Inversion of Dispersion: Colloidal Stability of Calixarene-Modified Metal-Organic Framework Nanoparticles in Nonpolar Media

Uiseok Jeong, Nesibe A. Dogan, Mousumi Garai, Thien S. Nguyen, J. Fraser Stoddart, Cafer T. Yavuz

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Making metal-organic frameworks (MOFs) that are stabilized in nonpolar media is not as straightforward as making their inorganic nanoparticle counterparts, since surfactants penetrate through the porous structures or dissolve the secondary building units (SBUs) through ligand-exchange linker modulator mechanisms. Herein, we report that calixarenes stabilize UIO-66 nanoparticles effectively by remaining outside the grains through size exclusion, without pores becoming blocked, all the while providing amphiphilicity that permits the formation of stable colloidal dispersions with much narrower size distributions. Using the UIO-66 dispersed solutions, we show that smooth films from an otherwise immiscible polystyrene can be made feasibly.
Original languageEnglish (US)
Pages (from-to)12182-12186
Number of pages5
JournalJournal of the American Chemical Society
Volume141
Issue number31
DOIs
StatePublished - Aug 7 2019
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Colloid and Surface Chemistry
  • Chemistry(all)
  • Catalysis

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