The monopotassium salt of the ligand of a Ziegler–Natta catalyst [PDF]
, 1993 The anion of dipotassium (tert-butylamino)-dimethyl(tetramethylcyclopentadienyl)silanediide can coordinate to transition metals to form precursors for single-component Ziegler-Natta polymerization catalysts.
Bercaw, John E. +2 more
core +1 more source
Crystal structures and polymorphism of polymers: Influence of defects and disorder [PDF]
, 2018 The crystal structures and the polymorphism of polymers are described on the basis of the main principles that define the conformation of polymer chains in the crystalline state and the modes of packing of macromolecules.
Auriemma, Finizia +3 more
core +1 more source
How can pH value during catalyst preparation affect the performance of vanadium-modified (SiO2/MgO/ MgCl2)•TiClx Ziegler-Natta polyethylene catalysts [PDF]
Polyolefins Journal, 2018 Vanadium-modified (SiO2/MgO/MgCl2)•TiClx Ziegler-Natta catalysts were prepared through co-impregnation of water-soluble magnesium and vanadium salts under different pH values.
Ting Fu +5 more
doaj +1 more source
What do We Know about Reaction Mechanism? The Electrospray Ionization Mass Spectrometry Approach [PDF]
, 2011 Santos, LS (reprint author), Univ Talca, Lab Asymmetr Synth, POB 747, Talca, Chile.Man's fascination with chemical reactions goes back to ancient times.
Santos, L.S.
core +2 more sources
Промышленные испытания новой модификации титан-магниевого катализатора полимеризации пропилена [PDF]
, 2012 Рассмотрены состав, свойства и основные области применения современных каталитических систем IV и V поколений для промышленного производства полимеров на основе пропилена.
Дудченко, Вячеслав Кириллович +5 more
core +2 more sources
Modeling intraparticle transports during propylene polymerizations using supported metallocene and dual function metallocene as catalysts: Single particle model [PDF]
, 2014 Two improved multigrain models (MGMs) for preparing homopolypropylene and long chain branched polypropylene via propylene polymerization using silica-supported metallocene or dual function metallocene as catalysts are presented in this paper ...
Che, Liming +4 more
core +1 more source
Study of Ziegler-Natta/(2-PhInd)2ZrCl2 hybrid catalysts performance in slurry propylene polymerization [PDF]
Polyolefins Journal, 2015 Several types of hybrid catalysts are made through mixing of 4th generation Ziegler-Natta (ZN) and (2-PhInd)2ZrCl2 metallocene catalysts using triethylaluminum (TEA) as coupling agent.
Gholam-Reza Nejabat +7 more
doaj +1 more source
Design of stereoselective Ziegler–Natta propene polymerization catalysts [PDF]
Proceedings of the National Academy of Sciences, 2006 After five decades of largely serendipitous (albeit formidable) progress, catalyst design in Ziegler–Natta olefin polymerization, i.e., the rational implementation of new active species to target predetermined polyolefin architectures, has ultimately become a realistic ambition, thanks to a much deeper fundamental understanding and major ...
BUSICO, VINCENZO +5 more
openaire +3 more sources
Advantages of an Emulsion‐Produced Ziegler‐Natta Catalyst Over a Conventional Ziegler‐Natta Catalyst
Macromolecular Materials and Engineering, 2005 AbstractSummary: Self‐supported and MgCl2‐supported Ziegler‐Natta catalysts, produced by two catalyst synthesis methods are compared. Borealis Polymers OY (Finland), who supplied the catalysts, developed the catalyst synthesis methods. The first method (Method One) is based on an emulsion system and consists of an in situ single step preparation.
Mohammed Abboud +2 more
openaire +1 more source
Angewandte Chemie, Volume 138, Issue 15, 6 April 2026.Titanium silicalite‐1 (TS‐1), used in industrial selective oxidation processes, depends on specific, yet still unresolved Ti sites, dispersed within the framework of an MFI‐zeolite. Applying high field (28.2 T) 47/49Ti NMR and 17O NMR spectroscopy for an array of TS‐1 catalysts enables the development of an NMR crystallography protocol and the ...
Christoph J. Kaul +14 more
wiley +2 more sources