Polymerisation of ethylene catalysed by mono‐imine‐2,6‐diacetylpyridine iron/methylaluminoxane (MAO) catalyst system: effect of the ligand on polymer microstructure
2002; Wiley; Volume: 51; Issue: 12 Linguagem: Inglês
10.1002/pi.1134
ISSN1097-0126
AutoresSusete N. Fernandes, R.M. Bellabarba, Alejandro F. G. Ribeiro, Pedro T. Gomes, José R. Ascenso, João F. Mano, Alberto R. Dias, M. Manuel B. Marques,
Tópico(s)Asymmetric Hydrogenation and Catalysis
ResumoAbstract The complex, {1‐{6‐[(2,6‐diisopropylphenyl)‐ethaneimidoyl]‐2‐pyridinyl}‐1‐ethanone}iron(II) dichloride ( 2 ), has been synthesised and characterised. Treatment of complex 2 with methylaluminoxane resulted in a very active catalytic system for the preparation of polyethylene (PE). The system shows activities in the order of magnitude 10 7 g (PE) mol −1 (Fe) h −1 bar −1 . Characterisation by 13 C NMR indicated that branched PE was obtained and that experimental conditions affect polymer microstructure. PE produced contained six to eight branches per 100 carbons. © 2002 Society of Chemical Industry
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