Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization

Liping Zhang (1, 2) , Erlin Yue (2) , Boping Liu (3) , Philippe Serp (1) , Carl Redshaw (4) , Wen-Hua Sun (2) , Jérôme J. Durand (1)

1 LCC - Laboratoire de chimie de coordination
2 Key laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
3 State Key Laboratory of Chemical Engineering (Polymerization Division)
4 Department of Chemistry

A series of 1-aryliminoethylpyridine ligands (L1―L3) was synthesized by condensation of 2-acetylpyridine with 1-aminonaphthalene, 2-aminoanthracene or 1-aminopyrene, respectively. Reaction with nickel dichloride afforded the corresponding nickel (II) chloride complexes (Ni1-Ni3). All compounds were fully characterized and the molecular structures of Ni1 and Ni3 are reported. Upon activation with methylaluminoxane (MAO), all nickel complexes exhibit high activities for ethylene polymerization, producing waxes of low molecular weight and narrow polydispersity. The presence of multi-walled carbon nanotubes (MWCNTs) or few layer graphene (FLG) in the catalytic medium can lead to an increase of productivity associated to a modification of the polymer structure.

Domaines: Chimie de coordination; Catalyse

Liping Zhang, Erlin Yue, Boping Liu, Philippe Serp, Carl Redshaw, et al.. Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization. Catalysis Communications, 2014, 43, pp.227-230. ⟨10.1016/j.catcom.2013.10.014⟩. ⟨hal-00992452⟩