Results 21 to 30 of about 251,124 (199)

Continuous Additive Manufacturing using Olefin Metathesis

Advanced Science, 2022
The development of chemistry is reported to implement selective dual‐wavelength olefin metathesis polymerization for continuous additive manufacturing (AM).
Jeffrey C. Foster, Adam W. Cook, Nicolas T. Monk, Brad H. Jones, Leah N. Appelhans, Erica M. Redline, Samuel C. Leguizamon   +6 more
doaj   +1 more source

Data on the evolution of curing characteristics and properties during the room-temperature annealing process in SSBR/BR gums and SSBR/BR/SiO2 composites

Data in Brief, 2019
The present article contains the data of tensile stress-strain curves, crosslinking characteristics curves, filler dispersion images and dynamic mechanical properties of SSBR/BR blends and SSBR/BR/SiO2 composites during room-temperature annealing.
Xinping Zhang, Lei Cai, Chuanwei Wang, Aihua He   +3 more
doaj   +1 more source

Iminopyridine Ni(II) Catalysts Affording Oily Hyperbranched Ethylene Oligomers and/or Crystalline Polyethylenes Depending on the Reaction Conditions: Possible Role of In Situ Catalyst Structure Modifications

Macromol, 2021
Nickel-based ethylene polymerization catalysts have unique features, being able to produce macromolecules with a variable content of branches, resulting in polymers ranging from semicrystalline plastics to elastomers to hyperbranched amorphous waxes and ...
Ilaria D’Auria, Zeinab Saki, Claudio Pellecchia   +2 more
doaj   +1 more source

Active site nature of magnesium dichloride-supported titanocene catalysts in olefin polymerization [PDF]

Polyolefins Journal, 2015
Heterogeneous Ziegler-Natta and homogeneous metallocene catalysts exhibit greatly different active sitenature in olefin polymerization. In our previous study, it was reported that MgCl2-supported titanocenecatalysts can generate both Ziegler-Natta-type ...
Toshiaki Taniike, Keisuke Goto, Minoru Terano   +2 more
doaj   +1 more source

The charge percolation mechanism and simulation of Ziegler–Natta polymerizations. Part VII. Effects of the distribution of chromium active centers on silica on the polymerization of ethylene [PDF]

Journal of the Serbian Chemical Society, 2008
The charge percolation mechanism (CPM) of olefin polymerization in the presence of transition metal compounds has been applied to explain the polymerization of ethylene by silica supported chromium oxide.
DRAGOSLAV STOILJKOVIC, BRANKA PILIC, MISA BULAJIC, NEBOJSA DJURASOVIC, NIKOLAJ OSTROVSKII   +4 more
doaj   +3 more sources

Encapsulation of catalyst in block copolymer micelles for the polymerization of ethylene in aqueous medium

Nature Communications, 2018
Olefin and emulsion polymerizations are incompatible due to the water sensitivity of olefin polymerization catalysts and thus direct synthesis of semi-crystalline polyolefin latexes is difficult.
Camille Boucher-Jacobs, Muhammad Rabnawaz, Joshua S. Katz, Ralph Even, Damien Guironnet   +4 more
doaj   +1 more source

Advances in Mathematical Modeling of Gas-Phase Olefin Polymerization [PDF]

, 2019
Mathematical modeling of olefin polymerization processes has advanced significantly, driven by factors such as the need for higher-quality end products and more environmentally-friendly processes. The modeling studies have had a wide scope, from reactant
Mohd Azlan Hussain, Muhamad Fazly Abdul Patah, Mohammad Jakir Hossain Khan, Mohammad Reza Abbasi, Mohd Farid Atan, Mohd Farid, Bin Atan, Mohammad Jakir, Hossain Khan, Mohd Azlan, Bin Hussain, Mohammad Reza, Abbasi, Muhamad Fazly, Bin Abdul Patah   +9 more
core   +5 more sources

Axial Donating Ligands: A New Strategy for Late Transition Metal Olefin Polymerization Catalysis

, 2016
Axial Donating Ligands: A New Strategy for Late Transition Metal Olefin Polymerization ...
Zhibin Guan (1334145), Dennis H. Leung (2106256), Joseph W. Ziller (1340067)   +2 more
core   +3 more sources

Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system

Polímeros, 2014
The aim of this study was to incorporate an alpha-olefin (1-hexene or 1-dodecene) in a high cis polybutadiene chain, using a neodymium versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system.
Gustavo Monteiro da Silva, Ivana Lourenço de Mello Ferreira, Marcia Parente Melo da Costa, Neusa Maria Tocchetto Pires, Marcos Antonio da Silva Costa   +4 more
doaj   +1 more source

Aminoboratabenzene Derivatives of Zirconium:  A New Class of Olefin Polymerization Catalysts

, 2016
Aminoboratabenzene Derivatives of Zirconium:  A New Class of Olefin Polymerization ...
Arthur J. Ashe (1837027), George Rodriguez (358036), Guillermo C. Bazan (1285935), Saleem Al-Ahmad (2995362), Christian Müller (65008)   +4 more
core   +2 more sources