Results 81 to 90 of about 7,913 (200)
A Practical Guide to Heterogeneous Catalysis in Hydrocarbon Transformations
Chemistry – An Asian Journal, Volume 20, Issue 20, October 17, 2025.A focused overview of the catalytic processing of hydrocarbons to transform them into more valuable compounds is presented. This work is intended to assist BSc, MSc, and PhD students, as well as junior researchers, in selecting and performing appropriate heterogeneous catalytic processes for specific heterogeneous catalytic reactions.
Kelvin A. Sanoja‐Lopez +5 more
wiley +1 more source
Revista Técnica de la Facultad de Ingeniería, 2011 The properties of supported Ziegler-Natta catalysts depend mostly on the preparation of the support. Four kinds of Ziegler-Natta catalysts consisting of TIC4 supported on MgCh were prepared, differting mainly by the method used to prepare the support ...
F. Medina +4 more
doaj
Polímeros, 2000 Foi utilizado o sistema catalítico tipo Ziegler-Natta modificado, constituído por TiCl4/I2/Al(i-Bu)3 para a síntese de polibutadieno com alto teor de unidades 1,4-cis.
Neusa M. T. Pires +2 more
doaj +1 more source
Polímeros, 2014 O objetivo deste trabalho foi estudar sistemas catalíticos ternários constituídos por versatato de neodímio, cloreto de t-butila e hidreto de di-isobutil-alumínio para a polimerização de 1,4-cis de butadieno em hexano.
Neusa Maria Tocchetto Pires +4 more
doaj +1 more source
Organische Trägermaterialien für Ziegler-Natta-Katalysatoren
, 2017 Ziel dieser Arbeit war die Entwicklung eines auf einem organischen Trägermaterial basierenden Ziegler-Natta-Katalysatorsystems, welches die erforderliche Fragmentierbarkeit in möglichst kleine Fragmente aufweist. Hierfür sah das Konzept dieser Arbeit eine direkte Bildung der aktiven Zentren auf fein dispergierten, Hydroxy-funktionalisierten Polystyrol ...
openaire +3 more sources
Polímeros, 2005 Atualmente, há uma grande demanda pelo polibutadieno com alto teor de unidades 1,4-cis, devido às suas excelentes propriedades físicas, tais como alta resistência à abrasão, baixo desenvolvimento de calor, baixa resistência ao rolamento, maior ...
Denise S. S. Nunes +2 more
doaj +1 more source
Electronic Structure, IR and UV-Vis Spectra of Some Suggested Ziegler-Natta Catalysts
Journal of Kufa-Physics, 2018 Three aluminum metal complexes were suggested as Ziegler-Natta catalysts and studied theoretically at the ground and excited states. Becke’s three parameter exchange with Lee, Yang, and Parr correlation functional) density functional theory and SDD ...
Faeq A. AL-Temimeia, Hamid I. Abboodb
doaj +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
Technology Strategies in the Knowldge Economy. The Licensing Activity of Himont [PDF]
The exchange of technologies and technological knowledge - through joint-ventures, partnerships, licensing, cross-licensing, R&D contracts - and the upsurge of markets for technology are main features of the "knowledge-based" economy.
Fabrizio Cesaroni
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Effects Of Electron Beam Irradiation On The Mechanical Properties Of Ethylene Octene Copolymer, Polypropylene and Trimethylolpropane Triacrylate Blends [PDF]
, 2005 The effect of electron beam irradiation on blends of ethylene-octene copolymer (EOC) and polypropylene (PP) with and without trimethylolpropane triacrylate (TMPTA) at various ratios was studied.
Raj Kumar, Harris C.
core