Organic support for ethylene polymerization based on the self-assembly in heptane of end-functionalized polyisoprene
CLOUTET, Eric
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
CRAMAIL, Henri
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
< Réduire
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Langue
en
Article de revue
Ce document a été publié dans
Polymer Chemistry. 2010, vol. 1, n° 7, p. 1078-1085
Royal Society of Chemistry - RSC
Résumé en anglais
In this work, we report how micellar structures obtained by the self-assembly in heptane of polyisoprene end-capped with a hindered tertiary alcohol moiety (PI-phi(2)OH) can be efficiently used as organic supports for ...Lire la suite >
In this work, we report how micellar structures obtained by the self-assembly in heptane of polyisoprene end-capped with a hindered tertiary alcohol moiety (PI-phi(2)OH) can be efficiently used as organic supports for olefin polymerization single-site catalysts. PI-phi(2)OH has been synthesized by end-capping living polyisoprenyllithium with an excess of benzophenone. Dynamic light scattering analysis indicates a self-assembly of PI-phi(2)OH in heptane, a good solvent for polyisoprene and a poor one for the polar end-group. The so-formed micelle-like nanoparticles, composed of a di-phenyl alcohol group core and a polyisoprene corona were used as organic supports for catalytic system composed of aluminic activators, trimethylaluminium (TMA) or methylaluminoxane (MAO), and metallocene or post-metallocene catalysts, to produce micrometric polyethylene beads.< Réduire
Mots clés en anglais
SYSTEM
MICELLES
BEADS
METALLOCENE CATALYSTS
PROPYLENE POLYMERIZATION
BRANCHED POLYETHYLENE
Origine
Importé de halUnités de recherche