Issue 10, 2011
From the journal:

New Journal of Chemistry

Polyisoprene-based block copolymers as supports for metallocene and post-metallocene catalytic systems toward ethylene polymerization†‡

Bertrand Heurtefeu,ab   Jules Oriou,ab   Emmanuel Ibarboure,ab   Éric Cloutetab  and  Henri Cramail*ab  

* Corresponding authors

a Université de Bordeaux, Laboratoire de Chimie des Polymères Organiques, IPB-ENSCBP, 16, Avenue Pey Berland, Pessac Cedex, France
E-mail: Cramail@enscbp.fr
Fax: +335 40 00 84 87
Tel: +335 40 00 84 86

b CNRS, Laboratoire de Chimie des Polymères Organiques, Pessac Cedex, France

Abstract

In this work, we report how micellar structures obtained by the self-assembly in heptane of polyisoprene-block-poly(methyl methacrylate) (PI-b-PMMA) and polyisoprene-block-poly(ethylene oxide) (PI-b-PEO) can be effectively used as organic supports for ethylene polymerization catalyzed by metallocene and post-metallocene catalysts. The self-assembly in heptane of these block copolymers was demonstrated by means of dynamic light scattering and the influence of methylaluminoxane (MAO) on this self-assembly was analyzed. The so-formed assemblies, composed of either PMMA or PEO cores and PI corona, were used as organic supports for metallocene or post-metallocene catalysts with methylaluminoxane (MAO) as an activator, to produce micrometric polyethylene beads.

Graphical abstract: Polyisoprene-based block copolymers as supports for metallocene and post-metallocene catalytic systems toward ethylene polymerization

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Article information

DOI
https://doi.org/10.1039/C1NJ20309F
Article type
Paper
Submitted
08 Apr 2011
Accepted
29 Jun 2011
First published
22 Jul 2011

New J. Chem., 2011,35, 2322-2332

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Polyisoprene-based block copolymers as supports for metallocene and post-metallocene catalytic systems toward ethylene polymerization

B. Heurtefeu, J. Oriou, E. Ibarboure, É. Cloutet and H. Cramail, New J. Chem., 2011, 35, 2322 DOI: 10.1039/C1NJ20309F

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