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Rapid Access to Diverse Multicomponent Hierarchical Nanostructures from Mixed‐Graft Block Copolymers
Ist Teil von
Angewandte Chemie (International ed.), 2022-10, Vol.61 (41), p.e202210067-n/a
Auflage
International ed. in English
Ort / Verlag
Weinheim: Wiley Subscription Services, Inc
Erscheinungsjahr
2022
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Multicomponent nanostructured materials assembled from molecular building blocks received wide attention due to their precisely integrated multifunctionalities. However, discovery of these materials with desirable composition and morphology was limited by their low synthetic scalability and narrow structural tuning window with given building blocks. Here, we report a scalable and diversity‐oriented synthetic approach to hierarchically structured nanomaterials based on a few readily accessible building blocks. Mixed‐graft block copolymers containing sequence‐defined side chains were prepared through ring‐opening metathesis copolymerization of three or four types of macromonomers. Intramolecularly defined interfaces promoted the formation of ordered hierarchical structures with lattice sizes tunable across multiple length scales. The same set of macromonomers were arranged and combined in different ways, providing access to diverse morphologies in the resultant structures.
Mixed‐graft block copolymers containing sequence‐defined side chains were synthesized from three or four different types of macromonomers. The morphology of hierarchical nanostructures assembled from the prepared graft copolymers was readily diversified by varying the sequence, number, and molar ratio of the side chains.