Journal of Polymers and the Environment最新文献_第2页

H2O-Initiated Polymerization of L-Lactide l -丙交酯的水引发聚合

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-05 DOI: 10.1007/s10924-025-03565-w

Hans R. Kricheldorf, Steffen M. Weidner

{"title":"H2O-Initiated Polymerization of L-Lactide","authors":"Hans R. Kricheldorf, Steffen M. Weidner","doi":"10.1007/s10924-025-03565-w","DOIUrl":"10.1007/s10924-025-03565-w","url":null,"abstract":"<div><p>Water-initiated ring-opening polymerizations (ROPs) of L-lactide (LA) were performed in bulk at 140 °C, whereupon 11 different salts or complexes of low-toxic metal ions such as tin (II), Zn(II), Zr(IV), and Bi(III) were used as catalysts. Only four catalysts gave satisfactory results despite a long reaction time (24 h). The influence of the temperature was studied with tin (II) 2-ethylhexanoate (SnOct<sub>2</sub>), dibutyltin oxide (Bu<sub>2</sub>SnO), and zinc bis-acetylacetonate (Zn(acac)<sub>2</sub>) and zirconium acetylacetonate (Zr(acac)<sub>4</sub>). With SnOct<sub>2,</sub> Bu<sub>2</sub>SnO and Zr(acac)<sub>4</sub> the time was varied at 140 °C to compare their reactivity. Furthermore, two series of ROPs were carried out with variation of the LA/H<sub>2</sub>O ratio to verify the control of the molecular weight by the monomer-initiator ratio. Bi- or tri-modal molecular weight distributions (MWD) were found for most of the ROPs and bimodal melting endotherms in the differential scanning calorimetry (DSC) heating traces. The thickness and dependence of the 3D packing of the crystallites were monitored by small-angle X-ray scattering (SAXS) measurements.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2843 - 2857"},"PeriodicalIF":4.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-025-03565-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancing Sustainability in FDM 3D Printing: Development and Characterization of Bio-based TPU 推进FDM 3D打印的可持续性：生物基TPU的开发和表征

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-04 DOI: 10.1007/s10924-025-03564-x

MD Ashikur Rahman, Naiem Mahadi, Hyeong Yeol Choi, Eun Joo Shin

{"title":"Advancing Sustainability in FDM 3D Printing: Development and Characterization of Bio-based TPU","authors":"MD Ashikur Rahman, Naiem Mahadi, Hyeong Yeol Choi, Eun Joo Shin","doi":"10.1007/s10924-025-03564-x","DOIUrl":"10.1007/s10924-025-03564-x","url":null,"abstract":"<div><p>Three-dimensional (3D) printing is a sustainable technology with diverse applications. This study synthesized bio-based TPUs (up to 92% bio content) using 1,5-pentamethylene diisocyanate (71% bio-based), polytrimethylene ether glycol (100% bio-based), and 1,4-butanediol (100% bio-based) by varying the OH/NCO molar ratio to create three filaments: PPB 3, PPB 4, and PPB 5. Melt-extrusion at 160–180 °C was used to optimize the filaments for FDM 3D printing, with rheological analysis ensuring consistent production. Auxetic designs, including auxetic struts, rotating squares, and star re-entrants, were 3D-printed to evaluate flexibility, energy absorption, and durability for high-performance garment applications. PPB 3 exhibited the best mechanical properties. The auxetic strut reached 100 ± 2.5%, strain at a stress of 0.60 ± 0.03 MPa, the rotating square design achieved 95 ± 2.1% strain at a stress of 0.20 ± 0.08 MPa, and the star re-entrant structure attained 170 ± 4.0% strain at a stress of 0.17 ± 0.03 MPa during the tensile test. The rotating square structure withstood more than 90 ± 2% strain under a 2.5 kN load in the compression test, highlighting its excellent deformability and resilience, demonstrating exceptional flexibility and durability for advanced textile applications.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2813 - 2830"},"PeriodicalIF":4.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Glass Fiber Reinforced Composite Produced with a Novel Matrix of Bio-based Unsaturated Polyester Resin made from 2,5-Furan Dicarboxylic Acid and Isosorbide 以2,5-呋喃二甲酸和异山梨酯为原料制备的新型生物基不饱和聚酯树脂为基体的玻璃纤维增强复合材料

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-03 DOI: 10.1007/s10924-025-03539-y

Samira Akbari, Jeevan Tom Joseph, Mikael Skrifvars, Sunil Kumar Ramamoorthy, Dan Åkesson

{"title":"Glass Fiber Reinforced Composite Produced with a Novel Matrix of Bio-based Unsaturated Polyester Resin made from 2,5-Furan Dicarboxylic Acid and Isosorbide","authors":"Samira Akbari, Jeevan Tom Joseph, Mikael Skrifvars, Sunil Kumar Ramamoorthy, Dan Åkesson","doi":"10.1007/s10924-025-03539-y","DOIUrl":"10.1007/s10924-025-03539-y","url":null,"abstract":"<div><p>In this study, a bio-based resin containing glycerol, isosorbide, and 2,5-furan dicarboxylic acid was used to produce a glass fiber reinforced composite. The thermomechanical properties of the resin were examined through dynamic mechanical analysis, thermogravimetric analysis, and differential scanning calorimetry, and were compared with those of commercially available unsaturated polyester resin and epoxy resin. Glass fiber composites were prepared using the synthesized bio-based resin, commercial unsaturated polyester resin, and commercial epoxy resin. Tensile tests, flexural tests, and aging tests were performed on all three types of composites and the results were compared. The findings suggest that the bio-based resin exhibits superior thermomechanical properties compared to the commercial resins. Bio-based resin demonstrates a high storage modulus of 4807 MPa and a loss modulus of 72 MPa at 25 ℃, along with a high glass transition temperature of 173 ℃. The flexural and tensile properties of the bio-based resin were better than that of the commercial resins. The composite produced from bio-based resin shows a flexural strength of 334 MPa and a tensile strength of 256 MPa. Aging results indicate that the synthesized bio-based resin was fairly stable at elevated temperatures. The outcome of this work shows that the bio-based glass fiber reinforced composite is a promising composite for high temperature applications.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2798 - 2812"},"PeriodicalIF":4.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-025-03539-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical and Electrical Properties of Polylactic Acid-Based Adsorbents for the Malachite Green Dye Removal with Potential Sensoric Application 聚乳酸基吸附剂去除孔雀石绿染料的物理和电学性能及其潜在的传感应用

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-02 DOI: 10.1007/s10924-025-03563-y

Khadiga Mohamed Abas, Miroslav Mrlik, Katarína Mosnáčková, Jaroslav Mosnáček

{"title":"Physical and Electrical Properties of Polylactic Acid-Based Adsorbents for the Malachite Green Dye Removal with Potential Sensoric Application","authors":"Khadiga Mohamed Abas, Miroslav Mrlik, Katarína Mosnáčková, Jaroslav Mosnáček","doi":"10.1007/s10924-025-03563-y","DOIUrl":"10.1007/s10924-025-03563-y","url":null,"abstract":"<div><p>New adsorbent films for the biosorption of malachite green (MG) dye from water were prepared using polylactic acid (PLA) as a renewable, degradable and thermoplastic polymer matrix, instead of widely used crosslinked systems. Polyaniline (PANI) and carbon fibers (CFs) were added to PLA through vigorous sonication followed by a casting technique to create electrically conductive PLA-based adsorbent films with enhanced functionality and adsorption properties. The composite films were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, dynamic mechanical thermal analysis, and BET-surface area measurements to identify their functionality as adsorbents for removing MG dye from water. The produced PLA/PANI/CFs composite films exhibited higher electrical conductivity and surface area compared to PLA and PLA/PANI films. The effects of adsorbent film composition, contact time, pH, and dye concentration on adsorption efficiency were assessed. The adsorption test confirmed effective removal of MG dye with maximum adsorption capacities of up to 60.1 mg/g. The isotherm data fitted the Langmuir model with an R<sup>2</sup> value of 0.99, implying a chemisorption process. The fabricated biosorbents disclosed the first-order kinetic model with high R<sup>2</sup> values and an exothermic reaction with the MG dye, as the process is stimulated by a decrease in temperature. Adsorbent regeneration and the significant effect of various MG concentrations on electric conductivity, which changed by two orders of magnitude, demonstrated the applicability of PLA/PANI/CFs composite films as potential MG dye sensors.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2776 - 2797"},"PeriodicalIF":4.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-025-03563-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous Release of Hydrophilic and Hydrophobic Drugs by a pH-sensitive Bio-carrier Based on Layered Double Hydroxides Decorated with l-serine-chitosan l-丝氨酸-壳聚糖修饰层状双氢氧化物的ph敏感生物载体同时释放亲疏水药物

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-02 DOI: 10.1007/s10924-025-03560-1

Soheyla Karimi, Hassan Namazi, Mohammad Aghazadeh

{"title":"Simultaneous Release of Hydrophilic and Hydrophobic Drugs by a pH-sensitive Bio-carrier Based on Layered Double Hydroxides Decorated with l-serine-chitosan","authors":"Soheyla Karimi, Hassan Namazi, Mohammad Aghazadeh","doi":"10.1007/s10924-025-03560-1","DOIUrl":"10.1007/s10924-025-03560-1","url":null,"abstract":"<div><p>Recently, the development of pH-responsive carriers has emerged as a promising area of research in cancer treatment. For these reasons, the purpose of the present work is to investigate layered double hydroxides decorated with l-serine-chitosan (LDH-DOX-CUR/Ser-CS) for the targeted release of doxorubicin (DOX, hydrophilic) and curcumin (CUR, hydrophobic) drugs to HepG2 liver cancer cells. Different methods such as FT-IR, FE-SEM, Zeta potential, EDX, and XRD analysis were employed to validate the structural properties of the developed bio-carriers. The encapsulation efficiencies for DOX and CUR were ∼96.8% and ∼83.6%, respectively. The drug release evaluation highlighted the pH-sensitive and controlled release capabilities of the LDH-DOX-CUR/Ser-CS bio-carriers to acidic tumor microenvironments. Both drugs’ release mechanisms also showed compliance with the Fickian diffusion from the Korsmeyer-Peppas model. Additionally, the bioavailability of the designed LDH against both HepG2 (liver cancer cell line) and L929 (normal liver cell line) cells was proved by cytotoxicity test. On the other hand, the LDH-DOX-CUR/Ser-CS bio-carriers exhibited higher cytotoxicity against HepG2 cells, which is caused by the controlled and targeted delivery of both drugs to these cells. The antibacterial, antioxidant, and blood compatibility properties of the engineered bio-carriers were confirmed by relevant in vitro techniques. In general, the results of this study showed that engineered bio-carriers have the necessary potential and efficiency for use as drug delivery bio-carriers in the biomedical field.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2758 - 2775"},"PeriodicalIF":4.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancing Biopolymer Composite Films: Molecular Interaction and Functional Properties of Chitosan and Chlorella vulgaris Blends for Sustainable Packaging 增强生物聚合物复合膜：壳聚糖和小球藻共混物的分子相互作用和功能特性

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-01 DOI: 10.1007/s10924-025-03557-w

Nur Nadiah Che Aziz, Nur Hidayah Mat Yasin, Fatmawati Adam, Siti Rahmah Esa

{"title":"Enhancing Biopolymer Composite Films: Molecular Interaction and Functional Properties of Chitosan and Chlorella vulgaris Blends for Sustainable Packaging","authors":"Nur Nadiah Che Aziz, Nur Hidayah Mat Yasin, Fatmawati Adam, Siti Rahmah Esa","doi":"10.1007/s10924-025-03557-w","DOIUrl":"10.1007/s10924-025-03557-w","url":null,"abstract":"<div><p>The study investigates the molecular interactions, physico-chemical and mechanical properties of biopolymer blends comprising chitosan (CS) and <i>Chlorella vulgaris</i> biomass (CVB) to explore the interaction between two components at the molecular level and to determine the influence of these interactions on the resulting composite film properties. Time-of-Flight Secondary Ion Mass Spectrometry (ToF–SIMS) analysis showed increased ion intensity, attributed to intermolecular interactions, especially between amine, sulfate, hydroxide, and hydrogen ions. Zeta potential provided insights into the electrokinetic behavior of the chitosan, microalgae and polyethylene in suspension, indicating their stability for aggregation. The morphological changes and functional groups resulted from chitosan-<i>Chlorella vulgaris</i> biomass (CS-CVB) composite film, attributed to an increased density of hydrogen bonds formed between the two components. When the CVB content was increased from 10 to 30%, the tensile strength of composite film increased by 40.66 MPa. The addition of CVB increased the moisture content but decreased the water solubility of composite films. Additionally, the higher content of CVB led to decrease in the water vapor permeability of the composite films. These findings illuminate the molecular mechanisms underlying the formation of the composite film material and application in food packaging. This addresses the demand for sustainable alternatives in the packaging industries while also promoting an eco-friendly environment.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2739 - 2757"},"PeriodicalIF":4.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Hierarchical 3D Architectured DMSA-Functionalized SA/GO-Cellulose Monoliths Via Direct Ink Writing: Enhanced Cu²⁺ Removal and Synergistic Adsorption Mechanisms 直接墨水书写的层次化三维dmsa功能化SA/ go -纤维素单块体：增强的Cu 2 +去除和协同吸附机制

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-04-01 DOI: 10.1007/s10924-025-03561-0

Huining Zhang, Zhongyu Shi, Baixiang Wang, Jianping Han, Xingmao Liu, Yi Zhao, Wenhui Niu

{"title":"Hierarchical 3D Architectured DMSA-Functionalized SA/GO-Cellulose Monoliths Via Direct Ink Writing: Enhanced Cu²⁺ Removal and Synergistic Adsorption Mechanisms","authors":"Huining Zhang, Zhongyu Shi, Baixiang Wang, Jianping Han, Xingmao Liu, Yi Zhao, Wenhui Niu","doi":"10.1007/s10924-025-03561-0","DOIUrl":"10.1007/s10924-025-03561-0","url":null,"abstract":"<div><p>To effectively deal with the hazards posed by copper ions in wastewater. In this study, 2,3-dimercaptosuccinic acid (DMSA)-modified graphene oxide (GO) printing inks were firstly prepared in a cellulose-based solution, followed by the use of sodium alginate (SA) to improve the rheological properties of the printing inks. Finally, three-dimensional hybrid network structures (DMSA-GO/CE) with excellent adsorption properties were prepared by direct ink writing (DIW) printing. Due to the supporting effect of cellulose, a well-developed pore network was formed inside the DMSA-GO/CE, which provided a faster transport channel and a larger storage space for the adsorption of copper ions. In addition, the introduction of -SH resulted in more abundant adsorption active sites for DMSA-GO/CE. The adsorption experiments showed that the maximum adsorption capacity of DMSA-GO/CE reached 250 mg/g at pH = 5.0 and 303.15 K, and the adsorption equilibrium was reached in 90 min. After five cycles, the removal rate of copper ions by DMSA-GO/CE only decreased by 13.5%, and the performance and structure remained stable. This superb adsorption capacity was not only attributed to the unique pore structure but also to the chelating effect of the -SH group introduced by DMSA. We performed dynamic adsorption column experiments, and the results derived from the Thomas model showed that the maximum adsorption saturation time was 3240 min. Therefore, the DMSA-GO/CE prepared by 3D printing can effectively alleviate the hazards caused by heavy metals, has the advantages of environmental friendliness and sustainable use, and has a broad application prospect in the field of green and efficient removal and recycling of heavy metals in wastewater.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2721 - 2738"},"PeriodicalIF":4.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Production of Polyhydroxyalkanoates (PHAs) by Pseudomonas reptilivora B-6bs Using Glucose as a Carbon Source 爬行假单胞菌B-6bs以葡萄糖为碳源生产聚羟基烷酸酯(PHAs

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-03-28 DOI: 10.1007/s10924-025-03559-8

Edwin Alejandro Morales-Bustamante, Wendolyne Monroy-Martínez, Ma. del Carmen Chávez-Parga, Juan Carlos González-Hernández

{"title":"Production of Polyhydroxyalkanoates (PHAs) by Pseudomonas reptilivora B-6bs Using Glucose as a Carbon Source","authors":"Edwin Alejandro Morales-Bustamante, Wendolyne Monroy-Martínez, Ma. del Carmen Chávez-Parga, Juan Carlos González-Hernández","doi":"10.1007/s10924-025-03559-8","DOIUrl":"10.1007/s10924-025-03559-8","url":null,"abstract":"<div><p>Plastics are a serious environmental problem because of their recalcitrant and environmentally toxic physicochemical properties. Biopolymers are efficient and environmentally friendly alternatives to petrochemical plastics. Polyhydroxyalkanoates (PHA) are biopolymers produced by some microorganisms (<i>Cupriavidus necator</i>, <i>Pseudomonas putida</i>, etc.) under stress and excessive sources of carbon. PHA is a viable alternative to plastics; however, it has a high production cost that is ten times greater than that of petroleum-derived plastics. This research aimed to evaluate the effects of glucose concentration as a carbon source and ammonium sulfate as a nitrogen source on the PHA produced by <i>Pseudomonas reptilivora</i>. After fermentation, the best treatment consisted of six treatments (20 g/L glucose and 1 g/L ammonium sulfate), and the specific growth rate (µ = 0.0546 h<sup>−1</sup>), productivity rate (rPHA = 0.0257 g/L·h), product/substrate yield (Y<sub>P/S</sub> = 0.1305 g/g) and average partitioning rate (δ = 0.0787 h<sup>−1</sup>) were determined. In treatment 3 (10 g/L glucose and 1 g/L ammonium sulfate), the best biomass/substrate yield (Y<sub>X/S</sub>) was 0.2815 g/g. The highest PHA production was 1.544 ± 0.0331 g/L when 20 g/L glucose and 1 g/L ammonium sulfate were used, which was statistically significant, with <i>P</i>-values of 0.0005 and 0.0037, respectively, at the 95% confidence level, suggesting that higher glucose concentrations and higher ammonium sulfate concentrations that increase cell growth are the best conditions for PHA production.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2708 - 2720"},"PeriodicalIF":4.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigating the Degradation of Tannin Furanic Foams in Soil Environments: Experimental Insights 研究土壤环境中单宁呋喃泡沫的降解：实验见解

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-03-27 DOI: 10.1007/s10924-025-03553-0

Jonas Eckardt, Paolo Carletti, Jakub Grzybek, Giancarlo Renella, Gianluca Tondi

{"title":"Investigating the Degradation of Tannin Furanic Foams in Soil Environments: Experimental Insights","authors":"Jonas Eckardt, Paolo Carletti, Jakub Grzybek, Giancarlo Renella, Gianluca Tondi","doi":"10.1007/s10924-025-03553-0","DOIUrl":"10.1007/s10924-025-03553-0","url":null,"abstract":"<div><p>In the search for bio-based alternatives to petroleum-based materials, extensive research has been carried out on tannin-based foams over the last decades, demonstrating their potential use as insulation materials for buildings. These foams have been studied in depth for their chemical and physical properties and were already considered for upscaling. However, concerns remain about the end of their life cycle. While tannin foams can be partially recycled in new tannin foams, reused as ammonia scavenger, or thermally valorised, their impact on soil upon disposal or when potentially used as ammonia mitigators in agriculture remains unclear. This study investigated the degradation dynamics and potential effects of tannin furanic polymer on soil health. A decrease in the mass of the tannin foam particles by about 10% within 24 weeks indicated microbial degradation, which was further enhanced by the occurrence of leachable fractions throughout the experiment. Chemically, this degradation was associated with a reduction in carbohydrates and/or furanics, leading to a relative increase in aromatic components, paralleled by increased β-glucosidase activity. Phenol oxidase and arylesterase activities fluctuated depending on time and soil type, suggesting their roles in different stages of phenolic degradation, while catechol oxidase activity either decreased or remained unchanged. Enzymatic activities for FDA and β-glucosidase, indicators of soil health and microbial activity, tendentially increased in the presence of tannin foam, showing that the tested foam had no negative effect on general soil microbial activity.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2698 - 2707"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-025-03553-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable inverse-volcanized Nanocomposite Based on Functionalized CNW and Sulphur in Molten State and its Antibacterial Properties 基于功能化CNW和熔融态硫的可持续反火山化纳米复合材料及其抗菌性能

IF 4.7 3区工程技术

Journal of Polymers and the Environment Pub Date : 2025-03-27 DOI: 10.1007/s10924-025-03558-9

Shokoofeh Bahadori, Abbas Dadkhah Tehrani, Mohammad Hossein Babaabbasi

{"title":"Sustainable inverse-volcanized Nanocomposite Based on Functionalized CNW and Sulphur in Molten State and its Antibacterial Properties","authors":"Shokoofeh Bahadori, Abbas Dadkhah Tehrani, Mohammad Hossein Babaabbasi","doi":"10.1007/s10924-025-03558-9","DOIUrl":"10.1007/s10924-025-03558-9","url":null,"abstract":"<div><p>Cellulose nanowhisker is a low-cost and safe whisker-like bionanoparticle with unique properties which widely has been used for fabrication of various green nanocomposites and copolymers to moderate the dependence on petro-based plastics. In the current study, a new green Sulphur-rich nanocomposite was fabricated using invers-vulcanization of molten elemental Sulphur in presence of cellulose nanowhisker maleate for the first time. The Sulphur content of nanocomposites was varied in the range of 70–90%. Cellulose nanowhisker prepared from cotton linter through acid hydrolysis process and then reacted with maleic anhydride to introduce unsaturated functional groups on its surface. It was then used as macromonomer to stabilize poly Sulphur bi-radicals in molten state and led to formation of crosslinked structures. The successful preparation of nanocomposites was confirmed utilizing common spectroscopic techniques including FT-IR, Raman spectroscopy, TGA, SEM, and XRD. The results showed that composite containing 80% sulphur (CNWMA/S80) was an amorphous compound with homogenous surface morphology completely different from S<sub>8</sub>. Also, the nanocomposites were stable up to 300 <sup>ο</sup>C. In addition, they showed antibacterial activity against <i>Pseudomonas aeruginosa.</i> Overall, the new Sulphur rich nanocomposites are green hybrid materials that can presented new promising avenue for sustainable polymeric materials as well as potential solution for environmental and health concerns related to abundantly available Sulphur as challenging raw material produced in petroleum and gas refining process.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 6","pages":"2684 - 2697"},"PeriodicalIF":4.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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