Polymerization catalysis with transition metal amidinate and related complexes

S Collins - Coordination Chemistry Reviews, 2011 - Elsevier
Applications of transition metal amidinate [RC (NR′) 2], guanidinate and amidopyridine
complexes to olefin coordination polymerization are reviewed. In addition, the use of …

The chemistry of catalyst activation: The case of group 4 polymerization catalysts

M Bochmann - Organometallics, 2010 - ACS Publications
Organometallic chemistry has provided the foundation for the development of a wide range
of new olefin polymerization catalysts over the last two to three decades. The unraveling of …

Highly Efficient, Living Coordinative Chain-Transfer Polymerization of Propene with ZnEt2:  Practical Production of Ultrahigh to Very Low Molecular Weight …

W Zhang, LR Sita - Journal of the American Chemical Society, 2008 - ACS Publications
Highly efficient, living coordinative chain-transfer polymerization (CCTP) of propene can be
conducted with the highly active catalyst derived from equimolar amounts of (η5-C5Me5) Hf …

Buried volume analysis for propene polymerization catalysis promoted by group 4 metals: a tool for molecular mass prediction

L Falivene, L Cavallo, G Talarico - ACS Catalysis, 2015 - ACS Publications
A comparison of the steric properties of homogeneous single site catalysts for propene
polymerization using the percentage of buried volume (% V Bur) as molecular descriptor is …

[PDF][PDF] Same Ligand, Different Metals: Diiodo− Salan Complexes of the Group 4 Triad in Isospecific Polymerization of 1-Hexene and Propylene

AD Cohen, J Kopilov, M Lamberti, V Venditto… - Macromolecules, 2010 - chglib.icp.ac.ru
The design of catalysts that will enable the living polymerization of propylene with high
activities and isoselectivities under ambient conditions remains a challenge in current …

Variability of chain transfer to monomer step in olefin polymerization

G Talarico, PHM Budzelaar - Organometallics, 2008 - ACS Publications
Computational studies of a variety of polymerization catalyst models have revealed an
unexpected fluidity in chain termination mechanisms. For many early transition metal olefin …

Advanced characterization of recycled polyolefins: A holistic approach to study their microstructure and contaminations

D Tranchida, D Salaberger, L Vukusic, G Hubner… - Polymer, 2025 - Elsevier
Achieving the detailed knowledge of recycled materials composition is a formidable task due
to the presence of organic and inorganic contaminations. Additionally, the complexity of the …

Effects of external donors and hydrogen concentration on oligomer formation and chain end distribution in propylene polymerization with Ziegler‐Natta catalysts

T Vestberg, P Denifl, M Parkinson… - Journal of Polymer …, 2010 - Wiley Online Library
The effect of type and concentration of external donor and hydrogen concentration on
oligomer formation and chain end distribution were studied. Bulk polymerization of …

Chemical composition fractionation of olefin plastomers/elastomers by solvent and thermal gradient interaction chromatography

A Ndiripo, A Albrecht, B Monrabal… - Macromolecular …, 2018 - Wiley Online Library
Olefin plastomers/elastomers are typically copolymers with high comonomer contents and
low crystallinities. Therefore, the fractionation of these materials with crystallization‐based …

A New Insight into the Comonomer Effect through NMR Analysis in Metallocene Catalysed Propene–co–1-Nonene Copolymers

Q Wu, A García-Peñas, R Barranco-García… - Polymers, 2019 - mdpi.com
The “comonomer effect” is an intriguing kinetic phenomenon in olefin copolymerization that
still remains without a detailed explanation. It typically relates to the rate of enhancement …