POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 4
·e70596
·
IF 3.8
Yinchao Xu,Xinyi Luo,Mai Zhang,Zuting Li,Xiangkun Guo
Solar-driven interfacial evaporation has emerged as a transformative technology for sustainable seawater desalination. While significant advancements have been made in enhancing evaporation rates through material selection and architectural optimization, mitigating parasitic heat loss remains a critical technical bottleneck. In this work, we present a hierarchically structured, self-floating multilayer evaporator utilizing carbon fiber paper (CP) functionalized with polyaniline (PAN) and carbon black (CB) as the photothermal layer. The designed architecture leverages a delignified wood (DW) block as an efficient hydrophilic water-pumping scaffold, coupled with a modified hydrophobic carbon paper (CP@PAN-CB) to effectively localize heat and suppress downward conduction to the bulk water. Systematic investigation reveals that the sequential doping of PAN followed by CB creates a synergistically high-dispersion interface that bolsters light-harvesting efficiency. Under one-sun irradiation (1 kW m −2 ), the evaporator attains a stable surface temperature of approximately 65°C within 60 s and achieves a peak evaporation rate of 1.593 kg m −2 h −1 in seawater. Furthermore, the system demonstrates exceptional long-term stability with negligible salt crystallization over continuous 8-h testing. This work highlights the potential of gradient hydrophilicity and optimized photothermal functionalization for robust and efficient solar-driven water purification.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 6
·e70630
·
IF 3.8
Caiyue Gao,Longhao Xie,Shuhong Jiang,Kainat,Hong Chen,Honghai Yang,Jun Wang
In order to obtain a loose selective layer of NFC membranes for dye desalination, a novel polyesteramide composite nanofiltration membrane based on Galp/PIP was fabricated by interfacial polymerization (IP) with d -(+)-galactose (Galp) and piperazine (PIP) as the alcoholic hydroxyl-amino mixed aqueous monomer and trimesoyl chloride (TMC) as the organic monomer in this work. The influence of the Galp/PIP weight ratio on the membrane's properties and separation performance was systematically investigated. The results indicate that the water flux and dye wastewater flux, the thickness of the selective layer, surface roughness, molecular weight cutoff (MWCO), and average pore size increased; however, the surface zeta potential became less negative due to the neutral charge of Galp, and the water contact angle decreased with the increase of the Galp/PIP. The water permeance and dye rejection were strongly dependent on the Galp/PIP ratio. At the optimal ratio of 4/6, the water permeation and the dye wastewater flux were up to 19.7 and 13.8 L/m 2 h bar, respectively, and the RB5 rejection was 92%. Compared to 0/10, the water permeation and the dye wastewater flux increased 59.2% and 57.5%, respectively, and the RB5 rejection was 97.4%, while the NaCl rejection was below 5%. In addition, this outstanding fractionation performance remained stable during extended operation with simulated dye/salt wastewater.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70695
·
IF 3.8
Yong Zhao,Jingjing Cao,Yao Sun,Yi Li,Ce Liang,Hongbin Cui
The present study involves the development of a hydrogel membrane by the cross-linking of xanthan gum (XG) and sodium citrate (SC) by a dehydration condensation reaction. The hydrophobic cavities of hydroxypropyl-β-cyclodextrin (HPCD) are integrated into this system, and the hydrogel system that has been successfully fabricated can be used for drug delivery. Moreover, a hydrogel-based delivery platform was developed by incorporating varying concentrations of magnetic nanoparticles, enabling the modulation of drug release rates through external magnetic field stimulation. This drug delivery system enables regulation of drug release efficiency through tuning the applied magnetic field, whereas an increase in the dose of magnetic nanoparticles will improve the efficiency of drug release. The experimental findings suggested that the drug sustained-release performance of the XG/SC/HPCD drug-loaded hydrogel film was effectively enhanced under an applied magnetic field. Specifically, the drug release after 300 min from the hydrogel film containing 15% magnetic nanoparticles was 67% lower with the magnetic field applied compared to without it. Furthermore, biocompatibility tests (Cell Counting Kit-8 (CCK-8) assay) showed that the cell viability of L929 fibroblasts remained at approximately 99% after 4 h, confirming that this series of hydrogel films possesses good cytocompatibility and exhibits no cytotoxicity.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70673
·
IF 3.8
Bochao Pan,Jingyuan Xu,Donglin Tang
Biobased fibers have gradually gained attention with the development of fiber industry due to the characteristics of renewability and environmentally friendliness. For polyureas derived from urea and biobased diamine, the excellent properties such as high strength, high toughness, and rapid crystallization, offer them great potential in the construction and application of fiber materials. It is in this work aiming at constructing high-performance polyurea fibers, taking the problems of poor pulverizability and high melt viscosity into account. A three-step process, including prepolymerization, reactive extrusion, and drawing, was proposed and accomplished to conduct fiber formation for the polyurea. Prepolymerization was carried out via melting polycondensation from urea and 1,10-diaminodecane. The oligomer obtained was then able to be crushed into particles for extrusion. The reactive extrusion in which chain extension took place was conducive to increasing the molecular weight ( M n = 23.2 kg/mol). The obtained fiber was then further drawn at 160°C to increase the crystallinity and as a result, to increase the strength. A reorganization of crystal structure for the drawn yarn can be observed and improved crystallinity was detected. The tensile strength is found to be increased from 45 to 600 MPa after drawing, while the modulus is found to be from 1.1 to 5.9 GPa. It is concluded that the difficulties in the processing and formation of polyurea fiber have been solved in this study. Such technique developed here expands the application fields of polyurea materials and provides a new option for the development of high-performance biobased fibers.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70693
·
IF 3.8
Hanxin Zhang
Polyurea (PUA) elastomers are highly promising as protective coatings due to their exceptional energy dissipation against dynamic impact. However, conventional PUA suffers from low structural rigidity, and introducing rigid nanofillers often causes severe agglomeration and weak interfacial bonding, thereby hindering the simultaneous improvement of strength and toughness. To address these challenges, an interfacial covalent bridging strategy is developed to prepare isophorone diisocyanate (IPDI)-modified boron carbide (m-B 4 C) reinforced polyaspartic ester polyurea (PAE) coatings. Integrating IPDI-assisted mechanical exfoliation with in situ polymerization ensures uniform dispersion and robust filler-matrix covalent bonding. Nanocomposite coatings with 0.2, 0.5, and 1.0 wt% B 4 C or m-B 4 C were prepared; the optimized 0.5 wt% m-B 4 C coating exhibits 27.8 MPa tensile strength, 350% elongation at break, and 37 kN/m tear strength. Notably, the impact strengths of coated aluminum alloy and epoxy substrates reach 461 and 64 kJ/m 2 , successfully overcoming the stiffness-ductility trade-off. Furthermore, the coatings demonstrate exceptional anti-corrosion capabilities, maintaining a high impedance modulus (6.3 × 10 6 Ω cm 2 ) after 14 days in NaCl solution and remarkable rust resistance during 100 h of salt spray testing. These findings elucidate the synergistic energy dissipation and physical barrier mechanism of the rigid-particle/flexible-matrix architecture, providing a pathway toward designing high-performance multifunctional lightweight protective coatings.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70685
·
IF 3.8
Yi-zhen Sun,Shuai-nan Zhang,Xu-zhao Li
In this study, polyethylene glycol dimethacrylate-ethylene glycol dimethacrylate-4-vinylbenzyl chloride (PEGMA-EGDMA-VBC, PEV) nanospheres were synthesized using PEGMA, EGDMA, and VBC as copolymerizable monomers, with polyvinylpyrrolidone (PVP) as a dispersant. Subsequently, using sodium diethyldithiocarbamate trihydrate (NaDDC) as the iniferter and employing Iniferter radical polymerization technology with an LED lamp as the UV light source, a novel myricetin surface molecularly imprinted polymer (MYr-MIPs) was successfully prepared. The results showed that the material has a maximum equilibrium adsorption capacity of 45.26 mg g −1 and an imprinting factor (IF) of 4.15. It exhibits excellent selectivity for myricetin, with capacity loss < 16% after five adsorption–desorption cycles, demonstrating good reusability. Characterization by TEM, SEM, FT-IR, BET, EDS, DLS, and TGA confirmed the feasibility of this experimental method, laying the foundation for convenient, rapid, and efficient enrichment of myricetin in complex systems at low concentrations.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 4
·e70572
·
IF 3.8
Weining Liu,Miaomiao Liu,Wanxiong Yong,Tuodong Xiong,Guodong Fu
Photochromic materials can absorb specific wavelengths of light, thereby exhibiting photochromic effects. Among various photochromic materials, TiO 2 has garnered significant attention due to its abundance, eco-friendliness, and non-toxicity. However, most TiO 2 -based photochromic materials require doping or modification to achieve their photochromic properties, and the photochromic performance of pure TiO 2 is typically limited to solvents. To address this challenge, uniformly sized (~5 nm) and well-crystallized TiO 2 NPs were prepared through a simple reflux method, followed by surface modification with butanol. The synthesized TiO 2 NPs were characterized using XRD, FTIR, and TEM. XRD and TEM confirmed their anatase phase composition, while FTIR results indicated the successful grafting of butanol groups onto the surface of TiO 2 NPs. Subsequently, the nanoparticles were dispersed in ethanol, demonstrating significant photoresponse under ultraviolet irradiation and rapid recovery to their initial color upon exposure to air. To overcome the limitation of solvent-dependent color change, the nanoparticles were incorporated into P(HEA-AM) hydrogel, which initially exhibited excellent optical transparency. The solvent molecules retained within the hydrogel synergistically enabled the photochromic performance of the TiO 2 NPs. The microstructure, photochromic properties, mechanical performance, and photochromic mechanism of the resulting photochromic hydrogel were systematically characterized and analyzed. UV–vis results revealed that the light transmittance of the hydrogel decreased from an initial 90% to 16%, demonstrating its excellent light modulation capability. Based on its superior photochromic performance, the feasibility of its practical applications, such as information storage, was explored. Under ultraviolet irradiation, P(HEA-AM)-TiO 2 could clearly display targeted printed content.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 6
·e70241
·
IF 3.4
Wei Wan,Yanting Wang,Dongmei Xie,Jingjing Su,Junrong Luo,Chaobing Liao,Yuejun Ouyang
Flexible dielectric materials with elevated dielectric constants and enhanced electrical breakdown resistance are critical for energy storage and wearable electronics. Herein, we developed a dual-strategy approach to enhance the dielectric performance of polyvinyl alcohol (PVA) based composites: (1) surface modification of Ti 3 C 2 T x MXene via H 2 O 2 oxidation to construct insulating TiO x coatings, and (2) structural engineering via a three-layer sandwich design. The MXene@TiO x /PVA interlayer was confined between pure PVA barrier layers using sequential solution casting. Systematic characterization confirmed the formation of amorphous TiO x coatings that effectively mitigates dielectric dissipation while improving voltage endurance. Furthermore, the sandwiched structure construction further improved these properties, leading to superior dielectric properties. The optimized composite with 2 wt.% Ti 3 C 2 T x MXene@TiO x in the interlayer demonstrated a dielectric constant of 12.62 (at 100 Hz) with ultralow loss tangent of 0.059, while achieving a breakdown strength of 194.2 kV/mm and an energy density of 2.25 J/cm 3 . This synergistic strategy of surface passivation and structural engineering provides a scalable pathway for designing eco-friendly dielectric composites with balanced electrical performance.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 6
·e70234
·
IF 3.4
Bo Liu,Zhigang Yuan,Caizhao Liu,Mehdi Derradji,Mingming Sun,Xugang Zhang,Bin Zhang,Lei Wang,Jianhui Li,Tianyi Xie,Jinzi Li,Gang Xue,Ming Zhao,Xue Zhang,Caiyu Song,Shuangle Xue
A bio-based allyl-terminated benzoxazine (AMP) was copolymerized with epoxy resins (E51) to enhance the toughness of epoxy resins. The curing behavior of the blended resins was investigated using differential scanning calorimetry (DSC) analysis and Fourier transform infrared (FTIR) spectroscopy. The crosslinking density and gel content of EP-AMP resins were decreased with the increasing AMP content. AMP significantly improved the residual carbon yield ( Y c ) of epoxy resins following high-temperature combustion in N 2 atmosphere, with enhancements correlating positively with AMP concentration. Compared with the value of EP resins (14.92%), the value of EP-4AMP resins (19.41%) was well increased. The mechanical properties (including flexural, impact, and tensile tests) were evaluated, revealing substantial improvements. The flexural strength, tensile strength, and elongation at break of EP-3AMP resins were 11.7%, 104.8%, and 67.6% higher than EP resins, respectively. The impact strength of EP-2AMP resins was 66.9% higher than EP resins. Furthermore, the incorporation of AMP markedly modified both adhesive (lap shear strength and peel strength) and dielectric properties of the epoxy resins.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 4
·e70171
·
IF 3.4
Huanhuan Bai,Yuxin Chen,Chengzhi Song,Yanyan Dong,Xu Meng
Superhydrophilic/submerged superoleophobic cotton fabrics with antibacterial properties were obtained by loading SiO 2 nanoparticles and Ag + on the surface of cotton fabrics through SiO 2 –Ag + composite sols, followed by the modification of the cotton fabrics with dopamine methacrylamide (DMA) and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA). The surface morphology and wettability of the modified fabrics were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric/differential thermal analysis (TG), and contact angle measurement. The underwater contact angle and surface wettability analysis showed that the modified cotton fabric had an underwater oil contact angle of 166.5°. The prepared fabric can be used as an effective medium for the gravity-driven separation of oil/water mixtures. The modified fabrics showed resistance to sparing of vegetable oils or different organic solvents, and the average separation efficiency was better than 93% for all types of oil/water mixtures and up to 97%. In addition, the modified fabrics successfully inhibited the growth of Escherichia coli and Staphylococcus aureus with excellent antimicrobial properties.
研究领域:
材料科学
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环境科学
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 5
·e70213
·
IF 3.4
Yonglin Wang,Wenzhen Qin,Jianping Zhou,Kaixuan Lei,Shulin Bai,Jianfang Cao,Xiu Wang,Hongbo Liang
The effect of sodium dodecylbenzenesulfonate (SDBS) surfactant on dispersion performance of sodium styrene sulfonate hydrate modified polyethersulfone (sPES) sizing and the interface of carbon fiber reinforced polyether ether ketone (CF/PEEK) composites was studied. The addition of SDBS reduced the particle size of the sPES dispersed in water, improving the film-forming and stabilization of the sizing agent. It was found that the SDBS would not affect the interfacial adhesion of CF/PEEK composites when the weight of SDBS was below 0.6 wt%, but the excessive amount of SDBS seriously reduced the interface strength in composites. Finally, the enhancement mechanism of the sPES/SDBS sizing agent for CF/PEEK composites interface was elaborated.
研究领域:
材料科学
·
复合材料
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 4
·e70183
·
IF 3.4
Shiji Gao,Chong Yu,Xiaopei Li,Enming Huang,Shiyu Wang,Xuanwei Zhang,Yongjie Zhang
Recycling of discarded polyolefins is vital to reducing dependence on oil, promoting resource sustainability, and achieving a closed-loop economy. Direct recycling without time- and labor-consuming sorting is an efficient and economical approach to the treatment of polyolefins from mixed waste streams. However, the immiscibility of different polyolefins would lead to severe phase separation and inferior properties of generated blends. To solve this problem, an acyloxyimide-based initiator, namely N -acetoxy-phthalimide (NAPI), was utilized to in situ generate graft copolymers and grafted/functionalized polyolefins via a simple, one-step, and scalable reactive blending approach. Compared to traditional peroxide initiators, NAPI is a more efficient H-abstracting agent while avoiding undesired side reactions (β-scission and cross-linking). The in situ resultant graft copolymers and grafted/functionalized polyolefins serve as efficient compatibilizers that considerably enhance the compatibility of binary isotactic polypropylene ( i PP) and polyethylene (PE) blends by reducing interfacial tension and, consequently, improving the mechanical properties of mixed polyolefin blends. The presence of i PP-PE graft copolymer was solidly evidenced by infrared spectroscopy analyses. Compared to the control i PP/PE blend, the elongation at break, impact strength, and bending modulus of the modified i PP/PE blend increased by 471.7%, 21.5%, and 45.7%, respectively.
研究领域:
材料科学
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环境工程
·
高分子化学
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高影响因子
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