Skin-like mechanoresponsive self-healing ionic elastomer from supramolecular zwitterionic network.

ABSTRACT: Stretchable ionic skins are intriguing in mimicking the versatile sensations of natural skins. However, for their applications in advanced electronics, good elastic recovery, self-healing, and more importantly, skin-like nonlinear mechanoresponse (strain-stiffening) are essential but can be rarely met in one material. Here we demonstrate a robust proton-conductive ionic skin design via introducing an entropy-driven supramolecular zwitterionic reorganizable network to the hydrogen-bonded polycarboxylic acid network. The design allows two dynamic networks with distinct interacting strength to sequentially debond with stretch, and the conflict among elasticity, self-healing, and strain-stiffening can be thus defeated. The representative polyacrylic acid/betaine elastomer exhibits high stretch

SUBMITTER: Zhang W 

PROVIDER: S-EPMC8253733 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature