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This content will become publicly available on June 21, 2023

Title: Interpenetrated triple network polymers: synergies of three different dynamic bonds
An ongoing challenge in soft materials is to develop networks with high mechanical robustness while showing complete self-healing and stress relaxation. In this study we develop triple network (TN) materials with three different polymers with distinct dynamic linkers (Diels–Alder, boronic acid-ester and hydrogen bonding). TN materials exhibit significant improvement of strength, stability and excellent self-healing properties simultaneously compared to their analogous double networks (DNs). All the TNs (TN-FMA 5%, 7% and 9%) show higher tensile strength over all DNs. In addition, TN-FMA (9%) demonstrates an excellent fracture energy over 20 000 J m −2 , 750% elongation and fast stress relaxation. This highlights how dynamic bonding multiplicity and network structure can play a major role in improving the quality of dynamic materials.
Authors:
; ;
Award ID(s):
1749730 1919850
Publication Date:
NSF-PAR ID:
10354959
Journal Name:
Polymer Chemistry
Volume:
13
Issue:
24
Page Range or eLocation-ID:
3705 to 3712
ISSN:
1759-9954
Sponsoring Org:
National Science Foundation
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