Formation of 2D and 3D multi-tori mesostructures via crystallization-driven self-assembly.
Journal
Science advances
ISSN: 2375-2548
Titre abrégé: Sci Adv
Pays: United States
ID NLM: 101653440
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
received:
03
10
2019
accepted:
22
01
2020
entrez:
5
6
2020
pubmed:
5
6
2020
medline:
5
6
2020
Statut:
epublish
Résumé
The fabrication of three-dimensional (3D) objects by polymer self-assembly in solution is extremely challenging. Here, multi-tori mesostructures were obtained from the crystallization-driven self-assembly of a coil-crystalline block copolymer (BCP) in mixed solvents. The formation of these structures follows a multistep process. First, the BCP self-assembles into amorphous micrometer-large vesicles. Then, the BCP confined in these mesosized vesicles crystallizes. This second step leads to the formation of objects with shapes ranging from closed 3D multi-tori spherical shells to 2D toroid mesh monolayers, depending on the solvent mixture composition. This approach demonstrates how topological constraints induced by the specific interactions between coil-crystalline BCP and solvents can be used to prepare mesostructures of complex morphologies.
Identifiants
pubmed: 32494620
doi: 10.1126/sciadv.aaz7301
pii: aaz7301
pmc: PMC7159922
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
eaaz7301Informations de copyright
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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