omega-Dimethyl ammonium tetrakis-pentafluorophenyl borate polyisoprene as an organic template for alkylated metallocenes toward the synthesis of polyethylene beads - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Polymer Chemistry Année : 2012

omega-Dimethyl ammonium tetrakis-pentafluorophenyl borate polyisoprene as an organic template for alkylated metallocenes toward the synthesis of polyethylene beads

Résumé

In this work, we report the self-assembly in heptane of omega-dimethyl ammonium tetrakis-pentafluorophenyl borate polyisoprenes into micellar aggregates and the use of these nano-objects to support alkylated metallocenes toward ethylene polymerization. Dynamic light scattering was used to demonstrate the self-assembly and the formation of the micellar structures having a core of polar dimethyl ammonium tetrakis-pentafluorophenyl borate moieties, and a corona of polyisoprene (PI). The latter were then used as organic supports for alkylated metallocenes to produce unprecedented millimetric polyethylene beads without loss of catalytic activity.
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Dates et versions

hal-00758756 , version 1 (29-11-2012)

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Bertrand Heurtefeu, Emmanuel Ibarboure, Henri Cramail. omega-Dimethyl ammonium tetrakis-pentafluorophenyl borate polyisoprene as an organic template for alkylated metallocenes toward the synthesis of polyethylene beads. Polymer Chemistry, 2012, 3 (5), pp.1133-1136. ⟨10.1039/c2py00588c⟩. ⟨hal-00758756⟩

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