Computational modeling of heterogeneous Ziegler-Natta catalysts for olefins polymerization

N Bahri-Laleh, A Hanifpour, SA Mirmohammadi… - Progress in Polymer …, 2018 - Elsevier
Abstract Since 1963, when Karl Ziegler and Giulio Natta were jointly awarded the Nobel
Prize for their discoveries of the catalytic polymerization of olefins with Ti-chlorides and Al …

Orthogonal synthesis and modification of polymer materials

A Shahrokhinia, P Biswas… - Journal of Polymer …, 2021 - Wiley Online Library
In this review, we detail the progress throughout the years toward developing truly
orthogonal polymerization mechanisms and modification procedures en route to complex …

Light as a catalytic switch for block copolymer architectures: metal–organic insertion/light initiated radical (MILRad) polymerization

A Keyes, HE Basbug Alhan, U Ha, YS Liu… - …, 2018 - ACS Publications
We detail a polymer synthetic methodology that merges the techniques of insertion and
radical polymerization methods into a single organometallic catalyst. This metal–organic …

Mechanistic Study on Effect of Electron Donors in Propylene Polymerization Using the Ziegler–Natta Catalyst

X Guo, L Cui, Y Wang, J Yi, J Sun, Z Liu… - The Journal of Physical …, 2021 - ACS Publications
TiCl4/MgCl2 catalysts are still the main industrial catalyst for isotactic polypropylene at
present. However, the mechanism of isotactic polymerization of propylene has not been fully …

Coping with endogeneity and unobserved heterogeneity in real-time clustering critical crash occurrences nested within weather and road surface conditions

A Khoda Bakhshi, MM Ahmed - … journal of injury control and safety …, 2021 - Taylor & Francis
The knot of endogeneity and unobserved heterogeneity are causes of rendering parameter
estimates inconsistent in real-time crash prediction. This study intends to alleviate the …

The Potential Role of Lewis Acid–Base Adducts in Enhancing Stereoselectivity in Ziegler–Natta Catalysts: A DFT Study

KV Raj, VK Gupta, K Vanka - The Journal of Physical Chemistry C, 2023 - ACS Publications
Ziegler–Natta (Z–N) systems have been well established as heterogeneous catalysts that
produce isotactic polypropylene and polyethylene with great efficiency. Such systems …

Polyolefin microstructural deconvolution methods: The good, the bad, and the ugly

JBP Soares - The Canadian Journal of Chemical Engineering, 2023 - Wiley Online Library
The deconvolution of the molecular weight distribution (MWD) of polyolefins into Schultz–
Flory most probable distributions has become the standard method to identify the number of …

Effects of FeCl3 doping on the performance of MgCl2/TiCl4/DNPB catalyst in 1-hexene polymerization

F Nouri-Ahangarani, M Nekoomanesh… - Polyolefins …, 2017 - poj.ippi.ac.ir
The aim of this study was to examine the effect of catalyst doping on the performance of
MgCl2. EtOH/TiCl4 catalyst system. In this regard, a series of undoped as well as FeCl3 …

Ethylene polymerization using N-Heterocyclic carbene complexes of silver and aluminum

N Kimura, D Takeuchi, S Ogura… - Designed Monomers …, 2023 - Taylor & Francis
Various transition metal catalysts have been utilized for ethylene polymerization. Silver
catalysts have attracted less attention as the catalysts, but are potential for production of high …

Two new Cd (II)/Zn (II) coordination polymers: Luminescence properties and synergistic treatment activity with ultrasound therapy on uterine fibroids

HM Liu, XN Shang - Designed Monomers and Polymers, 2022 - Taylor & Francis
Through the self-assembly reaction of 5-substituted isophthalic acid and bis (imidazolyl)
ligands with Cd (II) ion or Zn (II) ion, two new coordination polymers with the chemical …