Self‐Healing Materials: Superior Toughness and Fast Self‐Healing at Room Temperature Engineered by Transparent Elastomers (Adv. Mater. 1/2018)

In article number 1705145, Sung Yeon Hwang, Dongyeop X. Oh, Jeyoung Park, and co‐workers fabricate remarkably tough and room‐temperature self‐healable thermoplastic polyurethane elastomers. Hard segments with an asymmetric alicyclic structure provide the optimal metathesis efficiency for the embedded aromatic disulfide while preserving the remarkable mechanical properties. The toughness value of 26.9 MJ m−3 is twice the best value for a previously reported material.