Liquid metals (LMs) are used as liquid fillers in hydrophilic polymer networks to realize ultra-stretchable hydrogels asymmetric force-sensors. The existence of endows the hydrogel with unique features synthetic methods and sensing applications.

Bacteria are now becoming more resistant to most conventional antibiotics. Methicillin-resistant Staphylococcus aureus (MRSA), a complex of multidrug-resistant Gram-positive bacterial strains, has proven especially problematic in both hospital and community settings by deactivating β-lactam antibiotics, including penicillins, cephalosporins, carbapenems, through various mechanisms, resulting increased mortality rates hospitalization costs. Here we introduce class charged metallopolymers that...

Extensive attention has been received in recent years for perovskite-polymer composites because of their combination properties from polymers and perovskites. In this work, a convenient universal strategy is reported to prepare cesium lead bromide or organolead halide methylammonium polymer composites. This technique integrates the formation perovskite crystals matrix one-pot reaction, avoiding tedious separation preparation The method most commercially available monomers polymers, which...

Abstract Liquid metals (LMs) are receiving growing interest in modern technologies for their various advantages. This work reports using elemental sulfur to achieve nanodispersed liquid bulk polymers multifunctional LM‐based materials. Ring‐opening polymerization and inverse vulcanization of provide many polysulfide loops thiol groups as effective binding ligands that enable extraordinarily uniform dispersion (≈1 µm) matrix improve the mechanical performance Interestingly,...

Fully sustainable poly[HPMC-g-(PMVL-b-PLLA)] graft block copolymer thermoplastics were prepared from hydroxypropyl methylcellulose (HPMC), β-methyl-δ-valerolactone (MVL), and l-lactide (LLA) using a facile two-step sequential addition approach. In these materials, rubbery PMVL functions as bridge between the semirigid HPMC backbone hard PLLA end blocks. This specific arrangement facilitates crystallization, which induces microphase separation physical cross-linking. By changing molar mass or...

Poly(lactide) (PLA), a compostable bioderived polyester, can be produced at cost and scale that makes it an attractive replacement for nondegradable petroleum-derived thermoplastics. However, pristine PLA is brittle unsuitable use in applications where high impact strength ductility are required. In this work we demonstrate poly(l-lactide) (PLLA) the glassy state toughened significantly via addition of amphiphilic diblock polymer. Notably, PLLA blend containing only 5 wt% poly(ethylene...

Metal-polymer composites (MPCs) with combined properties of metals and polymers have achieved much industrial success. However, in MPCs are thought to be ordinary invariable electrically conductive fillers supportive show limited use modern technologies. This work that is disclosed here, for the first time, introduces stimuli-driven transition from biphasic monophasic state liquid metal into polymer science form dynamic soft conductors binary metal-polymer composites. The exhibits...

Abstract The discovery of nanodipolar π ‐conjugated oligomer‐containing polymers as high performance nanodielectric materials with permittivity and low dielectric loss over a wide range frequency (100 Hz–4 MHz) is reported. Terthiophene‐containing methacrylate are synthesized by reversible addition fragmentation transfer (RAFT) polymerization. Both X‐ray thermal studies indicate the formation small crystalline domains terthiophene side chains dispersed in amorphous matrix. highly polarizable...

Graft block polymers are defined by several architectural parameters, including backbone flexibility, graft density, length, side-chain composition, and length. In this work we probe the impacts of each these parameters on phase behavior, rheological properties, mechanical performance materials. Specifically, examine two sets materials prepared from backbones different inherent flexibility. One set was poly[(n-butyl acrylate)-co-(2-hydroxyethyl acrylate)] (BxEy) copolymers; other...

Liquid metal (LM) is used as fillers gradient dispersed in polymer matrix to prepared LM fiber. Such fiber showed distinguished thermally programmable shapes and electrical conductivities.

Abstract Subtle vibrations, such as sound and ambient noises, are common mechanical waves that can transmit energy signals for modern technologies robotics health management devices. However, soft electronics cannot accurately distinguish ultrasmall vibrations owing to their extremely small pressure, complex vibration waveforms, high noise susceptibility. This study successfully recognizes from subtle using a highly flexible anisotropic conductive gel (ACG) based on biphasic liquid metals....

We report a robust synthetic strategy to prepare high molecular weight side-chain cationic cobaltocenium-containing polymers and block copolymers via ring-opening metathesis polymerization. All polymerizations were extremely fast with yields (∼100%) under open air conditions at room temperature followed living controlled manner.

Cobaltocenium-containing methacrylate homopolymer, poly(2-(methacrylolyoxy)ethyl cobaltoceniumcarboxylate hexafluorophosphate) (PMAECoPF6), was prepared by reversible addition–fragmentation chain transfer polymerization (RAFT). Using the homopolymer as a macroinitiator, three different diblock copolymers, including novel heterobimetallic copolymer with ferrocene units second block, were synthesized via extension. Kinetic studies showed that all extension followed controlled/living process...

Abstract This review summarizes recent work on side‐chain metallocene‐containing polymers prepared by controlled and living polymerizations, which include anionic polymerization (LAP), ring‐opening metathesis (ROMP) radical (CRP) such as atom transfer (ATRP), reversible addition fragmentation chain (RAFT), nitroxide‐mediated (NMP). The majority of efforts in the field are focused ferrocene‐containing polymers, while cobaltocenium‐containing have recently started to draw attention. Future...

A facile phase-transfer ion-exchange strategy was used to prepare cationic cobaltocenium-containing polyelectrolytes with different counterions. These cobalt-containing polymers were cobalt-based materials, including cobalt metal, phosphide, monoxide, cobalt–iron hybrids, and ferrite. Block copolymers polymer brushes also nanoparticles nanowires. As a service our authors readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may be...

This paper reports a strategy for controlling surface chemistry of barium titanate (BaTiO3) using surface-initiated reversible addition–fragmentation chain transfer (RAFT) polymerization an oligothiophene monomer. The modular on the engineering nanoparticles provides facile pathway to compatibilizing dielectric nanofillers in matrix polymers, leading formation nanodielectric composites with permittivity at ∼20 and loss <0.02 over wide range frequencies (1 kHz 1 MHz). approach could be...

Abstract Metallopolymers combine a processable, versatile organic polymeric skeleton with functional metals, providing multiple functions and methodologies in materials science. Taking advantage of cationic cobaltocenium as the key building block, organogels could be simply switched to hydrogels via highly efficient ion exchange. With unique ionic complexion ability, moieties provide robust soft substrate for recycling antibiotics from water. The essential polyelectrolyte nature offers...

Mechanically tough and electrically conductive self-healing hydrogels may have broad applications in wearable electronics, health-monitoring systems, smart robotics the following years. Herein, a new design strategy is proposed to synthesize dual physical cross-linked polyethylene glycol/poly(acrylic acid) (PEG/PAA) double network hydrogel, consisting of ferric ion linear chain extensions PEG (2,6-pyridinedicarbonyl moieties incorporated into backbone, PEG-H2 pdca) as first PAA-Fe3+ gel...