Results 121 to 130 of about 13,429 (306)

Element Replacement Approach by Reaction with Lewis Acidic Molten Salts to Synthesize Nanolaminated MAX Phases and MXenes

, 2019
Nanolaminated materials are important because of their exceptional properties and wide range of applications. Here, we demonstrate a general approach to synthesize a series of Zn-based MAX phases and Cl-terminated MXenes originating from the replacement ...
Chai, Zhifang, Chang, Keke, Chen, Ke, Du, Shiyu, Eklund, Per, Huang, Qing, Huang, Zhengren, Hultman, Lars, Li, Mian, Li, Youbing, Lu, Jun, Luo, Kan, Persson, Per O. Å., Rosen, Johanna, Zhou, Jie   +14 more
core   +2 more sources

Engineering Nascent Disentangled Ultra-High-Molecular-Weight Polyethylene Based on Heterogeneous Catalytic Polymerization

Organics
Ultra-high-molecular-weight polyethylene (UHMWPE) is a pivotal material in engineering and biomedical applications due to its exceptional mechanical strength, wear resistance, and impact performance.
Lei Li
doaj   +1 more source

A kinetic model for ethylene oligomerization using zirconium/aluminum- and nickel/zinc-based catalyst systems in a batch reactor [PDF]

, 2014

core   +1 more source

Synthesis of Early Transition Metal Bisphenolate Complexes and Their Use as Olefin Polymerization Catalysts [PDF]

, 2009
Bisphenolate ligands with pyridine- and benzene-diyl linkers have been synthesized and metalated with group 4 and 5 transition metals. The solid-state structures of some of the group 4 complexes have been solved.
Bercaw, John E., Golisz, Suzanne R.
core   +1 more source

Carbon-hydrogen and carbon-carbon bond activation with highly electrophilic transition metal complexes [PDF]

, 1990
Highly electron deficient scandocene derivatives of the types (η^5-C_5Me_5)_2ScR, {(η^5-C_5Me_4)_2SiMe_2}ScR and {(η^5-C_5H_3CMe_3)_2SiMe_2}ScR catalyze the polymerization of ethylene, the head-to-tail dimerization of α olefins, the cyclization of α,ω ...
Bercaw, John E.
core   +1 more source

Exploring microstructure of MgCl2·nEtOH adducts for Ziegler-Natta catalysts

, 2023
Reza Bazvand, Naeimeh Bahri‐Laleh, Hossein Abedini, Mehdi Nekoomanesh, Albert Poater   +4 more
openalex   +2 more sources

Nobelova nagrada za kemiju 2006. [PDF]

, 2006
Ovogodišnju Nobelovu nagradu za kemiju podijelila su trojica dobitnika: Francuz Yves Chauvin, Amerikanci Robert H. Grubbs i Richard R. Schrock. Prema obrazloÞenju Kraljevske švedske akademije znanosti, Nobelova nagrada dodijeljena im je za razvoj ...
L. Frkanec, T. Portada
core   +1 more source

Ziegler-Natta Catalysts

The Journal of the Society of Chemical Industry, Japan, 1967
Yoshinobu TAKEGAMI, Toshimitsu SUZUKI, Masaki FUJII   +2 more
openaire   +2 more sources

Uma revisão sobre polimerização de olefinas usando catalisadores Ziegler-Natta heterogêneos A survey on olefins polymerization using heterogeneous Ziegler-Natta catalysts

Polímeros, 2011
A produção em larga escala de materiais poliméricos de elevado interesse industrial, provenientes da polimerização estereoespecífica de olefinas, tornou-se possível depois do advento dos catalisadores Ziegler-Natta.
Fabricio Machado, José Carlos Pinto
doaj  

Understanding the activity and stability of Lewis acid-modified Ziegler–Natta catalysts for the sustainable production of polypropylene

Journal of Taibah University for Science
Cleaner polymer production involves minimizing environmental impact by using efficient catalysts and eco-friendly synthesis methods. Identifying active and stable catalysts is essential.
Rafik Rajjak Shaikh, Yodsamol Sainu, Supareak Praserthdam, Piyasan Praserthdam   +3 more
doaj   +1 more source