Abstract The preparation of biodegradable polymeric materials with both great strength and toughness remains a huge challenge. natural spider silk exhibits combined super high tensile fracture (150–190 J g −1 ), attributing to the hierarchically assembled nanophase separation densely organized sacrificial hydrogen bonds confined in nanoscale granules. Herein, inspired by silk, facile strategy is reported for nanostructured biomimetic material incorporating biomass‐derived lignosulfonic acid...

High-performance lignin-containing polyurethane elastomers (LPUes) were successfully synthesized via partially substituting petroleum-derived polyols with depolymerized enzymatic hydrolysis lignin (DEL). The influences of DEL on the structure, thermostability, mechanical performance, and thermal reprocessability LPUes systematically studied. tensile strength toughness PUes significantly enhanced after introduction DEL, maximum reaching up to 60.7 MPa 263.6 MJ/m3. enhancement for was...

Lignin was demonstrated to have excellent photothermal performance for smart applications in photo-controlled shape memory, self-healing, mechanical/electrical conversion, antibacterial materials, etc .

Abstract Artificial muscle materials promise incredible applications in actuators, robotics and medical apparatus, yet the ability to mimic full characteristics of skeletal muscles into synthetic remains a huge challenge. Herein, inspired by dynamic sacrificial bonds biomaterials self-strengthening physical exercise, high performance artificial material is prepared rearrangement coordination polyolefin elastomer via repetitive mechanical training process. Biomass lignin incorporated as green...

The photothermal effect of lignin was significantly enhanced by introducing electron-withdrawing group attributing to the improved light absorption electron donor-acceptor structure and non-radiative decay through molecular motion.

Abstract The exploitation of bio‐based materials derived from renewable resources represents a pivotal strategic approach in addressing environmental pollution and alleviating the scarcity fossil resources. 2,5‐Furandicarboxylic acid (FDCA) is most potential substitute for terephthalic acid. Lignin abundant aromatic biomass resource. However, preparation high‐performance lignin/FDCA‐based bio‐polyesters remains formidable challenge. Herein, multifunctional lignin‐modified polyester elastomer...

Inspired by the hard-shelled pangolins, a bionic hydrogel structure with hard nano silver armor and soft interior was fabricated outstanding tensile strength toughness, excellent electrical conductivity good antibacterial properties.

Highly resilient lignin-containing polyurethane (PU) foam was synthesized via using alkali lignin as a partial substitute for the petrochemical polyols. The flexible polyethylene glycol chains were first grafted onto lignin, converting phenolic hydroxyls on to aliphatic and enhancing reaction activity of lignin. influence modified-lignin structure, mechanical properties thermal stability PU foams analyzed. provided flexibility foams. All exhibited large elastic recovery higher than 93%....

In this work, lignin/zinc oxide nanocomposites with excellent UV-absorbent performance were prepared through a novel hydrothermal method using industrial alkali lignin (AL) as raw materials. AL was first modified by quaternization to synthesize quaternized (QAL). The QAL/ZnO different contents then via facile one-step QAL and zinc nitrate hexahydrate hexamethylenetetramine in aqueous solution. nanocomposite possessed an average diameter of ∼100 nm showed synergistic performance. particle...

In this work, lignin-decorated ZnO composite was prepared via an in situ synthesis method using industrial alkali lignin (AL). First, the AL modified by quaternization to prepare quaternized (QAL). The microstructure and optical properties of QAL/ZnO were characterized scanning electron microscopy (SEM), transmission (TEM), X-ray diffraction (XRD), UV–vis photoluminescence (PL) spectroscopy. These results showed that possessed a flowerlike structure excellent synergistic UV-absorbent...

This work reports the first pure hydrocarbon thermoplastic polyolefin material with reversible shape memory effect under stress-free or very small external loading condition. A ethylene/1-octene diblock copolymer designed chain microstructure was synthesized. The performed not only conventional one-way multishape effects, but also a two-way (RSME). elongation and contraction induced by oriented crystallization heating confirmed as mechanism of RSME without chemical cross-linking....

This work reports the reversible shape memory polymer (RSMP) by semicrystalline poly(ethylene-co-vinyl acetate) (PEVA) with dynamic covalent networks. The ester linkages in cross-linked PEVA acted as bonds presence of a transesterification catalyst. network imparted material good thermal plasticity non-flow state at high temperature. resulting possessed both effect (RSME) and thermadapt property. performance gave little adverse on RSME. provides an approach to improve...

For the first time, coordination-based energy sacrificial bonds have been constructed in interface between lignin and polyolefin elastomer for preparing a new class of high performance thermoplastic elastomers (TPEs) with biomass as hard plastic phase. The coordination not only promoted dispersion lignin, but also improved interfacial interactions matrix, facilitated orientation chain segments during stretching. synergistic effect higher dissipation, leading to simultaneously enhanced...

Abstract Reusable, self‐healable, removable, and strong bio‐based polyurea adhesives were successfully synthesized via partially substituting polyetheramine with polyetheramine‐grafted lignin introducing a chain extender containing dynamic disulfide bonds. The endowed the significantly enhanced adhesion strength on either metal or wood substrates by intensive hydrogen bonding interactions; bonds played key role in excellent self‐healing reusable performance. thermostability of was also...

Pristine lignin could completely prevent fire from destroying PU foam through growing protective thermal char, dilution of oxygen and radical scavenging.

Abstract Lignin colloidal spheres (LCSs) are promising biomaterials for application in drug storage and delivery, pollutant adsorption, ultraviolet protection due to their biocompatibility, amphiphilicity, conjugated structure. However, wide size distribution of LCSs greatly limits performances, especially many precise advanced applications. Herein, the fabrication monodispersed with tailorable sizes ranging from nanoscale microscale is reported. raw materials first fractionated by solvent...

In this work, tough and fast light-controlled healable lignin-containing polyurethane elastomers (LPUes) with a dynamic dual-crosslinking network were successfully synthesized. The consisted of noncovalent bonds (hydrogen Zn2+-based coordination bonds) carbamate bonds, which endowed LPUes excellent mechanical properties (31.4 MPa, 1528%), reprocessability, healing properties. After 4 times reprocessing, the retention ratios tensile strength elongation at break for maintained above 85 95%,...

Due to the growing sustainability and health requirements, structural color materials fabricated with functional natural polymers have attracted increasing attention in advanced optical biomedical fields. Lignin has many attractive features such as great biocompatibility, ultraviolet resistance, antioxidant property, thermostability, making it a promising resource be materials. However, date, utilization of lignin building block for is still challenge due its disordered structure. Herein, we...

The use of lignin as feedstock to prepare lignin-containing waterborne polyurethane (LWPU) is great significance for the sustainable development low carbon materials. However, utilization method and function in LWPU need be further explored developed. In this study, homogeneous stable emulsions were prepared with low-molecular-weight lignin. Then, strong tough LWPU/lignin nanocomposites by blending dialyzed alkali (DAL) nanomicelles emulsions. well-dispersed DAL nanoparticles formed multiple...

Aerogels with low density, high mechanical strength, and excellent elasticity have a wide potential for applications in wastewater treatment, thermal management, sensors. However, the fabrication of such aerogels from biomass materials required complex preparation processes. Herein, sustainable facile strategy was reported to construct lignin/cellulose (LCMA) three-dimensional interconnected structures by introducing homologous lignin polyphenyl propane structure as structural enhancer...