Polymer Bulletin最新文献

{"title":"Healable thermoset polyurethanes with high biomass content driven by dynamic phenol–carbamate bonds","authors":"Ryuki Kubota,&nbsp;Mitsuhiro Shibata","doi":"10.1007/s00289-024-05620-3","DOIUrl":"10.1007/s00289-024-05620-3","url":null,"abstract":"<div><p>Bio-based healable polymer networks have attracted considerable attention because of their carbon neutrality and healability, which lead to long service life. In this study, pyrogallol (PGL), poly(trimethylene glycol) (PO3G), and 1,5-pentamethylene diisocyanate (PDI) produced phenolic polyurethane networks (PUN-PG/PO) with a high biomass content (89–94 wt.%). Most of the PUN-PG/POs displayed two tan δ peaks corresponding to the glass transition of PGL- and PO3G-based segments in the dynamic mechanical analysis. No phase separation with diameters higher than submicron size was observed in the FE-SEM images of the fractured surfaces of PUN-PG/POs. The 5% weight loss temperature for the PUN-PG/POs decreased and the tensile strength and modulus increased as the ratio of PGL to PO3G increased. The decomposition test of the cured product of PGL and PDI in excess 1-hexanol revealed that the dissociation of phenol–carbamate bonds started at approximately 100 °C. All of the PUN-PG/POs were healable by hot-pressing at 100 °C for 2 h under 1 MPa at least three times. The healing efficiency in terms of tensile strength increased with a decreasing ratio of PGL to PO3G, and the maximal healing efficiency was 85%.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2329 - 2350"},"PeriodicalIF":3.1,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818261","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":"Engineering smart hydrogels for intelligent drug delivery","authors":"Mitra Baghali,&nbsp;Hakimeh Ziyadi,&nbsp;Antonio Di Martino","doi":"10.1007/s00289-024-05618-x","DOIUrl":"10.1007/s00289-024-05618-x","url":null,"abstract":"<div><p>Hydrogels are a brand new generation of three-dimensional polymeric networks with crosslinking bonds and the potential to hold large amounts of aqueous solvents and biological fluids, which have attracted considerable interest in numerous fields. Smart hydrogels can show reversible volume phase transitions or sol–gel transitions in response to small environmental stimuli. Stimulus-responsive hydrogels are also known as smart or environment-sensitive hydrogels. Generally, stimuli are categorized into three groups: physical (temperature, strain, light, sound, ultrasound, electric and magnetic fields, and mechanical pressure), chemical (pH, solvent composition, chemical species, or ionic energy), and biological (glucose, enzyme, and antigen) situations and stimuli. Based on this kind of responsiveness, smart hydrogels have performed a great role in a wide variety of applications, including remedy, biomedical engineering, and drug delivery systems. The purpose of this study is to investigate the basic concept of smart hydrogels and categorize them based totally on the types of stimulants in drug delivery systems. This review also discusses the structural elements and functional properties of smart hydrogels, their chemical interactions, and the principle variables involved in their structure. Smart hydrogels have great promise as a futuristic drug delivery system, enabling targeted and managed release of healing agents. Their responsiveness to environmental stimuli opens new avenues for particular and personalized treatments, revolutionizing the pharmaceutical sector.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2287 - 2328"},"PeriodicalIF":3.1,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818229","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":"Tripolyphosphate-crosslinked chitosan-based nanoparticles as pH responsive for curcumin release","authors":"Ali Abbasi,&nbsp;Ladan Edjlali,&nbsp;Mirza Agha Babazadeh,&nbsp;Elnaz Ghasemi,&nbsp;Gholam Reza Mahdavinia","doi":"10.1007/s00289-024-05617-y","DOIUrl":"10.1007/s00289-024-05617-y","url":null,"abstract":"<div><p>In recent years, the use of chitosan-based nanoparticles (CS NPs) for controlled release has attracted much attention from researchers. Hence, in the present work, two types of tripolyphosphate (TPP)-crosslinked CS NPs, namely CS@CUR/TPP and CS/Salicylic acid@Curcumin/TPP (CS/SA@CUR/TPP), were designed as biocompatible nanocarriers for controlled delivery of curcumin (CUR). The successful preparation of NPs is analyzed and confirmed by FT-IR, XRD, FE-SEM, EDX, TEM, TGA, DLS, and Zeta potential analysis. Based on the TEM analysis, it was observed that the designed CS/SA@CUR/TPP NPs had a spherical morphology with an average diameter of around 50 nm. The drug encapsulation efficiency (EE%) of CS@CUR/TPP and CS/SA@CUR/TPP NPs was 63.9% and 94.4%, respectively. The in vitro drug release study revealed that the release rate of CUR from the NPs was higher at pH 5.5 compared to pH 7.4. This observation confirmed the controlled and pH-sensitive drug release from the prepared CS/SA@CUR/TPP NPs. The Korsmeyer-Peppas and Fickian diffusion well described the release mechanism of CUR. In addition, the designed CS/SA@CUR/TPP NPs showed good antibacterial properties against bacteria <i>E. coli</i> and <i>S. aureus</i>. In addition, the cellular cytotoxicity of the prepared CS/SA/TPP toward MCF-7 breast cancer cells confirms its relative biocompatibility and safety, whereas CS/SA/CUR-TPP NPs toward MCF-7 breast cancer cells had higher cytotoxicity effects due to the targeted and controlled release of CUR to MCF-7 cells. Based on the obtained findings, the prepared CS/SA@CUR/TPP NPs can be suggested as a biocompatible drug delivery system for cancer therapy.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2251 - 2268"},"PeriodicalIF":3.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818230","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":"Electrochemical, structural and morphological analysis of poly(aniline-co-o-aminophenol)/X (X = MoO2, NiMoW, NiW, and NiMo) copolymer composites films","authors":"Asuman Unal","doi":"10.1007/s00289-024-05622-1","DOIUrl":"10.1007/s00289-024-05622-1","url":null,"abstract":"<div><p>Copolymerization is a valuable approach to enhance the physical and chemical properties of conjugated polymers, often used to develop materials with improved functionality and stability. Poly(aniline-co-o-aminophenol) (PANI-PAP) is a copolymer that combines the beneficial properties of both polyaniline and poly-o-aminophenol, yielding a material with greater versatility and performance potential. Polymer composites further improve polymer characteristics by incorporating certain inorganic or organic components. This study focused on the synthesis and characterization of PANI-PAP/NiMoW/NiW/NiMo and/MoO₂ copolymer composites through in situ electrochemical polymerization techniques, using cyclic voltammetry and chronoamperometry. The effects of nickel, molybdenum, and tungsten on structural, morphological, and electrochemical properties were systematically evaluated. Fourier transform (FTIR) spectroscopy confirmed the interaction between organic and inorganic species in the composite films, while scanning electron microscopy (SEM–EDX) provided detailed insight into their morphology and composition. Results from this study demonstrated that PANI-PAP/NiMoW copolymer composite exhibits enhanced electroactivity, with more reversible and distinct electrochemical properties, making them promising candidates for advanced electrochemical applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2269 - 2286"},"PeriodicalIF":3.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818231","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":"Annealing-induced high impact toughness of isotactic polypropylene realized by introducing ultra-high molecular weight polyethylene","authors":"Jingru Liu,&nbsp;Yi Li","doi":"10.1007/s00289-024-05621-2","DOIUrl":"10.1007/s00289-024-05621-2","url":null,"abstract":"<div><p>In present work, a small amount of ultra-high molecular weight polyethylene (UHMWPE) was introduced into isotactic polypropylene (iPP), and the blend was further annealed at different temperatures to tailor the microstructure. The changes in microstructure and mechanical properties of iPP and iPP/UHMWPE blend upon annealing were investigated and compared in detail. It was found that UHMWPE acting as organic rigid particles could insert and segment iPP crystal grains, facilitating the enhancement of compatibility of immiscible iPP/UHMWPE blend. The introduction of UHMWPE and annealing treatment has synergistic toughening effect on iPP. The impact strength of iPP/UHMWPE blend reaches 7.3 kJ m⁻², 128% higher than that of pure iPP. After annealing at 120 °C for 3 h, the impact strength of iPP alone is increased by 75% in contrast to that of its unannealed counterpart, while this value is increased dramatically by 372% for the iPP/UHMWPE blend. The remarkably elevated impact toughness of iPP blended with a small amount of UHMWPE upon annealing could be ascribed to the rigid-particle function of UHMWPE, promoted mobility of chain segments in the amorphous region, and enhanced interfacial interaction between the iPP and UHMWPE upon annealing.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2229 - 2249"},"PeriodicalIF":3.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818201","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":"Pyridine-tetrathiafulvalene-terminated poly(N,N-dimethylacrylamide)s for specific and selective complexation and detection of Pb2+ ions","authors":"Wenhao Zhang,&nbsp;Corentin Samson,&nbsp;Stéphanie Legoupy,&nbsp;Abdelkrim El-Ghayoury,&nbsp;Sagrario Pascual,&nbsp;Sandie Piogé","doi":"10.1007/s00289-024-05616-z","DOIUrl":"10.1007/s00289-024-05616-z","url":null,"abstract":"<div><p>Pyridine (Py) and tetrathiafulvalene (TTF) moieties are strategically linked to the α-chain-ends of poly(<i>N,N</i>-dimethyacrylamide)s (PDMA) via reversible addition-fragmentation chain transfer (RAFT) polymerization and post-RAFT polymerization modification. Blue LED light-initiated RAFT polymerization, using a carboxylic acid-functionalized RAFT agent, enables the synthesis of carboxylic acid end-terminated PDMAs with precise molecular weights control and narrow molecular weight distributions (<i>Ð</i> ≤ 1.23). This irradiation process operates efficiently at 20 °C without external initiator and solvent, achieving near-total <i>N,N</i>-dimethyacrylamide conversion (<i>ρ</i> = 92%). The high fidelity of the carboxylic acid end-terminated PDMAs allows their quantitative post-polymerization modification (<i>f</i> = 93%) in the presence of alcohol-functionalized Py-TTF dyad. The resulting Py-TTF end-functionalized PDMAs exhibit complexing and electroactive properties. Thoroughly characterization via colorimetric tests, UV–Vis analyses and cyclic voltammetry measurements reveal their specific and selective complexation and detection ability, particularly for Pb²⁺ ions.</p><h3>Graphical abstract</h3><p>Blue light-induced RAFT polymerization of <i>N,N</i>-dimethylacrylamide (DMA) in bulk proceeds without solvent, without exogenous initiator, at room temperature with near-total conversions, and enables the preparation of pyridine-tetrathiafulvalene-terminated PDMAs for specific and selective complexation and detection of Pb²⁺ ions in organic and aqueous solution.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2209 - 2227"},"PeriodicalIF":3.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818200","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":"Investigating the effect of para-Toluenesulfonic acid on PANI/ZnO composite films for supercapacitor applications","authors":"S. Sajeena Beevi,&nbsp;R. Thomas,&nbsp;Hala Siddiq,&nbsp;Aisha Okmi,&nbsp;Hanan Alzahrani,&nbsp;Nouf Alharbi,&nbsp;T. Amutha,&nbsp;S. Sasi Florence","doi":"10.1007/s00289-024-05613-2","DOIUrl":"10.1007/s00289-024-05613-2","url":null,"abstract":"<div><p>In this study, we developed polyaniline/zinc oxide (PANI/ZnO) composites with para-Toluene sulfonic acid (p-TSA) as a sulfonating agent, aimed at improving their electrochemical performance for supercapacitor applications. The composites were synthesized via a wet chemical method and characterized using various techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), ultraviolet–visible spectroscopy (UV–Vis), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). XRD confirmed the formation of PANI and the successful integration of ZnO within the polymer matrix with the average particle size 35–45 nm, while FTIR analysis revealed the interaction between the sulfonating group (–SO₃H) of p-TSA and the composite surface. UV–Vis spectroscopy showed a blue shift in the absorption edge, indicating changes in the electronic structure induced by p-TSA. SEM and HRTEM images demonstrated a reduction in composite particle size with increasing p-TSA concentration, attributed to the prevention of particle aggregation. Furthermore, IV measurements revealed that the electrical conductivity of the composite improved with p-TSA addition, enhancing the effective surface area for electrical double-layer capacitance (EDLC). These findings suggest that p-TSA significantly improves the structural and electrochemical properties of PANI/ZnO composites, making them promising candidates for energy storage applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2191 - 2208"},"PeriodicalIF":3.1,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818197","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":"Effect of vinyl silane-treated Amaranthus spinosus plant root cellulose on load-bearing and time-dependent properties of pineapple fiber–vinyl ester composite","authors":"Madhu Balasubramanian,&nbsp;N. Nagabhooshanam,&nbsp;G. Balamuruga Mohan Raj,&nbsp;Rajesh Verma,&nbsp;D. Sendil Kumar,&nbsp;B. Tirupati Rao,&nbsp;D. Sravani","doi":"10.1007/s00289-024-05609-y","DOIUrl":"10.1007/s00289-024-05609-y","url":null,"abstract":"<div><p>This study investigates the enhancement of vinyl ester composites reinforced with pineapple fiber and silane-treated cellulose derived from the roots of the Amaranthus spinosus plant. The cellulose was extracted through a chemical process and subjected to a silane treatment to improve its compatibility with the vinyl ester matrix. The composites were fabricated using a 350cps viscosity vinyl ester resin, reinforced with 40 vol% pineapple fiber mats and varying percentages (0.5, 1, 2 and 4 vol%) of silane-treated cellulose. Among the composites, specimen VP3, containing 2 vol% silane-treated cellulose, demonstrated superior performance across all tested properties. It achieved a tensile strength of 142 MPa, a compression strength of 221 MPa and a flexural strength of 242 MPa, indicating optimal reinforcement. VP3 also showed the highest fatigue life, with 44,000 cycles at 30% UTS, and exhibited the lowest creep strain, indicating excellent resistance to time-dependent deformation. Thermally, VP3 exhibited a TG % of 95% and a degradation temperature of 410 °C, reflecting enhanced thermal stability. The dynamic mechanical analysis revealed a storage modulus of 6.1 GPa and a low loss factor of 0.65, indicating minimal energy dissipation and superior mechanical performance. The silane treatment played a crucial role in improving fiber–matrix adhesion, leading to better load transfer, reduced internal friction and enhanced overall properties. SEM analysis supported these findings by highlighting the presence of fiber breakage and pullout in specimens with lower silane-treated cellulose content, while VP3 showed minimal defects, confirming the effectiveness of the silane treatment and uniform filler dispersion. This study concludes that the optimized combination of pineapple fiber and silane-treated cellulose in VP3 offers the best balance of mechanical, thermal and viscoelastic properties, making it a promising material for advanced composite applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2169 - 2190"},"PeriodicalIF":3.1,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818172","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":"Microencapsulated pentadecane with nanocrystalline cellulose reinforced silane-acrylate shell for cold thermal energy storage application","authors":"Saurav Sarkar,&nbsp;Siddhesh Mestry,&nbsp;Jyoti Darsan Mohanty,&nbsp;S. T. Mhaske","doi":"10.1007/s00289-024-05579-1","DOIUrl":"10.1007/s00289-024-05579-1","url":null,"abstract":"<div><p>The microencapsulated phase change material (MEPCM) contains n-pentadecane as core material and nanocellulose-reinforced silane-acrylate (NVS) as shell material synthesized by emulsion polymerization. Vinyl tri-methoxy silane (VTMS)-modified nanocellulose was used as a crosslinker (X-linker). The effect of novel crosslinking agent concentration on the phase change properties of microcapsules was examined. The pentadecane/NVS (MEPCMs) were analyzed by Fourier transform infrared spectroscopy (FT-IR), optical microscopy (OM), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC). The results showed that microcapsules were synthesized successfully, and the best performance was obtained in MEPCM at 16% X-linker loading in shell composition. FT-IR indicates that there are no chemical reactions between the core and shell of the MEPCMs. The optical micrograph shows that with an increasing amount of silane acrylate-based X-linker in the emulsion recipe, the size of the MEPCM agglomerate was increased. The average diameter of MEPCM at 16% X-linker content is 0.5–2.6 μm investigated by SEM. The encapsulation efficiency and enthalpy of phase change of the MEPCM increase with X-linker contents. For MEPCM, the highest phase change enthalpy is 75.72 J/g with a maximum encapsulation efficiency of 58.8% at 16% X-linker content calculated by DSC parameters. This study is practically helpful for the development of thermoregulating composite materials.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2153 - 2167"},"PeriodicalIF":3.1,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818113","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 facile strategy to reinforce styrene butadiene rubber with modulus domain","authors":"L. J. Ran,&nbsp;X. P. Wang,&nbsp;Y. L. Yang","doi":"10.1007/s00289-024-05610-5","DOIUrl":"10.1007/s00289-024-05610-5","url":null,"abstract":"<div><p>The reinforcement of sulfur-crosslinked styrene butadiene rubber is of great importance. In this paper, styrene butadiene rubber with high modulus domains was prepared by a simple rubber processing process through the <i>in situ</i> reaction of epoxy resin and 4,4'-diaminodiphenylmethane (DDM), and satisfactory enhancement of mechanical properties was obtained. With the increase in epoxy resin from 5 to 15 phr, atomic force microscopy confirmed that the size of the dispersed phase increased from 400 nm ~ 1 μm to 750 nm ~ 2 μm, as well as the modulus increased from 90.1 to 279.3 MPa. Besides, the modulus of the SBR matrix was maintained at 11–15 MPa. It is proved that the dispersed phase forms a high modulus, low adhesion \"domain\" in the matrix. The 300% modulus, strength, and fracture toughness of the specimens significantly increased to 3.58, 6.34 MPa, and 17.41 MJ/m³, which are 2.50, 3.30, and 3.03 times higher than those of SBR, respectively, when the epoxy resin load was 15 phr. This strategy provides a cost-effective approach to obtain high strength rubber materials at high efficiency.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2129 - 2152"},"PeriodicalIF":3.1,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818114","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}