Journal ArticleDOI
ICAR ATRP with ppm Cu Catalyst in Water
Dominik Konkolewicz,Andrew J. D. Magenau,Saadyah Averick,Antonina Simakova,Hongkun He,Krzysztof Matyjaszewski +5 more
TLDR
In this article, a thermoresponsive block copolymer of poly(oligo(ethylene oxide) methyl ether methacrylate)-b-poly(oligosin-2-ylmethyl)amine-based catalyst was synthesized in aqueous media to prepare well-defined macromolecules.Abstract:
Initiators for continuous activator regeneration atom transfer radical polymerization (ICAR ATRP) with ppm amount of Cu catalyst was successfully developed in water. For the first time, Cu catalyst concentrations of 100 ppm and lower were used in aqueous media to prepare well-defined macromolecules. Polymers of oligo(ethylene oxide) methyl ether acrylate were synthesized with low dispersity (Mw/Mn = 1.15–1.28) using 20–100 ppm of an active CuBr/tris(pyridin-2-ylmethyl)amine-based catalyst in the presence of excess bromide anions. This technique was used to synthesize a thermoresponsive block copolymer of poly(oligo(ethylene oxide) methyl ether methacrylate)-b-poly(oligo(ethylene oxide) methyl ether acrylate). The methacrylic block had a lower critical solution temperature (LCST = 77 ± 2 °C) below that of the acrylic block. The hydrodynamic diameter of ca. 10 nm at temperatures below the LCST is consistent with free polymer chains in solution, and the diameter of ca. 30 nm above the LCST is consistent with...read more
Citations
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PatentDOI
Electrochemically mediated atom transfer radical polymerization
Krzysztof Matyjaszewski,Nicola Bortolamei,Andrew J. D. Magenau,Armando Gennaro,Abdirisak Ahmed Isse +4 more
TL;DR: In this article, the reduction of an ATRP catalyst, C 11 Br 2 /Me 6 TREN, is shown to be an efficient process to mediate and execute an AT RP.
Journal ArticleDOI
Visible Light and Sunlight Photoinduced ATRP with ppm of Cu Catalyst
Dominik Konkolewicz,Kristin Schröder,Johannes Buback,Stefan Bernhard,Krzysztof Matyjaszewski +4 more
TL;DR: In this paper, photo-induced ATRP was performed with visible light and sunlight in the presence of parts per million (ppm) copper catalysts, and the reaction mixture yielded polymerization in case of 392 and 450 nm light but not for 631 nm light.
Journal ArticleDOI
Photomediated controlled radical polymerization
Xiangcheng Pan,Mehmet Atilla Tasdelen,Joachim Laun,Thomas Junkers,Thomas Junkers,Yusuf Yagci,Yusuf Yagci,Krzysztof Matyjaszewski +7 more
TL;DR: A comprehensive overview of the fundamentals and applications of various photomediated CRP techniques, including atom transfer radical polymerization, reversible addition-fragmentation chain transfer (RAFT), nitroxide mediated polymerization (NMP), and other procedures are discussed in this article.
Journal ArticleDOI
Copper-Mediated Living Radical Polymerization (Atom Transfer Radical Polymerization and Copper(0) Mediated Polymerization): From Fundamentals to Bioapplications
Cyrille Boyer,Nathaniel Corrigan,Kenward Jung,Diep Nguyen,Thuy-Khanh Nguyen,Nik Nik M. Adnan,Susan Oliver,Sivaprakash Shanmugam,Jonathan Yeow +8 more
TL;DR: Radical Polymerization and Copper(0) Mediated polymerization): From Fundamentals to Bioapplications
Journal ArticleDOI
Aqueous ARGET ATRP
TL;DR: In this paper, a well-controlled polymerization of oligo(ethylene oxide) methyl ether methacrylate (OEOMA) was conducted with 300 ppm or lower of a copper catalyst and tris(2-pyridylmethyl)amine (TPMA) ligand in the presence of an excess of halide salts.
References
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Journal ArticleDOI
Living free-radical polymerization by reversible addition - Fragmentation chain transfer: The RAFT process
John Chiefari,Y. K. Chong,Frances Ercole,Julia Krstina,Justine Leigh Jeffery,Tam P. T. Le,Roshan T. A. Mayadunne,Gordon Francis Meijs,Catherine Louise Moad,Graeme Moad,Ezio Rizzardo,San H. Thang +11 more
TL;DR: The authors proposed a reversible additive-fragmentation chain transfer (RAFT) method for living free-radical polymerization, which can be used with a wide range of monomers and reaction conditions and in each case it provides controlled molecular weight polymers with very narrow polydispersities.
Journal ArticleDOI
Controlled/"living" radical polymerization. atom transfer radical polymerization in the presence of transition-metal complexes
Journal ArticleDOI
New polymer synthesis by nitroxide mediated living radical polymerizations.
Journal ArticleDOI
Controlled/living radical polymerization: Features, developments, and perspectives
TL;DR: In this article, a review of recent mechanistic developments in the field of controlled/living radical polymerization (CRP) is presented, with particular emphasis on structure-reactivity correlations and "rules" for catalyst selection in ATRP, for chain transfer agent selection in reversible addition-fragmentation chain transfer (RAFT) polymerization, and for the selection of an appropriate mediating agent in stable free radical polymerisation (SFRP), including organic and transition metal persistent radicals.