Journal of Polymer Research最新文献_第2页

Crystallization, thermal, and mechanical properties of ethylene-propylene block copolymer/random copolymer blends

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-24 DOI: 10.1007/s10965-025-04337-9

Xia Hua, Qiaonan Xue, Yuzhuo Zhao, Li-Zhi Liu, Yuanxia Wang, Ying Shi, Qi Zhang, Ying Qiu

{"title":"Crystallization, thermal, and mechanical properties of ethylene-propylene block copolymer/random copolymer blends","authors":"Xia Hua, Qiaonan Xue, Yuzhuo Zhao, Li-Zhi Liu, Yuanxia Wang, Ying Shi, Qi Zhang, Ying Qiu","doi":"10.1007/s10965-025-04337-9","DOIUrl":"10.1007/s10965-025-04337-9","url":null,"abstract":"<div><p>The development of ethylene-propylene block copolymers (PP-b-PE) via chain-shuttling catalysis technology presents new opportunities for polyolefin modification, offering advantages over conventional ethylene-propylene random copolymers (EPC). However, the synergistic effects and property optimization in PP-b-PE/EPC blend systems remain insufficiently understood, particularly concerning crystallization behavior and phase morphology. This study systematically investigates the crystallization, phase structure, and mechanical properties of PP-b-PE/EPC blends with varying compositions using differential scanning calorimetry (DSC), synchrotron X-ray scattering (SAXS/WAXD), scanning electron microscopy (SEM), polarized optical microscopy (POM), and mechanical testing. DSC analysis reveals complex melting behavior and enhanced crystallization attributed to nucleation effects, notably in the 10:90 blend. SAXS results show PP-b-PE-rich blends maintain a dominant PE lamellar structure with a long period of approximately 18.47 nm, while intermediate compositions exhibit dual PE and PP lamellar structures. WAXD confirms the formation of both α and γ crystal forms, with the γ-phase becoming particularly prominent at the 50:50 blend ratio, corresponding to optimal impact strength (18.60 kJ/m<sup>2</sup>). These findings elucidate the interplay between composition, crystallization, and properties, providing valuable insights into structure–property relationships in polyolefin blends and advancing the development of high-performance materials through synergistic interactions and strategic composition control.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 multicarboxylic hyperbranched polyglycerol (HPG) modified monodisperse superparamagnetic poly (glycidyl methacrylate) microspheres for capable dye adsorption

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-22 DOI: 10.1007/s10965-025-04269-4

Hengbo Lei, Xiang Cao, Yuguo Tang

{"title":"Synthesis of multicarboxylic hyperbranched polyglycerol (HPG) modified monodisperse superparamagnetic poly (glycidyl methacrylate) microspheres for capable dye adsorption","authors":"Hengbo Lei, Xiang Cao, Yuguo Tang","doi":"10.1007/s10965-025-04269-4","DOIUrl":"10.1007/s10965-025-04269-4","url":null,"abstract":"<div><p>Monodisperse superparamagnetic poly (glycidyl methacrylate) microspheres (PGMA-HPG-COOH) with carboxyl group were synthesized and applied to treatment of cationic dyes wastewater. The composite adsorbent not only has good adsorption selectivity for cationic dyes (e.g., methylene blue (MB) and rhodamine 6G (R6G)), but also has convenient magnetic separation characteristics. The optimal pH for the adsorption of methylene blue was determined as pH 7, which was associated with the surface charge of adsorbent. Due to its ultra-high hydrophilicity, PGMA-HPG-COOH demonstrated a remarkably rapid adsorption rate for MB and R6G, and the adsorption saturation level of 95% can be achieved within just 10 min. The adsorption data showed nice correlation with pseudo-second-order kinetic model and Langmuir isotherm. The theoretical maximum adsorption capacity of PGMA-HPG-COOH for MB and R6G can reach 238.1 mg/g and 227.27 mg/g, respectively. Futhermore, PGMA-HPG-COOH can be effectively regenerated using a binary HCl-ethanol solution, maintaining the adsorption efficiency of 91.7% after five cycles of recycling. These findings substantiate the promising potential of the PGMA-HPG-COOH adsorbent for application in water treatment processes.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Acoholysis behavior of PET waste with hybrid fibers and their application in the synthesis of unsaturated resins

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-22 DOI: 10.1007/s10965-025-04333-z

Juhua Ou, Zilin Dai, Zhenxing Kong, Rui Yang

{"title":"Acoholysis behavior of PET waste with hybrid fibers and their application in the synthesis of unsaturated resins","authors":"Juhua Ou, Zilin Dai, Zhenxing Kong, Rui Yang","doi":"10.1007/s10965-025-04333-z","DOIUrl":"10.1007/s10965-025-04333-z","url":null,"abstract":"<div><p>A novel fiber-derived unsaturated polyester resin (UPR) was synthesized through alcoholysis and polycondensation by using PET and hybrid fibers as raw materials. The effects of alcoholysis conditions including alcoholysis time, temperature, initiator concentration, type of alcoholysis agents and amount of hybrid fibers on the alcoholysis behavior were investigated by HPLC, LC–MS and GPC. A comprehensive analysis of the fiber-derived UPR was conducted under different reaction conditions and discussed by FTIR, viscosity, acid value and mechanical properties. HPLC results indicated a strong correlation between the maximal peak area in spectrometry and the yield of main glycol products. It was established that the alcoholysis of PET with hybrid fiber samples mainly obtain alcoholysis monomers and dimers by using glycol as an alcoholysis agent. It was discovered that less alcoholysis products was obtained with lower diethylene glycol. The molecular weight of glycolyzed products are oligomers based on a alcoholysis reaction time reached above 3 h. Under the optimal conditions, PET: EG: zinc acetate = 1.0: 2.0: 0.3 (wt%), 200 ℃, 3 h, PET/PU was completely alcoholyzed and produced oligomers. The performance of liquid UPR and its cured product have been investigated. The UPR prepared by PET/PU was utilized as a fiber source unsaturated resin, meeting the standards for organic artificial stone. This article highlighted the potential usage of PET with hybrid fibers in unsaturated resin.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dielectric properties of green synthesized Ag-doped ZnO NPs in epoxy resin polymer nanocomposites

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-20 DOI: 10.1007/s10965-025-04334-y

Jaivik Pathak, Unnati Joshi, Prince Jain, Anand Joshi, Sanketsinh Thakor, Swapnil Parikh, Mahendra Singh Rathore

{"title":"Dielectric properties of green synthesized Ag-doped ZnO NPs in epoxy resin polymer nanocomposites","authors":"Jaivik Pathak, Unnati Joshi, Prince Jain, Anand Joshi, Sanketsinh Thakor, Swapnil Parikh, Mahendra Singh Rathore","doi":"10.1007/s10965-025-04334-y","DOIUrl":"10.1007/s10965-025-04334-y","url":null,"abstract":"<div><p>This study investigates the dielectric properties of green synthesized ZnO and Ag-doped ZnO with different wt.% of Ag concentration in ZnO nanoparticles with epoxy polymer nanocomposites. To confirm their structural properties and chemical interactions with the neat epoxy, composite was characterized using X-ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). Scanning electron microscope (SEM) used to study the surface morphology of the prepared nanocomposites. The energy dispersive spectroscopy (EDS) measurement was carried out to determine the elemental composition in the samples. The LCR was used to study dielectric properties in the frequency range of 1 k Hz to 2 MHz The result shows that doping concentration and particle dispersion significantly influence dielectric properties. Among the Ag-doped ZnO epoxy composite, 2 wt.% exhibited the achieving high dielectric constant and low losses due to superior filler dispersion. AC conductivity trends aligned with dielectric measurements, confirming the critical role of doping and dispersion in tailoring dielectric behavior for advanced applications. This study also investigates machine learning techniques to predict the target variables ε′ and ε″ using Gradient Boosting, Extra Trees, and XGBoost. Gradient Boosting achieved the best performance with an R<sup>2</sup> of 0.9993 and MAE of 0.0101 for ε′, while the Ensemble model provided robust and consistent predictions, outperforming Extra Trees and XGBoost in specific metrics.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Optically clear pressure sensitive adhesives with multiple hydrogen bond cross-linking

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-20 DOI: 10.1007/s10965-025-04328-w

Shuanghao Kang, Tianle Li, Han Jiang, Ziheng Fu, Renjin Gao, Qinhui Chen, Jianrong Xia

引用次数: 0

Influence of natural weathering on aesthetics, structural, morphological, and mechanical properties of the palm petiole fibers/LLDPE composites

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-19 DOI: 10.1007/s10965-025-04324-0

Nedjla Debabeche, Hamida Boussehel, Amina Hachaichi, Mohd Rehan Khan, Othman Alothman, Oumkeltoum Kribaa, Belhi Guerira, Mohammad Jawaid

{"title":"Influence of natural weathering on aesthetics, structural, morphological, and mechanical properties of the palm petiole fibers/LLDPE composites","authors":"Nedjla Debabeche, Hamida Boussehel, Amina Hachaichi, Mohd Rehan Khan, Othman Alothman, Oumkeltoum Kribaa, Belhi Guerira, Mohammad Jawaid","doi":"10.1007/s10965-025-04324-0","DOIUrl":"10.1007/s10965-025-04324-0","url":null,"abstract":"<div><p>This study explores the impact of natural weathering on the mechanical, structural, morphological, and aesthetic properties of linear low-density polyethylene (LLDPE) composites reinforced with 15% palm petiole fibers (PPF) subjected to successive chemical treatments. Composites were exposed to Biskra, Algeria’s arid conditions for 360 days. FTIR analysis identified carbonyl peak formation, signifying oxidation, while weight loss measurements revealed enhanced biodegradability in treated composites, with weight loss proportional to exposure duration. SEM micrographs demonstrated pronounced surface deterioration in sodium hydroxide and hydrogen peroxide-treated composites compared to acetylated variants, which exhibited better resistance. Notably, UV-induced cross-linking in the polymer matrix and fiber recrystallization improved tensile strength and Young’s modulus. These findings highlight the potential of chemically treated PPF/LLDPE composites for sustainable applications in arid environments, balancing enhanced mechanical performance with biodegradability.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Graphene reinforced UHMWPE fibers

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-19 DOI: 10.1007/s10965-025-04319-x

ZhiJing Xue, Kenneth R. Brown, Timothy M. Harrell, Xiaodong Li

{"title":"Graphene reinforced UHMWPE fibers","authors":"ZhiJing Xue, Kenneth R. Brown, Timothy M. Harrell, Xiaodong Li","doi":"10.1007/s10965-025-04319-x","DOIUrl":"10.1007/s10965-025-04319-x","url":null,"abstract":"<div><p>Thermoplastic polymers are increasingly used in electric vehicles, hydrogen fuel cell vehicles, and other decarbonization applications due to their lightweight and formability. Higher-strength polymers are needed to supplant metals in the vehicle structure, thereby reducing mass and improving efficiency. Ultra-high molecular weight polyethylene (UHMWPE) fibers possess one of the highest strength-to-weight ratios of technical polymers, and further improvement via reinforcement by nanofillers, such as graphene, will expand their performance envelope. In this work, UHMWPE/graphene nanocomposite fibers were gel spun and characterized for their morphological, microstructural, thermal, and mechanical properties. The addition of a low fraction of graphene improved the tensile strength of the fibers by 25% and tensile modulus by 32%. Differential scanning calorimetry showed an increase in melting temperature and degree of crystallinity, which indicates improved coordination of the molecular chains induced by the addition of graphene. The reinforcement also affected the cross-sectional shape of the fibers; the aspect ratio of the fibers’ elliptical shape declined with increasing graphene content showing the skeletal effect of the graphene nanofillers in the polymer matrix. The reinforcing effect of graphene declined above a threshold concentration, and theoretical modeling was applied to demonstrate that increased agglomerates led to reduced properties. This work demonstrates a simple, effective method to produce graphene-reinforced UHMWPE fibers and lays a foundation for understanding the potential for leveraging graphene to form ultra-high-performance nanocomposite fibers for myriad engineering applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Chemical modification of starch-based nanoparticles for Pickering emulsions: a review

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-19 DOI: 10.1007/s10965-025-04326-y

Zhiying Wang, Da Deng, Xiaopeng Pei, Luoluo Li, Qingquan Tian, Mingquan Wang, Xianping Yao, Ying Tan

{"title":"Chemical modification of starch-based nanoparticles for Pickering emulsions: a review","authors":"Zhiying Wang, Da Deng, Xiaopeng Pei, Luoluo Li, Qingquan Tian, Mingquan Wang, Xianping Yao, Ying Tan","doi":"10.1007/s10965-025-04326-y","DOIUrl":"10.1007/s10965-025-04326-y","url":null,"abstract":"<div><p>Pickering emulsions, stabilized by solid particles, have gained prominence over conventional surfactant-based emulsions due to their superior stability, reduced emulsifier requirements, biocompatibility, and safety. Among potential stabilizers, starch-based nanoparticles (SNPs) have emerged as promising natural alternatives to synthetic counterparts, owing to their unique properties including cost-effectiveness, biocompatibility, renewability, and biodegradability. Chemical modification has proven to be an effective approach for altering starch properties. This review provides a comprehensive and critical analysis of the chemical modification processes employed to produce SNPs for use as Pickering emulsion stabilizers. The discussion encompasses the fabrication of SNPs and primary chemical modifications. These modifications introduce various hydrophobic functional groups onto starch particles, thereby enhancing their wetting properties and fulfilling the requirements for effective particle stabilizers. The review emphasizes the significant impact of modified functional group types, degree of substitution, and particle fabrication methods on the wetting characteristics of the resulting particles. This critical examination of recent advancements in starch-based Pickering emulsion stabilizers provides valuable insights for future research directions and potential industrial applications in this rapidly evolving field.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comparative study on the effect of carbon nanotubes (CNTs), aminosilane-functionalized CNTs, TESPT-functionalized CNTs and 1-octadecanol-functionalized CNTs on the mechanical properties and swelling resistance of EPDM/SBR nanocomposites

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-19 DOI: 10.1007/s10965-025-04335-x

S. Vishvanathperumal, K. N. Ramu, J. Vasantheroy, K. A. V. Roossvelt Prabhu

{"title":"Comparative study on the effect of carbon nanotubes (CNTs), aminosilane-functionalized CNTs, TESPT-functionalized CNTs and 1-octadecanol-functionalized CNTs on the mechanical properties and swelling resistance of EPDM/SBR nanocomposites","authors":"S. Vishvanathperumal, K. N. Ramu, J. Vasantheroy, K. A. V. Roossvelt Prabhu","doi":"10.1007/s10965-025-04335-x","DOIUrl":"10.1007/s10965-025-04335-x","url":null,"abstract":"<div><p>The present study examines the effects of carbon nanotubes (CNTs), 3-aminopropyltriethoxysilane (APTES)-functionalized CNTs (sCNTs), bis(triethoxysilylpropyl) tetrasulfide (TESPT)-functionalized CNTs (tCNTs), and 1-octadecanol-functionalized CNTs (cCNTs) on the rheometric behavior, mechanical properties, morphology, abrasion resistance, swelling resistance, compression set, and crosslinking density of ethylene-propylene-diene monomer/styrene-butadiene rubber (EPDM/SBR) composites. The filler content was varied from 0 to 8 phr (parts per hundred rubber). In terms of rheometric behavior, properties such as minimum torque, maximum torque, delta torque, and cure rate index increased with higher filler content, while scorch time and optimum cure time decreased. Regardless of the filler type, increasing the filler content led to higher compound viscosity, reduced cure time, enhanced crosslink density, and improved abrasion resistance and hardness of the vulcanizates. For all filler types, tear strength, compression set, and swelling resistance showed a consistent increase with rising filler content. However, tensile strength increased with filler content up to 5 phr but declined noticeably beyond this threshold for all filler types. At any given filler content, CNTs demonstrated superior compression set performance compared to sCNTs, tCNTs, and cCNTs.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A general strategy for enhancing the migration resistance of plasticizer in poly(vinyl chloride)

IF 2.6 4区化学

Journal of Polymer Research Pub Date : 2025-03-17 DOI: 10.1007/s10965-025-04323-1

Dekai Liu, Pingping Jiang, Nan Wang, Xuewen Li, Yuanyuan Qin, Jia Liu, Zhenhua Li, Yuchao Li

{"title":"A general strategy for enhancing the migration resistance of plasticizer in poly(vinyl chloride)","authors":"Dekai Liu, Pingping Jiang, Nan Wang, Xuewen Li, Yuanyuan Qin, Jia Liu, Zhenhua Li, Yuchao Li","doi":"10.1007/s10965-025-04323-1","DOIUrl":"10.1007/s10965-025-04323-1","url":null,"abstract":"<div><p>Due to the tendency of plasticizers like di-2-ethylhexyl phthalate (DOP) and bis(2-ethylhexyl)adipate (DOA) to migrate from PVC products, which pose serious health risks, and have therefore been increasingly restricted in many countries. Enhancing the migration resistance of plasticizers in PVC remains a critical challenge. Based on the molecular design concept of plasticizers, ester-branched epoxidized oleic acid plasticizers (E-ECD, E-EOD, and E-EHD) with excellent migration resistance in PVC were synthesized through esterification, Claisen condensation, and epoxidation reactions. The structural characteristics of the synthesized plasticizers were determined using FT-IR and <sup>1</sup>H NMR. During a 10-day migration resistance test, PVC plasticized with E-ECD exhibited a weight loss of less than 5 wt% in both polar and non-polar environments, with a migration rate of only 0.6 wt% in oily media. The potential plasticizing mechanisms of these plasticizers in PVC are elaborated in detail. This study offers a practical and generalizable strategy for the development of high-performance plasticizers with improved migration resistance.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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