[HTML][HTML] Manipulating pre-equilibria in olefin polymerization catalysis: backbone-stiffening converts a living into a highly active salan-type catalyst
DV Uborsky, MI Sharikov, GP Goryunov… - Inorganic Chemistry …, 2023 - pubs.rsc.org
Stiffening of the catalyst backbone of salan-type catalyst 1via ring closure yields
indanosalan 3 and increases activity and molar mass capability by two orders of magnitude …
indanosalan 3 and increases activity and molar mass capability by two orders of magnitude …
The Interplay of Backbone Stiffening and Active Pocket Design in Bis (phenolate-ether) Zr/Hf Propene Polymerization Catalysts
A Vittoria, PS Kulyabin, G Antinucci, AN Iashin… - ACS …, 2023 - ACS Publications
For [OOOO]-type catalysts, the introduction of two methyl substituents behind the active site,
at the backbone C3 linker, can substantially impact performance in propene polymerization …
at the backbone C3 linker, can substantially impact performance in propene polymerization …
[HTML][HTML] Hafnium vs. Zirconium, the perpetual battle for supremacy in catalytic olefin polymerization: A simple matter of electrophilicity?
A Vittoria, GP Goryunov, VV Izmer, DS Kononovich… - Polymers, 2021 - mdpi.com
The performance of C 2-symmetric ansa-hafnocene catalysts for isotactic polypropylene
typically deteriorates at increasing temperature much faster than that of their zirconium …
typically deteriorates at increasing temperature much faster than that of their zirconium …
[HTML][HTML] Triptycene as a scaffold in metallocene catalyzed olefin polymerization
PS Kulyabin, MI Sharikov, VV Izmer… - Dalton …, 2024 - pubs.rsc.org
A set of metallocene olefin polymerization catalysts bearing triptycene moieties in either
position 4–5 (complexes Ty1–Ty5) or in position 5–6 (complexes Ty6–Ty8) of the basic …
position 4–5 (complexes Ty1–Ty5) or in position 5–6 (complexes Ty6–Ty8) of the basic …
Perfectly Isotactic Polypropylene upon In Situ Activation of Ultrarigid meso Hafnocenes
L Stieglitz, TM Lenz, A Saurwein… - Angewandte Chemie …, 2022 - Wiley Online Library
For more than 40 years, the synthesis of C2‐symmetric indenyl‐based racemic
metallocenes for the isoselective polymerization of propylene relied on a tedious separation …
metallocenes for the isoselective polymerization of propylene relied on a tedious separation …
Prominent Spatial Structure and Synergistic Linkage Effects in Bimetallic Titanium Olefin Polymerization Catalysts
S Zhang, C Cao, W Guo, Y Zhang, M Sun… - Industrial & …, 2022 - ACS Publications
In this contribution, the binuclear Ti olefin polymerization catalyst 1, 4-phenoxy {[Me2Si
(C5H4) 2] TiCl} 2 (Complex 2) was synthesized by the reaction of hydroquinone with [Me2Si …
(C5H4) 2] TiCl} 2 (Complex 2) was synthesized by the reaction of hydroquinone with [Me2Si …
Perfekt Isotaktisches Polypropylen nach In Situ Aktivierung von Ultrarigiden meso Hafnocenen
L Stieglitz, TM Lenz, A Saurwein… - Angewandte Chemie, 2022 - Wiley Online Library
Für über 40 Jahre basierte die Synthese von racemischen C2‐symmetrischen indenyl‐
Metallocenen für die isospezifische Polymerisation von Propylen auf einer sehr …
Metallocenen für die isospezifische Polymerisation von Propylen auf einer sehr …
Fiber Spinning of Ultrahigh Molecular Weight Isotactic Polypropylene: Melt Spinning and Melt Drawing
L Stieglitz, C Geiger, PF Großmann… - …, 2023 - Wiley Online Library
Herein, this work reports fiber spinning of tailored isotactic polypropylene (iPP) by melt
spinning and melt drawing, yielding an adjustable diameter of 40–400 μm. The crystallinity …
spinning and melt drawing, yielding an adjustable diameter of 40–400 μm. The crystallinity …
[PDF][PDF] Non-Chemical Routes to Tailor Polymer Polydispersity, Activity and Fragmentation Mechanism of ZN Catalytic Systems in Heterogeneous Propylene …
M Sheikhzadeh, S Pourmahdian - Iranian Journal of Polymer Science …, 2022 - jips.ippi.ac.ir
Non-Chemical Routes to Tailor Polymer Polydispersity, Activity and Fragmentation
Mechanism of Zigler-Natta Catalytic Systems in Page 1 Keywords: ABSTRACT Available in …
Mechanism of Zigler-Natta Catalytic Systems in Page 1 Keywords: ABSTRACT Available in …