Block-copolymers self-assemble into a myriad of fascinating structures. These systems have been instrumental to direct the organization of superstructures of many types of inorganic materials spanning bio-minerals, semiconductors, and even superconductor materials. The traditional approach to stabilize nanostructures of block-copolymers is tuning the chemistry and/or volume fraction of the blocks. The switch between different nanostructures is often sluggish or difficult to activate by simple stimuli such as humidity or temperature. In this presentation, we will show that a single block-copolymer type that <i>per se</i> is only stable in 1D multilayers can organize into multiple nanostructures when physically alloyed by lipids. Polymer-lipid hybrids adopt tunable and remarkably well-ordered 1D lamellar, 2D hexagonal, and 3D bicontinuous cubic structures as a function of changing environmental conditions. Importantly, the unit cell sizes are one order of magnitude smaller than attained with pure block-copolymer systems allowing superior packing density of encapsulated materials.<br/>

Alloying block-copolymers (BCPs) with lipids: Tuning BCP nanostructures and dynamics of transformations

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.