UHMWPE/SBA-15 nanocomposites synthesized by in situ polymerization
FERREIRA, Ana Elisa
Univ Lisbon, Ctr Quim Estrutural
Univ Lisbon, Inst Super Tecn
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
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Univ Lisbon, Ctr Quim Estrutural
Univ Lisbon, Inst Super Tecn
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
FERREIRA, Ana Elisa
Univ Lisbon, Ctr Quim Estrutural
Univ Lisbon, Inst Super Tecn
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Univ Lisbon, Ctr Quim Estrutural
Univ Lisbon, Inst Super Tecn
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
CRAMAIL, Henri
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
LOURENÇO, Joao Paulo
Univ Lisbon, Ctr Quim Estrutural
Univ Lisbon, Inst Super Tecn
Centro de Investigação em Química do Algarve [CIQA]
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Univ Lisbon, Ctr Quim Estrutural
Univ Lisbon, Inst Super Tecn
Centro de Investigação em Química do Algarve [CIQA]
Langue
en
Article de revue
Ce document a été publié dans
Microporous and Mesoporous Materials. 2016, vol. 232, p. 13-25
Elsevier
Résumé en anglais
Different nanocomposites have been attained by in situ polymerization based on ultra-high molecular weight polyethylene (UHMWPE) and mesoporous SBA-15, this silica being used for immobilization of the FI catalyst bis ...Lire la suite >
Different nanocomposites have been attained by in situ polymerization based on ultra-high molecular weight polyethylene (UHMWPE) and mesoporous SBA-15, this silica being used for immobilization of the FI catalyst bis [N-(3-tert-butylsalicylidene)-2,3,4,5,6-pentafluoroanilinato] titanium (IV) dichloride and as filler as well. Two distinct approaches have been selected for supporting the FI catalyst on the SBA-15 prior polymerization. A study on polymerization activity of this catalyst has been performed under homogenous conditions and upon heterogenization. A study of the effect of presence of mesoporous particles and of the immobilization method is also carried out. Moreover, the thermal characterization, phase transitions and mechanical response of some pristine UHMWPEs and UHMWPE/SBA-15 materials have been carried out. Relationships with variations on molar mass, impregnation method of catalyst and final SBA-15 content have been established.< Réduire
Mots clés en anglais
MCM-41
LIVING POLYMERIZATION
UHMWPE
Nanocomposites
Mesoporous SBA-15
FI catalyst
Immobilization approaches
ETHYLENE POLYMERIZATION
OLEFIN POLYMERIZATION
MECHANICAL-PROPERTIES
POLYETHYLENE COMPOSITES
METALLOCENE CATALYSTS
COMPLEXES
TITANIUM
BEHAVIOR
Origine
Importé de halUnités de recherche