Get access
Advertisement

Isoprene–Styrene Chain Shuttling Copolymerization Mediated by a Lanthanide Half-Sandwich Complex and a Lanthanidocene: Straightforward Access to a New Type of Thermoplastic Elastomers

Authors

  • Dr. Andreia Valente,

    1. Unité de Catalyse et Chemie du Solide, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)
    Search for more papers by this author
  • Dr. Gregory Stoclet,

    1. Unité Matériaux Et Transformations, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)
    Search for more papers by this author
  • Dr. Fanny Bonnet,

    1. Unité de Catalyse et Chemie du Solide, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)
    Search for more papers by this author
  • Prof. André Mortreux,

    1. Unité de Catalyse et Chemie du Solide, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)
    Search for more papers by this author
  • Prof. Marc Visseaux,

    1. Unité de Catalyse et Chemie du Solide, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)
    Search for more papers by this author
  • Prof. Philippe Zinck

    Corresponding author
    1. Unité de Catalyse et Chemie du Solide, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)
    • Unité de Catalyse et Chemie du Solide, CNRS, University Lille 1, Science and Technology, 59655 Villeneuve d'Ascq (France)===

    Search for more papers by this author

  • This work was supported by the French Ministry of Education and Research. We acknowledge Aurélie Malfait for technical assistance. Financial support from Région Nord Pas de Calais and European FEDER for SAXS laboratory equipment is gratefully acknowledged.

Abstract

A lanthanide half-sandwich complex and a ansa lanthanidocene have been assessed for isoprene–styrene chain shuttling copolymerization with n-butylethylmagnesium (BEM). In the presence of 1 equiv BEM, a fully amorphous multiblock microstructure of soft and hard segments is achieved. The microstructure consists of poly(isoprene-co-styrene) blocks, with hard blocks rich in styrene and soft blocks rich in isoprene. The composition of the blocks and the resulting glass transition temperatures (Tg) can be easily modified by changing the feed and/or the relative amount of the catalysts, highlighting a new class of thermoplastic elastomers (TPEs) with tunable transition temperatures. The materials self-organize into nanostructures in the solid state.

Get access to the full text of this article

Ancillary