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Propene polymerization with rac-Me<sub>2</sub>Si(2-Me-Benz[e]Ind)<sub>2</sub>ZrX<sub>2</sub> [X = Cl, Me] using different cation-generating reagents

Propene polymerization with rac-Me2Si(2-Me-Benz[e]Ind)2ZrX2 [X = Cl, Me] using different cation-generating reagents

Type of Publication: Journal article
URI (citable link): http://nbn-resolving.de/urn:nbn:de:bsz:352-238766
Author: Beck, Stefan; Brintzinger, Hans-Herbert; Suhm, Jürgen; Mülhaupt, Rolf
Year of publication: 1998
Published in: Macromolecular Rapid Communications ; 19 (1998), 5. - pp. 235-239. - ISSN 1022-1336. - eISSN 1521-3927
DOI (citable link): https://dx.doi.org/10.1002/(SICI)1521-3927(19980501)19:5<235::AID-MARC235>3.0.CO;2-S
Summary:
Propene was polymerized with methylaluminoxane (MAO) and cationic activated rac-dimethylsilylene-2-methylbenz[e]indenylzirconocene [MBI-Cl2] and [MBI-Me2]. For cationic activation of the MBI-Me2 system tris(pentafluorophenyl)borane [I], N,N-dimethylanilinium tetra(pentafluorophenyl)borate [III] were used. The MAO-activated dimethyl complex showed higher activity with respect to the dichloride system using high catalyst concentrations and [Al]/[Zr] ratios. Most effective cationic activator for MBI-Me2 was N,N-dimethylanilinium tetra(pentafluorophenyl)borate [II] in combination with Al(i-Bu3). Using tris(pentafluorophenyl)borane [I] at different polymerization conditions or N,N-dimethylanilinium tetra(pentafluorophenyl)borate [II] in combination with Al(Et)3 no propene polymerization was observed due to the occurrence of reduction of the catalytically active site.
Subject (DDC): 540 Chemistry
Link to License: In Copyright

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BECK, Stefan, Hans-Herbert BRINTZINGER, Jürgen SUHM, Rolf MÜLHAUPT, 1998. Propene polymerization with rac-Me2Si(2-Me-Benz[e]Ind)2ZrX2 [X = Cl, Me] using different cation-generating reagents. In: Macromolecular Rapid Communications. 19(5), pp. 235-239. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/(SICI)1521-3927(19980501)19:5<235::AID-MARC235>3.0.CO;2-S

@article{Beck1998Prope-23876, title={Propene polymerization with rac-Me2Si(2-Me-Benz[e]Ind)2ZrX2 [X = Cl, Me] using different cation-generating reagents}, year={1998}, doi={10.1002/(SICI)1521-3927(19980501)19:5<235::AID-MARC235>3.0.CO;2-S}, number={5}, volume={19}, issn={1022-1336}, journal={Macromolecular Rapid Communications}, pages={235--239}, author={Beck, Stefan and Brintzinger, Hans-Herbert and Suhm, Jürgen and Mülhaupt, Rolf} }

Propene was polymerized with methylaluminoxane (MAO) and cationic activated rac-dimethylsilylene-2-methylbenz[e]indenylzirconocene [MBI-Cl<sub>2</sub>] and [MBI-Me<sub>2</sub>]. For cationic activation of the MBI-Me<sub>2</sub> system tris(pentafluorophenyl)borane [I], N,N-dimethylanilinium tetra(pentafluorophenyl)borate [III] were used. The MAO-activated dimethyl complex showed higher activity with respect to the dichloride system using high catalyst concentrations and [Al]/[Zr] ratios. Most effective cationic activator for MBI-Me<sub>2</sub> was N,N-dimethylanilinium tetra(pentafluorophenyl)borate [II] in combination with Al(i-Bu<sub>3</sub>). Using tris(pentafluorophenyl)borane [I] at different polymerization conditions or N,N-dimethylanilinium tetra(pentafluorophenyl)borate [II] in combination with Al(Et)<sub>3</sub> no propene polymerization was observed due to the occurrence of reduction of the catalytically active site. Beck, Stefan eng Macromolecular Rapid Communications ; 19 (1998), 5. - S. 235-239 Brintzinger, Hans-Herbert 2013-07-27T10:37:40Z Mülhaupt, Rolf Mülhaupt, Rolf Suhm, Jürgen Propene polymerization with rac-Me<sub>2</sub>Si(2-Me-Benz[e]Ind)<sub>2</sub>ZrX<sub>2</sub> [X = Cl, Me] using different cation-generating reagents Beck, Stefan 2013-07-27T10:37:40Z Brintzinger, Hans-Herbert Suhm, Jürgen terms-of-use 1998

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