Emulsion macromonomer cross-linking. A preparative method for oxidation-responsive nanoparticles with a controlled network structure

Giona Kilcher, Craig Duckham, Nicola Tirelli

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We here report on a preparative, template-based method for oxidation-responsive, poly(propylene sulfide) crosslinked nanoparticles. In this study we demonstrate that preformed, narrow polydispersity, and end-functional polysulfides can be dispersed to yield stable emulsions, which can then be converted into stable nanoparticles through photochemically initiated cross-linking. The nanoparticle size is substantially templated on that of the precursor emulsions; the nanoparticles bulk is an elastomeric material with a homogeneous cross-linking density. The nanoparticles show a peculiar, two-stage behavior upon exposure to oxidants, which is likely composed of a first agglomeration phase followed by swelling. © 2007 American Chemical Society.
    Original languageEnglish
    Pages (from-to)12309-12317
    Number of pages8
    JournalLangmuir
    Volume23
    Issue number24
    DOIs
    Publication statusPublished - 20 Nov 2007

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