Advanced Science
·
2026
·
IF 14.1
Jiyun Qi,Xinyi Hui,Xipeng Zhang,Jia-Long Wen,Tong-Qi Yuan
Epoxy resins are indispensable to structural composites, coatings, and adhesives. However, conventional bisphenol A (BPA)-based epoxy resins are limited by toxicity concerns, intrinsic brittleness, poor end-of-life recyclability, and a high carbon footprint. Here, a rigid–flexible bio-based network design is developed by coupling epoxidized soybean oil (ESO), lignin, and malic acid through maleic anhydride bridging, which simultaneously improves component compatibility and introduces dynamic ester linkages for pH-responsive degradation. The resulting thermoset achieved an unusual combination of strength, ductility, and environmental resilience, delivering 22.08 MPa shear strength as a structural adhesive and 31 4.57 MPa tensile strength in glass-fabric composites, together with an ≈250% increase in flexural strain relative to the BPA epoxy. It further maintains robust performance after exposure to chemically aggressive media and extreme temperatures ranging from −196 to 200°C. Life cycle assessment (LCA) and techno-economic analysis (TEA) confirmed its environmental friendliness and competitive cost‑effectiveness. This work demonstrates a sustainable design for high‑performance thermoset, offering a viable sustainable alternative for applications such as structural adhesives and wind‑turbine composites, thereby accelerating the transition toward a circular bio‑economy.
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Nature Communications
·
2026
·
IF 18.1
Zhai Yanjie,Gong Shanhe,Zuo Yunpeng,Sun Libo,Li Weisong,Yang Yile,Xia Qing,Cui Lele,Zhou Yingying,Wu Jie,Zhang Xiao,Wang Xin
Electrochemical hydrogenation of biomass-derived substrates offers a sustainable route to valuable chemicals, yet conventional systems often struggle to simultaneously achieve high efficiency and high product purity. Here we report an electrochemical process based on a porous solid-electrolyte reactor that integrates efficient hydrogenation with intrinsic purification for biomass-derived substrates, thereby eliminating the need for supporting electrolytes. The system promotes the hydrogenation of maleic acid solution (a model unsaturated biomass substrate) into succinic acid (a model saturated biomass substrate), via a cation shielding effect while suppressing competing reactions such as hydrogen evolution. By continuously recycling the generated sodium succinate from the cathode to the middle layer, the reactor further converts it into pure succinic acid, establishing a closed-loop alkali-metal-cation shuttle that enhances selectivity and minimizes side reactions. This system delivers succinic acid Faradaic efficiencies ~ 85%, long-term operational stability (over 500 hours), and a final solution of > 98% purity, without downstream electrolyte recovery. These results highlight a scalable pathway toward cleaner, more efficient electrochemical upgrading of biomass.
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ACS Applied Polymer Materials
·
2026
·Vol. 8
·期 15
·13378-13387
·
IF 5.2
Chen Hao,Yang Jiaming,Yang Xu,Fu Zhe,Zhao Xindong,Wang Xuan,Zhao Hong,Wang Meng,Jiang Yanfeng,Zhao Xinglong
Polypropylene (PP) is an important candidate for next
generation
environmentally friendly high-voltage direct current (HVDC) cable
insulation materials. However, its insufficient toughness often require
modification through blending with polyolefins such as polyethylene
(PE). The poor compatibility between PP and PE tends to form unstable
phase interfaces, thereby weakening the mechanical, thermomechanical,
and dielectric properties. To address the poor compatibility and the
deterioration of high-temperature electrical properties in multiphase
PP insulation materials, this study proposes an interfacial modification
strategy based on dynamic covalent bonds, in situ constructing a dynamic
cross-linking network within maleic anhydride-grafted PP and PE blends.
Microstructural characterizations reveal that this network overcomes
the compatibility barrier of the multiphase system, achieving highly
stable interfaces and optimized crystal structures. Direct current
electrical tests indicate that, under the confinement and regulation
of the dynamic network, the high-temperature electrical properties
of the material are significantly enhanced. Notably, at 70 ° C,
the injection and accumulation of space charge are effectively suppressed,
and an extremely low conduction current is maintained. This research
not only achieves the synergistic enhancement of the mechanical, thermomechanical,
and electrical properties of multiphase polyolefins, but also provides
crucial theoretical and practical support for the development of high-performance,
recyclable insulation materials that meet the demands of next-generation
HVDC transmission.
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ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 30
·13503-13516
·
IF 7.6
Xu Jingjing,Yu Jia,Wang Hong,Zhang Zhikun,Wang Yuxing,Lai Chenhuan,Xu Ben Bin,Xie Yitong,Zhang Daihui,Chu Fuxiang
Lignin-containing cellulose nanofibers (LCNFs) offer a sustainable alternative to fully delignified nanocellulose by preserving native lignin while reducing chemical and energy consumption. Herein, bamboo-derived LCNFs were prepared through a one-step maleic anhydride esterification without toxic solvents or catalysts. The resulting LCNFs exhibit high lignin content (27.14%), abundant surface carboxyl groups (1.85 mmol g −1 ), ultrafine diameters (∼2.67 nm), and high aspect ratios (>1 μm), enabling excellent dispersion and strong interfacial interactions with polymer networks. When incorporated into poly(acrylamide-co-lauryl methacrylate) hydrogels, the LCNFs function as dual-functional crosslinkers by simultaneously providing covalent anchoring sites and physical entanglement points. The synergistic interactions significantly enhance the mechanical robustness and electrical performance of the hydrogels, yielding a tensile strength of 1.12 MPa, elongation at break of 1545%, toughness of 7.33 MJ·m −3 , and electrical conductivity of 1.15 S/m. Multiscale analyses reveal that the reinforcement originates from cooperative hydrogen bonding, covalent coupling, and nanoscale network interpenetration induced by LCNFs. This work demonstrates a green and efficient strategy for converting bamboo biomass into functional LCNFs and highlights their potential as sustainable reinforcing and crosslinking components in high-performance conductive hydrogels for flexible sensing and wearable applications.
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POLYMER
·
2026
·
IF 5.1
Tingxiao Yang,Ying Qi,Qingsong Wang,Kening Ma,Shaojian Lin,Jianwu Lan,Jiaojiao Shang
Transparent polymer films are widely used in optical devices, packaging, and information display, but most of them are derived from non-renewable petrochemical resources and show limited environmental sustainability. Cellulose represents an attractive natural polymer alternative owing to its high abundance and biodegradability. However, its pronounced hydrophilicity and limited functional integration restrict the development of advanced transparent cellulose-based films. In this work, highly transparent, water-resistant, and fluorescent cellulose-based films were fabricated from bleached forestry pulp through sequential carboxymethylation, periodate oxidation, silane coupling, diamine-assisted crosslinking, and post-functional fluorophore grafting. Carboxymethylation enabled the formation of transparent films, while silane modification and network construction significantly improved the surface hydrophobicity and water durability of the cellulose matrix. Subsequent immobilization of N-(1-pyrene)maleimide endowed the films with distinct fluorescence. The resulting films maintained high optical transparency after multistep functionalization, with a transmittance of about 90% in the visible region, exhibited a water contact angle of 101.6°, and a tensile strength of about 70 MPa. In addition, the fluorescent films showed clear optical responses under UV irradiation. This work provides an effective strategy for constructing a transparent cellulose-based platform that simultaneously integrates hydrophobicity, fluorescence functionality, and mechanical reinforcement through sequential covalent modification, and highlights their potential in optical labeling, smart packaging, flexible substrates, and security marking.
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EUROPEAN POLYMER JOURNAL
·
2026
·
IF 6.8
Xiangxing Zeng,Zetong Ma,Zhiyong Zhen,Jing Li,Wanyi Tan,Rui Chen,Zhongke Yuan,Shaolin Lu,Yuzhao Yang,Cheng Wang,Xudong Chen
The advancement of high-frequency integrated circuits urgently demands dielectric materials with both low dielectric constant ( D k ) and dielectric loss (tan δ), as well as environmental compliance through fluorine-free formulation. Bismaleimide (BMI) resins, qualified as low-dielectric polymer candidates, are limited by pronounced dipolar polarization by the highly polar imide groups (–N–C=O) and the narrow processing windows. The rational design of BMI monomer and composite formulations appears to be of urgency. Herein, we propose a low dielectric bismaleimide triazine (BT) resin based on a novel fluorine-free BMI monomer constituted of a bulky 4,4′-cyclohexylidenebisphenoxyl moiety with N -phenylmaleimide termini, named P(ZMI). The system displays an elucidated curing mechanism and quantifiable kinetic parameters, with a favorable curing profile at low temperature and a broad processing window. Remarkably, P(ZMI) achieved excellent dielectric performance with a D k of 2.84 and a breakthrough ultra-low tan δ of down to 0.0007 at 10 GHz. The ultra-low dielectric loss is achieved by suppressing polarization relaxation and defect-induced dissipation through uniform charge distribution and optimized multiphase compatibility, leading to the dual minimization of intrinsic and extrinsic loss components. This work establishes a synergistic design paradigm that concurrently delivers superior dielectric properties, environmental friendliness, and excellent processability for high-frequency substrates.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Junwei Li,Yajing Liu,Kai Zhang,Yan Zhou,Wei Feng,Yanjun Liu,Yongke Zhao
To address the dual challenges of waste polyethylene (WPE) recycling and the demand for road asphalt modifiers, asphalt was modified by constructing covalent crosslinking networks within the WPE, thereby enhancing its high-temperature performance. A covalently crosslinked polyethylene waste plastic (CP) was synthesized via chemical modification of WPE. The structural characteristics and mechanical performance of CP were characterized by Fourier Transform Infrared spectroscopy (FTIR), proton nuclear magnetic resonance, gel content determination, and tensile test. The interaction mechanism between CP and asphalt components was analyzed by using fluorescence microscopy and FTIR. The basic performances of modified asphalt were evaluated based on the penetration, ductility, softening point, and Brinell rotational viscosity tests. The high-temperature rheological performance was evaluated through a dynamic shear rheometer and multiple stress creep recovery. Results showed that the CP demonstrated superior mechanical properties relative to pristine WPE. The high-temperature rheological performance of CP-modified asphalt was significantly improved, peaking at a 5 wt% CP dosage. This improvement was attributed to the formation of a covalent cross-linked network, in which ester bonds served as the covalent cross-linking sites. This strategy achieves a synergistic improvement in asphalt performance and plastic reutilization, contributing to sustainable and low-carbon goals.
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ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.3
Kexin Zhou,Zihan Zhang,Junqi Gao,Bingqiang Pan,Kexia Jin,Yuxuan Xia,Da Zhang,Hongkun Wang,Yang Zhu,Wen-Jun Wang,Xuan Yang
The transition toward sustainable plastics calls for biodegradable polymers with enhanced performance and scalable processing routes. Plant-derived nanofibers are promising reinforcements, yet their adoption is hindered by energy-intensive isolation, incompatibility with hydrophobic matrices, and aggregation during drying. Here, we report a dual-function reactive extrusion strategy that combines nanofibrillation and surface modification in a single step. Lignocellulosic fibers are prefunctionalized with maleic anhydride to introduce carboxyl groups while retaining native lignin, and in-situ transesterification during melt compounding generates well-dispersed cellulose nanofibrils covalently bonded to PBAT. This integrated approach removes the need for costly nanocellulose isolation and drying while simultaneously ensuring compatibility and mechanical integrity through both chemical bonding and the hydrophobic contribution of lignin. The resulting composite films exhibit a 30% increase in stiffness while maintaining superior tensile strength and strain at failure, along with a 42% and 56% reduction in water vapor and oxygen permeability, respectively, compared to neat polymers. Additionally, the preserved lignin imparts over 90% antibacterial activity, enabling improved fruit preservation, while many film trials confirmed effective soil moisture retention and good biodegradability. Overall, this work establishes a scalable, industry-ready route to transform raw biomass into multifunctional nanofillers, providing a green pathway toward high-performance composite films for packaging and agricultural applications.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·
IF 6.2
Mingjia Feng,Yunhai Ma,Yuqi Zhuansun
Biomimetic design combined with multifunctional biodegradable materials provides a sustainable solution to improve mechanical strength, water resistance, and UV protection of biodegradable mulch. A concave lotus-leaf template was used to replicate micro/nanostructures on a poly(vinyl alcohol)/sodium lignosulfonate/cellulose nanocrystal/urea matrix. The film was then coated with carnauba wax, producing a superhydrophobic surface with a contact angle of 138.7°. The swelling ratio decreased by 48.76%, and the water–vapor transmission rate was markedly reduced, indicating a strong barrier performance. It also showed high mechanical strength (51.43 MPa) and an ultraviolet shielding efficiency of about 99%. Seed germination and growth tests demonstrated a sustained urea release. They also showed effective moderation of the soil temperature and moisture. Pakchoi germination reached 84%, and the overall plant quality improved significantly. The film degraded by 69.26% within 60 days. Overall, this biomimetic biodegradable mulch combines high performance with environmental compatibility for sustainable agriculture.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Yuqi Ma,Jialiang Li,Shiyuan Liu,Jianbin Qin,Yongsheng Zhao,Guangcheng Zhang
The development of high-performance recyclable polyolefin elastomer foams remains a challenge due to the inherent trade-off between melt strength and foamability. In this work, a zinc-catalyzed transesterification network was constructed in olefin block copolymer (OBC) elastomer through reactive melt-grafting of maleic anhydride (MAH) and subsequent cross-linking with epoxidized soybean oil (ESO), and the supercritical carbon dioxide (scCO2) foaming technology was successfully implemented to prepare sustainable vitrimer foams due to the improved melt strength. The resultant OBC vitrimer shows a stable dynamic-covalent-bonded network with high cross-linking density (gel content of ∼80%). As estimated by Arrhenius-type stress relaxation behavior, the OBC-V elastomer has a delayed dynamic feature with Ea ranging from 101.4 to 127.2 kJ/mol, which is favorable for its improved thermomechanical properties and broadened service temperature up to 120 °C. Interestingly, this vitrimer design presents a unique combination of enhanced melt strength for foam stabilization and active stress relaxation for eliminating local stress concentration during cell growth. Consequently, the OBC-V foams exhibited uniform and finely tuned microcellular structures (∼20 μm) under scCO2 foaming in comparison with the unstable foaming behaviors in both pure OBC and chemically cross-linked OBC samples. Additionally, the OBC-V foams show a high specific strength of 2.7 MPa/(g/cm3), good recyclability, and refoamability. This work provides a promising technique route through vitrimer chemistry toward sustainable and elastomeric polyolefin foams with lightweight and excellent mechanical performance.
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LANGMUIR
·
2026
·
IF 4.4
Yong Wang,Chunxiao Yan,Weiye Liang,Qiang Zhang,Gang Cheng,Jicheng Dong,Lin Jin,Huan Tang,Fang Cheng,Lijun Zhang
Orthokeratology (OK) lenses for myopia correction are susceptible to biofouling by tear-derived biomolecules, escalating the risks of ocular infection and inflammation. Prevailing studies that rely on end point protein quantification fail to capture the real-time kinetics of fouling formation. Here, we fabricated a UV pressure-assisted polymer-grafted quartz crystal microbalance with dissipation monitoring (QCM-D) sensor exhibiting exceptional stability, nanoscale smoothness (RMS roughness ≈2 nm), and interfacial peel resistance. This platform enables in situ tracking of adsorption/desorption kinetics for four critical tear components: native/denatured lysozyme and oxidized/native lecithin. Key findings reveal a flow-dependent fouling behavior, wherein low flow rates increase biomolecule adsorption by 37–80% compared with higher flows. We further identify denatured lysozyme and native lecithin as resilient contaminants characterized by a stronger deposition affinity and pronounced resistance to elution. Quantitative screening of multipurpose solutions (MPSs) demonstrates that MPS #2 achieves 20–100% elution rate across biomolecules, outperforming commercial benchmarks. By leveraging dissipation–frequency (D–F) analysis, we clarify the fundamental mechanisms of biofouling formation at the molecular level. Collectively, this work establishes three critical advances: (1) a real-time biofouling diagnostic platform for OK lens interfaces, (2) molecular design principles for antifouling materials based on adhesion remodeling theory, and (3) an accelerated MPS formulation screening paradigm for ocular device safety.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Han Jia,Zhe Wang,Yihan Huang,Fujun Lu,Debin Hou,Ziwei Wei,Songling Yuan,Qiang Wang,Pan Huang,Long Xu
Recently, the silicon quantum dots (SiQDs) were widely utilized in enhanced oil recovery (EOR) due to their ultrasmall size, high specific surface area and excellent dispersion stability. Herein, the amphiphilic pH responsive silicon quantum dots (AR-SiQDs) were synthesized via the mild method to stabilize smart Pickering emulsion. Both the carboxyl and cinnamyl aldehyde were successfully grafted on the AR-SiQDs surface as hydrophilic and hydrophobic responsive groups, respectively. The structure of AR-SiQDs was characterized by Fourier transform infrared spectrometer and X-ray photoelectron spectroscopy, and the response mechanism was demonstrated via the zeta potential and interfacial tension (IFT) analyses. The results revealed that the diffusion and adsorption behaviors of AR-SiQDs relied on the protonation/deprotonation of carboxyl and reversible dynamic covalent bonding of imines. Specifically, the AR-SiQDs reduced the oil/water IFT from 51.00 mN/m to 7.58 mN/m at pH of 10.09, whereas the IFT only decreased to 24.12 mN/m at pH of 4.26. The AR-SiQDs effectively emulsified oil at alkaline condition, while the demulsification was rapidly achieved in 30 min upon the addition of hydrochloric acid. The emulsion exhibited excellent recyclability to maintain small average droplets size (from 1.42 μm to 2.12 μm) after five emulsification/ demulsification cycles. The core flooding experiments indicated that the AR-SiQDs stabilized emulsion evidently enhanced oil recovery by 14.65% at pH of 10.09, highlighting the remarkable synergistic effect with alkali. The work provided the novel strategy for designing smart SiQDs and recyclable emulsions for EOR.
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危险品化学品经营许可证（带存储）