Dynamic Bonds: Adaptable Timescales for Responsive Materials.

Autor:	Wanasinghe SV; Department of Chemistry and Biochemistry, Miami University, 651 East High Street, Oxford, OH 45056, USA., Dodo OJ; Department of Chemistry and Biochemistry, Miami University, 651 East High Street, Oxford, OH 45056, USA., Konkolewicz D; Department of Chemistry and Biochemistry, Miami University, 651 East High Street, Oxford, OH 45056, USA.
Jazyk:	angličtina
Zdroj:	Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2022 Dec 12; Vol. 61 (50), pp. e202206938. Date of Electronic Publication: 2022 Nov 02.
DOI:	10.1002/anie.202206938
Abstrakt:	Dynamic bonds introduce unique properties such as self-healing, recyclability, shape memory, and malleability to polymers. Significant efforts have been made to synthesize a variety of dynamic linkers, creating a diverse library of materials. In addition to the development of new dynamic chemistries, fine-tuning of dynamic bonds has emerged as a technique to modulate dynamic properties. This Review highlights approaches for controlling the timescales of dynamic bonds in polymers. Particularly, eight dynamic bonds are considered, including urea/urethanes, boronic esters, Thiol-Michael exchange, Diels-Alder adducts, transesterification, imine bonds, coordination bonds, and hydrogen bonding. This Review emphasizes how structural modifications and external factors have been used as tools to tune the dynamic character of materials. Finally, this Review proposes strategies for tailoring the timescales of dynamic bonds in polymer materials through both kinetic effects and modulating bond thermodynamics. (© 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.)
Databáze:	MEDLINE
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