Results 61 to 70 of about 2,167 (208)
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan +5 more
wiley +1 more source
The effect of different prepared magnesium sources including MgCl2 (ZN-THF), metallic magnesium powder (ZN-O), and MGE (ZN-MGE) as the support of titanium-based Ziegler-Natta catalysts on behaviors of gas-phase ethylene/1-hexene copolymerization was ...
Thanyaporn Pongchan +5 more
doaj +1 more source
Transition metal imido compounds as Ziegler-Natta olefin polymerisation catalysts
Transition metal imido compounds having the general formula [(L) nM(NR)] [where (L) n is a supporting ligand or ligand set, and R typically is alkyl or aryl] have been known for nearly 50 years, and ...
Bolton, PD +4 more
core +1 more source
The target of the present study was to investigate the structure-property relationships of heterophasic ethylenepropylene (EP) copolymers based on a single-site (metallocene) catalyst (SSC) supported with an emulsion technology developed by Borealis. The
M. Aarnio-Winterhof +3 more
doaj +1 more source
Ziegler-Natta catalysts for propylene polymerization – Interaction of an external donor with the catalyst [PDF]
The interaction of the external donor (propyltrimethoxysilane - PTMS) with titanium-magnesium catalysts (TMCs) containing dibutylphthalate (DBP) as internal donor, which were prepared in different ways, was studied by chemical analysis and infrared ...
Valentina Panchenko +2 more
doaj +1 more source
Schematic representation of the REMD‐RM method, which integrates the Red Moon (RM) method and the replica‐exchange molecular dynamics (REMD) method. By enhancing molecular reconfiguration and diffusion in the reactant system, the REMD‐RM method can efficiently explore a wide phase space and effectively accelerate the search for reaction candidates ...
Kentaro Matsumoto +4 more
wiley +1 more source
MgCl2 Support Preparation Techniques and Their Effects on Ziegler-Natta Catalysts Performance in Propylene Polymerization [PDF]
A primary adduct of MgCl2.3.3EtOH (A0) was prepared by melt quenching and then it was further dealcoholated by thermal and chemical methods. In thermal dealcoholation, two different support samples with MgCl2.2.7EtOH (A1) and MgCl2.1.8EtOH (A2) formulas ...
Najmeh Hadian +3 more
doaj +1 more source
Olefin Polymerizations Oriented by Rational Designs of Group‐13 Compounds
In coordination olefin polymerization chemistry, boron and aluminum compounds play important roles in both catalyst components and monomers. This personal account introduces our recent progress on the development of catalyst systems featured by the design of group‐13 counteranions, as well as the application of boronic acid‐crosslinked polyolefins to ...
Ryo Tanaka, Yu Zou
wiley +1 more source
Insight into the Synthesis Process of an Industrial Ziegler–Natta Catalyst [PDF]
Industrial & Engineering Chemistry Research, 58 (2)
Antoine Klaue +5 more
openaire +3 more sources
Quality control for Ziegler-Natta catalysis via spectroscopic fingerprinting [PDF]
Commercial olefin polymerization catalysts are typically produced at a manufacturing site before transport to production facilities for storage and eventual use.
Vantomme, Aurélien +5 more
core +1 more source

