Can the first addition of alkyl radicals play a role in the fate of NMP?

Can the first addition of alkyl radicals play a role in the fate of NMP? Full article

Journal

Macromolecular Chemistry and Physics
ISSN: 1022-1352 , E-ISSN: 1521-3935

Output data

Year: 2008, Volume: 209, Number: 13, Pages: 1345-1357 Pages count : 13 DOI: 10.1002/macp.200800099

Tags

kinetics (polym.); living polymerization; nitroxides; nitroxide-mediated polymerization (NMP); styrene

Authors

Bagryanskaya Elena ¹ , Bertin Denis ² , Gigmes Didier ² , Kirilyuk Igor ³ , Marque Sylvain R.A. ² , Reznikov Vladimir ³ , Roshchupkina Galina ³ , Zhurko Irina ³ , Zubenko Dmitry ¹

Affiliations

1	(Данные Web of science) Int Tomog Ctr SB RAS, Novosibirsk, Russia
2	(Данные Web of science) Aix Marseille Univ, UMR CNRS 6517, F-13397 Marseille 20, France
3	(Данные Web of science) Novosibirsk Organ Chem Inst, Novosibirsk, Russia

Values of k(d) for the C-ON bond homolysis were measured for alkoxyamines based on imidazoline and imidazole nitroxides. They were analyzed in terms of polar/stabilization, steric, and entropic effects. k(d) decreased with increasing electron-withdrawing capacities of the groups attached to the nitroxide, but increasing with both the bulkiness of the group attached to the nitroxide and the presence of substituents on the ring. With three alkoxyamines, it was shown that the fate of the NMP of styrene depended on the type of initiating alkyl radical: successful for initiating 1-phenylethyl radicals and unsuccessful for initiating p-nitropheriyloxycarbonyl-2-prop-2-yl radicals.

Bagryanskaya E. , Bertin D. , Gigmes D. , Kirilyuk I. , Marque S.R.A. , Reznikov V. , Roshchupkina G. , Zhurko I. , Zubenko D.
Can the first addition of alkyl radicals play a role in the fate of NMP?
Macromolecular Chemistry and Physics. 2008. V.209. N13. P.1345-1357. DOI: 10.1002/macp.200800099 WOS Scopus РИНЦ

Published print:

Jul 3, 2008

Web of science	WOS:000257676500005
Scopus	2-s2.0-55349083360
Elibrary	13586182
OpenAlex	W2055366181