Lanthanides benzimidinates: initiators or real catalysts for the epsilon-caprolactone polymerization

Authors
Barbier-Baudry, D Bouazza, A Brachais, CH Dormond, A Visseaux, M
Citation
D. Barbier-baudry et al., Lanthanides benzimidinates: initiators or real catalysts for the epsilon-caprolactone polymerization, MACRO RAPID, 21(5), 2000, pp. 213-217
Citations number
13
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
21
Issue
5
Year of publication
2000
Pages
213 - 217
Database
ISI
SICI code
1022-1336(20000324)21:5<213:LBIORC>2.0.ZU;2-5
Abstract
Lanthanides (samarium and ytterbium) tris and monobenzimidinates are effici ent for the polymerization of epsilon-caprolactone, the systems remaining a ctive after consumption of the monomer. Nevertheless it is not a living pol ymerization because the benzimidinates are recovered. Evidence for support of the proposed catalytic obtained by NMR studies.