M
M. R. Ribeiro
Researcher at Instituto Superior Técnico
Publications - 29
Citations - 627
M. R. Ribeiro is an academic researcher from Instituto Superior Técnico. The author has contributed to research in topics: Catalysis & Methylaluminoxane. The author has an hindex of 13, co-authored 27 publications receiving 580 citations. Previous affiliations of M. R. Ribeiro include Technical University of Lisbon & University of Castilla–La Mancha.
Papers
More filters
Journal ArticleDOI
Supported Metallocene Complexes for Ethylene and Propylene Polymerizations: Preparation and Activity
TL;DR: In this article, the main preparation methods for metallocene immobilization on various supports are first systematized and described, and the nature and structure of active sites as well as their formation mechanism are analyzed.
Journal ArticleDOI
Polymerization of Ethylene by the Electrophilic Heteroscorpionate-Containing Complexes [TiCl3(bdmpza)] and [TiCl2(bdmpza){O(CH2)4Cl}] (bdmpza = Bis(3,5-dimethylpyrazol-1-yl)acetate)
A. Otero,Juan Fernández-Baeza,Antonio Antiñolo,Fernando Carrillo-Hermosilla,Juan Tejeda,Enrique Díez-Barra,Agustín Lara-Sánchez,Luis F. Sánchez-Barba,Isabel López-Solera,M. R. Ribeiro,João M. Campos +10 more
TL;DR: In this paper, two new heteroscorpionate-containing titanium complexes, TiCl3(bdmpza) and TiCl2(BDmpza), with methylaluminoxane catalyzes the polymerization of ethylene and show a high catalytic activity.
Journal ArticleDOI
Synthesis of Zirconium(IV) Monocyclopentadienyl−Aryloxy Complexes and Their Use in Catalytic Ethylene Polymerization. X-ray Structure of (η5-C5Me5)Zr{2,6-OC6H3(CH3)2}3
Antonio Antiñolo,Fernando Carrillo-Hermosilla,A. E. Corrochano,Juan Fernández-Baeza,Agustín Lara-Sánchez,M. R. Ribeiro,M. Lanfranchi,A. Otero,M. A. Pellinghelli,and M. F. Portela,J. V. Santos +10 more
TL;DR: In this article, the complex Cp*Zr(2,6-OC6H3tBu2)Cl2 (Cp* = η5-C5Me5) (1) has been prepared by the reaction of the starting material Cp *ZrCl3 and 1 equiv of the lithium salt of the phenol compound.
Journal ArticleDOI
Homo- and copolymerisation of norbornene and styrene with nickel bis(acetyl acetonate)/methylaluminoxane system
TL;DR: In this article, the homo and copolymerisation of norbornene and styrene with nickel bis(acetyl acetonate)/methylaluminoxane system were systematically investigated.
Journal ArticleDOI
Gas permeability properties of decorated MCM-41/polyethylene hybrids prepared by in-situ polymerization
Artur Bento,João P. Lourenço,Auguste Fernandes,M. R. Ribeiro,Javier Arranz-Andrés,Vicente Lorenzo,María L. Cerrada +6 more
TL;DR: In this article, mixed matrix membranes, MMM, based on polyethylene, PE, and silica mesoporous material, MCM-41, have been prepared using these hybrid materials obtained by in situ polymerization in order to achieve higher permeability, selectivity or both magnitudes relative to the existing polymeric PE membranes.