Small-Molecule-based Supramolecular Plastics Mediated by Liquid-Liquid Phase Separation.
Electrostatic Self-Assembly
Liquid-Liquid Phase Separation
Macrocycles
Supramolecular Materials
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
26 09 2022
26 09 2022
Historique:
received:
29
03
2022
pubmed:
6
8
2022
medline:
23
9
2022
entrez:
5
8
2022
Statut:
ppublish
Résumé
Plastics are one of the most widely used polymeric materials. However, they are often undegradable and non-recyclable due to the very stable covalent bonds of macromolecules, causing environmental pollution and health problems. Here, we report that liquid-liquid phase separation (LLPS) could drive the formation of robust, stable, and sustainable plastics using small molecules. The LLPS process could sequester and concentrate solutes, strengthen the non-covalent association between molecules and produce a bulk material whose property was highly related to the encapsulated water amounts. It was a robust plastic with a remarkable Young's modulus of 139.5 MPa when the water content was low while became adhesive and could instantly self-heal with more absorbed water. Finally, responsiveness enabled the material to be highly recyclable. This work allowed us to understand the LLPS at the molecular level and demonstrated that LLPS is a promising approach to exploring eco-friendly supramolecular plastics that are potential substitutes for conventional polymers.
Identifiants
pubmed: 35929612
doi: 10.1002/anie.202204611
pmc: PMC9804437
doi:
Substances chimiques
Plastics
0
Water
059QF0KO0R
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202204611Informations de copyright
© 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
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