JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Bingtao Bao,Jianhua Wu,Hao Liu,Mingjin Xue,Jianmin He,Hanzhong Ren,Yiting Xu,Birong Zeng,Weiang Luo,Lizong Dai
Polyaniline (PANI) is considered as one of the most promising corrosion inhibitors because of its unique redox and environmental stability. Pyridine and its derivatives can chelate metal ions during corrosion, forming an inert protective layer on the metal surface to achieve the anticorrosion effect. Therefore, polyaniline is combined with pyridine together to achieve deep anticorrosion in this work. 4-((2,2′:6′,2″-terpyridin)-4′-yl)aniline (TPY) and 1,3,5-benzenetricarbonyl chloride (TMC) were applied to synthesize a novel corrosion inhibitor N1, N3, N5-tri (4-((2,2′: 6′, 2′-tri-pyridine)-4′-yl) phenyl) benzene-1,3,5-tri-formamide (TBT). Then, TBT was in situ loaded onto the PANI surface to obtain the composite TPANI. The TPANI was successfully dispersed in epoxy resin (EP) at various dosages to prepare composite coatings. Electrochemical impedance spectroscopy and salt fog tests were employed to evaluate the performance of the coatings. After experimentation, we discovered that when the TPANI content was 0.25 wt%, the impedance value remained stable at 5.83 × 10 9 Ω cm 2 after immersing the coatings in a 3.5 wt% NaCl solution for 28 days. In contrast, the EP coating exhibited a resistance decrease ranging from 9.56 × 10 9 to 7.8 × 10 8 Ω cm 2 within the same soaking time, decreasing by an order of magnitude, while the TPANI-0.25% coating still maintaining a high order of magnitude. These results indicated that the TPANI filler effectively preserved long-term stability and provided persistent protection against corrosion. The protective mechanism of TPANI composite coatings was further elucidated through detailed analysis. Overall, the incorporation of TPANI into the epoxy resin yielded promising results, demonstrating its potential as an effective corrosion inhibitor for protective coatings.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Huijie Qin,Tongwei Zhang,Lihong Bao,Bo Dang,Jianxi Li
In this research, iron tetroxide (Fe₃O₄) nanoparticles were in situ synthesized on the surface of molybdenum disulfide (MoS 2 ) via a radiation technique to fabricate a MoS₂@Fe₃O₄ hybrid. Notably, the tensile strength and elongation at break of ethylene vinyl acetate (EVA)/magnesium hydroxide (MH) composites were enhanced by 62.5% and 59.1%, respectively, with the addition of one part of the MoS₂@Fe₃O₄ hybrid, attributed to its excellent reinforcing effect. Simultaneously, the peak heat release rate (pHRR) and total heat release of the EVA/MH composite decreased by 45.9% and 14.4%, respectively, while the residue content increased to 43.4%. Furthermore, EVA/MH/MoS₂@Fe₃O₄ composites with one part of the MoS₂@Fe₃O₄ hybrid generated significantly fewer toxic gases (such as CO) compared to EVA/MH composites, demonstrating enhanced fire safety. This study underscores the potential of creating noble metal-free layered composites by integrating cost-effective and eco-friendly Fe₃O₄ co-catalysts, such as MoS₂@Fe₃O₄ hybrids, to improve the fire safety of EVA composites.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 34
·e55859
·
IF 2.7
Jian Wu,Shihao Zhou,Kai Lv,Wu Zhang,Yi Zhang,Hang Li,Dong Ma
Uncontrollable bleeding caused by accidental severe trauma and organ operation severely affects people's life safety, even leading to death. Therefore, it is important to cease the bleeding quickly and effectively. Here, we report a rapid photocrosslinking hydrogel (DP-F127 hydrogel) based on F127 and acrylate functional motifs for in situ emergency hemostasis. The acrylate groups in DP-F127 can be cross-linked within 10 s by UV irradiation. The resulted hydrogels exhibit excellent mechanical properties, biocompatibility, and rapid hemostatic ability. The in vivo studies on the DP-F127 hydrogel demonstrated that liver bleeding could be rapidly repaired and show significantly less blood loss than commercially available dressing (Gelatin sponge, GS). This study provides a new paradigm for developing a hemostatic hydrogel with the rapid speed of crosslinking for in situ emergency hemostasis.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Shengdong Liu,Da Li,Tianhua Xiao,Zhufeng Yuan,Huanhuan Zhang,Yonggang Min
Polyetheretherketone (PEEK) emerges as a highly promising biopolymer due to its mechanical properties and elastic modulus akin to those of human cortical bone. Despite these advantages, the clinical utilization of PEEK is often hindered by its limited bioactivity and suboptimal capability for bone integration. Herein, we introduce a facile and expeditious method for enhancing the osseointegration efficacy of PEEK substrates by depositing polydopamine (PDA) chelated with magnesium ions at varying concentrations (0.02, 0.1, and 0.5 M) as a surface coating (PDA-Mg). This PDA-Mg-modified PEEK surface exhibits distinctive properties, including antibacterial properties (antibacterial rate of 93.267%), improved vascular regeneration, and osteogenic promotion (ALP activity increased by 239.5%). Moreover, the Mg 2+ ions are released in a regulated way, and the impact of Mg 2+ concentration on the aforementioned properties has been thoroughly examined. Our study demonstrates that PDA-Mg-modified PEEK offers a highly promising prospect for clinical applications. Specifically, these implants stand out as exceptional candidates for bone graft materials, with the potential to significantly improve patient outcomes and accelerate recovery processes.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Maolin Liu,Changqing Lin,Weicheng Ou,Zehui Lu,Jiayi He,Xiaojie Chen,Fengbin Liu,Guoxiao Lin,Guojie Xu,Han Wang,Chunyang Pan
Cu:CsPbCl x Br 3-x quantum dots (QDs) with different Cu-to-Pb molar ratios were synthesized via a solvent-based thermal synthesis method, and highly stable blue-light PCL@Cu:CsPbCl x Br 3-x composite fibers (CFs) were prepared by electrohydrodynamic (EHD) technology. The photoluminescence (PL) properties of these Cu 2+ -doped Cu:CsPbCl x Br 3-x QDs and the stability of polymer encapsulation were investigated in this study. The results showed that with increasing Cu 2+ concentration, the CsPbCl 1.5 Br 1.5 QDs maintained their initial cubic crystal structure. The doping of Cu 2+ ions effectively eliminated the surface defects of CsPbCl 1.5 Br 1.5 QDs, facilitating excitonic recombination through radiative pathways. The PL quantum yield (PLQY) of Cu:CsPbCl 1.5 Br 1.5 QDs increased to 85%. In addition, The fiber encapsulation method effectively improved the stability of the Cu:CsPbCl 1.5 Br 1.5 QDs, After 3 days in water, the fluorescence intensity still remains at the initial 90%. Based on these results, it is believed that Cu:CsPbCl 1.5 Br 1.5 QDs have promising applications in optoelectronic devices in the future.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Fengbin Liu,Han Wang,Maolin Liu,Zehui Lu,Zhenpei Lin,Ying Chen
Currently, the problem of air pollution is getting more and more serious, especially the pollution of tiny solid particles (PM, particulate matter) in the air, which poses a great challenge to the environment and human health. Therefore, it is particularly important to develop air filtration materials with high filtration efficiency and low resistance to meet this challenge. In this study, we propose to prepare air filtration membranes by centrifugal jet electrospinning technology, design multifactorial orthogonal coupling experiments, and investigate the effects of key process parameters of centrifugal jet electrostatic spinning, including solution concentration, airflow rate, rotational speed, and voltage, on the fiber diameter and uniformity by applying the polar analysis of variance and analysis of variance. PAN-BaTiO 3 electret nanofiber filtration membranes with high efficiency and low resistance were prepared by combining the optimized process of centrifugal blowing electrospinning. Various characterization methods (tensile test, water contact angle test, surface charge test, filtration test) were used to evaluate the effect of different BaTiO 3 electret contents (0%, 0.1%, 0.5%, 1%) on the comprehensive performance of the filtration membranes, and the electret filtration efficiency of the electret filtration membranes prepared by the present process reached as high as 96.56% with a pressure drop of 29 Pa.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Mulenga Kalulu,Onesmus Munyati,Olayinka Oderinde,Jun Hu,Shephrah O. Ogungbesan,Guodong Fu
Anisotropic hydrogel actuators with gradient structures offer tunable mechanical properties, like directional stiffness or bending. However, creating these gradient-structured bilayer hydrogels is challenging, as current methods rely on complex, single-force programming. Developing a double-actuating bilayer hydrogel with temperature-responsive and auxiliary layers could address these limitations and enhance their applicability. In this study, an anisotropic hydrogel actuator was developed using a simple, cost-effective method to create a unique multi-asymmetric structure with an embedded gradient in one layer. The resulting hydrogels exhibited excellent temperature-responsive bending (360° within 9 s) and adaptive, complex shape-programmable deformation (2D letters, flowers, butterflies, leaves). In addition, the hydrogels demonstrated good shape memory, mechanical strength, and conductivity. Prototypes of a hydrogel gripper and humidity alarm were successfully fabricated, showcasing the potential of this strategy for designing smart hydrogels for applications in sensors, smart humidity alarms, grippers, and actuators.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 36
·e55917
·
IF 2.7
Xingshan Yin,Zhiyi Huang,Xiaochun Liu,Yingjuan Sun,Xiaofeng Lin,Wenjing Lin,Guobin Yi
It remains enormous challenges to balance the conflict between high strength and toughness mechanical properties and excellent room-temperature self-healing abilities of polyurethane elastomers. In this work, we report a recyclable room-temperature self-healing polyurethane elastomer with excellent mechanical properties. The prepared polyurethane elastomer (PU-DA-Zn 0.50 ) exhibits high tensile strength of 15.33 MPa, high toughness of 76.77 MJ m −3 , and high elongation at break of 1604.46% by introducing isophorone diamine (IPDA), 1-(3-aminopropyl) imidazole (IMZ) and zinc ions into polymer system to form a dynamic double-cross-linked structure (hydrogen bonds and Zn 2+ -imidazole coordination bonds). In addition, the tensile strength of fractured polyurethane can reach more than 80% of the original sample after 48 h of self-healing at room temperature without external stimuli, which is attributed to the kinetics of rapid exchange of Zn 2+ -imidazole coordination bonds at room temperature. It is worth noting that the balance between excellent mechanical properties and outstanding room-temperature self-healing ability can be optimized by adjusting the Zn 2+ -imidazole coordination bond density in the system. Moreover, the dynamic nature of the double-cross-linking network endows polyurethane with favorable recyclability. The above remarkable comprehensive performances reveal a great potential of PU-DA-Zn x elastomer in the fields of wearable flexible electronic devices such as bionic skin, human motion monitoring, and soft robots.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 142
·期 2
·e56337
·
IF 2.7
ZiXuan Wang,Hao Zheng,Zhengchun Cai,Haian Xia
Bio-based plastics have received much attraction because they are an alternative to petroleum-based plastics in recent years. Among them, aliphatic polyesters have garnered the most attention due to their excellent properties. Polyester is primarily synthesized through ring opening polymerization of monomer, and the catalysts used are mostly synthesized through “click” reaction in the laboratory, which exhibits inferior activity and little commercial value. Herein, a facile approach was developed for the synthesis of high molecular-weight cyclic aliphatic polyesters, specifically poly(valerolactone- co -caprolactone) with varying compositions. This involved the ring-opening copolymerization of ε-caprolactone (ε-CL) and δ-valerolactone (δ-VL) in the absence of an initiator with commercial hydrogen bond donor triclorocarban and an organic base. The structure and properties of the prepared cyclic polyester were investigated using GPC, 13 C NMR, 1 H NMR, MALDI-TOF mass spectrometry, TOF-SIMS mass spectrometry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and X-ray diffraction (XRD) techniques. The results show that the molecular weight of cyclic polyester can rapidly exceed 40 kDa, with a PDI of approximately 1.10. In comparison to linear polyester, it has a higher melting point and superior thermodynamic properties, thus presenting greater application potential. Finally, based on nuclear magnetic resonance titration, the potential catalytic processes and mechanisms of bimolecular systems on monomers in different environments were discussed. This study not only offers new insights into the structure and properties of cyclic polyesters, but also presents novel bimolecular catalytic systems using commercial urea hydrogen bond donors for the synthesis of cyclic polymer polyesters.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Pengtao Lei,Xiangyang Xu,Chenyu Huang,Dongsheng Chen,Zhenkun Jiang
To optimize the proton transport performance of polyvinylidene fluoride (PVdF), a proton exchange membrane (PEM) material, carbon nanotube (CNT), and zirconium hydrogen phosphate (ZrP) have been blended into the PVdF matrix. Adopting a hydrothermal synthesis route, the acidic ZrP can be better conjugated with the positively charged CNT functionalized by cetyltrimethylammonium bromide (CTAB). As visualized using electroscopes, ZrP nanocrystallines are intimately dotted and homogeneously distributed on CNT. The ZrP–PVdF interaction can be attributed to hydrogen bonding between hydroxyl and F-terminal groups. By incorporating well CNT/ZrP into PVdF via solution casting, the pore architecture can be regulated; namely, the macro-voids in PVdF are greatly reduced. The composite membranes exhibit tensile stress of 48–52 MPa while sustaining the thermal stability of PVdF. The incorporated CNT/ZrP can suppress void porosity and enhance film hydrophilicity. With improved wettability, the methanol permeability can be reduced to less than 2 × 10 −9 cm 2 ∙s −1 , ca. one-sixth that of pure PVdF. The proton conductivity for PVdF-CNT 0.03 -ZrP 0.06 , with CNT and ZrP mass content respectively 3 and 6 wt% that of PVdF, attains 0.089 S·cm −1 at 100°C, showing upgraded conducting capability. The membrane selectivity can be remarkably enhanced, verifying that CNT/ZrP blending is a facile and profitable approach for PEM optimization.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 35
·e55898
·
IF 2.7
Sirichai Pattanawanidchai,Pongdhorn Sae-Oui,Noottiyaporn Suwantrakit,Sommat Khunchanon,Pathompong Pangamol,Chomsri Siriwong
Bagasse ash (BA) is an agricultural waste obtained from power plants using sugarcane bagasse as an energy source. Although BA is successfully used as a building material, its application in the polymer industry remains challenging due to the lack of surface reactivity. In this study, BA was purified and named PBA before being incorporated into acrylonitrile butadiene rubber (NBR). Tannic acid (TA), a naturally occurring plant polyphenol, was used as a surface-modifying agent for improved interfacial interaction. The effect of TA content on the properties of PBA-filled NBR was investigated. The results showed that the presence of TA resulted in cure retardation, i.e., the scorch time, cure time, and activation energy of the vulcanization reaction increased with increasing TA content. However, the increase in TA content enhanced a rubber-filler interaction, as evidenced by the considerable increase in bound rubber content. Such an enhancement resulted in the improvement of certain mechanical properties, including hardness, modulus, tensile strength, and tear strength. This research showed that tannic acid can be used as a surface-modifying agent in NBR/PBA composites.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Yi-Kun Wang,Ya-Jun Chen,Yao Pan,Yu Hai-Yin
Traditional biosensors have drawbacks such as temperature sensitivity and cross-reactivity. An innovative UA biosensor was developed. It combined Prussian Blue, carbon nanotubes, PVP with uricase oxidase in a polysulfone hollow fiber gradient membrane, forming a multilayer 3D structure. The optimal pH and temperature for the biosensor were determined to be 8.0 and 37°C, respectively. Electrochemical impedance spectroscopy (EIS) showed that the nanoparticles significantly reduced the working electrode's impedance, enhancing electron transfer. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to study the electrochemical behavior of UA oxidation. A distinct oxidation peak for UA was observed at 0.7 V. The sensor exhibited a sensitivity of 0.33 × 10 −6 A/mM, a linear working range from 1.2 to 12 mM, and a detection limit of 0.424 mM. The porous structure of the membrane and the nanoparticles' synergistic effect contributed to high sensor stability. After continuous use for a week, the sensor maintained approximately 90% of its initial performance. This research demonstrates the effectiveness of our method in developing highly sensitive and stable biosensors for UA detection, providing a promising solution for accurate and reliable uric acid level monitoring.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）