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Activation of a bis-(phenoxyimine) titanium (IV) catalyst using different aluminoxane co-catalysts

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posted on 06.07.2015, 13:21 by Dario Romano, Sara Ronca, Sanjay Rastogi
The activation of a bis-phenoxyimine catalyst based on titanium (IV) using different aluminoxanes (MAO, PMAO and MMAO12) has been studied. The effect of a co-catalyst modifier (BHT) used in combination with the MAO has been also tested. In particular, the effect of the activation time between the catalyst and the different aluminoxanes has been taken into consideration. On increasing the activation time between catalyst and the different aluminoxanes and TMA-free MAO, differences in the catalyst activities have been observed. UHMWPEs having a reduced number of entanglements have been synthesized activating the FI catalyst with MAO and TMA-free MAO. The obtained reactor powders can be solid-state processed below the melting temperature in order to obtain high modulus/high tenacity tapes used for body armor and vehicle protection applications.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Macromolecular Symposia

Citation

ROMANO, D., RONCA, S. and RASTOGI, S., 2015. Activation of a bis-(phenoxyimine) titanium (IV) catalyst using different aluminoxane co-catalysts. Macromolecular Symposia, 356(1), pp.61-69.

Publisher

© Wiley-VCH Verlag

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This is the peer reviewed version of the following article: ROMANO, D., RONCA, S. and RASTOGI, S., 2015. Activation of a bis-(phenoxyimine) titanium (IV) catalyst using different aluminoxane co-catalysts. Macromolecular Symposia, 356(1), pp.61-69., which has been published in final form at http://dx.doi.org/10.1002/masy.201500047. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

ISSN

1521-3900

Language

en

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