Journal of Applied Polymer Science最新文献

{"title":"Preparation of Antistatic and Flame-Retardant SDBS-Modified Graphite Nanosheet/Polystyrene Nanocomposites by In Situ Suspension Polymerization","authors":"Aili Wang,&nbsp;Jinliang Han,&nbsp;Yunping Tang,&nbsp;Minshan Lu,&nbsp;Kai Wang,&nbsp;Zhanao Wu,&nbsp;Hengbo Yin","doi":"10.1002/app.57665","DOIUrl":"https://doi.org/10.1002/app.57665","url":null,"abstract":"<div>\u0000 \u0000 <p>Graphite nanosheets with thicknesses of approximately 4 nm and lateral sizes of about 7 μm were facilely prepared through sand-milling exfoliation of expanded graphite powder in an aqueous medium. The resultant graphite nanosheets were oxidized with H₂O₂ and subsequently modified with sodium dodecylbenzene sulfonate (SDBS) to endow them with hydrophobicity. The SDBS-modified graphite nanosheets could be effectively filled into polystyrene microspheres with uniform dispersion via in situ suspension polymerization. The SDBS-modified graphite nanosheet/polystyrene nanocomposite demonstrated excellent antistatic and flame-retardant performance at a remarkably low filler content of 4 wt%. The surface electrical resistance and limiting oxygen index of the nanocomposite were 2.14 × 10⁸ Ω·sq.⁻¹ and 28.2%, respectively. The closely neighboring of graphite nanosheets within the polystyrene matrix reduces electron transfer barriers between nanosheets and constructs effective partitions to suppress the permeation of flammable pyrolyzed gases during combustion, which endows the SDBS-modified graphite nanosheet/polystyrene nanocomposite with enhanced antistatic performance and flame retardancy.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 43","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of Chitosan/Genipin-Based Bioactive Hydrogels With Antioxidant and Antibacterial Effects for Infection Management and Chronic Wound Healing","authors":"Chuanxi Chi,&nbsp;Rongrong Li,&nbsp;Yue Zhao,&nbsp;Shangbo Zhang,&nbsp;Junlei He,&nbsp;Jianxi Song","doi":"10.1002/app.57633","DOIUrl":"https://doi.org/10.1002/app.57633","url":null,"abstract":"<div>\u0000 \u0000 <p>Bacterial infections and reactive oxygen species induce inflammation, damaging healthy tissues surrounding the wound and leading to delayed wound healing. Therefore, designing and developing a bioactive hydrogel with excellent antioxidant capacity and antibacterial activity is critically important. In this study, a series of adhesive, antioxidant, and antibacterial hydrogels with desirable properties were developed through the simple mixing of three natural extracts: tannic acid, chitosan, and genipin. DPPH radical scavenging assays and antibacterial tests demonstrated that the incorporation of tannic acid endowed the hydrogels with anti-inflammatory and antioxidant activities. Compression tests and cytotoxicity evaluations revealed that the chitosan/genipin gel network exhibited favorable mechanical properties and biocompatibility. In full-thickness wounds of Sprague–Dawley rats, the hydrogel significantly accelerated wound healing. Overall, this bioactive hydrogel holds significant potential for infection control and chronic wound healing applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 42","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microscopic Fracture Behavior and Thermal-Mechanical Properties of Biowaste-Modified CaCO3/rGO-Carbon Fiber Epoxy Composites for Structural Applications","authors":"Chinmoy Kuila,&nbsp;Animesh Maji,&nbsp;Utpala Mukthipudi,&nbsp;Himadri Roy,&nbsp;Prabhat Kumar Prajapati,&nbsp;Nilrudra Mandal,&nbsp;Phani Kumar Mallisetty,&nbsp;Naresh Chandra Murmu,&nbsp;Tapas Kuila","doi":"10.1002/app.57635","DOIUrl":"https://doi.org/10.1002/app.57635","url":null,"abstract":"<div>\u0000 \u0000 <p>Carbon fiber-reinforced polymer (CFRP) composites have gained significant attention for their lightweight and excellent mechanical properties; however, pure epoxy resins alone cannot meet the demands of high-performance composites. The influence of (CaCO₃/rGO) CACG-based hybrid filler on CFRP composites' thermal and mechanical properties was systematically investigated. Fracture analysis was performed using an in situ notch tensile test in a field emission scanning electron microscope. At the same time, finite element analysis was employed to predict the stress distribution in each ply. The CACG3/CFRP (1 wt% loading of GO) composite showed higher mechanical, viscoelastic, and thermal properties compared to other composites, with tensile and flexural strength enhancements of ~45.33% and 76.17%, respectively. Incorporating the hybrid nanofiller significantly improved the composites' glass transition temperature (<i>T</i>_g) and thermal stability. This study provided valuable insights into the design and development of structural-functional CFRP composites, paving the way for their potential applications in aerospace and other high-performance engineering fields.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 42","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thiol-Ene Click Hydrogels From Pentaerythritol Tetrakis(3-Mercaptopropionate) and Polyethylene Glycol Diacrylate: Mucoadhesive and Antimicrobial Platforms for Drug Delivery","authors":"Diara S. Kazybayeva,&nbsp;Danelya N. Makhayeva,&nbsp;Vitaliy V. Khutoryanskiy,&nbsp;Grigoriy A. Mun,&nbsp;Galiya S. Irmukhametova","doi":"10.1002/app.57644","DOIUrl":"https://doi.org/10.1002/app.57644","url":null,"abstract":"<div>\u0000 \u0000 <p>Hydrogels with mucoadhesive properties offer significant potential for drug delivery due to their tunable physicochemical characteristics and sustained drug release capabilities. This research investigates polymer hydrogels synthesized via thiol-ene click reactions between pentaerythritol tetrakis(3-mercaptopropionate) (PEMP) and polyethylene glycol diacrylate (PEGDA), exploring their potential as effective mucoadhesive and antimicrobial drug delivery systems. Sol–gel analysis revealed that gel formation efficiency depends on the acrylate-to-thiol ratio, with stoichiometric formulations yielding higher gel fractions. FTIR spectroscopy and elemental analysis confirmed the chemical composition of these hydrogels, showing the presence of residual CC bonds and a decrease in thiol group content with increasing PEGDA concentration. The mechanical properties were superior in hydrogels prepared using stoichiometric (1:1) ratios of the reagents, while mucoadhesiveness—tested on ovine vaginal tissue—was enhanced in samples with higher thiols-bearing PEMP content. Drug loading efficiency and release kinetics were evaluated for clindamycin phosphate and clotrimazole. Hydrophilic gels showed greater clindamycin loading and more sustained release compared to clotrimazole. Antimicrobial testing demonstrated that clindamycin-loaded hydrogels exhibited strong antibacterial activity against \u0000 <i>Staphylococcus aureus</i>\u0000 . Clotrimazole-loaded hydrogels showed less pronounced antifungal effects against \u0000 <i>Candida albicans</i>\u0000 . These findings highlight the applicability of PEGDA-PEMP hydrogels for mucoadhesive drug delivery and antimicrobial applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 43","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recycled-Polystyrene Reinforced Polyvinylidene Fluoride Membranes: Exploring Silicate Surface Modification for Vapor Passage During Saline Water Desalination","authors":"Ndamulelo N. Phosha,&nbsp;Xolile G. Fuku,&nbsp;Leonard Tijing,&nbsp;Machawe M. Motsa","doi":"10.1002/app.57646","DOIUrl":"https://doi.org/10.1002/app.57646","url":null,"abstract":"<p>This work describes developing, characterizing, and evaluating porous hydrophobic membranes for hard groundwater and seawater desalination. The hydrophobic membranes were prepared from polyvinylidene fluoride (PVDF) blended with triacetin, expanded polystyrene (EPS), and activated carbon. Membrane structural analysis with electron microscopy revealed a dual cross-sectional structure of elongated and narrow macro voids terminated by a spongy sub-structure. Further surface modification with silicone oil resulted in a significant increase in surface hydrophobicity to 120.14 (±5.27)°. Modification also led to an increase in surface pores, which led to a better permeate flux of 3.66 kg/m²h compared to the permeate flux of the pristine membrane of 0.67 kg/m²h. This increased flux can be explained by the improved surface porosity that enhanced vapor permeability, resulting in increased permeate flux. The membranes recorded over 99% salt rejection for both hard groundwater and seawater, which is acceptable for membrane distillation. Trace concentrations of Na, Cl, and Mg were detected on the active layer after seawater desalination, indicating the breakthrough of these ions and possible pore wetting. The main constituents of the foulants on the support layer were composed of sulfur (S) and silicon (Si).</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 43","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57646","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism of Phosphorus-Silicone Synergistic Flame Retardant in Polyester: Enhancing Flame Retardant Performance Through Synergistic Flame Retardant Processes in Gas Phase and Condensed Phase","authors":"JiaWei Ren,&nbsp;Chao Zeng,&nbsp;Sheng Ming Zhang,&nbsp;Peng Ji,&nbsp;ChaoSheng Wang,&nbsp;HuaPing Wang","doi":"10.1002/app.57620","DOIUrl":"https://doi.org/10.1002/app.57620","url":null,"abstract":"<div>\u0000 \u0000 <p>The preparation of flame retardant and anti-dripping polyethylene terephthalate (PET) through phosphorus-silicone elements synergies is a common modification method. For different phosphorus flame retardant agents, there are also different synergistic mechanisms with silicone. In this work, the silicone flame retardant agent was added to diethyl phosphite modified flame retardant polyester (PET-ZDP), polyphosphate modified flame retardant polyester (PET-PPE), and (2-carboxyethyl)phenylphosphinic acid modified flame retardant copolymer polyester (FRPET). The results show that PET-PPE and FRPET are mainly gas phase flame retardant, and PET-ZDP has condensed phase flame retardant on the basis of gas phase flame retardant. There is a synergistic effect formed from silicone and PET-ZDP during the condensed phase flame retardant effect with dense and more graphitized residual carbon formed. The LOI of PET-ZDP has been increased from 30.6% to 32.6% and has a UL 94 rating of V-0. Through the study of the phosphorus-silicon flame retardant mechanism, new insights into the synergistic effect of silicone flame retardant agent with different phosphorus flame retardant agents have been put forward, which provides theoretical support for the development of industrial flame retardant and anti-dripping PET.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 42","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Shape Memory Poly(Aryl Ether Ketone) Composite Actuators With Light/Electric Synergistic-Triggered Deformations","authors":"Shuai Yang,&nbsp;Xiaoyun Yang,&nbsp;Zijian Song,&nbsp;Yingchun Li","doi":"10.1002/app.57627","DOIUrl":"https://doi.org/10.1002/app.57627","url":null,"abstract":"<div>\u0000 \u0000 <p>Herein, we report light/electric synergistic-triggered shape memory poly(aryl ether ketone) (PAEK) composite actuators with enhanced shape memory behaviors that are able to fulfill the shape deformation process for various application opportunities. Composite actuators exhibit great shape memory behaviors with a high shape recovery ratio (95.1%–99.2%) and fixity ratio (over 96%). Besides, we construct light/electric synergistic-triggered shape memory behaviors, which are achieved through the prior softening of molecular chains by irradiating firstly, and then triggered by applied voltage. The shape recovery ratio of these light/electric synergistic-triggered shape memory effect (SME) reaches up to 89.6%, which is higher than the electric-triggered SME of 75.1%, indicating enhanced shape memory behaviors. As a comparison, we construct light/electric synchronous-triggered shape memory behaviors, and the recovery ratio is 85.8%. Due to the enhanced shape memory behaviors, these light/electric synergistic-triggered shape memory composite actuators fulfill the shape deformation process for various application opportunities.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 42","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Large-Scale Study Toward a Hybrid Treatment Approach for High-Strength Polyester Wastewater: A Computational and Experimental Study","authors":"Sahar Abdollahi Baghban","doi":"10.1002/app.57565","DOIUrl":"https://doi.org/10.1002/app.57565","url":null,"abstract":"<div>\u0000 \u0000 <p>This investigation deals with treating a high-strength wastewater with a high chemical oxidation demand (COD) of 110,000 (mg O₂/L) generated by industrial polyester plants through polycondensation reactions. The wastewater is characterized by GC–MS, zeta potential, COD, pH, and so forth. Hybrid strategies combining treatment methods, including distillation, advanced oxidation processes (photocatalysis: TiO₂ + UV, H₂O₂, ozone, KMnO₄, and electrical current), physical filtration, and carbon-active adsorption, are employed. The findings demonstrate that oxidation via KMnO₄ or H₂O₂ leads to a COD removal of 60%, while filtration and other oxidation methods suffer from the limitation of removal efficiency. A hybrid approach combining one-step distillation and carbon-active adsorption is introduced to gain an efficiency of 95%. The GC–MS analysis of the treated wastewater demonstrates that the reactive contaminants disappear through the esterification/transesterification reactions during treatment. The solubility parameter (<span></span><math>\u0000 \u0000 <semantics>\u0000 \u0000 <mrow>\u0000 \u0000 <mi>δ</mi>\u0000 </mrow>\u0000 </semantics>\u0000 </math>) calculated by molecular dynamic simulation indicates that pollutants with high <span></span><math>\u0000 \u0000 <semantics>\u0000 \u0000 <mrow>\u0000 \u0000 <mi>δ</mi>\u0000 </mrow>\u0000 </semantics>\u0000 </math> (18–19 (MPa)^0.5) (e.g., tetrahydrofuran-2-methyl) are the major contributors to the treated wastewater, whereas compounds with lower <span></span><math>\u0000 \u0000 <semantics>\u0000 \u0000 <mrow>\u0000 \u0000 <mi>δ</mi>\u0000 </mrow>\u0000 </semantics>\u0000 </math> (8–13 (MPa)^0.5) (e.g., 1-Heptene, 2-methyl-) are adsorbed on the carbon-active surface thermodynamically. Consequently, this attempt offers an insight into the nature of polyester wastewater and an integrated low-cost approach to treat this challenging effluent to ensure long-term environmental sustainability.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 40","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and Evaluation of Pemetrexed Disodium Transdermal Patches Using a DoE Approach","authors":"Tejpal Yadav,&nbsp;Hemant Kumar Singh Yadav,&nbsp;Ritu Gilhotra","doi":"10.1002/app.57618","DOIUrl":"https://doi.org/10.1002/app.57618","url":null,"abstract":"<div>\u0000 \u0000 <p>Pemetrexed disodium, a multi-targeted antifolate, exhibits significant therapeutic potential for autoimmune diseases and cancers. However, its clinical application remains restricted due to poor oral bioavailability and severe systemic side effects. Transdermal drug delivery serves as a non-invasive alternative that enhances localized drug action while minimizing systemic toxicity. This study develops and optimizes pemetrexed disodium-loaded transdermal patches using hydrophilic polymers, including α-tocopherol polyethylene glycol succinate and hydroxypropyl methylcellulose, to achieve controlled drug release while reducing systemic side effects. The solvent casting technique fabricates the transdermal patches, incorporating <i>aloe vera</i> gel as a permeation enhancer and polyethylene glycol 400 as a plasticizer. A Box–Behnken design optimizes formulation variables such as polymer concentration and temperature, assessing their effects on viscosity, patch thickness, and zeta potential. Characterization studies include physicochemical evaluation, in vitro drug release analysis, and scanning electron microscopy for surface morphology assessment. Drug release kinetics follow zero-order, Higuchi, and Korsmeyer-Peppas models. The optimized patches exhibit favorable mechanical properties, pH compatibility (5.2–5.6), tensile strength (9.4–12.2 kg/cm²), and folding endurance (&gt; 60 folds). In vitro studies confirm sustained drug release, with formulations OF4 and OF5 demonstrating superior efficiency. SEM analysis reveals a uniform, defect-free surface. These transdermal patches offer a promising alternative for managing autoimmune diseases like psoriasis, with further in vivo studies needed for clinical validation.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 42","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the Mechanism of Scale Inhibitors and Development of Enhanced Scale Inhibition Technology","authors":"Yulun Xiao,&nbsp;Dajun Ren,&nbsp;Tengfei Liu,&nbsp;Zhen Wang,&nbsp;Min Ruan,&nbsp;Jun Xu,&nbsp;Shuqin Zhang,&nbsp;Xiaoqing Zhang,&nbsp;Xiangyi Gong,&nbsp;Wangsheng Chen,&nbsp;Baoshan Wang","doi":"10.1002/app.57652","DOIUrl":"https://doi.org/10.1002/app.57652","url":null,"abstract":"<div>\u0000 \u0000 <p>In order to effectively solve the problem of membrane fouling, scale inhibitors are often used for scale inhibition. However, the scale inhibition mechanism of scale inhibitors has not been clearly explained, and the scale inhibition effect is not consistent with expectations. Therefore, a molecular dynamics (MD) method was used to analyze the scale inhibition mechanism of TPEG-IA-AMPS (isopentenol polyoxyethylene itaconic acid-2-acrylamide-2-methylpropanesulfonic acid) and to develop the enhanced scale inhibition technology. Meanwhile, scanning electron microscope (SEM) and x-ray diffraction (XRD) were applied to analyze the mechanism of the enhanced scale inhibition technology. The results showed that TPEG-IA-AMPS occupied the active growth sites of calcite crystals and calcium sulfate dihydrate crystals, inhibited the growth of the crystal surface, and achieved the scale inhibition effect. In addition, the enhanced scale inhibition technology can effectively solve the reverse osmosis membrane fouling problem with reduced scale inhibitor dosage, and the scale inhibition rate of calcium carbonate in reverse osmosis concentrated brine was 93.1%, and the scale inhibition rate of calcium sulfate was 97.67%.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 43","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}