Silver/polymer composites have attracted significant interest in the field of electromagnetic interference shielding. This review prospects current progress, state-of-the-art, and future development silver/polymer composites.

Multifunctional polymer composites with anisotropic properties are attracting interest as they fulfil the growing demand of multitasking materials. In this work, have been fabricated by combining layer-by-layer (LBL) filtration method alternative assembling carbon nanotubes (CNTs) and hexagonal boron nitride flakes (hBN) on natural rubber latex particles (NR). The layered exhibit thermal electrical conductivities, which tailored through layer formulations. best composite consists four layers...

Interdigitated and square laser-induced graphene (LIG) electrodes were successfully fabricated by direct laser writing of common natural cork bottle stoppers. The graphitization process was performed with a low-cost hobbyist visible in simple, fast, one-step under ambient conditions. formation LIG material revealed extensive characterization using Raman, attenuated total reflection-Fourier transform infrared (ATR-FTIR), X-ray photoelectron (XPS) spectroscopies. Electron microscopy...

Intelligent composite materials and devices are attracting a great interest owing to their potential impact on various future life applications. To meet the growing demand for multifunctional materials, development validation of visible sensing behavior is highly desirable, but single wearable material still remains challenge be achieved. reach this goal, here we present intelligent fabric with piezoresistivity mechanoluminescence ability based layer-structured graphene-based conductive...

Abstract Ion conductive hydrogels are relevant components in wearable, biocompatible, and biodegradable electronics. Polyvinyl‐alcohol (PVA) homopolymer is often the favored choice for integration into supercapacitors energy harvesters as sustainable triboelectric nanogenerators (TENGs). However, to further improve hydrogel‐based TENGs, a deeper understanding of impact their composition structure on devices performance necessary. Here, it shown how ionic based an amorphous‐PVA (a‐PVA) allow...

Nowadays, the chemical industry is looking for sustainable chemicals to synthesize nanocomposite bio-based polyurethane foams, PUs, with aim replace conventional petrochemical precursors. Some possibilities increase environmental sustainability in synthesis of PUs include use and additives derived from renewable sources (such as vegetable oils or biomass wastes), which comprise increasingly wider base raw materials. Generally, exhibit chemico-physical, mechanical functional properties, are...

Abstract Cork laser induced graphene (cork‐LIG) electrochemical sensors are fabricated by direct writing of natural cork sheets. Laser is performed with a hobbyist visible laser. The obtained cork‐LIG structures display graphene‐like Raman signatures, high conductivity, and fast electron‐transfer rates. After 10 min pretreatment, electrodes used for detection Tyrosine (Tyr) in the presence uric acid, dopamine, ascorbic urea, glucose. linear tyrosine achieved 5–150 µm range limit (LOD) 3.03...

Abstract Laser‐fabrication of graphene from cellulose‐based feedstock materials often requires extensive preprocessing. This work demonstrates laser fabrication porous, 3D a new class marine‐based sustainable materials–chitosan biopolymers. The biopolymer films contain only chitosan, acetic acid, glycerol, and water. Fourier transform infrared spectroscopy studies indicate that the cured chitosan still retain significant water content (≈30%), enabling production flexible films. A simple...

Isotactic polypropylene–polyethylene block copolymers prepared with living and stereoselective catalyst allow linking incompatible crystalline polymers giving a lamellar morphology defined by competition between phase separation crystallization.

We set up a facile approach for fabrication of supports with tailored nanoporosity immobilization enzymes. To this aim block copolymers (BCPs) self-assembly has been used to prepare nanostructured thin films well-defined architecture containing pores tailorable size delimited by walls degree hydrophilicity. In particular, we employed mixture polystyrene-block-poly(l-lactide) (PS-PLLA) and polystyrene-block-poly(ethylene oxide) (PS-PEO) diblock generate lamellar morphology consisting PS...

In this study, the laser-induced graphitization process of sustainable chitosan-based formulations was investigated. particular, optimal lasing conditions were investigated alongside effect borax concentration in chitosan matrix. all cases, it found that obtained graphitizable with a CO2 laser. This gave rise to formation high surface area, porous, and electrically conductive graphene (LIG) structures. It borax, as cross-linker chitosan, enabled when its content ≥30 wt % matrix, allowing an...

π-Conjugated ionic liquid crystals are a very interesting class of salts where the coupling and electronic functions with anisotropy typical may give rise to materials advanced bulk properties. Defect-free active thin films obtainable by simple mesophase self-assembly these be exploited in number different electro-optical devices. Here we show that rich mesomorphism thienoviologen 4,4′-(2,2′-bithiophene-5,5′-diyl)bis(1-alkylpyridinium), which includes smectic, columnar, nematic phases,...

Chitosan-based hybrid nanocomposites, containing cellulose nanocrystals (CNCs), graphene oxide (GO), and borate as crosslinking agents, were successfully prepared by solution-casting technique. The synergistic effect of the two fillers, role cross-linker, in enhancing structural functional properties chitosan polymer, was investigated. XPS results confirm chemical interaction between ions hydroxyl groups chitosan, GO, CNCs. morphological characterization shows that GO sheets are oriented...

Abstract This work aims to produce poly(ethylene terephthalate)/multilayer graphene oxide (mGO) nanocomposites via continuous melt mixing in twin‐screw extrusion, and study the changes crystallization flow behavior. Three mGO contents (0.05, 0.1, 0.3 wt%) were used. Differential scanning calorimetry analyses showed that at 0.1 wt%, acted best as nucleating agent, increasing kinetics well temperature (T mc ) by more than 20%. It was also observed increases crystals perfection. The behavior...

Abstract The class of imidazolium salts contains effective anticorrosion additives for metal substrates. This study evaluated the potential 1-carboxymethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide ( HO 2 CC 1 MImNTf ) application in cultural heritage, exploring it as additive chitosan-based coatings protection copper-based alloys. Under accelerated corrosion conditions with HCl vapor, chitosan coating was less than one benzotriazole. a combination and benzotriazole resulted...

Cellulose Nanocrystals, CNC, opportunely functionalized are proposed as reactive fillers in bio-based flexible polyurethane foams to improve, mainly, their mechanical properties. To overcome the cellulose hydrophilicity, CNC was on its surface by linking covalently a suitable polyol obtain grafted-CNC. The polyols grafted with will react isocyanate preparation of foams. An attractive way introduce functionalities surfaces aqueous media is silane chemistry using functional trialkoxy silanes,...

Abstract In this study polyester‐based thermoplastic polyurethane (TPU) samples were annealed at 110°C for 0, 8, 16, and 24 h. To elucidate the relationship between hard soft phase separation shape memory properties, characterized within a rheometer, by selecting well defined thermal cycles. The results showed an enhancement of recovery ratio ( R r ~ 65%) all samples, when compared to non‐annealed TPU 60%). This behavior was attributed modifications hard‐soft domain morphology occurring...

Abstract Conductive hydrogels exhibit significant potential for flexible electronics owing to their exceptional flexibility, resistance deformation, and high conductivity. However, there is a critical need develop that can withstand extremely low temperatures while exhibiting good mechanical properties. In this study, carboxyl‐modified polyvinyl alcohol (PVA) as the gel matrix, dimethylsulfoxide water mixed solvent solution, graphene oxide (GO) assembled polypyrrole (PPy) nanowires are used...