Results 71 to 80 of about 5,339 (237)

Transition Metal Catalysis on Olefins: Some Considerations Relative to Migratory Insertion

CHIMIA, 2001
Olefin migratory insertion into a metal–hydrogen or a metal–carbon bond is an ubiquitous step in olefin coordination catalysis by transition metal complexes. When the catalytic system has element(s) of chirality, and when the two carbon atoms of
Giambattista Consiglio
doaj  

L'alkylidénolyse des oléfines catalysée par les complexes des métaux de transition Alkylidenolysis of Olefins Catalysed by Transition-Metal Complexes

Oil & Gas Science and Technology, 2006
Une grande variété de complexes de métaux de transition, homogènes ou hétérogènes, sont susceptibles de provoquer la scission des doubles et triples liaisons carbone-carbone.
Chauvin Y., Commereuc D.
doaj   +1 more source

Parallel Catalyst Synthesis Protocol for Accelerating Heterogeneous Olefin Polymerization Research. [PDF]

Polymers (Basel), 2023
Chammingkwan P, Khoshsefat M, Terano M, Taniike T.   +3 more
europepmc   +1 more source

Modeling and Simulation of Olefin Polymerization at Microstructure Level [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2008
A new model based on a combination of the polymeric multigrain and multilayer models has been developed to predict the polymerization rate, particle growth, morphology, effective parameters on broadening of the molecular weight distribution, number and ...
Ali Dashti, Ahmad Ramazani S.A.
doaj  

Magnesium alkoxide precursor to Ziegler-Natta catalyst - emphasis on morphology studies through computer vision approach [PDF]

Polyolefins Journal
MgCl2 supported Ti catalyst is used in commercial propylene polymerization process. Morphology is a key performance determination parameter for polymer resins produced by commercial olefin polymerization process. Higher resin flowability and bulk density
Yogeshwar Thakare, Ajay Kothari, Saurabh Shinde, Pooja Kadam, Natarajan Venkateswaran, Virendrakumar Gupta   +5 more
doaj   +1 more source

Super Active Catalyst for Olefin Polymerization [PDF]

Polymer Journal, 1980
Study to get a high activity for olefin polymerization by a supporting Ziegler-type catalyst on MgCl2 was carried out. Only heating anhydrous MgCl2 with TiCl4, very little amount of TiCl4 was fixed because of high crystallinity and small surface of anhydrous MgCl2.
openaire   +1 more source

A Hydrocarbon Soluble, Molecular and "Complete" Al-Cocatalyst for High Temperature Olefin Polymerization. [PDF]

Polymers (Basel), 2023
Urciuoli G, Zaccaria F, Zuccaccia C, Cipullo R, Budzelaar PHM, Vittoria A, Ehm C, Macchioni A, Busico V.   +8 more
europepmc   +1 more source

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

Angewandte Chemie International Edition, EarlyView.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source

Polyolefin reweaved ultra-micropore membrane for CO2 capture

Nature Communications
High-performance gas separation membranes have potential in industrial separation applications, while overcoming the permeability-selectivity trade-off via regulable aperture distribution remains challenging.
Xiuling Chen, Guining Chen, Cong Xie, Lei Wu, Gongping Liu, Nanwen Li, Wanqin Jin   +6 more
doaj   +1 more source

Octahedral Zirconium Salan Catalysts for Olefin Polymerization: Substituent and Solvent Effects on Structure and Dynamics. [PDF]

Inorg Chem, 2023
Dall'Anese A, Kulyabin PS, Uborsky DV, Vittoria A, Ehm C, Cipullo R, Budzelaar PHM, Voskoboynikov AZ, Busico V, Tensi L, Macchioni A, Zuccaccia C.   +11 more
europepmc   +1 more source