2024
DOI: 10.1002/adma.202405105
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Chain Friction and Lubrication Balanced Ultra‐Tough Polyacrylates With Wide‐Span Switchable Stiffness for Strain‐Programmable Deformation

Guojun Zheng,
Wenjie Xiong,
Yiting Xu
et al.

Abstract: Natural mollusks perform complex mechanical actions through reversible large‐strain deformation and stiffness switching, which are challenging to achieve simultaneously in synthetic materials. Herein, it is shown that a set of polyacrylates designed according to a chain friction and lubrication balanced strategy shows ultra‐stretchability (λ up to 324), high resilience (near 100% recovery at strain ≥ 100), and wide‐span stiffness switching (up to 2073 times). The typical emulsion polymerization method and cast… Show more

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