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
Design of initiators for living radical polymerization of methyl methacrylate mediated by ruthenium(ii) complex
TL;DR: A series of initiators have been developed for living radical polymerization of methyl methacrylate (MMA) mediated by ruthenium(II) complexes [e.g., RuCl2(PPh3)3; PhC6H5] as discussed by the authors.
Journal ArticleDOI
Mechanistic and synthetic aspects of atom transfer radical polymerization
TL;DR: In this paper, the atom transfer radical polymerization (ATRP) is used to synthesize linear homopolymers, statistical copolymers, block copolymer, and gradient copolymmers.
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Step-Growth Polymers as Macroinitators for ``Living'' Radical Polymerization: Synthesis of ABA Block Copolymers
Journal ArticleDOI
Phenolic ester-based initiators for transition metal mediated living polymerization
David M. Haddleton,Carl Waterson +1 more
TL;DR: A range of phenolic esters derived form the esterification of substituted phenols with 2-bromoisobutyryl bromide and 2-chloro-obutyrryl chloride have been demonstrated to be effective atom transfer polymerization initiators in conjunction with N-(n-octyl)-2-pyridylmethanimine and copper(I) chloride and bromides as mentioned in this paper.
Journal ArticleDOI
Synthesis and characterization of graft copolymers of poly(vinyl chloride) with styrene and (meth)acrylates by atom transfer radical polymerization
TL;DR: Graft copolymers of poly(vinyl chloride) with styrene and (meth)acrylates were prepared by atom transfer radical polymerization as discussed by the authors, and the formation of the graft copolymer was confirmed with size exclusion chromatography (SEC), 1H NMR and IR spectroscopy.