Print Email Facebook Twitter The Influence of Ziegler-Natta and Metallocene Catalysts on Polyolefin Structure, Properties, and Processing Ability Title The Influence of Ziegler-Natta and Metallocene Catalysts on Polyolefin Structure, Properties, and Processing Ability Author Shamiri, A. Chakrabarti, M.H. Jahan, S. Hussain, M.A. Kaminsky, W. Aravind, P.V. Yehye, W.A. Faculty Mechanical, Maritime and Materials Engineering Department Process and Energy Date 2014-07-09 Abstract 50 years ago, Karl Ziegler and Giulio Natta were awarded the Nobel Prize for their discovery of the catalytic polymerization of ethylene and propylene using titanium compounds and aluminum-alkyls as co-catalysts. Polyolefins have grown to become one of the biggest of all produced polymers. New metallocene/methylaluminoxane (MAO) catalysts open the possibility to synthesize polymers with highly defined microstructure, tacticity, and steroregularity, as well as long-chain branched, or blocky copolymers with excellent properties. This improvement in polymerization is possible due to the single active sites available on the metallocene catalysts in contrast to their traditional counterparts. Moreover, these catalysts, half titanocenes/MAO, zirconocenes, and other single site catalysts can control various important parameters, such as co-monomer distribution, molecular weight, molecular weight distribution, molecular architecture, stereo-specificity, degree of linearity, and branching of the polymer. However, in most cases research in this area has reduced academia as olefin polymerization has seen significant advancements in the industries. Therefore, this paper aims to further motivate interest in polyolefin research in academia by highlighting promising and open areas for the future. Subject polyolefinZiegler-Natta catalystmethylaluminoxanemetalloceneco-catalysts To reference this document use: http://resolver.tudelft.nl/uuid:71227440-d795-4d6d-b157-1911df503871 DOI https://doi.org/10.3390/ma7075069 Publisher MDPI ISSN 1996-1944 Source Materials, 7 (7), 2014 Part of collection Institutional Repository Document type journal article Rights (c) 2014 The Author(s)This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). Files PDF 307147.pdf 1.63 MB Close viewer /islandora/object/uuid:71227440-d795-4d6d-b157-1911df503871/datastream/OBJ/view