Macroalkoxyamines and macroRAFT agents based on polyethylene for the syntheses of polyolefin based polar block copolymers

  • Lopez R. Godoy (Laboratoire de Chimie et Procedes de Polymerisation) ;
  • Boisson C. (Laboratoire de Chimie et Procedes de Polymerisation) ;
  • D'Agosto F. (Laboratoire de Chimie et Procedes de Polymerisation) ;
  • Spitz R. (Laboratoire de Chimie et Procedes de Polymerisation) ;
  • Boisson F. (Service de RMN de la Federation des Polymeristes Lyonnais) ;
  • Gigmes D. (UMR 6517 Chimie, Biologie et Radicaux Libres, Equipe Chimie Radicalaire, Organique et Polymeres de Specialite CNRS/Universites d'Aix-Marseille) ;
  • Bertin D. (UMR 6517 Chimie, Biologie et Radicaux Libres, Equipe Chimie Radicalaire, Organique et Polymeres de Specialite CNRS/Universites d'Aix-Marseille)
  • Published : 2006.10.13

Abstract

Alkoxyamine and thiocarbonyl thio end capped polyethylene (PE) chains were synthesized using a direct and simple approach consisting in reacting di(polyethylenyl)magnesium (PE-Mg-PE) chains with a range of nitroxides and disulfides of thiocarbonyl thio compounds. PE-Mg-PE compounds were prepared by a catalyzed chain growth reaction of ethylene on nbutyloctylmagnesium (BOMg) with a neodymocene complex $(C_{5}Me_{5})_{2}NdCl_{2}Li(OEt_{2})_{2}$. Complete characterizations confirm the introduction of the desired end groups. The controlled radical polymerization (NMP and RAFT) of butyl acrylate mediated by these functional polyethylenes was successful.

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