Polymeric micro/nanoparticles have attracted significant interest in the past few decades due to their relevance in a number of fields. The methods commonly employed tend to provide particles that have simple morphology of spheres or cylinders that are inherently fluidic and dynamic due to the long chain nature of macromolecules. As more complex particles, in function and structure, are emerging as solutions to a variety of problems, simple and versatile methods to obtain them are a necessity. Towards this aim, our group has developed a miniemulsion crystallization process where polymer single crystal-like growth is confined to a dynamic liquid/liquid interface. This process produces unique hollow polymer capsules termed “crystalsomes” that have excellent mechanical properties compared to their amorphous counterpart the polymersome. This talk will focus upon using blends of amphiphilic block co-polymers in the miniemulsion process to template hierarchically structured crystalsomes. The block co-polymers serve as macromolecular surfactant along with the hydrophobic segment acting as the crystalline motif. It will be shown by altering the hydrophobic monomeric unit, its degree of polymerization, and the particle size a variety of crystalsomes with tunable porosity can be obtained. It will also be discussed how incorporating nanoparticles into the crystalsomes produces unique hybrid functional nanomaterials.

Advanced polymeric particles templated by polymer crystallization at curved liquid/liquid interface

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

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