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2,5-dihydro-1H-imidazole-based nitroxides as prospective mediators in living radical polymerization Full article

Journal Helvetica Chimica Acta
ISSN: 0018-019X , E-ISSN: 1522-2675
Output data Year: 2006, Volume: 89, Number: 10, Pages: 2341-2353 Pages count : 13 DOI: 10.1002/hlca.200690218
Authors Zubenko Dmitry 1 , Kirilyuk Igor 2 , Roshchupkina Galina 2 , Zhurko Irina 2 , Reznikov Vladimir 2 , Marque Sylvain R.A. 3 , Bagryanskaya Elena 1
Affiliations
1 (Данные Web of science) RAS, SB, Int Tomog Ctr, Novosibirsk 630090, Russia
2 (Данные Web of science) RAS, SB, Inst Organ Chem, Novosibirsk 630090, Russia
3 (Данные Web of science) Univ Aix Marseille 1, UMR 6517, F-13397 Marseille 20, France

Abstract: A number of spectroscopic methods were applied to obtain kinetic parameters of reactions modelling the 2,5-dihydro-1H-imidazole 1-oxide mediated living polymerization of acrylates. The homolysis rate constants of alkoxyamines based on five nitroxides were measured by EPR spectroscopy at different temperatures. The recombination rate constants k(c) between the corresponding alkyl radicals and the nitroxides were measured by means of laser flash photolysis. The time-resolved chemically induced dynamic nuclear polarization (TR-CIDNP) experiments revealed the negligible contribution of disproportionation in the recombination reaction. In addition, the thermodecomposition of alkoxyamines in the NMR probe showed the absence of intramolecular elimination of hydroxylamines from the corresponding alkoxyamines. Analysis of the kinetic parameters showed that the 2,5-dihydro-1H-imidazole 1-oxide type radicals are promising mediators for the living polymerization of acrylates and methacrylates.
Cite: Zubenko D. , Kirilyuk I. , Roshchupkina G. , Zhurko I. , Reznikov V. , Marque S.R.A. , Bagryanskaya E.
2,5-dihydro-1H-imidazole-based nitroxides as prospective mediators in living radical polymerization
Helvetica Chimica Acta. 2006. V.89. N10. P.2341-2353. DOI: 10.1002/hlca.200690218 WOS Scopus РИНЦ OpenAlex
Dates:
Published print: Oct 1, 2006
Identifiers:
Web of science: WOS:000241928300022
Scopus: 2-s2.0-33751005861
Elibrary: 13505290
OpenAlex: W2011613430
Citing:
DB Citing
Web of science 23
Scopus 24
Elibrary 25
OpenAlex 23
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