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From the same journal

Ring-opening (ROP) versus ring-expansion (REP) polymerization of ε-caprolactone to give linear or cyclic polycaprolactones

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Published copy (DOI)

Author(s)

  • José A. Castro-Osma
  • Carlos Alonso-Moreno
  • Joaquín C. García-Martinez
  • Juan Fernández-Baeza
  • Luis F. Sánchez-Barba
  • Agustín Lara-Sánchez
  • Antonio Otero

Department/unit(s)

Publication details

JournalMACROMOLECULES
DateE-pub ahead of print - 16 Aug 2013
DatePublished (current) - 27 Aug 2013
Issue number16
Volume46
Number of pages7
Pages (from-to)6388-6394
Early online date16/08/13
Original languageEnglish

Abstract

Macromolecular engineering of cyclic polycaprolactones has been carried out by a ring-expansion procedure catalyzed by a series of alkyl-organoaluminum initiators. The single-site nature of the initiators allows a very well-controlled macrolactonization process to give moderate to high molecular weight cyclic polymers with narrow polydispersities. Cyclic architectures are supported by a combination of techniques such as viscosity measurements, NMR, and MALDI-TOF MS analysis.

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