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A Mortise‐and‐Tenon Joint Inspired Mechanically Interlocked Network
Author(s) -
Zhao Dong,
Zhang Zhaoming,
Zhao Jun,
Liu Kai,
Liu Yuhang,
Li Guangfeng,
Zhang Xinhai,
Bai Ruixue,
Yang Xue,
Yan Xuzhou
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202105620
Subject(s) - mortise and tenon , materials science , toughness , stiffness , composite material , structural engineering , engineering
Mortise‐and‐tenon joints have been widely used for thousands of years in wooden architectures in virtue of their artistic and functional performance. However, imitation of similar structural and mechanical design philosophy to construct mechanically adaptive materials at the molecular level is a challenge. Herein, we report a mortise‐and‐tenon joint inspired mechanically interlocked network (MIN), in which the [2]rotaxane crosslink not only mimics the joint in structure, but also reproduces its function in modifying mechanical properties of the MIN. Benefiting from the hierarchical energy dissipative ability along with the controllable intramolecular movement of the mechanically interlocked crosslink, the resultant MIN simultaneously exhibits notable mechanical adaptivity and structural stability in a single system, as manifested by decent stiffness, strength, toughness, and deformation recovery capacity.