Leonardo Silva Santos et.al.: Study of Homogeneously Catalyzed Ziegler Natta Polymerization of Ethene by ESI-MS

Author(s): Leonardo Silva Santos, Juergen O. Metzger

Title: Study of Homogeneously Catalyzed Ziegler Natta Polymerization of Ethene by ESI-MS

Date of Upload: 2005-12-30

Article: Angew. Chem. Int. Ed. 2006, 45, 977 –981, University of Oldenburg,

Keywords: homogeneous catalysis, mass spectrometry, microreactors, polymerization, reaction mechanisms

Abstract:
Direct evidence: An ESI mass spectrometer coupled online to a microreactor was used to intercept the catalytically active cationic intermediates of the Ziegler– Natta polymerization of ethene with the homogeneous catalyst system [Cp2ZrCl2]/ MAO (see picture; MAO=methylaluminoxane, Cp=cyclopentadienyl, X=CH3, Cl). For the first time these intermediates were studied directly from the solution and their catalytic activity proved.

URL: http://www.chemie.uni-oldenburg.de/oc/metzger/publikationen/pdf/109_engl.pdf (application/pdf)


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