N-Acetoxy-phthalimide (NAPI) as a new H-abstracting agent at high temperature: application to the melt functionalization of polyethylene

Denis Belekian (1) , Philippe Cassagnau (1) , Jean-Jacques Flat (2) , Sébastien Quinebèche (3) , Laurent Autissier , Denis Bertin (4) , Didier Siri , Didier Gigmes (4) , Yohann Guillaneuf (4) , Philippe Chaumont (1) , Emmanuel Beyou (1)

1 IMP - Ingénierie des Matériaux Polymères
2 CERDATO - Centre de recherche, développement, applications et technique de l'ouest
3 LCPO - Laboratoire de Chimie des polymères organiques
4 ICR - Institut de Chimie Radicalaire

A new H-abstracting agent, N-acetoxy-phthalimide (NAPI), was designed that cleaves mainly homolytically into acyloxyl and aminyl radicals at 190 degrees C. Melt PE grafting experiments confirmed the H-abstraction efficiency of NAPI. It was also shown that the grafting of maleic anhydride increased and at the same time undesired crosslinking lowered compared to peroxides.

Mots clés: BOND-DISSOCIATION ENERGIES; MALEIC-ANHYDRIDE; RADICALS; POLYMERIZATION; SELECTIVITY; ACID

Domaines: Polymères; Matériaux

Denis Belekian, Philippe Cassagnau, Jean-Jacques Flat, Sébastien Quinebèche, Laurent Autissier, et al.. N-Acetoxy-phthalimide (NAPI) as a new H-abstracting agent at high temperature: application to the melt functionalization of polyethylene. Polymer Chemistry, 2013, 4, pp.2676-2679. ⟨10.1039/c3py00246b⟩. ⟨hal-00870517⟩