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Ion-sensitive “isothermal” responsive polymers prepared in water

  • Johannes Pall Magnusson
  • , Adnan Khan
  • , George Pasparakis
  • , Aram Omer Saeed
  • , Wenxin Wang
  • , Cameron Alexander

    Research output: Contribution to journalArticlepeer-review

    234 Citations (Scopus)

    Abstract

    Ion-sensitive responsive polymers are prepared under fully aqueous conditions using controlled radical polymerization. Variations in comonomer content and sequence lead to temperature and salt-dependent solution behavior, with cloud-points ranging by ±40 °C following addition of Hofmeister series salts. A “hybrid” block copolymer, composed of a statistical sequence of monomers tipped with a hydrophilic block, formed stable micelle-like assemblies that exhibited burst release of an encapsulated model drug in response to addition of a kosmotrope, Na2SO4, at room temperature.
    Original languageEnglish
    Pages (from-to)10852-10853
    Number of pages2
    JournalJournal of the American Chemical Society
    Volume130
    Issue number33
    DOIs
    Publication statusPublished - 1 Aug 2008

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