2,5-Dihydro-1H-imidazole-Based Nitroxides as Prospective Mediators in Living Radical Polymerization
作者:Dmitry Zubenko、Igor Kirilyuk、Galina Roshchupkina、Irina Zhurko、Vladimir Reznikov、Sylvain R. A. Marque、Elena Bagryanskaya
DOI:10.1002/hlca.200690218
日期:2006.10
parameters of reactions modelling the 2,5-dihydro-1H-imidazole 1-oxide mediatedlivingpolymerization of acrylates. The homolysis rate constants of alkoxyamines based on five nitroxides were measured by EPR spectroscopy at different temperatures. The recombination rate constants kc between the corresponding alkyl radicals and the nitroxides were measured by means of laser flash photolysis. The time-resolved
Controlled/living polymerization of methyl methacrylate using new sterically hindered imidazoline nitroxides prepared via intramolecular 1,3-dipolar cycloaddition reaction
作者:Mariya V. Edeleva、Dmitriy A. Parkhomenko、Denis A. Morozov、Sergey A. Dobrynin、Dmitry G. Trofimov、Beket Kanagatov、Igor A. Kirilyuk、Elena G. Bagryanskaya
DOI:10.1002/pola.27071
日期:2014.4.1
A series of imidazolinenitroxides with bulky spirocyclic moieties at the positions 2 or 5 of imidazole ring were synthesized usingintramolecular 1,3‐dipolar cycloaddition in 2H‐imidazole 1‐oxides or 4H‐imidazole 3‐oxides with pent‐4‐enyl groups followed by isoxazolidine ring opening and oxidation. Capability of the nitroxides to control radical polymerization of methylmethacrylate (MMA) and styrene