POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 4
·e6359
·
IF 3.1
Jinghan Zhang,Weijia Zhang,Changhua Li,Bihe Yuan
The frequent occurrences of offshore oil spills have led to severe environmental contamination and ecological threats. However, traditional recovery methods pose issues such as high-energy consumption, low absorption efficiency and secondary pollution. This work prepared a hydrophobic aerogel (P-GO@CNTs-9/ATP/SA) using sodium alginate, attapulgite and graphene oxide surface-modified carbon nanotubes with superior solar/Joule heating ability. The water contact angle of this aerogel is approximately 147.5°. Moreover, this aerogel demonstrates stable and efficient photothermal conversion properties, reaching a surface temperature of 82.3 °C under one solar illumination (1 kW/m 2 ). Furthermore, when applying a voltage of 10 V, the surface temperature of the P-GO@CNTs-9/ATP/SA aerogel reaches 170.4 °C, assisting photothermal conversion to enhance the fluidity of viscous oil, thereby conserving energy. Finally, we present a continuous absorption device utilizing P-GO@CNTs-9/ATP/SA as the primary component, enabling automatic switching between photothermal and electrothermal modes for the comprehensive and continuous treatment of oil spills. Due to the unique design, environmental friendliness and ideal absorption capacity, this approach offers a novel choice for recovery of oil spills, which is expected to further promote principles of sustainable development.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2017
·Vol. 29
·期 3
·1030-1038
·
IF 1.907
Gonglei Shao,Junfeng Xiao,Zhihong Tian,Jiajia Huang,Siguo Yuan
A novel chelating resin (PPS-ATD) containing N and S elements was prepared through the chloromethylation of polyphenylene sulfide resin and subsequent functionalization with 2-amino-1,3,4-thiadiazole (ATD). The structure of PPS-ATD was systematically characterized and analyzed by the Fourier transform infrared spectroscopy, elemental analysis, thermogravimetric analysis, scanning electron microscope, and energy dispersive spectrometer. The adsorption performance of PPS-ATD was evaluated by batch methods at different pH, temperature, adsorption time, and initial concentration, and the results showed that the PPS-ATD exhibited high adsorption capacity (197.79 mg·g −1 at 298 K) and selectivity for Hg(II). The adsorption of PPS-ATD for Hg(II) was well fitted by the Langmuir isotherm model, and the adsorption process was endothermic. After 5 consecutive regeneration cycles, no obvious loss in the adsorption capacity of the PPS-ATD was found, which implied that the PPS-ATD had great application prospects in the treatment of mercury-containing wastewater.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2018
·Vol. 29
·期 5
·1360-1371
·
IF 2.137
Lei Zheng,Hui Wang,Xiaomin Cheng
In this study, a series of imprinted poly(methacrylic acid- co -ethylene glycol dimethacrylate) nanocarriers for diclofenac and corresponding nonimprinted polymer nanocarriers have been synthesized in 4 different types of solvents by precipitation polymerization. The products were characterized by Fourier transform infrared, scanning electron microscopy, dynamic light scattering, and Brunauer-Emmett-Teller measurement. Results showed that uniformly sized molecularly imprinted polymer (MIP) nanospheres with relatively good porosity could only be obtained in acetonitrile. The effects of solvents on the recognition and release properties of polymer particles were also carefully investigated. The binding experiments indicated that MIPs prepared in acetonitrile displayed much higher binding capacity than other MIPs with a maximum binding capacity of 65.18 mg g −1 . The Scatchard analysis showed that synthetic MIPs have special recognition sites for diclofenac, while nonimprinted polymers have not. The Sips model could provide a best fit to the equilibrium data of nanocarriers over whole concentrations. The experimental data of an adsorption kinetic study were well fitted to the pseudo–second-order kinetic model, indicating the chemisorption mechanism between diclofenac and MIPs in the process of adsorption. The drug release of diclofenac from MIPs could well be described by the Ritger-Peppas model, suggesting a non-Fickian diffusion mechanism. In addition, we successfully used MIPs to extract diclofenac at low levels from fetal bovine serum.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2017
·Vol. 29
·期 2
·941-950
·
IF 1.907
Jing Ma,Yi He,Guangyong Zeng,Fei Li,Yubin Li,Jianfei Xiao,Shuizhen Yang
Due to the narrow layer spacing, graphene oxide (GO) composite membrane usually exhibits a relatively low water flux in the process of wastewater treatment. In this study, GO was reduced to reduced graphene oxide through a bio-inspired method, which was functionalized modified by poly-dopamine (PDA). Then a series of PDA/reduced graphene oxide sheet films were prepared by vacuum filtration on the surface of cellulose acetate membrane (under the pressure of −0.1 MPa). The result indicated that the novel membranes had an excellent stability owing to the cross-link of PDA. In addition, the hydrophilicity of membrane was increased significantly after PDA modification, which presented a superior water flux than pure GO composite membrane. More importantly, as-prepared membranes were successfully applied for the removal of dyes (including Congo red, methylene blue, and rhodamine B) and heavy mental ion (Cu(II)) from simulated wastewater. This work might provide a new method for preparation and application of GO composite membranes.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 4
·e70085
·
IF 3.4
Ziyun Li,Qiwei Zheng,Menghan Zhong,Chao Wang,Shengwei Fang,Renfeng Zhou,Min Xia,Yanrong Jia,Juan Zhang,Peng Ye
Internal emulsification emulsions are environmentally friendly and do not emit volatile organic compounds (VOCs). However, their micelle interface, dominated by ionic hydrophilic groups, hinders cross-linking reactions and affects performance. We proposed a dual-functional micellar interface (DFMI) that distributes both ionic and reactive hydrophilic groups, enhancing cross-linking performance without significantly compromising emulsification properties. In this study, a series of sugar-based hyperbranched waterborne polyurethane emulsions were synthesized with 2,2-dimethylolpropionic acid (DMPA) as the ionic hydrophilic moiety. Dopamine (DA) was introduced at varying levels as the reactive hydrophilic moiety for terminal modification. The results showed that monomolecular micelles and vesicular micelles could be formed by symmetric and asymmetric modification of terminal DA. Symmetric modification tended to form unimolecular micelles, while asymmetric modification tended to form vesicular structures. Adhesion tests conducted after cross-linking with gelatin showed that the asymmetrically modified adhesives with seven-layer structured DA exhibited better cross-linking degrees. Adhesion performance and swelling tests confirmed that the asymmetric structure exposed more terminal reactive groups, enhancing the utilization of the modified groups, as indicated by dynamic light scattering (DLS) for emulsion particle size and surface zeta potential. This study successfully prepared hyperbranched polyurethane emulsions with tunable micelle morphology, balancing emulsification ability, and cross-linking degree, supporting the controlled emulsification of hyperbranched polymers and the development of bio-based adhesives.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 1
·e6274
·
IF 3.1
Jia-Horng Lin,Xiao Han,Xia-Yun Zhang,Xue-Fei Zhang,Yan-Ting Wang,Hao-Kai Peng,Li-Yan Liu,Lu Zhang,Ching-Wen Lou,Bing-Chiuan Shiu,Ting-Ting Li
In order to develop a soft composite with high-performance puncture resistance and self-healing property property, herein, we introduced Pluronic F127 diacrylate (F127DA) into titania-based nanocomposite hydrogels (PAMT) and then compounded hydrogel and aramid fabric to form gel-matrix soft composites (GMSCs). The result shows that, with the addition of 5 wt% TiO 2 nanoparticles, the hydrogels exhibited a fracture strain of 3898%, a toughness of 12.23 MJ/m 3 and a self-healing efficiency of 99.45% after healing at 100°C for 12 h, indicating multiple recycling feature. In addition, a series of mechanical tests had shown that the resultant GMSCs exhibited incredible spike puncture resistance and knife puncture resistance, 17.66 times and 13.78 times greater than that of pure fabrics, and could achieve 33.84% spike puncture self-healing efficiency and 26.62% knife puncture self-healing efficiency. The synergetic reinforcement mechanism of the hydrogel and fabrics was also analyzed. This study provides a valuable reference for designing a puncture resistant soft composite with rapid self-healing and repeated recycling.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 6
·e6481
·
IF 3.1
Yuquan Chen,Bin Ren,Xuemei Li,Suhan Rao,Zhangyi Guo,Yufei Li,Ying Huang,Ming Kang,Xiuyun Li
Traditional epoxy resins are made from non-renewable fossil resources, which are difficult to reprocess and recycle, and their flammability makes them unsafe during use. In this experiment, an epoxy resin containing Schiff base (TA-VAN-EP) was synthesized successfully with biomass-derived raw materials. This new material not only had favorable mechanical properties but also had good flame retardancy and degradation properties. The chemical structure of TA-VAN-EP was characterized by Fourier transform infrared (FTIR) spectroscopy and 1 H nuclear magnetic resonance (NMR) spectroscopy. Its mechanical properties, thermal stability, flame-retardant properties, and other properties were tested. The results showed that, compared with the pure epoxy resin (EP), the mechanical properties of TA-VAN-EP were significantly improved, and the glass transition temperature ( T g ) was increased from 152°C to 190°C. Additionally, TA-VAN-EP reached a V-1 rating during the UL-94 test, and the limited oxygen index (LOI) value increased from 24.7% to 28.4%. Also, the total heat release (THR), smoke production rate (SPR), and total smoke release (TSR) decreased extremely. Moreover, TA-VAN-EP demonstrated good degradation performance under acidic conditions. In conclusion, this work provided a new idea for the production of bio-based flame-retardant epoxy resin with promising degradable abilities and mechanical properties.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 2
·e70108
·
IF 3.4
Hongjie Lu,Xiaoqiang Chen,Wanzhen Xu,Wenming Yang,Weihong Huang
The issue of pharmaceutical residues in the environment has become increasingly severe, with the detection of sulfonamide antibiotics emerging as a research hotspot in environmental monitoring. Herein, we present a method for detecting sulfadiazine based on a silicon quantum dots (SiQDs)-based fluorescent molecularly imprinted sensor. SiQDs, synthesized using an aqueous phase method, exhibit remarkable fluorescent properties, such as a broad excitation spectrum, tunable emission wavelengths, and high fluorescence stability, offering significant advantages in pharmaceutical detection. By integrating amino-functionalized silica nanospheres (NH 2 -SiO 2 ) and tetraethyl orthosilicate, SiQDs were surface-functionalized to construct SiQDs@NH 2 -SiO 2 @MIPs composite materials. The modified fluorescent molecularly imprinted polymers not only exhibited high selectivity and affinity for the target molecule SDZ, but also demonstrated excellent stability and resistance to interference in complex environments. Experimental results revealed that the sensor displayed a strong linear correlation within the concentration range of 40–100 μmol·L −1 , with a detection limit of 0.036 ng·mL −1 , demonstrating high sensitivity and excellent selectivity. In real sample applications, the recovery rate ranged from 97.88% to 100.74%, with a relative standard deviation of less than 5.37%. These findings emphasize the wide potential applications of this sensor, especially in water quality monitoring, environmental protection, and pharmaceutical detection.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 12
·e70005
·
IF 3.1
Ming Jiang,Haili Zhao,Tao Chen,Guangming Li
Porous biodegradable polybutylene adipate terephthalate (PBAT)-based material, used in wearable electronics for sensing human motion, is beneficial for environmental protection. Although PBAT demonstrates good elongation at break and impact performance, specific studies on its processing, modification, and porous structure are needed. Therefore, PBAT/single-walled carbon nanotube (SWCNT) porous material was prepared via a salt-templating method. It was found that part of the SWCNT was embedded in the walls of the pores in the PBAT substrate, while another part was exposed on the pore surface. PBAT served as the structural framework, and SWCNT functioned mainly as the active component, especially the SWCNT exposed on the surface. This unique microstructure imparted the porous material with desirable piezoresistive properties and effective electromagnetic interference (EMI) shielding capabilities. When the material was compressed, the exposed SWCNT was forced into closer contact, increasing the number of electrical transport pathways and further enhancing conductivity. The resulting porous sensor exhibited a notable response to strain up to 100% and demonstrated high sensitivity (1.25) while maintaining robust cyclic stability after 1000 cycles. Human pulse and finger flexion were successfully recorded using the fabricated porous sensor. Moreover, the porous material displayed EMI shielding capabilities, primarily through the absorption of electromagnetic (EM) waves, a phenomenon associated with the rough surface of the pores created by the exposed SWCNT. The overall electromagnetic shielding effectiveness was around 60 dB. Given these advantages, the green biodegradable material PBAT shows significant potential for application in piezoresistive sensors and electromagnetic interference shielding with appropriate modification and preparation.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 12
·e6591
·
IF 3.1
Chuanbo Cong,Mingyang Yuan,Han Wang,Rehan Umer,Daigang Peng,Jianglin Ouyang
In order to improve the thermal stability of silicone rubber (SR), cerium-tin composite oxides (CeSnO-x) are used as thermo-oxidative stabilizer in phenyl methyl vinyl silicone rubber (PVMQ). CeSnO-x are synthesized via the sol–gel method and characterized by scanning electron microscopy, x-ray diffraction, and X-ray photoelectron spectroscopy (XPS) showing that tin doping led to more oxygen vacancies in CeSnO-x compared to CeO 2 . Through thermogravimetric analyzer, differential scanning alorimetry (DSC) and average activation energy calculation of PVMQ with different thermo-oxidative stabilizer, it was found that CeSnO-8 is outperforming CeO 2 , SnO 2 , and their mixtures in improving the thermo-oxidative stability of PVMQ. In mechanical property tests, due to tin doping, CeSnO-8 exhibit superior performance at all stages during thermo-oxidative aging comparing the different effects of CeO 2 and SnO 2 in different aging stages. XPS of PVMQ composites investigate the mechanism by which CeSnO-8 exhibit different effects. Fourier transform infrared spectroscopy characterizing the Si-C and Si-O bond changes in PVMQ composite before and after aging and the measurement of Mc explore thermo-oxidative stabilizers' role during thermo-oxidative aging of PVMQ. Thermogravimetry-infrared spectroscopy comparisons between unstabilized PVMQ and CeSnO-8-stabilized PVMQ show that CeSnO-8 effectively quenched radicals produced by the oxidation of the PVMQ side group, but exacerbate degradation caused by molecular chain rearrangement.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 2
·e70106
·
IF 3.4
Jingbo Shen,Yakai Feng
Thermal interface materials are crucial for the thermal management of modern electronic devices. The thermal conductivity of polymer-based composites, as the widely used thermal interface materials, is still limited by the high interfacial thermal resistance between the polymer matrix and the filler. Herein, pitch-based carbon fibers co-modified with silane coupling agent and Ag nanoparticles were developed and used as thermally conductive fillers to prepare silicone composites with the purpose of improving interfacial compatibility and reducing interfacial thermal resistance. Under scanning electron microscope observation, the modified carbon fibers dispersed uniformly, and they were adhered to by a number of Ag nanoparticles. The thermal conductivity of the silicone composite with a 20 wt% filling amount of modified carbon fibers reached up to 1.624 W m −1 K −1 , which was 1.46 times higher than that of the unmodified carbon fiber filled silicone composite. The silicone composite with a 20 wt% filling amount of modified carbon fibers also exhibited a relatively high heat transfer rate and excellent mechanical properties. The electrical insulation and dielectric properties of silicone composites filled with modified carbon fibers also satisfied the requirements for the use of thermal interface materials. This approach provided an effective strategy for the development of thermal interface materials with high thermal conductivity in the thermal management field.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 6
·e6424
·
IF 3.1
Jianyong Liu,Hongxia Li,Chenhao Shi,Yi Liu,Changcan Shi,Xuedong Sun,Xujian Li,Xumin Chen
In hemodialysis, tunneled cuffed catheter (TCC) is commonly used as a medical device for establishing vascular access. To address the current problem that the skin tunnel of TCC is susceptible to bacterial infection, this work proposes quaternized modification of the cuff of TCC to comprehensively enhance the long-lasting antimicrobial performance of TCC. The morphology of the cuff basically resembles the polyethylene terephthalate (PET). Via ultraviolet (UV) irradiation, acrylic acid (AA) was grafted onto PET. Then, amino polysaccharide quaternary ammonium salt (As) replaced H + of the carboxyl groups on the macromolecular chain of PET through solution post-treatment method. Through the single factor experiment, the degree of grafting reached 159.8% under the optimum preparation conditions (AA concentration of 25 vol%, H + concentration of 0.2 mol/L, photosensitizer capacity of 15 wt%, and photo-irradiation time of 30 min). By the above method, we successfully synthesized a highly hydrophilic, well biocompatible, and highly efficient antimicrobial PET-g-PAA@As. Animal experiments and histological analyses showed that PET-g-PAA@As was superior to PET control and blank control groups in controlling infection and promoting wound healing. This catheter material with excellent biocompatibility, sustained antimicrobial activity, and wound healing ability will have great potential for use in hemodialysis.
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高影响因子
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