;DR: In this article, the synthesis of atom transfer radical polymerization (ATRP) of active initiators from well-defined silica nanoparticles and the use of these ATRP initiators in the grafting of poly(n-butyl acrylate) from the silica particle surface.
Journal ArticleDOI
Facile Synthesis of Acidic Copolymers via atom transfer radical polymerization in aqueous media at ambient temperature
TL;DR: In this paper, the authors describe the efficient, well-controlled (co)polymerization of a second acidic monomer, sodium 4-vinylbenzoate [NaVBA], via ATRP in aqueous media (see Figure 1).
Journal ArticleDOI
Simple and effective one-pot synthesis of (meth)acrylic block copolymers through atom transfer radical polymerization
TL;DR: In this paper, the synthesis of di-and triblock copolymers using atom transfer radical polymerization (ATRP) of n-butyl acrylate and methyl methacrylate (MMA) is reported.