80055-49-8Relevant articles and documents
Initiators based on benzaldoximes: Bimolecular and covalently bound systems
Griesser, Markus,Rosspeintner, Arnulf,Dworak, Claudia,Hoefer, Michael,Grabner, Gottfried,Liska, Robert,Gescheidt, Georg
, p. 8648 - 8657 (2013/01/15)
Typical bimolecular photoinitiators (PIs) for radical polymerization of acrylates show only poor photoreactivity because of the undesired effect of back electron transfer. To overcome this limitation, PIs consisting of a benzaldoxime ester and various sensitizers based on aromatic ketones were introduced. The core of the photoinduced reactivity was established by laser flash photolysis, photo-CIDNP, and EPR experiments at short time scales. According to these results, the primarily formed iminyl radicals are not particularly active. The polymerization is predominantly initiated by C-centered radicals. Photo-DSC experiments show reactivities comparable to that of classical monomolecular type I PIs like Darocur 1173.
EFFETS MICELLAIRES SUR LA BASICITE ET LA REACTIVITE DE NUCLEOPHILES α AROMATIQUES
Meyer, G.,Viout, P.
, p. 2269 - 2272 (2007/10/02)
The oximation of p-nitrophenylacetate by benzaldoximates in aqueous solution is catalyzed by CTAB micelles.The catalysis is more effective when the base strength of the oximate decreases; the reactivity of benzaldoximates is not dependent on their basicity.Our data may be interpreted in terms of orbital-controlled reactions, with interactions between both the n and ? occupied orbitals of the oximates and the LUMO of the acetate.
