IF 4.6 2区化学

Polymer Pub Date : 2024-12-05 DOI: 10.1016/j.polymer.2024.127929

Zhanyan Du, Zhihan Yan, Yanan Guo, Ruixi Ye, Akou Techougue, Yurong Li, Guozheng Zhang, Yeshun Zhang

引用次数: 0

Coupling of shear rheology and SAXS of rubber-carbon black nanocomposites

IF 4.6 2区化学

Polymer Pub Date : 2024-12-05 DOI: 10.1016/j.polymer.2024.127927

Numera Shafqat, Anne-Caroline Genix, Carole-Ann Charles, Thomas Bizien, Radosław Kozak, Clément Robin, Julian Oberdisse

{"title":"Coupling of shear rheology and SAXS of rubber-carbon black nanocomposites","authors":"Numera Shafqat, Anne-Caroline Genix, Carole-Ann Charles, Thomas Bizien, Radosław Kozak, Clément Robin, Julian Oberdisse","doi":"10.1016/j.polymer.2024.127927","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127927","url":null,"abstract":"A combined SAXS-shear analysis of polymer nanocomposites for the first time between parallel plates is presented. This set-up allows investigating microstructural changes accompanying macroscopic rheological phenomena, such as the Payne effect. The latter is known to induce filler network destruction and subsequent flocculation when the shear strain amplitude is increased or decreased, respectively. First, a detailed SAXS analysis of the microstructure of carbon black in styrene-butadiene nanocomposites is applied to a series of increasing filler loading. The average size and mass of primary particles and small aggregates are estimated using a model of inter-aggregate polydisperse hard-sphere interactions. In a second time, the impact of a new geometry of the shear experiments with a horizontal X-ray beam passing through a disc-shaped nanocomposite on the SAXS pattern is analyzed in terms of sample heterogeneity (different positions), anisotropy (orientations), and sample thickness (transmission and heterogeneity). Application of our quantitative analysis shows that hot molding induces a slight anisotropy of the aggregate shapes into prolate ellipsoids oriented parallel to the rubber sheet. The Payne effect is then followed by scattering, surprisingly showing no modification of the intensity under oscillatory shear. Thus, the aggregate structure observed on the scale of standard SAXS is not broken up during Payne experiments, hinting at either an averaging effect over oscillation periods, or to the reorganization of large-scale agglomerate or network structures.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"37 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strengthening polyacrylonitrile-based carbon nanofibers via a hydrolysis-induced low-energy-barrier cyclization reaction

IF 4.6 2区化学

Polymer Pub Date : 2024-12-05 DOI: 10.1016/j.polymer.2024.127930

Xin Gao, Jiangqian Sun, Kunpeng Li, Xianfeng Wang, Jianyong Yu, Bin Ding, Xiaohua Zhang

{"title":"Strengthening polyacrylonitrile-based carbon nanofibers via a hydrolysis-induced low-energy-barrier cyclization reaction","authors":"Xin Gao, Jiangqian Sun, Kunpeng Li, Xianfeng Wang, Jianyong Yu, Bin Ding, Xiaohua Zhang","doi":"10.1016/j.polymer.2024.127930","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127930","url":null,"abstract":"Electrospun polyacrylonitrile (PAN) nanofibers have been widely used as a precursor to fabricate high-quality carbon nanofibers (CNFs). However, the low degree of cyclization and breakage of fibers during the stabilization process severely restrict the mechanical properties of the final CNFs. In this work, we propose a novel strategy to enhance the cyclization by introducing carboxyl groups via hydrolysis. This treatment significantly reduces the cyclization energy barrier by facilitating an ionic pathway rather than a radical pathway. As a result, the degree of stabilization effectively increases from ∼45% to over 60%. Simultaneously, the cyclization temperature also reduces from 288 to 260 °C, corresponding to a gentler cyclization reaction, that can avoid stress concentration and thus eliminate the fiber breakage during heat treatments. These features lead to a remarkable enhancement on the tensile strength for CNF films, from 26.0 to 70.4 MPa. This hydrolysis-based stabilization optimization provides a straightforward method to strengthen CNFs, thereby extending their applications.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"19 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142782666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of double-shell microcapsule containing MOF as the curing agent of epoxy resin

IF 4.6 2区化学

Polymer Pub Date : 2024-12-05 DOI: 10.1016/j.polymer.2024.127924

Mingyang Zhao, Xiao-Min Li, Junkuo Gao

{"title":"Synthesis of double-shell microcapsule containing MOF as the curing agent of epoxy resin","authors":"Mingyang Zhao, Xiao-Min Li, Junkuo Gao","doi":"10.1016/j.polymer.2024.127924","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127924","url":null,"abstract":"Microcapsule-type curing agents that have a single polymer shell encounter challenges due to the inadequate airtightness of the shell material, which affects the storage stability of the epoxy resin (EP) once it has been mixed. In this work, a microcapsule-type latent curing agent with an extended storage period was successfully prepared by introducing a metal-organic framework (MOF) as its second-layer shell. Imidazole (Im), as a curing agent, was initially encapsulated in polyurethane (PU) via the interfacial polymerization to form the single-shell microcapsule (Im@PU), in which different morphologies and core contents (IPM1-7) were obtained by adjusting the mass ratio of the core to shell. The optimal formulation, designated as IPM2, was determined due to its smooth surface and uniform size distribution. Subsequently, ZIF-8 was co-coordinated and grown on the surface of IPM2 to form a double-shell microcapsule-type curing agent (Im@PU@ZIF-8). The Im@PU@ZIF-8 exhibits delayed kinetic behaviors and enhanced storage stability. Notably, the Im@PU@ZIF-8 can be reliably stored for over 35 days at 40 °C. Meanwhile, the shell material ZIF-8 can be employed as a functional filler to enhance the mechanical properties of epoxy composites. This feasible strategy develops innovative ideas for the EP-latent curing agent systems and aims to establish a general method.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"27 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142782860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ionic covalent organic framework based quasi-solid-state electrolyte for high-performance lithium metal battery

IF 4.6 2区化学

Polymer Pub Date : 2024-12-04 DOI: 10.1016/j.polymer.2024.127911

Xueling Tan, Juanqi Zhong, Yongfen Tong, Lin Guo, Yu Xie, Jinsheng Zhao

{"title":"Ionic covalent organic framework based quasi-solid-state electrolyte for high-performance lithium metal battery","authors":"Xueling Tan, Juanqi Zhong, Yongfen Tong, Lin Guo, Yu Xie, Jinsheng Zhao","doi":"10.1016/j.polymer.2024.127911","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127911","url":null,"abstract":"Lithium metal solid-state batteries are promising as rechargeable energy storage devices due to their non-combustible nature, resistance to high temperatures, and non-corrosive properties. However, their widespread application is hindered by low lithium-ion conductivity and poor compatibility at the electrode/electrolyte interface. To address these challenges, two covalent organic frameworks (COFs), one with functional imidazolium groups (Dha-COFim) and one without (Dha-COF), were synthesized. Ionic liquids (ILs) were then incorporated into these COFs to create quasi-solid-state electrolytes (Dha-COFim-IL and Dha-COF-IL). The Dha-COFim, with its ordered porous structure, forms interconnected ion channels that enable fast lithium-ion transport and enhance lithium salt dissociation, achieving excellent thermal stability, high ionic conductivity (1.74 × 10⁻³ S cm⁻1), and a wide electrochemical window at room temperature. Density functional theory (DFT) calculations showed that the fixed imidazolium groups in Dha-COFim enhance interactions with TFSI⁻ anions, improving lithium salt dissociation. This allows free lithium ions to move quickly through the channels with minimal energy loss. Additionally, the formation of a stable SEI layer rich in LiF and Li3N at the lithium metal/electrolyte interface accelerates Li⁺transport, ensuring uniform lithium deposition and superior battery performance. When combined with a LiFePO4 cathode, the LiFePO4‖Dha-COFim-IL‖Li cell delivers high discharge capacity and excellent cycling stability, providing a new strategy for designing quasi-solid-state electrolytes for high-energy-density lithium batteries.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"27 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crystallization and multiple melting behavior of oriented thick lamellae in isotactic polypropylene

IF 4.6 2区化学

Polymer Pub Date : 2024-12-04 DOI: 10.1016/j.polymer.2024.127912

Shu-Gui Yang, Liang-Qing Zhang, Zheng-Yang Zhang, Jun Lei

{"title":"Crystallization and multiple melting behavior of oriented thick lamellae in isotactic polypropylene","authors":"Shu-Gui Yang, Liang-Qing Zhang, Zheng-Yang Zhang, Jun Lei","doi":"10.1016/j.polymer.2024.127912","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127912","url":null,"abstract":"The crystallization and melting of semicrystalline polymers are one of the most fundamental issues of polymer physics. However, how crystal orientation and thickness relate to the multiple melting behavior is not well understood. Here, well-oriented thick lamellae (22 ‒ 37 nm) have been produced in isotactic polypropylene (iPP) by crystallization under the combined effects of flow (30 s‒1) and pressure (50, 75, 100, 125 MPa). The melting of these oriented thick lamellae is followed by real-time wide- and small-angle X-ray scattering measurements. The results show that the melting of oriented thick lamellae of iPP follows the sequential melting model at the early stage, and then the melting of the entire lamellar stacks at high temperature. More importantly, the temperature dependence of the reciprocal lamellar thickness of these oriented thick lamellae is shown to follow the multistage model. A common melting line is obtained which coincides with that of the unoriented lamellae crystallized under quiescent conditions, giving an equilibrium melting temperature of 183 ºC and a folded surface free energy of <math></math> J/cm2. Somewhat unexpectedly, the oriented thick lamellae thicken continuously on the heating, whereas the relatively thin lamellae obtained from quiescent crystallization melt directly without thickening. This phenomenon is discussed in terms of the irreversible thermodynamic process of lamellar thickening. The present work sheds light on the crystallization and melting behavior of oriented thick lamellae in iPP, and generalizes the multistage model to iPP crystallized under external fields.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"80 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring thermal conductivity and printability in boron nitride/epoxy nano- and micro-composites for material extrusion 3D printing

IF 4.6 2区化学

Polymer Pub Date : 2024-12-03 DOI: 10.1016/j.polymer.2024.127899

Simone Bagatella, Luca Guida, Giacomo Scagnetti, Elisabetta Gariboldi, Marco Salina, Nadia Galimberti, Laura Castoldi, Marco Cavallaro, Raffaella Suriano, Marinella Levi

{"title":"Tailoring thermal conductivity and printability in boron nitride/epoxy nano- and micro-composites for material extrusion 3D printing","authors":"Simone Bagatella, Luca Guida, Giacomo Scagnetti, Elisabetta Gariboldi, Marco Salina, Nadia Galimberti, Laura Castoldi, Marco Cavallaro, Raffaella Suriano, Marinella Levi","doi":"10.1016/j.polymer.2024.127899","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127899","url":null,"abstract":"This study explores the design and characterization of boron nitride (BN)/epoxy nano- and micro-composites, utilizing material extrusion 3D printing as a powerful technique to align filler particles within the matrix and produce effective thermally conductive and electrically insulating adhesive materials with possible applications in electronics. Investigating the uncharted correlation between filler morphology, including both boron nitride microplatelets (BNMP) and boron nitride nanosheets (BNNS), processability by additive manufacturing (AM), and ink functionalities, BNMP proves more effective in boosting thermal conductivity, with an enhancement of up to 400%. Fillers, that can be highly oriented through material extrusion, contribute to achieving high glass transition temperature (up to 137 °C) and thermal resistance, expanding the inks’ applicability. Optimized inks demonstrate exceptional shape fidelity, enabling the fabrication of complex structures. The findings emphasize the crucial role of ceramic filler content and morphology in optimizing multifunctional 3D-printed materials' performance and tailoring their properties, offering insights for future innovations in electronic materials and manufacturing methodologies for thermal management applications.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"7 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142760385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urea Formaldehyde Resin Used as Plugging Agent in Fractured and Caved Reservoirs: Preparation, Optimization and Modification

IF 4.6 2区化学

Polymer Pub Date : 2024-12-03 DOI: 10.1016/j.polymer.2024.127901

Jinhua Huo, Xu Liu, Jie Zhao, Xing Zhang, Siman Zhang, Chenxi Wei

{"title":"Urea Formaldehyde Resin Used as Plugging Agent in Fractured and Caved Reservoirs: Preparation, Optimization and Modification","authors":"Jinhua Huo, Xu Liu, Jie Zhao, Xing Zhang, Siman Zhang, Chenxi Wei","doi":"10.1016/j.polymer.2024.127901","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127901","url":null,"abstract":"The resin-based plugging and adjustment system is one of the effective methods to improve oil recovery attribute to their ability to generate insoluble and immiscible Polymer materials with high strength, excellent temperature and salt resistance. The urea formaldehyde resin (Poly-UF) was prepared firstly, then, the melamine was introduced into Poly-UF to synthesize melamine resin (Poly-UF-m), and the preparation technical parameters were further established depends on single factor experimental method. As a result, the performances of Poly-UF-m were enhanced, the free formaldehyde content is reduced by 47.15 %, the solid content and viscosity are increased by 3.47 and 37.93%. Based on the preparation and investigation of Poly-UF and Poly-UF-m, the 0.01 wt% HPAM, 4 wt% NH4Cl solution (25 wt%), 3 wt% nano-SiO2 and 0.3 wt% C6H6O were introduced into Poly-UF-m to prepare resin plugging agent. As a result, it was confirmed that the Poly-UF-m plugging agent with excellent application properties, such as well temperature, shear, salt, water, kerosene, acid and alkali resistance. Moreover, the Poly-UF-m plugging agent with a denser structure, smoother surface, higher mechanical strength, smaller pores and better thermal stability. Furthermore, based on the core plugging experiments, the quartz sand as the simulation object for permeable rock core, and the results show that the plugging rate is 98.0% by adding 20 wt% Poly-UF-m plugging agent to quartz sand, which indicates that the developed Poly-UF-m plugging agent has a good sealing effect on fractured and caved reservoirs.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"45 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142760752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of a Tungsten Trioxide Modified Smart-Polymers as a NIR-Responsive Platform for Photo-Thermal Therapy on Hepatocellular Cancer

IF 4.6 2区化学

Polymer Pub Date : 2024-12-02 DOI: 10.1016/j.polymer.2024.127898

Tara Mozaffarian, Hossein Attar, Homayon Ahmad Panahi, Elham Moniri

{"title":"Construction of a Tungsten Trioxide Modified Smart-Polymers as a NIR-Responsive Platform for Photo-Thermal Therapy on Hepatocellular Cancer","authors":"Tara Mozaffarian, Hossein Attar, Homayon Ahmad Panahi, Elham Moniri","doi":"10.1016/j.polymer.2024.127898","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127898","url":null,"abstract":"Cancer remains a predominant contributor to both mortality and morbidity on a global scale, with over 10 million new cases diagnosed annually. The aim of this work was to prepare and evaluate erlotinib hydrochloride loaded tungsten trioxide modified with smart polymers for their anticancer potential. The morphology, crystallinity, chemical bonding, and thermal behavior of the nanoadsorbent were characterized using field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and thermogravimetric analyses. The optimization of the drug on the synthesized adsorbent was investigated utilizing response surface methodology-central composite design. The maximum sorption efficiency of 90.18% was achieved at the initial drug concentration of 32.82 mg L-1, a pH of 8.17, a temperature of 32.93 °C, and a contact time of 16.08 min. The drug sorption process follows the Langmuir isotherm and it displays pseudo-first-order kinetics. The nanocarrier showed a significant release profile for 6 h with a maximum release percentage of 99.81% in simulated cancer fluid at high temperatures. The nanocarrier showed low drug release without near-infrared laser irradiation and a rapid release rate over 15 min of near-infrared laser irradiation. The drug release properties fit the Korsmeyer-Peppas model, with a diffusion exponent indicative of both diffusion and erosion release mechanisms. In-vitro cytotoxicity of the nanocarrier in normal cells indicated that it had no significant cytotoxicity. The cytotoxicity of the nanocarrier in Hep-G2 hepatocellular carcinoma cell lines was evaluated by MTT assay, and the data showed that the nanocarrier has excellent cytotoxic activity (75.45%).","PeriodicalId":405,"journal":{"name":"Polymer","volume":"8 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142760141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hollow conductive polypyrrole microtubes as microwave absorbents with good seawater corrosion resistance

IF 4.6 2区化学

Polymer Pub Date : 2024-12-02 DOI: 10.1016/j.polymer.2024.127900

Dongwei Xu, Mingju Zhang, Chao Wang, Zhihao Shen, Mengfei Wang, Jie Zhang, Ziang Han, Luyao Li, Xuhai Xiong, Ping Chen

{"title":"Hollow conductive polypyrrole microtubes as microwave absorbents with good seawater corrosion resistance","authors":"Dongwei Xu, Mingju Zhang, Chao Wang, Zhihao Shen, Mengfei Wang, Jie Zhang, Ziang Han, Luyao Li, Xuhai Xiong, Ping Chen","doi":"10.1016/j.polymer.2024.127900","DOIUrl":"https://doi.org/10.1016/j.polymer.2024.127900","url":null,"abstract":"Conductive polymers materials with hollow micro/nanostructure due to their special electrical properties and corrosion resistance have potential applications in microwave absorption, especially in marine environment. Herein, one-dimensional hollow conductive polypyrrole microtubes (H-PPyM) were prepared by in-situ polymerization of pyrrole monomer with methyl orange (MO) as soft template and FeCl3 as oxidant based on structural regulation strategy. The morphology and conductivity of H-PPyM can be easily controlled by adjusting the content proportion of MO. The results indicated that the surface morphology of polypyrrole changed from random granular to microtubular and the conductivity also gradually rose with the content increase of MO. When the content proportion of MO was 0.25 g, the obtained H-PPyM-0.25 composites possed notable microwave absorption capacity, simultaneously achieving ultrabroad effective absorption bandwidth (EAB, 6.7 GHz) and strong reflection loss value (RL, -33.6 dB) at a thickness of 2.6 mm with the filling content of only 10 wt.%, respectively. Furthermore, the corresponding H-PPyM-0.25 products soaked in corrosive medium (3.5 wt% NaCl solution) for one month still displayed stable tubular hollow structure and excellent microwave absorption performance with RLmin of -43.8 dB and EAB of 6.2 GHz. The research results can not only help to understand the relationship among the morphology and microwave absorption of PPy, but also open a new avenue for preparing excellent seawater corrosion resistant microwave absorption materials.","PeriodicalId":405,"journal":{"name":"Polymer","volume":"5 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142760756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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