International Journal of Polymer Analysis and Characterization最新文献_第10页

Investigation of thermal, mechanical and dielectrical properties of LiYO2 filled poly(lactic acid) nanocomposites LiYO2填充聚乳酸纳米复合材料的热、力学和介电性能研究

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-11-01 DOI: 10.1080/1023666X.2022.2123575

Subbegowda Shruthi , Vinayakprasanna N. Hegde , Jayaprakash Jayashankar , Chimatahalli Shanthakumar Karthik , Kalappa Prashantha , Puttaswamappa Mallu

{"title":"Investigation of thermal, mechanical and dielectrical properties of LiYO2 filled poly(lactic acid) nanocomposites","authors":"Subbegowda Shruthi , Vinayakprasanna N. Hegde , Jayaprakash Jayashankar , Chimatahalli Shanthakumar Karthik , Kalappa Prashantha , Puttaswamappa Mallu","doi":"10.1080/1023666X.2022.2123575","DOIUrl":"10.1080/1023666X.2022.2123575","url":null,"abstract":"<div><p>In recent years, the development of portable electronic devices has increased considerably. Polymers and polymer composites are employed in a variety of industries, from structural materials to electronics, as well as in our daily lives. PLA@LiYO<sub>2</sub> nanocomposites films were subsequently fabricated by a simple solution casting at various concentrations for the development of electronic materials. The effective doping and homogeneous dispersion of nanoparticles in PLA polymer is characterized by X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), Fourier Transform InfraRed (FTIR) spectrophotometer, Differential scanning calorimetry (DSC), Thermogravimetric analysis (TGA), elastic and dielectric properties of PLA composites films. XRD analysis showed that the crystalline characteristics of the nanocomposites increases with increase in dopant concentration. The FTIR absorption spectra of neat PLA and PLA@LiYO<sub>2</sub> nanocomposites are almost equivalent to each other, from TGA analysis there will be less percentage of weight loss in the composite’s films as the concentration of the nanocomposites increased into PLA matrix, Moreover, a significant increase in Tg with an increase in NPs content from 0 to 4 wt% was also observed, the different elastic moduli such as E, K and G of PLA + LiYO<sub>2</sub> films are indirectly proportional to the addition of LiYO<sub>2</sub> in to PLA matrix. The doped PLA nanocomposites exhibit unique negative dielectric constant and AC conductivity.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87125767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Studies on phosphorous based acrylate vinyl ester resin 磷基丙烯酸乙烯酯树脂的研究

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-11-01 DOI: 10.1080/1023666X.2022.2115216

V.R. Sevkani , R.H. Patel

引用次数: 0

Natural film based on collagen and sulfated polysaccharide for antiplatelet effects 基于胶原蛋白和硫酸多糖的天然膜抗血小板作用

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-10-01 DOI: 10.1080/1023666X.2022.2103240

Ana Angélica Mathias Macêdo , Sônia Duarte Figueiró , Júlio César Góes Ferreira , Márcia Rúbia Silva Melo , Ana Lúcia Ponte Freitas , Antônio Sérgio Bezerra Sombra , Beatriz da Silva Batista , Romicy rmondes De Souza , Rafael Mendonça Almeida , Fernando Mendes , Renato de Azevedo Moreira

{"title":"Natural film based on collagen and sulfated polysaccharide for antiplatelet effects","authors":"Ana Angélica Mathias Macêdo , Sônia Duarte Figueiró , Júlio César Góes Ferreira , Márcia Rúbia Silva Melo , Ana Lúcia Ponte Freitas , Antônio Sérgio Bezerra Sombra , Beatriz da Silva Batista , Romicy rmondes De Souza , Rafael Mendonça Almeida , Fernando Mendes , Renato de Azevedo Moreira","doi":"10.1080/1023666X.2022.2103240","DOIUrl":"10.1080/1023666X.2022.2103240","url":null,"abstract":"<div><p>Although several properties of collagen have been explored, the blend formation with sulfated polymers is poorly explored. Antiplatelet effects can be achieved after the formation of this type of blend. In this work, a film formed by collagen and sulfated polysaccharide and their properties were analyzed. Five blends were produced, blend with collagen (10 mg/g) and 0, 5, 10, 20, and 25% of the sulfated polysaccharide. No changes amine (I, II, and III) vibrations alterations were observed, where the collagen structure remained unchanged. In addition, it was also observed the presence of sulfoxide groups related to the presence of sulfated polysaccharides. The samples have the same thermal degradation profile. Additionally, the stability of the film is up to 100 °C, characterized by the loss of water from the structure caused by the break-up of the blend. Also, it was verified that the adhesion of platelets to the collagen decreases with the presence of sulfated polysaccharide. The synthesized material presents a potential for application as an anti-thrombogenic agent, besides being biodegradable and biocompatible.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78403741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent developments in composite reinforcement using date palm fibers for improved performance through physical and chemical modifications 利用椰枣纤维通过物理和化学改性提高性能的复合材料增强材料的最新发展

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-10-01 DOI: 10.1080/1023666X.2022.2110088

Helanka Perera , Hussaina Banu

{"title":"Recent developments in composite reinforcement using date palm fibers for improved performance through physical and chemical modifications","authors":"Helanka Perera , Hussaina Banu","doi":"10.1080/1023666X.2022.2110088","DOIUrl":"10.1080/1023666X.2022.2110088","url":null,"abstract":"<div><p>Recently, there has been a growing interest in novel technologies dealing with environmental aspects that leads us to effective utilization of the available natural resources and better waste management strategies. The last few decades have witnessed the application of several natural fibers in composite industries ensuing relatively high strength polymer composites, which are promising eco-friendly alternative to man-made synthetic composites. Especially, Date Palm fibers (DPF) are of specific interest, as they possess desirable properties such as light weight and low density, superior mechanical strength and thermal conductivity, and are considered as very good substitutes for synthetic composites. There are several earlier research on DPF as fillers for polymer reinforcement. However, there is an insufficient comprehensive and comparative study of various DPF reinforced polymer composites, which will assist the scientists to expand their knowledge on the fabrication of surface modified DPF for effective polymer reinforcements. This review provides a summary of the surface microstructure, highly polar chemical nature of fiber, required surface modifications that will enhance the interfacial bonding of fiber to the polymer matrix and a critical in-depth analysis of the different types of DPF composites and their physico-mechanical and thermal properties.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80972481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Rheological investigation of polymer hydrogels for industrial application: a review 工业用聚合物水凝胶流变学研究综述

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-10-01 DOI: 10.1080/1023666X.2022.2105876

Tanzil Ur Rehman , Luqman Ali Shah

{"title":"Rheological investigation of polymer hydrogels for industrial application: a review","authors":"Tanzil Ur Rehman , Luqman Ali Shah","doi":"10.1080/1023666X.2022.2105876","DOIUrl":"10.1080/1023666X.2022.2105876","url":null,"abstract":"<div><p>Hydrogels are 3 D cross-linked networking of polymeric materials having the capacity to absorb a tremendous amount of water within the network. Many techniques have been introduced for the characterization of synthesized gels. Most common are the spectroscopic methods (UV/Vis, FTIR) used at the molecular and atomic level, diffraction method (XRD) used for measurement of crystallinity within the structure, microscopy (SEM, TEM) to know about the surface texture and morphology and rheology for the elucidation of viscoelastic behavior of hydrogels. Many industries especially pharmaceutical, cosmetic, food processing, agriculture, water treatment, and other related research fields are directly dependent on the rheological characterization of hydrogels for their possible and related application. Similarly, the final design of the product also depends on characterization at a microscopic level to understand the structure and type of interaction within the hydrogel network and its behavior toward the applied external forces. In the present review paper, we have focused on and tried to grip the rheology of synthetic, natural, and semi synthetics hydrogels-based materials and their application in daily life on an industrial scale.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72801317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Investigation of fluorescence enhancement and antibacterial properties of nitrogen-doped carbonized polymer nanomaterials (N-CPNs) 氮掺杂碳化聚合物纳米材料(N-CPNs)的荧光增强及抗菌性能研究

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-10-01 DOI: 10.1080/1023666X.2022.2110122

Midhun Saji , Biya Elsa Saji , Neethu Joseph , Aleena Ann Mathew , Elcey C. Daniel , Manoj Balachandran

{"title":"Investigation of fluorescence enhancement and antibacterial properties of nitrogen-doped carbonized polymer nanomaterials (N-CPNs)","authors":"Midhun Saji , Biya Elsa Saji , Neethu Joseph , Aleena Ann Mathew , Elcey C. Daniel , Manoj Balachandran","doi":"10.1080/1023666X.2022.2110122","DOIUrl":"10.1080/1023666X.2022.2110122","url":null,"abstract":"<div><p>Carbonized Polymer Nanomaterials (CPNs) have acquired substantial research interest in recent years due to their budding applications in various optical and electrochemical studies like electrocatalysis, solar cells, biosensing, etc. Due to their stability and toxicity, the enhancement of CPNs' properties was the primary cause of concern. Herein, we synthesized Nitrogen-doped (N-doped) N-CPNs using the one-step hydrothermal approach of PVA and PVDF polymers with Nitric acid (HNO<sub>3</sub>) as the nitrogen source. The luminescence intensity was observed to be enhanced by increasing nitrogen doping concentration. The synthesized fluorescent samples exhibited significant antibacterial properties, making them useful in biomarkers, sensing strategies, drug delivery, etc. Doped PVA samples exhibited negligible antibacterial activity, but nitrogen-doped PVDF samples displayed considerable biocidal activity against gram-positive bacteria, according to antibacterial research. Each sample's growth inhibition was distinct and species-specific.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81452741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Branching analysis of β-cyclodextrin-based poly(N-isopropylacrylamide) star polymers using triple detection SEC 基于β-环糊精的聚(n-异丙基丙烯酰胺)星形聚合物的支化分析

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-10-01 DOI: 10.1080/1023666X.2022.2110133

Artjom Herberg , Dirk Kuckling

{"title":"Branching analysis of β-cyclodextrin-based poly(N-isopropylacrylamide) star polymers using triple detection SEC","authors":"Artjom Herberg , Dirk Kuckling","doi":"10.1080/1023666X.2022.2110133","DOIUrl":"10.1080/1023666X.2022.2110133","url":null,"abstract":"<div><p>For the first time, poly(<em>N</em>-isopropylacrylamide) (PNIPAAm) star polymers with a β-cyclodextrin core are characterized in detail by size-exclusion chromatography (SEC) with triple detection to experimentally verify the number of arms. A combination of a refractive index detector, multi-angle laser light scattering detector, and an online-viscosimeter was used for branching analysis. At first, the SEC system was calibrated and the detector setup was validated using linear polystyrene reference polymers. The applicability of the established triple detection SEC for branching analysis was shown by the analysis of two commercially available polystyrene star polymers. Due to the high molar masses of the star polymers, both the contraction ratio <em>g</em> and <em>g</em>′ could be determined independently, thus allowing the calculation of the viscosity shielding ratio <em>ε</em>. Finally, the branching analysis of the PNIPAAm star polymers could experimentally confirm the assumed arm number of up to 21 arms. Moreover, an increasingly compact molecular structure and the influence of the arm number on the viscosity shielding ratio could be shown.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78467122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

BaTiO3-assisted rGO-based flexible thin films for energy storage applications 用于储能应用的batio3辅助rgo基柔性薄膜

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-10-01 DOI: 10.1080/1023666X.2022.2112095

Saira Ishaq , Farah Kanwal , Shahid Atiq , Ghulam Muhammad Mustafa , Umar Azhar

{"title":"BaTiO3-assisted rGO-based flexible thin films for energy storage applications","authors":"Saira Ishaq , Farah Kanwal , Shahid Atiq , Ghulam Muhammad Mustafa , Umar Azhar","doi":"10.1080/1023666X.2022.2112095","DOIUrl":"10.1080/1023666X.2022.2112095","url":null,"abstract":"<div><p>Flexible dielectric materials are widely explored and used for energy storage applications. In this paper, we present a research work on the development of new flexible dielectric films by combining poly(vinyl alcohol) (PVA) used as flexible polymer matrix and reduced grapheme oxide (rGO) and barium titanate (BaT) added in different ratios to tailor their capacitance. The properties of resultant nanocomposite films have been tailored based on the properties of their constituents; flexibility of the PVA, high thermal stability better dielectric properties due to both fillers i.e., rGO and BaT. The synthesized nanocomposite films prepared by different ratio of these three components were characterized for their structural, chemical, morphological, thermal, and dielectric properties. Their dielectric studies carried using impedance analyzer at room temperature revealed that nanocomposite with rGO:barium titanate:poly(vinyl alcohol) = 0.3:2.5:10 shows excellent real part of permittivity of 66 at 20 Hz which decreased to 10.9 at very high frequency of 2 MHz and low energy loss of 0.8 at 20 Hz which was reduced to 0.06 at 2 MHz. Also energy storage capacity of nanocomposites was calculated, and it was found that rGO:barium titanate:poly(vinyl alcohol) = 0.3:1:10 showed best energy storing properties with total energy density, recoverable energy density, and energy loss of 2.1 × 10<sup>−4</sup> kJ/m<sup>3</sup>, 1.5 × 10<sup>−4</sup> kJ/m<sup>3</sup>, and 5.2 × 10<sup>−5</sup> kJ/m<sup>3</sup>. Its efficiency was 71%. The presented synthesized flexible dielectric films with tailorable dielectric performances are very desirable for flexible capacitor sensing application due to their excellent flexibility, efficient thermal, and dielectric properties.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84295591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of boehmite alumina nanoparticles on the physical and chemical characteristics of eco-friendly sodium alginate/polyvinyl alcohol bio-nanocomposite film 薄水铝石纳米颗粒对环保型海藻酸钠/聚乙烯醇生物纳米复合膜理化特性的影响

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-05-04 DOI: 10.1080/1023666X.2022.2061749

Dipjyoti Bora, J. Jayaramudu, P. Saikia, Ramesh C. Bohra, Lachit Phukan, P. S, S. Ray, E. R. Sadiku

{"title":"Effect of boehmite alumina nanoparticles on the physical and chemical characteristics of eco-friendly sodium alginate/polyvinyl alcohol bio-nanocomposite film","authors":"Dipjyoti Bora, J. Jayaramudu, P. Saikia, Ramesh C. Bohra, Lachit Phukan, P. S, S. Ray, E. R. Sadiku","doi":"10.1080/1023666X.2022.2061749","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2061749","url":null,"abstract":"Abstract In the present work, bio-nanocomposite films of sodium alginate/polyvinyl alcohol (SA/PVA) blend with different loadings of boehmite alumina (BA) nanoparticles were developed via the film-casting technique. The bio-nanocomposite films obtained, containing boehmite alumina nanoparticles, are highly transparent and eco-friendly. The morphological characterization, by using TEM, AFM and SEM, indicate the fact that the BA nanoparticles showed a homogeneous dispersion at low BA loading, with rod-like features and plates with cubic crystal shapes morphology. Conversely, BA agglomeration was observed at higher BA loading. The mechanical properties indicate improvements in the tensile strength and elongation-at-break and flexibility in the 3 wt% BA nanoparticles loading. This (3 wt%) is stable with homogeneous dispersion of BA nanoparticles in the SA/PVA blend matrix, which is confirmed by SEM and TEM analysis. Additionally, the contact angle of the blend matrix was observed to be 34.7° and with the incorporation of boehmite alumina (BA) of between 3 to 9 wt % to the hydrophilic blend matrix, the results in contact angles of the nanocomposite films in increasing hydrophobic order of 47.9–67.9°, respectively. Furthermore, the incorporation of BA nanoparticles shows that the SA/PVA blend matrix have desirable thermal stability. From the present study, the novel ternary SA/PVA/BA bio-nanocomposite films could be a potential candidate to be used in the fields of biomedical (such as wound healing) and packaging applications.","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90184200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel high performance poly(sulfone-ether-amide-imide)s 新型高性能聚砜醚酰胺亚胺

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2022-04-19 DOI: 10.1080/1023666X.2022.2062155

Sajjad Nazemzadeh, S. Mehdipour‐Ataei

{"title":"Novel high performance poly(sulfone-ether-amide-imide)s","authors":"Sajjad Nazemzadeh, S. Mehdipour‐Ataei","doi":"10.1080/1023666X.2022.2062155","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2062155","url":null,"abstract":"Abstract A novel sulfone ether amide diamine was prepared through a two-step synthetic route. At first, 3,3′-((sulfonyl bis(1,4-phenylene))bis(oxy))dianiline was prepared from nucleophilic aromatic substitution reaction of 3-aminophenol with 4,4′-dichlorodiphenyl sulfone in the presence of K2CO3. In the second step, the reaction of this compound with isophthaloyl chloride resulted in the preparation of a unique aromatic diamine containing amide, ether, and sulfone groups. Then three different kinds of poly(sulfone-ether-amide-imide)s were prepared via polycondensation reaction of the synthesized diamine with different dianhydrides including pyromellitic dianhydride, benzophenonetetracarboxylic dianhydride, and hexafluoroisopropylidene diphthalic anhydride. The structures of synthesized precursors, monomer, and prepared polymers were characterized using elemental analysis, 1H-NMR and FT-IR spectroscopy methods. Inherent viscosity, molecular weight, thermal behavior and stability, flame retardancy, and solubility of polymers were studied. As the polymers showed high thermal stability and also improved solubility, they can be used as heat and fire resistant materials.","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85620978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0