Journal ArticleDOI
Synthesis and Characterization of Block Copolymers of P(MMA‐b‐n‐BA‐b‐MMA) via Ambient Temperature ATRP of MMA
Reads0
Chats0
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
Citations
More filters
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(
References
More filters
Journal ArticleDOI
Copper(I)-Mediated Living Radical Polymerization in the Presence of Oxyethylene Groups: Online 1H NMR Spectroscopy To Investigate Solvent Effects
TL;DR: The use of oxyethylene methacrylate monomers, initiators, and 1,2-diethoxyethane as a cosolvent in the living radical polymerization mediated by copper(I) pyridylmethanimine complexes has been studied in this paper.
Journal ArticleDOI
Low-Temperature Living “Radical” Polymerization (Atom Transfer Polymerization) of Methyl Methacrylate Mediated by Copper(I) N-Alkyl-2-Pyridylmethanimine Complexes
TL;DR: In this paper, the authors demonstrate that atom transfer polymerization of methyl methacrylate mediated by CuBr/N-alkyl-2-pyridylmethanimine complexes in toluene proceeds effectively at temperatures as low as 15 °C.
Journal ArticleDOI
Controlled Growth of PMMA Brushes on Silicon Surfaces at Room Temperature
TL;DR: In this article, the atom-transfer radical polymerization of methyl methacrylate at room temperature starting from monolayers of initiators, which are covalently anchored to silicon substrates, is described.
Journal ArticleDOI
Facile Synthesis of ABC and CBABC Multiblock Copolymers of Styrene, tert-Butyl Acrylate, and Methyl Methacrylate via Room Temperature ATRP of MMA
TL;DR: A detailed investigation of the atom transfer radical polymerization of methyl methacrylate (MMA) with the ethyl 2-bromoisobutyrate (2-EiBBr)/CuBr/N,N, N',N',N'',N''', N'', n'',n'',pethyldiethylenetriamine (PMDETA) catalyst system in anisole was performed at 30 °C as mentioned in this paper.
Journal ArticleDOI
Effect of Solvent on the Activation Rate Parameters for Polystyrene and Poly(butyl acrylate) Macroinitiators in Atom Transfer Radical Polymerization
TL;DR: In this paper, the activation rate parameters of polystyrene (kSact) and poly(butyl acrylate) (kBAact) macroinitiators in ATRP catalyzed by CuBr/4,4,di-n-heptyl-2,2‘-bipyridine have been determined at 110 °C using a combination of nitroxide exchange reactions with HPLC analysis.