Results 71 to 80 of about 251,124 (199)

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  

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

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

Half-sandwich titanium complexes stabilized by a novel silsesquioxane ligand:Soluble model systems for silica-grafted olefin polymerization catalysts

, 1998
The cuboctameric silsesquioxane silanol (c-C5H9)(7)Si8O12(OH) has been applied as a model support for silica-grafted olefin polymerization catalysts. Complexes of the type Cp "[(c-C5H9)(7)Si8O13]TiX2 (Cp " = 1,3-C5H3(SiMe3)(2); X = Cl, CH2Ph) form active
van Santen, RA, van Tol, MFH, Santen, van, R.A., Tol, van, M.F.H., Abbenhuis, H.C.L., Duchateau, R, Thiele, SKH, Duchateau, R., Abbenhuis, HCL, Thiele, S.K.H., Maurits F. H. van Tol, Hendrikus C. L. Abbenhuis, Robbert Duchateau, Sven K.-H. Thiele, Rutger A. van Santen   +14 more
core   +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

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

[Synthetic and mechanistic investigation of olefin polymerization catalyzed by early transition metal compounds]

, 1993
During the second year we continued to prepare and characterize organoyttrium and organoscandium compounds for use as catalysts for polymerizing simple olefins and diolefins. Simple, one-component systems are being pursued, suitable for chain initiation,
Bercaw, J.E.
core   +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  

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