TY  - JOUR
AU  - Zhang, Wei
AU  - Wu, Baohu
AU  - Sun, Shengtong
AU  - Wu, Peiyi
TI  - Skin-like mechanoresponsive self-healing ionic elastomer from supramolecular zwitterionic network
JO  - Nature Communications
VL  - 12
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Nature Publishing Group UK
M1  - FZJ-2021-03876
SP  - 4082
PY  - 2021
AB  - 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 stretchability (1600% elongation), immense strain-stiffening (24-fold modulus enhancement), ~100% self-healing, excellent elasticity (97.9 ± 1.1% recovery ratio, <14% hysteresis), high transparency (99.7 ± 0.1%), moisture-preserving, anti-freezing (elastic at −40 °C), water reprocessibility, as well as easy-to-peel adhesion. The combined advantages make the present ionic elastomer very promising in wearable iontronic sensors for human-machine interfacing
LB  - PUB:(DE-HGF)16
C6  - 34215738
UR  - <Go to ISI:>//WOS:000672163900004
DO  - DOI:10.1038/s41467-021-24382-4
UR  - https://juser.fz-juelich.de/record/901868
ER  -