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.
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Subject (DDC): | 540 Chemistry |
Link to License: | In Copyright |
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} }
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