PERUCH, Frédéric; CATARI, Edgar; ZAHRAOUI, Said; ISEL, François; LUTZ, Pierre Joseph

doi:10.1002/masy.200650421

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

PERUCH, Frédéric

Institut Charles Sadron [ICS]
Team 1 LCPO : Polymerization Catalyses & Engineering

CATARI, Edgar
Institut Charles Sadron [ICS]
Polymer Lab, Cent Chem, Caracas

ZAHRAOUI, Said
Institut Charles Sadron [ICS]

Langue

Article de revue

Ce document a été publié dans

Macromolecular Symposia. 2006, vol. 236, p. 168-176

Wiley-VCH Verlag

Résumé en anglais

The major part of the present paper discusses the ability of well-defined omega-undecenyl polystyrene, polyisoprene or poly(styrene-block-isoprene) macromonomers to undergo coordination homopolymerization in the presence of selected titanium catalysts. Special emphasis is given to the influence of the nature of the catalyst, the polymerization temperature and the macromonomer molar mass and concentration on homopolymerization yield and average degree of homopolymerization (DPn). Titanium-based catalytic systems such as CpTiCl3/MAO and Cp*TiCl3/MAO only yielded dimers. The use of the homogeneous metallocene catalyst with constrained ligand geometry (CGC-Ti/MAO) having an open active site, significantly improved the degree of polymerization. increasing macromonomer molar mass, causes only a slight decrease of DPn whereas conversion increased moderately. The final section briefly discusses the copolymerization of omega-undecenyl polystyrene macromonomers with ethylene in the presence of Versipol (TM) catalysts.< Réduire

Mots clés en anglais

titanium

homopolymerization

macromonomer

comb-shaped

Constrained Geometry Catalyst (CGC)

Métadonnées

Partager cette publication !

Licence d’utilisation du document

New materials designed by coordination polymerization of omega-undecenyl macromonomers

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Origine

Unités de recherche