Trityl-based alkoxyamines as NMP controllers and spin-labels

Trityl-based alkoxyamines as NMP controllers and spin-labels Full article

Journal

Polymer Chemistry
ISSN: 1759-9954 , E-ISSN: 1759-9962

Output data

Year: 2016, Volume: 7, Number: 42, Pages: 6490-6499 Pages count : 10 DOI: 10.1039/c6py01303a

Authors

Audran Gerard ¹ , Bagryanskaya Elena G. ^2,3 , Bremond Paul ¹ , Edeleva Mariya V. ² , Marque Sylvain R.A. ^1,2 , Parkhomenko Dmitriy A. ² , Rogozhnikova Olga Yu. ^2,3 , Tormyshev Victor M. ^2,3 , Tretyakov Evgeny V. ² , Trukhin Dmitry V. ^2,3 , Zhivetyeva Svetlana I. ²

Affiliations

1	(Данные Web of science) Aix Marseille Univ, CNRS, ICR, UMR 7273, Case 551,Ave Escadrille Normandie Niemen, F-13397 Marseille 20, France
2	(Данные Web of science) RAS, SB, NN Vorozhtsov Novosibirsk Inst Organ Chem, 9 Lavrentjev Ave, Novosibirsk 630090, Russia
3	(Данные Web of science) Novosibirsk State Univ, Novosibirsk 630090, Russia

Recently, new applications of trityl-nitroxide biradicals were proposed. In the present study, attachment of a trityl radical to alkoxyamines was performed for the first time. The rate constants k(d) of C-ON bond homolysis in these alkoxyamines were measured and found to be similar to those for alkoxyamines without a trityl moiety. The electron paramagnetic resonance (EPR) spectra of the products of alkoxyamine homolysis (trityl-TEMPO and trityl-SG1 biradicals) were recorded, and the corresponding exchange interactions were estimated. The decomposition of trityl-alkoxyamines showed more than an 80% yield of biradicals, meaning that the C-ON bond homolysis is the main reaction. The suitability of these labelled initiators/controllers for polymerisation was exemplified by means of a successful nitroxide-mediated polymerisation (NMP) of styrene. Thus, this is the first report of a spin-labelled alkoxyamine suitable for NMP.

Audran G. , Bagryanskaya E.G. , Bremond P. , Edeleva M.V. , Marque S.R.A. , Parkhomenko D.A. , Rogozhnikova O.Y. , Tormyshev V.M. , Tretyakov E.V. , Trukhin D.V. , Zhivetyeva S.I.
Trityl-based alkoxyamines as NMP controllers and spin-labels

Polymer Chemistry. 2016. V.7. N42. P.6490-6499. DOI: 10.1039/c6py01303a WOS Scopus РИНЦ

Full text from publisher

Web of science	WOS:000387071800008
Scopus	2-s2.0-84992708439
Elibrary	27583413
OpenAlex	W2530646635