Results 121 to 130 of about 26,493 (337)

Heterogeneity of Active Sites in the Polymer Chain Transfer Reactions at Olefin Polymerization over Multisite Supported Ziegler-Natta Catalysts. [PDF]

Polymers (Basel), 2023
Matsko M, Zakharov V.
europepmc   +1 more source

Unlocking Catalyst Activation as a Critical Bottleneck in Cross‐Coupling Reactions: Room‐Temperature Couplings of Weak Nucleophiles Enabled by [Pd(1‐MeNAP)TFA]2 Precatalysts

Angewandte Chemie International Edition, EarlyView.
In many Pd‐catalyzed cross‐couplings, catalyst performance has been found to be limited by catalyst activation. Methylnaphthyl (MeNAP) palladium trifluoroacetate dimers are presented as easy‐to‐store and easy‐to‐handle precursors, which rapidly activate under reaction conditions, even when only weakly coordinating, non‐reducing nucleophiles are present.
Sourav Manna, Henric F. Janning, Nikolaos V. Tzouras, Jane Anto Simplica Sagayaraj, Fadil Faizal Mannighayil, Angelino Doppiu, Lukas J. Gooßen   +6 more
wiley   +1 more source

A Computational Evaluation of the Steric and Electronic Contributions in Stereoselective Olefin Polymerization with Pyridylamido-Type Catalysts. [PDF]

Molecules, 2023
D'Anania O, De Rosa C, Talarico G.
europepmc   +1 more source

Microfluidic Bioreactor Made of Cyclo-Olefin Polymer for Observing On-Chip Platelet Production [PDF]

, 2021
H Kumon, Shinya Sakuma, Sou Nakamura, Hisataka Maruyama, Koji Eto, Fumihito Arai   +5 more
openalex   +1 more source

Synthesis and characterization of butadiene-1,3 and octene-1 copolymer prepared by a Ziegler-Natta catalyst based on neodymium

Polímeros, 2011
The aim of this work is to evaluate the influence of octene-1 incorporation in the polybutadiene chain on the polymerization reaction and polymer characteristics.
Gustavo M. Silva, Fernanda M. B. Coutinho, Ivana L. Mello, Marcos A. S. Costa, Daniele F. C. Junger   +4 more
doaj  

Advancing the Compositional Analysis of Olefin Polymerization Catalysts with High-Throughput Fluorescence Microscopy. [PDF]

J Am Chem Soc, 2022
Werny MJ, Siebers KB, Friederichs NH, Hendriksen C, Meirer F, Weckhuysen BM.   +5 more
europepmc   +1 more source

Catalytic Olefin Polymerization is a Mature Field. Isn't it? [PDF]

, 2006
Vincenzo Busico
openalex   +1 more source

Aziridination of a Single Carbon Atom in Alkenes via Energy Transfer Catalysis

Angewandte Chemie International Edition, EarlyView.
Contrary to traditional alkene aziridination via (formal) nitrene transfer, we herein report a strategy that achieves intermolecular aziridination of a single alkene carbon atom and installs an additional group at the other. Enabled by metal‐free energy transfer (EnT) catalysis, alkenyl boronates and silanes are transformed into reactive intermediates ...
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

MAO- and Borate-Free Activating Supports for Group 4 Metallocene and Post-Metallocene Catalysts of α-Olefin Polymerization and Oligomerization. [PDF]

Polymers (Basel), 2023
Nifant'ev IE, Komarov PD, Kostomarova OD, Kolosov NA, Ivchenko PV.   +4 more
europepmc   +1 more source

Advanced Separation Technologies for Light Olefin and Alkane (C2‐C4): Recent Advances in Extraction, Adsorption, and Membrane Separation

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the rapid development of the petrochemical industry, efficient separation technology for olefins and alkanes with the same number of carbon atoms has become an important research topic to enhance the efficiency of petroleum resource utilization and optimize product quality.
Shasha Zhao, Kang Zhao, Zhen Liu
wiley   +1 more source