Biomimetic Supramolecular Polymer Networks Exhibiting both Toughness and Self-Recovery.

Liu, Ji; Tan, Cindy Soo Yun; Yu, Ziyi; Lan, Yang; Abell, Chris; Scherman, Oren A · Adv Mater · 2017

basic_science · Level V

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Abstract

Biomimetic supramolecular dual networks: By mimicking the structure/function model of titin, integration of dynamic cucurbit[8]uril mediated host-guest interactions with a trace amount of covalent cross-linking leads to hierarchical dual networks with intriguing toughness, strength, elasticity, and energy dissipation properties. Dynamic host-guest interactions can be dissociated as sacrificial bonds and their facile reformation results in self-recovery of the dual network structure as well as its mechanical properties.