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Copolymerization of ethylene with methyl methacrylate by ziegler-natta-type catalysts based on nickel salicylaldiminate/methylalumoxane systems

2002; Wiley; Volume: 203; Issue: 10-11 Linguagem: Inglês

10.1002/1521-3935(200207)203

1521-3935

Carlo Carlini, Marco Martinelli, Anna Maria Raspolli Galletti, Glauco Sbrana,

Carbon dioxide utilization in catalysis

Macromolecular Chemistry and PhysicsVolume 203, Issue 10-11 p. 1606-1613 Full Paper Copolymerization of ethylene with methyl methacrylate by ziegler-natta-type catalysts based on nickel salicylaldiminate/methylalumoxane systems† Carlo Carlini, Corresponding Author Carlo Carlini carlini@dcci.unipi.it Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalyDipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, Italy. Fax: +39-050-918260Search for more papers by this authorMarco Martinelli, Marco Martinelli Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalySearch for more papers by this authorAnna Maria Raspolli Galletti, Anna Maria Raspolli Galletti Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalySearch for more papers by this authorGlauco Sbrana, Glauco Sbrana Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalySearch for more papers by this author Carlo Carlini, Corresponding Author Carlo Carlini carlini@dcci.unipi.it Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalyDipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, Italy. Fax: +39-050-918260Search for more papers by this authorMarco Martinelli, Marco Martinelli Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalySearch for more papers by this authorAnna Maria Raspolli Galletti, Anna Maria Raspolli Galletti Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalySearch for more papers by this authorGlauco Sbrana, Glauco Sbrana Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via Risorgimento 35, 56126 Pisa, ItalySearch for more papers by this author First published: 29 July 2002 https://doi.org/10.1002/1521-3935(200207)203:10/11 3.0.CO;2-PCitations: 37 † Dedicated to Prof. Emo Chiellini and Francesco Ciardelli on the occasion of their 65th birthday Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Bis(salicylaldiminate)nickel(II) complexes, such as bis[N(2,6-diisopropylphenyl) salicylaldiminate]nickel(II) and bis(N-isopropylsalicylaldiminate)nickel(II), were activated by methylalumoxane (MAO) to give catalytic systems able to copolymerize ethylene (E) with methyl methacrylate (MMA), thus producing low molecular weight copolymers with a rather high content of MMA co-units (50–80 mol-%). On the contrary, when catalytic systems, obtained by oxidative addition of salicylaldimine ligands such as 5-nitro-N-(2,6-diisopropylphenyl)salicylaldimine (NPS) and 3,5-dinitro-N-(2,6-diisopropylphenyl)salicylaldimine (DNPS) to bis(cyclooctadienyl)nickel(0) [Ni(cod)2], were activated with MAO, high viscometric average molecular weight (Mv 10–30 × 104 Da) E/MMA copolymers with a low content of MMA co-units (3–6 mol-%) were formed, thus allowing to obtain directly by synthesis functionalized highly linear poly(ethylene)s (Tm up to 130 °C) to be potentially applied as new materials with improved surface properties. Citing Literature Volume203, Issue10-11July 2002Pages 1606-1613 RelatedInformation