Polymer Degradation and Stability最新文献

{"title":"Thermo-aging induces adhesion between silicone foam and metal-mechanism behind","authors":"Yunpeng Xie ,&nbsp;Zhaohui Xu ,&nbsp;Lei Yu ,&nbsp;Dayang Wang ,&nbsp;Xiaolin Lu","doi":"10.1016/j.polymdegradstab.2026.111941","DOIUrl":"10.1016/j.polymdegradstab.2026.111941","url":null,"abstract":"<div><div>Silicone foam, as a damping material, is widely used between metal components in integrative device systems. After long-term service, silicone foam tends to adhere to metal substrates, thus leading to the disassembly difficulty and compromising the system reliability. Owing to the interfacial complexity when the silicone foam and the metal component stick to each other, the underlying adhesion mechanisms still remain unclear. This study aims to elucidate the adhesion mechanism between the silicone foam and the metal substrate using a stainless steel/silicone foam/stainless steel sandwiched structure through accelerated aging and under compressive stress. Multiscale techniques from morphology, spectroscopy and depth profile were applied to study the joint interfacial structures and elucidate the adhesion mechanism between the silicone foam and stainless steel. It was demonstrated that the silicone foam-stainless steel adhesion behavior arose from the synergistic effects of thermo-oxidative aging and compressive stress, which had induced physical and chemical changes of the silicone foam at the interface. Specifically, the interfacial interactions were comprised of covalent bonding (Si−O−Metal), micro-mechanical interlocking, hydrogen bonding, and van der Waals force. Such findings shall provide new insights into the adhesion mechanisms of polymer-metal interfaces and offer practical guidance for the design and reliability assessment of damping materials in engineering applications.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111941"},"PeriodicalIF":7.4,"publicationDate":"2026-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975013","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}

{"title":"Aging properties of silk fabrics produced by factory-based all-age artificial diet-rearing silkworms","authors":"Zheyao Lu ,&nbsp;Mengyao Pan ,&nbsp;Ying Mao ,&nbsp;Leyuan WU ,&nbsp;Wenbin Jiang ,&nbsp;Wangyang Lu ,&nbsp;Wenxing Chen","doi":"10.1016/j.polymdegradstab.2026.111940","DOIUrl":"10.1016/j.polymdegradstab.2026.111940","url":null,"abstract":"<div><div>Traditional mulberry leaf silkworm rearing is influenced by various factors, which limit the development of the sericulture industry. To overcome this problem, factory-based all-age artificial diet silkworm rearing has emerged as a viable alternative. As this is a new technology, studies on the aging properties of fabrics produced by this method are limited. In this work, degummed silk fabrics obtained from factory-based all-age artificial diet-rearing silkworms (referred to as artificial diet-reared fabrics) were compared with degummed silk fabrics obtained from traditional mulberry leaf-reared silkworms (referred to as mulberry leaf-reared fabrics). Both categories of fabrics underwent separate treatments of outdoor exposure, ultraviolet irradiation, and thermal aging. The findings showed that, in terms of surface morphology, no marked distinction was observed between the artificial diet-reared and mulberry leaf-reared fabrics either before or after aging. However, the aged artificial diet-reared fabrics exhibited a more pronounced color change, characterized by stronger yellowing compared with the aged mulberry leaf-reared fabrics. Furthermore, the β-sheet structural content and crystallinity were consistently lower in the artificial diet-reared fabrics than in the mulberry leaf-reared fabrics under comparable conditions, both prior to and following the aging treatments. Owing to the influence of the β-sheet structure content and crystallinity, the bursting strength and thermal stability of the artificial diet-reared fabrics were also lower than those of the corresponding mulberry leaf-reared fabrics. Although differences in these properties were observed between the two types of fabrics, the differences were relatively limited. With continued advances in factory-based all-age artificial diet rearing, silk fabrics produced from artificial diet-reared silkworms show the potential to gradually replace traditional mulberry leaf-reared silk fabrics.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111940"},"PeriodicalIF":7.4,"publicationDate":"2026-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975009","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}

{"title":"High temperature performance of polyimide under accelerated thermal aging: linking chemical modifications to electrical properties","authors":"Jizhu Jin,&nbsp;Davide Fabiani,&nbsp;Simone Vincenzo Suraci","doi":"10.1016/j.polymdegradstab.2026.111939","DOIUrl":"10.1016/j.polymdegradstab.2026.111939","url":null,"abstract":"<div><div>Polyimide (PI) films are widely employed as high-temperature insulation in aerospace and electrical systems, where long-term reliability strongly depends on their thermo-oxidative stability. To evaluate their aging behavior, PMDA-ODA PI films were thermally aged in air at 280°C up to 60 days. Materials were tested by nondestructive techniques: Field Emission Scanning Electron Microscope (FE-SEM), Fourier Transform Infra‐Red (FTIR) (using both ATR and transmission modes), dielectric spectroscopy, DC conductivity and thermally stimulated depolarization current (TSDC) measurements. The results reveal that the material remains stable during the first 10 days with limited oxidation. From 10 to 40 days, FTIR shows that oxidation gradually extends from the surface into the bulk, increasing the amount of carbonyl dipoles. This leads to stronger dipolar polarization, while microstructural rearrangements caused by chain scission enhance interfacial polarization and conductivity. In the later stage, both interfacial polarization and conductivity reach a stable plateau. DC conductivity and TSDC measurements jointly revealed a two-stage trap evolution: a pronounced reduction of activation energy and trap depth up to 30 days, followed by a slower stabilization phase. These findings deepen the understanding of polyimide aging and support the development of more reliable high-temperature insulation.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111939"},"PeriodicalIF":7.4,"publicationDate":"2026-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975012","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}

{"title":"A transparent, room-temperature self-healing, and flame-retardant peach gum-based vitrimer enabled by boronic ester bonds for sustainable materials","authors":"Ningning Zhang,&nbsp;Aoqian Xi,&nbsp;Wenpei Chen,&nbsp;Ting Huang,&nbsp;Yurong Zeng,&nbsp;Li Zhou,&nbsp;Yanning Zeng","doi":"10.1016/j.polymdegradstab.2026.111937","DOIUrl":"10.1016/j.polymdegradstab.2026.111937","url":null,"abstract":"<div><div>Recyclable bio-based vitrimers present a promising pathway to mitigate environmental pollution and diminish reliance on petroleum resources. However, integrating multiple functionalities, including flame retardancy, room-temperature self-healing, antibacterial activity, antioxidant performance, and closed-loop recyclability, into a single vitrimer system via a straightforward method remains a considerable challenge. Herein, we address this challenge by developing multifunctional bio-based vitrimers derived from natural peach gum polysaccharide (PGB) through direct curing with 1,4-phenylenebisboronic acid. The resulting cross-linked network exhibits excellent room-temperature self-healing capability, achieving over 94% healing efficiency within 180 min, attributable to the dynamic boronic ester bonds. Furthermore, the PGB vitrimers demonstrate outstanding flame retardancy, achieving a limiting oxygen index (LOI) of 33.8% and a UL-94 V-0 rating. They also possess significant antioxidant activity (&gt;85% DPPH radical scavenging rate) and exhibit strong antibacterial efficacy against <em>S. aureus</em>, with an average inhibition zone diameter of 15.3 mm. Owing to their multifunctionality, sustainability, and straightforward preparation, these peach gum-derived vitrimers hold great potential for advanced applications in coatings, packaging, and soft electronics.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111937"},"PeriodicalIF":7.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975016","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}

{"title":"Novel formulations for the protection of wooden artifacts","authors":"Laura Vespignani ,&nbsp;Giulia Villano ,&nbsp;Micol Bucci ,&nbsp;Alessandra Cecchetti ,&nbsp;Mara Camaiti ,&nbsp;Antonella Salvini","doi":"10.1016/j.polymdegradstab.2026.111934","DOIUrl":"10.1016/j.polymdegradstab.2026.111934","url":null,"abstract":"<div><div>Wooden artifacts are highly susceptible to degradation from moisture, pollutants, and ultraviolet (UV) radiation, which presents significant challenges in Cultural Heritage conservation. This study investigates the performances of novel formulations containing short-chain fluorinated oligoamides or fluorinated amines as protective treatments for wood artifacts and the effect of specific additives to increase their stability against photodegradation. Derivatives with C4 and C6 perfluorinated chains were obtained through ring-opening reactions and their formulations optimized for use with environmentally friendly solvents. When applied to beech wood, the coated surfaces significantly improved water and oil repellency, with Water Contact Angles (WCA) exceeding 125° and Oil Contact Angles (OCA) over 100°, while causing minimal visual changes to the surface. The addition of light stabilizers, particularly selected UV Absorbers (UVA), enhanced the durability of the coatings and slightly reduced photo-induced color changes observed in virgin wood and even when the coating alone was used. Accelerated aging tests and spectroscopic analysis confirmed the maintenance of protective properties over time by the formulations, supporting their potential as sustainable and reversible treatments for the long-term protection of wooden Cultural Heritage materials.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111934"},"PeriodicalIF":7.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975011","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}

{"title":"Preparation of flame retardant and antibacterial multifunctional lyocell fabric based on bio-based taurine-chitosan derivative","authors":"Lu Bai ,&nbsp;Wei Tan ,&nbsp;Yin Tian ,&nbsp;Lei Tan ,&nbsp;Ying Chang ,&nbsp;Guixiang Song ,&nbsp;Ping Li ,&nbsp;Yuanlin Ren ,&nbsp;Xiaohui Liu","doi":"10.1016/j.polymdegradstab.2026.111935","DOIUrl":"10.1016/j.polymdegradstab.2026.111935","url":null,"abstract":"<div><div>To improve the flame retardancy of lyocell fabrics, in this paper, an eco-friendly flame retardant and antibacterial lyocell fabric (FR@Si-lyocell) was fabricated by surface grafting modification. The surface morphology, combustion properties and antibacterial rate of FR@Si-lyocell were investigated. FR@Si-lyocell exhibited excellent char-forming ability with residual char of up to 40.24 wt% and 11.78 wt% at 800^oC in N₂ and air, respectively. Its limiting oxygen index (LOI) value increased from 17.6% to 32.3%, and the peak heat release rate (PHRR) and total heat release (THR) decreased significantly by 94.4% and 74.5% compared to the control sample. The synergistic flame retardant mechanism of gas and condensed phases was proposed by analyzing the volatile pyrolysis products and char residue generated during the combustion process. In addition, FR@Si-lyocell showed excellent antibacterial properties, with inhibition efficiencies as high as 99.9% and 99.7% against Escherichia coli (<em>E. coli</em>) and Staphylococcus aureus (<em>S. aureus</em>). This work provided an efficient and eco-friendly method to prepare multifunctional lyocell fabrics with potential application fields.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111935"},"PeriodicalIF":7.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975010","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}

{"title":"Surface-modified piperazine pyrophosphate: Migration resistance and high-efficiency flame retardancy in polypropylene","authors":"Mingliang Wang ,&nbsp;Jiaqi Gao ,&nbsp;Xintai Chen ,&nbsp;Junzhao Su ,&nbsp;Xuhuang Chen","doi":"10.1016/j.polymdegradstab.2026.111936","DOIUrl":"10.1016/j.polymdegradstab.2026.111936","url":null,"abstract":"<div><div>Piperazine pyrophosphate (PAPP), a prominent representative of intumescent flame retardants (IFR), has garnered significant attention due to its high efficiency, halogen-free, and environmentally friendly properties. Nevertheless, PAPP is highly hydrophilic, which predisposes it to powder agglomeration, exudation, and migration within the polymer matrix. This study proposes an innovative surface treatment strategy to enhance the dispersibility and anti-exudation property of PAPP in polypropylene (PP) by forming a hydrophobic cross-linked layer of hydrogen-containing silicone oil (PMHS) and vinyl silicone oil (VSO) on the surface of PAPP. The experimental results showed that the water contact angle of PAPP modified with a hydrophobic cross-linked surface layer (i.e., PHV@PAPP) increased from 0° to 147° The results of migration test under boiling conditions of PP/PHV@PAPP showed that the introduction of PHV@PAPP reduced the precipitation rate of PP/PAPP from 2.29% to 0.17%, and the water absorption rate decreased from 5.75% to 1.41%. The flame-retardant performance of PP/PHV@PAPP showed significant enhancement compared to PP/PAPP, achieving UL-94 V-0 classification with merely 21 wt% flame retardant loading. Additionally, the peak heat release rate (PHRR) decreased from 66 kW·m⁻² to 39 kW·m⁻², and the time to peak heat release rate (T_PHRR) increased from 240 s to 550 s. Moreover, the total smoke production (TSP) and peak smoke production rate (PSPR) were decreased. The analysis of the carbon layer after combustion shows that the density of the PP/PHV@PAPP carbon layer is greater than that of the PP/PAPP carbon layer, indicating that the modified PAPP can effectively inhibit the heat and mass transfer during combustion.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111936"},"PeriodicalIF":7.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975015","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}

{"title":"Phosphate ester-based polyols as flame retardants for flexible polyurethane foam: fire behavior and mechanism","authors":"Zhuo-Lin Li ,&nbsp;Wen Ye ,&nbsp;Xiang Ao ,&nbsp;Ping-Yang Li ,&nbsp;Xiong Xiao ,&nbsp;Xiao-Lei Li ,&nbsp;Zhao-Cong Shang ,&nbsp;De-Yi Wang","doi":"10.1016/j.polymdegradstab.2026.111932","DOIUrl":"10.1016/j.polymdegradstab.2026.111932","url":null,"abstract":"<div><div>To address the high flammability, rapid flame spread, and non-self-extinguishing behavior of flexible polyurethane foams (FPUFs), a series of novel liquid reactive phosphate ester polyols, denoted as BOPF, CPF, and EPF, were synthesized by reacting propylene oxide with structurally distinct phosphorus compounds. When incorporated into FPUFs at 3 wt%, CPF demonstrated exceptional performance, achieving an LOI of 20.5% and a 16.4% reduction in peak heat release rate, which decreased to 740 kW/m². A key innovation was that FPUF-3CPF achieved rapid self-extinguishing within 5 s in the vertical burning test, while simultaneously exhibiting an 8.9% increase in tensile strength, effectively overcoming the common drawback of mechanical property deterioration associated with traditional flame retardants. Further investigation into the volatiles released during thermal degradation and the residues after cone calorimetry tests provided insight into the possible flame-retardant mechanisms. In the gaseous phase, the decomposition of phosphorus-based flame retardants generated phosphorus-containing free radicals, which inhibited the combustion chain reaction. In the condensed phase, these flame retardants promoted the formation of a dense and stable char layer on the foam surface. This work provided a feasible strategy for designing high-performance, halogen-free FPUFs that combine rapid self-extinction, enhanced mechanical properties, and significantly reduced fire hazard.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111932"},"PeriodicalIF":7.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035630","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}

{"title":"Enhanced dispersion stability of gold nanoparticles with injectable thermoresponsive poly(l-lactide-co-ε-caprolactone)-b-poly(ethylene glycol)-b-poly(l-lactide-co-ε-caprolactone) hydrogels","authors":"Jiahui Dong,&nbsp;Yu-I Hsu,&nbsp;Hiroshi Uyama","doi":"10.1016/j.polymdegradstab.2026.111933","DOIUrl":"10.1016/j.polymdegradstab.2026.111933","url":null,"abstract":"<div><div>Amphiphilic block copolymers are widely used to construct thermoresponsive micellar systems with injectable sol-gel transition behavior, making them promising candidates for biomedical applications. In this study, poly(l-lactide-co-ε-caprolactone)-b-poly(ethylene glycol)-b-poly(l-lactide-co-ε-caprolactone) (PLCL-PEG-PLCL) triblock copolymers were employed to fabricate micelles and micelle-AuNP hybrids. AuNPs were incorporated through two distinct strategies, direct aqueous mixing and THF-induced micellization, resulting in different spatial distributions. Spectroscopic and rheological analyses revealed that corona-associated AuNPs hindered micelle association and delayed gelation, whereas core-encapsulated AuNPs preserved the intrinsic thermo-responsive behavior. In addition, micelle formation significantly enhanced the stability of AuNPs under freezing, lyophilization, and heating conditions. These results demonstrate that controlling AuNPs localization within PLCL-PEG-PLCL micelles offers an effective strategy to tune optical response, rheology, and stability, providing a versatile platform for photothermally active injectable hydrogels.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111933"},"PeriodicalIF":7.4,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035626","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}

{"title":"In vitro hydrolytic and photooxidative stability of polyester-based materials for clear orthodontic aligners","authors":"Tahar Sif eddine Bouchema ,&nbsp;Johanna Saunier ,&nbsp;Jessica Mauriello ,&nbsp;Brice Savard ,&nbsp;Najet Yagoubi","doi":"10.1016/j.polymdegradstab.2026.111930","DOIUrl":"10.1016/j.polymdegradstab.2026.111930","url":null,"abstract":"<div><div>This study evaluated the stability of PETG material used in clear orthodontic aligners (COAs). The material was subjected to hydrolysis, oxidation, photolysis, and hot aqueous environments. The objectives were to reproduce different situations that can occur during the intraoral aging of COAs when patients fail to follow the orthodontist's instructions or clean their aligner, and to evaluate the impact on the material properties and the compounds leached under these conditions, two factors that can have consequences for the performance and safety of the device. Changes in surface chemical groups were analyzed using Fourier Transform Infrared (ATR-FTIR) spectroscopy. Morphology was examined using scanning electron microscopy (SEM), while surface hydrophobicity was assessed by measuring the water contact angle. Monitoring of leaching products was performed using High-Performance Liquid Chromatography (HPLC). Furthermore, the thermomechanical properties were studied using several techniques, including thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA).</div><div>The most significant impact on the device was observed in an alkaline environment, during photooxidation, and after contact with hot or alcoholic beverages. These alterations manifested in different ways: the PETG chains can be degraded, resulting in the formation of small degradation products, whose leaching can be promoted by the interaction with the liquid simulant. The released products differ significantly depending on the storage conditions and may have consequences for patient safety. Interactions with environment can also modify the thermo-mechanical behavior, and alter the surface properties. The surface of the device can be modified through the formation of a rougher surface during hydrolysis, the creation of cavities during photolysis and oxidation, or the formation of coatings. A significant decrease in hydrophobicity was also observed. In addition, thermomechanical properties, particularly the static and dynamic glass transition temperatures, can decrease after storage due to chain reorganization and solvent sorption. The stiffness of the device is also impacted, with a decrease in the storage modulus, particularly for alkaline solutions and photooxidation, suggesting potential consequences for the treatment efficacy.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"246 ","pages":"Article 111930"},"PeriodicalIF":7.4,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974641","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}