In this poster, the preparation of gold nanoparticles and CdSe quantum dots decorated with ligands containing tetrahydropyran as an acid-labile chain-end is described. These ligand-tailored nanoparticles were utilized to prepare water-in-oil (w/o) emulsions, and the wettability change upon deprotection is utilized in disruption, and in-situ inversion, to oil-in-water (o/w) systems simply by lowering the pH and adjusting the o/w ratio.  Using a photo acid generator (PAG) enabled a photo-triggered inversion. The rate of emulsion disruption was sensitive to the tetrahydropyran substitution pattern, with the methoxy-substituted version giving a more rapid response to external stimuli.

Triggered in situ disruption and inversion of nanoparticle-stabilized droplets

246th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.