Results 111 to 120 of about 2,075 (218)
, 2016 The copolymerization of ethylene and propylene by a heterogeneous Ti/MgCl2 Ziegler−Natta catalyst is studied with density functional theory calculations.
Tom Ziegler (1535809) +1 more
core +1 more source
, 2016 The effects of an external base (tetrahydrofuran, THF) on the ethylene polymerization properties of the TiCl4/MgCl2 heterogeneous Ziegler−Natta catalyst are examined using density functional methods.
Tom Ziegler (1535809) +1 more
core +1 more source
Ziegler-Natta catalyst alteration
, 2017 Ziegler-Natta (ZN) catalysts are among the most important catalysts for the industrial production of plastics. The main components of ZN catalysts are TiCl4 in combination with an organic aluminum component as a cocatalyst, whereas a wide range of additional components exists which influence the catalyst behavior.
openaire +1 more source
Supported Ziegler-Natta catalysts
Polimery, 1984 JOLANTA PACHA, MARIA NOWAKOWSKA
openaire +1 more source
Polimerização 1,4-cis de butadieno com sistemas catalíticos Ziegler-Natta à base de neodímio
Química Nova, 2004 Nowadays the catalyst systems based on neodymium are the ones most used in the high cis polybutadiene production. These systems contain a neodymium compound (catalyst), an alkylaluminium compound (cocatalyst) and a halogen compound (halogenating agent ...
Mello Ivana L. +5 more
doaj
Comparative Study on Kinetics of Ethylene and Propylene Polymerizations with Supported Ziegler⁻Natta Catalyst: Catalyst Fragmentation Promoted by Polymer Crystalline Lamellae. [PDF]
Polymers (Basel), 2019 Zhang Z +5 more
europepmc +1 more source
High activity Ziegler-Natta catalyst made from Mg powder
, 2006 A series of novel high activity Ziegler-Natta catalysts were manufactured with spherical magnesium powder as the raw material. The morphology and properties of the catalysts and the prepolymer thereof were analyzed and characterized by scanning electron ...
Jin, C, Liu, F, Li, S, Wei, G, San, X
core
The efficient synthesis of polar-functionalized polypropylenes with high molecular weight and high stereoregularity represents a challenging task. This challenge becomes even more daunting when pursuing an industrially preferred heterogeneous process ...
Yu Wang (12152) +3 more
core +1 more source
The Effects of Preparation Methods and Internal Electron Donors on Ziegler-Natta Catalyst Performance and Polypropylene Properties. [PDF]
Polymers (Basel)Li B +6 more
europepmc +1 more source
Quantitative Screening of Ziegler-Natta: Catalyst Regioselectivity
, 2015 High Throughput Experimentation (HTE) has gained importance in the screening of olefin polymerization catalysts. In particular, its recent integration with ‘fast’ 13C NMR spectrometers represents a most powerful tool for mechanistic investigations ...
CIPULLO, ROBERTA
core