Polymerization of ethylene oxide using yttrium isopropoxide

Young K. Choi, W.M. Stevels, Martinus J.K. Ankone, Pieter J. Dijkstra, Sung W. Kim, Jan Feijen

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Well defined poly(ethylene oxide)s were prepared using yttrium isopropoxide as an initiator. End group analysis using 1H- and 13C NMR spectroscopy revealed that only polymers with isopropyl ether and hydroxyl end groups were produced. The molecular weight is controlled by the initial amount of initiator added and low polydispersity polymer (Mw/Mn ≈ 1.1) was isolated. Sequential polymerization indicated the suitability of this initiator for macromolecular engineering.
Original languageUndefined
Pages (from-to)3623-3629
Number of pages7
JournalMacromolecular chemistry and physics
Issue number197
Publication statusPublished - 1996


  • METIS-105387
  • IR-71255

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