AI Article Synopsis
- Amine-functionalized polyhedral oligomeric silsesquioxane (POSS) is a unique silica nanoparticle that can create stable structures at the interface of toluene and water, effectively ‘locking’ different liquid phases in place.
- The assembly density of POSS can be adjusted by changing concentration, pH, and functionalization levels, leading to better control over interfacial properties.
- Unlike traditional nanoparticle surfactants, POSS provides higher interface coverage and stability, making it advantageous for creating Pickering emulsions.
Article Abstract
Amine-functionalized polyhedral oligomeric silsesquioxane (POSS), the smallest, monodisperse cage-shaped silica cubic nanoparticle, is exceptionally interfacially active and can form assemblies that jam the toluene/water interface, locking in non-equilibrium shapes of one liquid phase in another. The packing density of the amine-functionalized POSS assembly at the water/toluene interface can be tuned by varying the concentration, the pH value, and the degree of POSS functionalization. Functionalized POSS gives a higher interface coverage, and hence a lower interfacial tension, than nanoparticle surfactants formed by interactions between functionalized nanoparticles and polymeric ligands. Hydrogen-bonded POSS surfactants are more stable at the interface, offering some unique advantages for generating Pickering emulsions over typical micron-sized colloidal particles and ligand-stabilized nanoparticle surfactants.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.201903420 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!