The catalytic CO/styrene and ethylene/methyl acrylate copolymerizations are compared for the first time by applying the same precatalysts. With this aim, Pd-II neutral, [Pd(CH3) Cl(N-N)], and monocationic, [Pd(CH3)(L)(N-N)][PF6] (L= CH3CN, DMSO), complexes with 1-naphthyl- and 2-naphthyl-substitued alpha-diimines with both an acenaphthene and a diazabutadiene skeleton as chelating nitrogen-donor ligands (N-N) have been studied. In the case of the complexes with the 1-naphthyl-substituted ligands, syn and anti isomers are found both in solid state and in solution. All the monocationic complexes generate active catalysts for the CO/styrene copolymerization leading to atactic or isotactic/atactic stereoblock copolymers depending on the ligand bonded to palladium. Instead, in the case of the ethylene/methyl acrylate copolymerization only the complexes with the 1-naphthyl-substituted ligands generate catalysts for this reaction.

Analogies and differences in palladium-catalyzed CO/styrene and ethylene/methyl acrylate copolymerization reactions / V. Rosar; A. Meduri; T. Montini; F. Fini; C. Carfagna; P. Fornasiero; G. Balducci; E. Zangrando; B. Milani. - In: CHEMCATCHEM. - ISSN 1867-3880. - STAMPA. - 6:(2014), pp. 2403-2418. [10.1002/cctc.201402192]

Analogies and differences in palladium-catalyzed CO/styrene and ethylene/methyl acrylate copolymerization reactions

CARFAGNA, CARLA;
2014

Abstract

The catalytic CO/styrene and ethylene/methyl acrylate copolymerizations are compared for the first time by applying the same precatalysts. With this aim, Pd-II neutral, [Pd(CH3) Cl(N-N)], and monocationic, [Pd(CH3)(L)(N-N)][PF6] (L= CH3CN, DMSO), complexes with 1-naphthyl- and 2-naphthyl-substitued alpha-diimines with both an acenaphthene and a diazabutadiene skeleton as chelating nitrogen-donor ligands (N-N) have been studied. In the case of the complexes with the 1-naphthyl-substituted ligands, syn and anti isomers are found both in solid state and in solution. All the monocationic complexes generate active catalysts for the CO/styrene copolymerization leading to atactic or isotactic/atactic stereoblock copolymers depending on the ligand bonded to palladium. Instead, in the case of the ethylene/methyl acrylate copolymerization only the complexes with the 1-naphthyl-substituted ligands generate catalysts for this reaction.
2014
Analogies and differences in palladium-catalyzed CO/styrene and ethylene/methyl acrylate copolymerization reactions / V. Rosar; A. Meduri; T. Montini; F. Fini; C. Carfagna; P. Fornasiero; G. Balducci; E. Zangrando; B. Milani. - In: CHEMCATCHEM. - ISSN 1867-3880. - STAMPA. - 6:(2014), pp. 2403-2418. [10.1002/cctc.201402192]
V. Rosar; A. Meduri; T. Montini; F. Fini; C. Carfagna; P. Fornasiero; G. Balducci; E. Zangrando; B. Milani
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/397450
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