Results 51 to 60 of about 2,167 (208)
Probing into morphology evolution of magnesium ethoxide particles as precursor of Ziegler-Natta catalysts [PDF]
Polyolefins Journal, 2016 Mg(OEt)2 with spherical morphology is one of the most important precursors for the preparation of industrial Ziegler-Natta catalysts. In the present article, morphology evolution of Mg(OEt)2 particles is studied in the course of the synthesis.
Goond Hongmanee +3 more
doaj +1 more source
Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications
Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi +3 more
wiley +1 more source
Tailoring polypropylene properties by package of internal/external donor in Ziegler Natta catalysts [PDF]
Polyolefins JournalInsights have been developed into the influence of different structures, including bismethoxymethylfluorene (B) and 2,2-diisopropyl succinate (I), on both internal donor (ID) and external donor (ED) roles on the performance of MgCl2/ID/TiCl4.
Nona Ghasemi Hamedani +3 more
doaj +1 more source
European Journal of Inorganic Chemistry, Volume 29, Issue 14, 14 May 2026.The preparation of soluble and stable metal M2+ dications only stabilized by weakly coordinating anions, that is, M[WCA]2 salts, is an emerging field that, beyond its fundamental interest, holds promise in reactivity due to the high electrophilicity of the central M2+ center.
Samuel Dagorne +3 more
wiley +1 more source
ReactionsIn this work, an attempt is made to theoretically substantiate the experimentally known facts of the influence of halogen concentration on the catalytic properties of the neodymium-based Ziegler–Natta system.
Alexey N. Masliy +3 more
doaj +1 more source
Process Modeling for Propylene Polymerization to Transfer Reaction Kinetics From Lab to Plant
Chemie Ingenieur Technik, Volume 98, Issue 5, Page 254-261, May 2026.The modeling approach combines an industrial model for a fourth‐generation Ziegler–Natta catalyst with lab‐scale derived kinetics of a novel fifth‐generation catalyst. By transferring intrinsic kinetics across scales, polypropylene production can be predicted. Accurate melt flow rate prediction is only obtained with an additional adjustment.
Anna Konopka +5 more
wiley +1 more source
The evolution of new generaton 'single-site' Ziegler-Natta polymerization catalysts [PDF]
, 2000 Since the discovery of stereospecific polymerization of olefins by K. Ziegler and G. Natta in 1955, tremendous developments have occurred in the area of designing polymerization catalysts.
Bajgur, Chandrasekhar S., Sivaram, S.
core +1 more source
Discovery and development of metallocene-based polyolefins with special properties [PDF]
Polyolefins Journal, 2015 Beside Ziegler-Natta and Phillips catalysts the development of methylaluminoxane (MAO) as cocatalyst in combination with metallocenes or other transition metal complexes for the polymerization of olefins has widely increased the possibilities in ...
Walter Kaminsky, Mercia Fernandes
doaj +1 more source
Microscopy Research and Technique, Volume 89, Issue 5, Page 759-768, May 2026.SEM–EDX and XRD characterization confirm that pouches made from readily available aluminum foil, used in combination with a commercial cryo‐EM transfer system, effectively protect highly atmosphere‐sensitive and/or hygroscopic materials from contamination during transfer from inert environments to the SEM vacuum chamber.
Louis G. Corcoran +8 more
wiley +1 more source
CHIMIA, 1996 The insertion polymerization of propene by using chiral transition metal compounds leads to a variety of poly propene products with different stereoregularities.
Rolf Mülhaupt, Bernhard Rieger
doaj +2 more sources