A stretchable electronic skin (e-skin) requires a durable elastomeric matrix to serve in various conditions. Therefore, excellent and balanced properties such as elasticity, water proof capability, toughness, self-healing are demanded. However, it is very difficult often contradictory optimize them at one time. Here, polyurethane (BS-PU-3) containing polydisperse hard segment, hydrophobic soft dynamic disulfide bond was prepared by one-pot synthesis. Unlike the normal two-pot reaction,...

Abstract Polymeric elastomers play an increasingly important role in the development of stretchable electronics. A highly demanded elastic matrix is preferred to own not only excellent mechanical properties, but also additional features like high toughness and fast self‐healing. Here, a polyurethane (DA‐PU) synthesized with donor acceptor groups alternately distributed along main chain achieve both intra‐chain inter‐chain donor‐acceptor self‐assembly, which endow toughness, self‐healing,...

The self-healing properties and ionic sensing capabilities of the human skin offer inspiring groundwork for designs stretchable iontronic skins. However, from electronic to mechanosensitive skins, simultaneously achieving autonomously superior properties, elasticity, effective control ion dynamics in a homogeneous system is rarely feasible. Here, we report Cl-functionalized pressure sensitive material (CLiPS), designed via introduction groups into polyurethane matrix, which realizes an...

The development of advanced materials capable autonomous self-healing and mechanical stimulus sensing in aquatic environments holds great promise for applications underwater soft electronics, robotics, water-resistant human-machine interfaces. However, achieving superior properties effective simultaneously an environment is rarely feasible. Here, we present ultrafast molecularly engineered piezo-ionic elastomer inspired by the cephalopod's suckers, which possess mechanosensitive ion...

The melt polycondensation of glycolic acid based copolymers with high molecular weights remains a big challenge.

Abstract Ionic skin (I‐Skin) has the advantage of feasible compatibility with biological systems. Nevertheless, developing a stable and durable ionic is challenging. Here, an polyurethane (i‐PU) synthesized, which capable self‐healing able to lock liquids (ILs). In detail, chain extender containing ammonium cationic group followed by polymerization obtain target i‐PU. Through electrostatic interaction diffusion, i‐PU can be fully self‐healed at room temperature within 400 min. Afterward, low...

Artificial synapses inspired by the information processing mechanism of human neural system serve as a platform to develop low-voltage operated high performance bioelectronics and advanced health monitoring systems.

Abstract In the burgeoning field of bioinspired materials, principles governing biological perception and self‐healing drive advancements in biomimetic mechano‐responsive seamlessly integrating ionic signal sensing with self‐healing. While current research often emphasizes individual functionalities, concurrent enhancement both sensitivity iontronic skins is overlooked. Drawing inspiration from transmembrane proteins like TSP‐15, Piezo 1 2, renowned for recruiting repair factors,...

Most biodegradable thermoplastic materials cannot be used as elastomers due to their relatively poor elasticity. Poly(butylene furandicarboxylate-co-ε-caprolactone) (PBFCL) copolyesters were synthesized from 2,5-furandicarboxylic acid (FDCA), 1,4-butanediol, and poly(ε-caprolactone) diols. The PBFCLs are susceptible hydrolysis enzyme degradation, the degradation rate could controlled by enzymes. PBFCL40 PBFCL50 (CL molar content) displayed high tensile strength (≥50 MPa), good elongation at...

<title>Abstract</title> One preferred lead-free ferroelectric, (K,Na)NbO₃ (KNN), is gifted with the prominent features of environmentally benign and excellent piezoelectricity in both its ceramic film forms, but it suffers from poor ferroelectricity. Albeit intensive researches have demonstrated efficiency Mn-doping improving electrical properties KNN, occupancy Mn (A- or B-site) remains elusive. Here, we formed Mn-atomic-layered antiphase boundaries KNN-based films, observed that...

Abstract Relaxor ferroelectric (RFE) films represent promising candidates for high‐performance energy storage applications miniaturized electronic devices and power systems. However, achieving substantial performance always involves complex component or structural design. Herein, we employed a nanocomposite approach to obtain ultrahigh‐efficiency robust density in simple BaTiO 3 ‐based lead‐free films. Our composition of (1‐ x )BaTiO ‐ CeO 2 (0.0 ≤ 0.5) contains only four elements (Ba, Ti,...

Sustainable and fast biodegradable PBCCEs copolyesters have potential applications in green packaging tissue engineering.

<title>Abstract</title> Sensorineural hearing loss is the most common form of deafness, typically resulting from sensory cells on basilar membrane, which cannot regenerate and thus lose sensitivity to sound vibrations. Here, we report a reconfigurable piezo-ionotropic polymer membrane engineered for biomimetic sustainable multi-resonance acoustic sensing, offering exceptional (530 kPa⁻¹) broadband frequency discrimination (20 3300 Hz) while remaining resistant "dying." The sensing capability...

Polylactic acid (PLA) is a biodegradable thermoplastic polyester produced from natural resources. Because of its brittleness, many tougheners have been developed. However, traditional toughening methods cause either the loss modulus and strength or lack degradability. In this work, we synthesized biobased potentially poly(butylene 2,5-furandicarboxylate)-b-poly(ethylene glycol) (PBFEG50) copolymer to toughen PLA, with purpose both keeping mechanical enhancing toughness. The blend containing...

The gradual degradation of polyester in daily use causes unpredictable failure and restricts its reliable applications. realization excellent stability controlled a specific environment is highly appreciated but still remains challengeable. Here, we demonstrate new solution via introducing acetal units into poly(butylene succinate): "locking" the biodegradation copolyesters by rigid spiro diacetal, which could be "unlocked" strong acidic circumstances. In detail, series...

Despite the inherent strain relaxation in perovskite-type oxide ferroelectric films that occurs beyond a certain thickness, interfacial states, including carrier and strain, can still influence their electrical properties. This study explores impact of different (La0.67,Sr0.33)MnO3 (LSMO)-coated substrates on performance (K,Na)NbO3 (KNN)-based films. Specifically, 200 nm-thick epitaxial KNN-based were grown four distinct substrates: (001)-oriented KTaO3, SrTiO3, LaAlO3, YAlO3. Notably,...

Poly (butylene furandicarboxylate) based poly (ether ester), with (ethylene glycol) (PEG) molecular weight from 600 to 20 K g mol−1 and mass fraction of hard segments fixed at 50%, are synthesized through transesterification melt polycondensation. When Mn is less than 1500 mol−1, the copolymers tend be homogeneous. The tendency microphase separation facilitated by increasing (PEG). mechanical properties water swelling influenced (PEG), equilibrium water-uptake PEG crystals. Elastic modulus...

Chiral molecules have the ability to rotate polarization plane of polarized light. Polymers that own a chiral segment are called optically active polymers, and rigid backbone is usually required maintain conformation, which also restricts their application mostly in solution state. Polylactide acid one most important biobased biodegradable its repeating unit could left-handed right-handed conformations. However, utilization optical activity mainly improve mechanical performance by forming...