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Reactivity and Mechanistic Studies of Stereocontrol for Ziegler—Natta Polymerization Utilizing Doubly-Silylene Bridged Group 3 and Group 4 Metalocenes

Zubris, D. L. and Veghini, D. and Herzog, T. A. and Bercaw, J. E. (1999) Reactivity and Mechanistic Studies of Stereocontrol for Ziegler—Natta Polymerization Utilizing Doubly-Silylene Bridged Group 3 and Group 4 Metalocenes. In: Olefin Polymerization. ACS Symposium Series. No.749. American Chemical Society , Washington, DC, pp. 2-14. ISBN 9780841236141. https://resolver.caltech.edu/CaltechAUTHORS:20161130-153120635

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Abstract

A family of zirconocene, yttrocene, and scandocene complexes have been prepared utilizing an easily modified doubly bridged ligand array, (1,2-SiMe_2)_2{η^5-C_5H_2-4-R}{η^5-C_5H-3,5-CHMe_2)_2}, developed in our laboratories. Variations in ligand array substitution and metal center provide complexes that exhibit a range of stereoselectivities and activities in α-olefin polymerizations. A series of C_(s-) and C_(1-) symmetric metallocenes have been utilized for the preparation of polypropylene and polypentene under various polymerization conditions. Analysis of the resulting polymer microstructures has provided valuable information about the factors that dictate syndiospecificity, as well as common error forming mechanisms for these systems.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/bk-2000-0749.ch001DOIArticle
http://pubs.acs.org/doi/abs/10.1021/bk-2000-0749.ch001PublisherArticle
Additional Information:© 2000 American Chemical Society. Publication Date (Print): December 29, 1999. The work had been supported by the Department of Energy (Grant No. DE-FG03-88ER13431) and by Exxon Chemicals America.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-88ER13431
Exxon Chemicals AmericaUNSPECIFIED
Series Name:ACS Symposium Series
Issue or Number:749
DOI:10.1021/bk-2000-0749.ch001
Record Number:CaltechAUTHORS:20161130-153120635
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161130-153120635
Official Citation:Reactivity and Mechanistic Studies of Stereocontrol for Ziegler—Natta Polymerization Utilizing Doubly-Silylene Bridged Group 3 and Group 4 Metalocenes D. L. Zubris, D. Veghini, T. A. Herzog, and J. E. Bercaw Olefin Polymerization. December 29, 1999 , 2-14 DOI:10.1021/bk-2000-0749.ch001
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72474
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:30 Nov 2016 23:40
Last Modified:11 Nov 2021 05:02

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