Search Results - "Pakkanen, Anneli"

Influence of the ligand structure of hafnocene polymerization catalysts: A theoretical study on chain termination reactions in ethene polymerization by Karttunen, Virve A., Linnolahti, Mikko, Pakkanen, Tapani A., Severn, John R., Kokko, Esa, Maaranen, Janne, Pitkänen, Päivi, Pakkanen, Anneli

“…The influence of ligand structure of hafnocene catalysts on chain termination has been studied by quantum chemical methods. Three mechanisms were considered:…”
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Describing and quantifying the chemical composition distribution in unimodal and multimodal ZN-polyethylene using CRYSTAF by Albrecht, Andreas, Jayaratne, Kumudini, Jeremic, Ljiljana, Sumerin, Victor, Pakkanen, Anneli

“…ABSTRACT A new approach in describing and quantifying the chemical composition distribution (CCD) in Ziegler–Natta‐polyethylene copolymers was developed by…”
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Alkylation of titanium tetrachloride on magnesium dichloride in the presence of Lewis bases by Linnolahti, Mikko, Pakkanen, Tapani A., Bazhenov, Andrey S., Denifl, Peter, Leinonen, Timo, Pakkanen, Anneli

“…[Display omitted] •All relevant catalyst components are included in the periodic calculations.•TiCl4 prefers octahedral coordination on both (104) and (110)…”
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Modeling Coadsorption of Titanium Tetrachloride and Bidentate Electron Donors on Magnesium Dichloride Support Surfaces by Bazhenov, Andrey S, Denifl, Peter, Leinonen, Timo, Pakkanen, Anneli, Linnolahti, Mikko, Pakkanen, Tapani A

“…Coadsorption of titanium tetrachloride and two representative bidentate electron donors on magnesium dichloride surfaces is systematically studied by means of…”
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Polyethylenimines: Multidentate Electron Donors for Ziegler–Natta Catalysts by Nissinen, Ville H, Linnolahti, Mikko, Bazhenov, Andrey S, Pakkanen, Tuula T, Pakkanen, Tapani A, Denifl, Peter, Leinonen, Timo, Jayaratne, Kumudini, Pakkanen, Anneli

“…Polyethylenimines, polymers bearing amino functionalities, are studied for the first time as internal electron donors for Ziegler–Natta catalysts. An advantage…”
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Comparative Theoretical Study on Homopolymerization of α-Olefins by Bis(cyclopentadienyl) Zirconocene and Hafnocene: Elemental Propagation and Termination Reactions between Monomers and Metals by Laine, Anniina, Linnolahti, Mikko, Pakkanen, Tapani A, Severn, John R, Kokko, Esa, Pakkanen, Anneli

“…A comparative quantum chemical study has been performed to shed light on the fundamental differences between hafnocenes and zirconocenes concerning reactions…”
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Elemental Reactions in Copolymerization of α-Olefins by Bis(cyclopentadienyl) Zirconocene and Hafnocene: Effects of the Metal as a Function of the Monomer and the Chain End by Laine, Anniina, Linnolahti, Mikko, Pakkanen, Tapani A, Severn, John R, Kokko, Esa, Pakkanen, Anneli

“…The effect of the metal on elementary chain propagation and termination reactions in hafnocene- and zirconocene-catalyzed olefin copolymerization processes has…”
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