ACS Applied Polymer Materials最新文献_第6页

Atomistic Modeling of Cross-Linking in Epoxy-Amine Resins: An Open-Source Protocol 环氧胺树脂交联的原子建模：一个开源协议

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.4c0420810.1021/acsapm.4c04208

Marina Provenzano, Francesco Maria Bellussi, Matteo Fasano* and Hernán Chávez Thielemann,

{"title":"Atomistic Modeling of Cross-Linking in Epoxy-Amine Resins: An Open-Source Protocol","authors":"Marina Provenzano, Francesco Maria Bellussi, Matteo Fasano* and Hernán Chávez Thielemann, ","doi":"10.1021/acsapm.4c0420810.1021/acsapm.4c04208","DOIUrl":"https://doi.org/10.1021/acsapm.4c04208https://doi.org/10.1021/acsapm.4c04208","url":null,"abstract":"Atomistic modeling has become an extensively used method for studying thermosetting polymers, particularly in the analysis and development of high-performance composite materials. Despite extensive research on the topic, a widely accepted, standardized, flexible, and open-source approach for simulating the cross-linking process from precursor molecules has yet to be established. This study proposes, tests, and validates a Molecular Dynamics (MD) protocol to simulate the cross-linking process of epoxy resins. We developed an in-house code based on Python and LAMMPS, enabling the generation of epoxy resin structures with high degrees of cross-linking. In our work, the epoxy network is dynamically formed within the MD simulations, modeling the chemical bonding process with constraints based on the distance between the reactive sites. To validate our model against experimental data from the literature, we then computed the density, thermal conductivity, and elastic response. The results show that the produced structures align well with experimental evidence, validating our method and confirming its feasibility for further analyses and in silico experiments. Beyond the case study presented in this work, focusing on bisphenol A diglycidyl ether (DGEBA) epoxy resin and diethylenetriamine (DETA) as curing agents in a 5:2 ratio, our approach can be easily adapted to investigate different epoxy resins.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4876–4884 4876–4884"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c04208","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biphenyl-Based High Thermal Conductivity Films with Intrinsic Self-Healing Properties 具有自愈特性的联苯基高导热薄膜

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.4c0414310.1021/acsapm.4c04143

Yanhan Tao, Hui Yang, Zhijun Liu, Guoming Yuan, Kunxin Wang, Kun Wu* and Jun Shi,

{"title":"Biphenyl-Based High Thermal Conductivity Films with Intrinsic Self-Healing Properties","authors":"Yanhan Tao, Hui Yang, Zhijun Liu, Guoming Yuan, Kunxin Wang, Kun Wu* and Jun Shi, ","doi":"10.1021/acsapm.4c0414310.1021/acsapm.4c04143","DOIUrl":"https://doi.org/10.1021/acsapm.4c04143https://doi.org/10.1021/acsapm.4c04143","url":null,"abstract":"One kind of liquid crystal monomer (LM) based on a biphenyl mesomorphic unit was synthesized from 4,4′-biphenyldicarboxaldehyde and 4-amino-3-methylphenol. Then two films (LM/TPTMP and LM/PETMP) were prepared by reacting the two thiols (TPTMP and PETMP) with the liquid crystal monomer (LM), respectively. These two films simultaneously exhibit intrinsically high thermal conductivity and intrinsic self-healing properties. Due to the presence of biphenyl liquid crystal units in LM and its highly symmetrical structure, a distinct nematic liquid crystal phase can be observed through a polarized optical microscope when heated to the liquid crystal phase transition temperature. The crystallite size of LM was calculated as 37 nm by an X-ray diffractometer (XRD). The films exhibit outstanding thermal conductivity, with LM/TPTMP achieving a thermal conductivity in the horizontal direction (λ∥) of 0.700 W/(m·K), which is significantly higher than that of epoxy resin-based intrinsic thermal conductivity materials in the range of 0.2–0.4 W/(m·K). The introduction of thiol flexible segments endowed the materials with good mechanical strength, with LM/PETMP demonstrating a tensile strength of 4.74 MPa and an elongation at break of 42.57%. Furthermore, the incorporation of dynamic imine bonds imparted excellent self-healing properties to the films. Specifically, LM/PETMP could retain 73% and 65.2% of its original tensile strength after one and three cycles of self-healing behavior, respectively. This type of high intrinsic thermal conductivity (λ) and excellent intrinsic self-healing performance film is expected to solve the problems of safety and service life of high-precision smart devices.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4813–4824 4813–4824"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867474","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}

引用次数: 0

Triple Dynamic Network-Enabled Vitrimer for Repairable and Recyclable Carbon Fiber-Reinforced Composites 用于可修复和可回收碳纤维增强复合材料的三重动态网络激活聚合物

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.5c0018110.1021/acsapm.5c00181

Akash Basu, Sampath Parasuram, Supriya H, Akshay Sunil Salvi, S. Kumar and Suryasarathi Bose*,

{"title":"Triple Dynamic Network-Enabled Vitrimer for Repairable and Recyclable Carbon Fiber-Reinforced Composites","authors":"Akash Basu, Sampath Parasuram, Supriya H, Akshay Sunil Salvi, S. Kumar and Suryasarathi Bose*, ","doi":"10.1021/acsapm.5c0018110.1021/acsapm.5c00181","DOIUrl":"https://doi.org/10.1021/acsapm.5c00181https://doi.org/10.1021/acsapm.5c00181","url":null,"abstract":"Conventional thermosets such as epoxies offer superior mechanical properties but lack recyclability, posing environmental challenges and sustainability concerns. In this context, vitrimer, which offers “thermoset-like” mechanical properties and “thermoplastic-like” flow behavior, emerges as a promising alternative. Herein, a triple dynamic covalent adaptable network (CAN) was installed in the epoxy system to offer recyclability without compromising the mechanical properties. This “epoxy vitrimer” was used to design a carbon fiber-reinforced vitrimer epoxy (CFRVE) laminate. Fourier transform infrared (FTIR) was used to confirm the formation of cross-links with epoxide groups. The tensile strength for these systems is in the range of 43–53 MPa depending on the number of preinstalled CANs, which compares well with the conventional epoxies. Thermal and mechanical analyses of the vitrimer epoxy systems reveal exceptional properties, including degradation temperatures above 250 °C and an activation energy of 56 kJ/mol for stress relaxation. CFRVE laminates, fabricated via vacuum-assisted resin transfer molding (VARTM), exhibit 38 MPa interlaminar shear strength (ILSS) and 520 MPa flexural strength (FS), which are comparable to those of conventional carbon fiber-reinforced epoxy (CFRE) laminates. The CFRVE laminate exhibits a remarkable self-healing efficiency of 56% in ILSS. Furthermore, the vitrimer matrix enables nondestructive recovery of carbon fibers (CFs) and reusable degradation products, offering a closed-loop recycling solution for CFRVE composites.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4931–4943 4931–4943"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867554","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}

引用次数: 0

Tailored Architecture for Enhanced Self-Healing: Visible Light-Responsive Polyacrylates with Dynamic Se–Se Bonds and Fluorinated Surfaces 为增强自我修复量身定制的架构：具有动态Se-Se键和氟化表面的可见光响应聚丙烯酸酯

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.5c0019210.1021/acsapm.5c00192

Hong Yang, Yan Bao*, Chao Liu*, Sike Yu, Ruyue Guo, Wenbo Zhang and Zhen Jiao,

{"title":"Tailored Architecture for Enhanced Self-Healing: Visible Light-Responsive Polyacrylates with Dynamic Se–Se Bonds and Fluorinated Surfaces","authors":"Hong Yang, Yan Bao*, Chao Liu*, Sike Yu, Ruyue Guo, Wenbo Zhang and Zhen Jiao, ","doi":"10.1021/acsapm.5c0019210.1021/acsapm.5c00192","DOIUrl":"https://doi.org/10.1021/acsapm.5c00192https://doi.org/10.1021/acsapm.5c00192","url":null,"abstract":"Polyacrylate coatings often suffer from mechanical and hydrolytic damage, which limits their durability due to the inherent nature of free radical polymerization and the negative effects of hydrophilic components on water resistance. In this study, we synthesized a series of visible light self-healing and hydrophobic polyacrylates (DiSe-PMBH) featuring dynamic diselenide bonds in the backbone and fluorinated hydrophobic chains in the side chains. These were prepared through atom transfer radical polymerization and substitution reactions. A custom-made initiator (DiSe-Br), containing dynamic diselenide bonds and bifunctional chain-initiating groups, was synthesized to initiate the polymerization of butyl acrylate, methyl methacrylate, and fluorodecyl acrylate. The resulting polyacrylates demonstrated excellent mechanical properties, self-healing abilities, and recyclability, achieving over 95% healing efficiency under visible light irradiation for 2 h. Additionally, the fluorinated side chains provided strong antifouling and self-cleaning properties. This approach offers a promising method for developing durable, self-healing, and antifouling polyacrylate materials.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4944–4954 4944–4954"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867454","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}

引用次数: 0

Tough, Wide-Temperature-Resistant, and Water-Retentive Conductive Hydrogel for Human Motion Sensing 坚韧，宽耐温，保水性导电水凝胶人体运动传感

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.5c0003510.1021/acsapm.5c00035

You-Sheng Zhang, Chien-Yin Lin and Mei-Yu Yeh*,

{"title":"Tough, Wide-Temperature-Resistant, and Water-Retentive Conductive Hydrogel for Human Motion Sensing","authors":"You-Sheng Zhang, Chien-Yin Lin and Mei-Yu Yeh*, ","doi":"10.1021/acsapm.5c0003510.1021/acsapm.5c00035","DOIUrl":"https://doi.org/10.1021/acsapm.5c00035https://doi.org/10.1021/acsapm.5c00035","url":null,"abstract":"Advances in artificial intelligence and the Internet of Things have driven the development of innovative materials for human-machine interfaces, touch panels, and tactile sensors. To meet the performance and functional demands of high-end wearable products, these materials must maintain high conductivity, flexibility, stretchability, and transparency in both low- and high-temperature environments. In this study, we developed an innovative hydrogel, SxGy, by copolymerizing acrylamide (AAM), sulfobetaine vinylimidazole (SBVI), and methacrylated lysine (LysMA), combined with dialdehyde-functionalized poly(ethylene glycol) (DF-PEG) and glycerol, where x and y represent SBVI and glycerol content, respectively. This formulation enabled dynamic hydrogen bonding and covalent imine bonds, achieving rapid gelation (under 4 min at room temperature) and producing a stable hydrogel. Experimental results showed that the S5.0G0.25 hydrogel performed excellently across temperatures from −20 to 50 °C, exhibiting exceptional toughness (0.562 MJ/m3) at room temperature, retaining 71.5% toughness at −20 °C, and increasing toughness by 210% at 50 °C. It withstood over 500 cycles without significant electrical performance degradation and maintained good transparency across the temperature range. Additionally, the hydrogel demonstrated outstanding water retention, maintaining nearly constant volume for 120 days. This breakthrough positions the hydrogel as a promising material for next-generation wearable sensors and flexible electronics, paving the way for durable, transparent devices in extreme environments.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4918–4930 4918–4930"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867473","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}

引用次数: 0

Fire Retardant Treatments for Polyamide 6 and 66: Advances and Trends over the Last Five Years 聚酰胺6和66的阻燃处理：过去五年的进展和趋势

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.5c0029110.1021/acsapm.5c00291

Yikang Wang, Li Cui, Junfeng Zhang, Jiajia Shen, Huawei Xu, Zhijun Zhou, Yanyan Li* and Meifang Zhu*,

{"title":"Fire Retardant Treatments for Polyamide 6 and 66: Advances and Trends over the Last Five Years","authors":"Yikang Wang, Li Cui, Junfeng Zhang, Jiajia Shen, Huawei Xu, Zhijun Zhou, Yanyan Li* and Meifang Zhu*, ","doi":"10.1021/acsapm.5c0029110.1021/acsapm.5c00291","DOIUrl":"https://doi.org/10.1021/acsapm.5c00291https://doi.org/10.1021/acsapm.5c00291","url":null,"abstract":"As pivotal engineering materials in the plastics and textile industries, polyamide 6 (PA6) and polyamide 66 (PA66) require breakthroughs in flame retardancy to unlock or expand their potential applications. This review systematically summarizes the research progress of flame retardant (FR) PA6 and PA66 over the past five years, providing a multidimensional analysis centered on two critical application domains: FR textiles and FR composites. In the domain of PA6 and PA66 FR textiles, this review highlights industry progress in the development of ecofriendly FR coating technologies, enhancement in laundering durability, optimization of wear comfort, and integration of multifunctional designs. The focus for composite materials shifts to innovative strategies involving halogen-free and intrinsic FR formulations alongside approaches to enhance mechanical performance and achieve functional synergies. This review further elucidates the key challenges faced in the industrialization of FR PA6 and PA66. Beyond refining the laundering–wear performance of textiles and the mechanical robustness of composites, emphasis should be placed on dual-integration strategies, such as harmonizing flame retardancy with environmental sustainability and multifunctionality. These insights establish a theoretical framework to guide the engineering deployment of FR PA6/PA66 in specialized high-performance fields.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4677–4693 4677–4693"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867555","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}

引用次数: 0

Direct Writing of Conductive Microstructures inside a Thermoresponsive Hydrogel 热响应性水凝胶内导电微结构的直接写入

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.4c0403210.1021/acsapm.4c04032

Ken Kashikawa, Hiroaki Onoe and Mitsuhiro Terakawa*,

{"title":"Direct Writing of Conductive Microstructures inside a Thermoresponsive Hydrogel","authors":"Ken Kashikawa, Hiroaki Onoe and Mitsuhiro Terakawa*, ","doi":"10.1021/acsapm.4c0403210.1021/acsapm.4c04032","DOIUrl":"https://doi.org/10.1021/acsapm.4c04032https://doi.org/10.1021/acsapm.4c04032","url":null,"abstract":"The integration of soft electronic devices with biological systems has garnered increasing attention for applications such as bioinspired soft robotics and wearable health monitors. These devices are designed to interface with biological surfaces or tissues, mimicking the transmission of electrical signals through neural tissues while ensuring high biocompatibility and flexibility. Conductive polymer hydrogels, combining conductive polymers and hydrogels, have emerged as promising materials owing to their flexibility, stretchability, and biocompatibility. In the realization of advanced soft electronic devices, it is key to employ materials with high flexibility and biocompatibility and, moreover, develop techniques for the fabrication of precise and localized conductive structures inside hydrogels. In this study, we demonstrated the spatially selective polymerization of conductive polymers inside a thermoresponsive hydrogel. A poly(N-isopropylacrylamide) (PNIPAM) hydrogel was immersed in a precursor solution of polyaniline (PANI), and polymerization was induced by femtosecond laser pulse irradiation. Conductive polymer microstructures were successfully fabricated inside the hydrogel. Furthermore, using the thermal responsiveness of the PNIPAM hydrogel, we demonstrated that the electrical resistance of the PANI structures changed in response to temperature. The present method provides a strategy for the precise and localized fabrication of conductive structures inside hydrogels, offering an approach to the fabrication of soft electronic devices.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4771–4778 4771–4778"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867458","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}

引用次数: 0

Electroactive Artificial Muscle with Macroscopic Stroke Enabled by Liquid Crystal Plasticizing 液晶塑化实现宏观行程的电活动人工肌肉

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.4c0390510.1021/acsapm.4c03905

Haijie Zhou, Caiyan Wang, Ying Jian, Jiaye Hu, Lei Shi* and Bin Li*,

{"title":"Electroactive Artificial Muscle with Macroscopic Stroke Enabled by Liquid Crystal Plasticizing","authors":"Haijie Zhou, Caiyan Wang, Ying Jian, Jiaye Hu, Lei Shi* and Bin Li*, ","doi":"10.1021/acsapm.4c0390510.1021/acsapm.4c03905","DOIUrl":"https://doi.org/10.1021/acsapm.4c03905https://doi.org/10.1021/acsapm.4c03905","url":null,"abstract":"Electroactive artificial muscles, represented by dielectric elastomer actuators, provide advantages such as flexibility, adaptability, and lightweight properties, enabling applications in soft electronics, soft robotics, and bionic machinery. However, dielectric elastomer actuators are limited by a constrained driving stroke of less than 0.2 mm despite achieving an area strain that exceeds 200%. The restricted stroke necessitates a complex structural design for actuators, often involving multilayer configurations and rolled elastomer designs, making it difficult to achieve macroscopic strokes like biological muscles. Additionally, dielectric elastomers typically exhibit considerable hysteresis (1 kJ m–3 to 2 MJ m–3). Inspired by biological muscles, which possess a significant amount of sarcoplasm that reduces hysteresis performance, we propose a strategy using a polyacrylate elastomer plasticized with the electroactive liquid 5CB. By adding 70% 5CB, the liquid fillers effectively lower polymer chains friction and incorporate dipole groups, which reduces hysteresis by 3 orders of magnitude and improves the electrical-mechanical coupling signals. Consequently, our PTMCHA/5CB gel muscle demonstrates an impressive stroke of 3.06 mm under a low electric field of 1.3 kV mm–1, which is 20 times greater than the stroke achieved by the current state-of-the-art single-layer dielectric elastomer. This gel presents promising opportunities for soft actuators and intelligent sensing systems.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"4885–4894 4885–4894"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867472","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}

引用次数: 0

Green, Cross-Linked, Curcumin-Loaded Konjac Glucomannan/Cellulose Nanocrystal Nanofiber Membranes 绿色，交联，姜黄素负载魔芋葡甘露聚糖/纤维素纳米晶体纳米纤维膜

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-03 DOI: 10.1021/acsapm.5c0024410.1021/acsapm.5c00244

Wei Sun, Yansong Yao, Junping Ju*, Hua Yuan and Yeqiang Tan*,

{"title":"Green, Cross-Linked, Curcumin-Loaded Konjac Glucomannan/Cellulose Nanocrystal Nanofiber Membranes","authors":"Wei Sun, Yansong Yao, Junping Ju*, Hua Yuan and Yeqiang Tan*, ","doi":"10.1021/acsapm.5c0024410.1021/acsapm.5c00244","DOIUrl":"https://doi.org/10.1021/acsapm.5c00244https://doi.org/10.1021/acsapm.5c00244","url":null,"abstract":"High-performance nanofiber membranes with simultaneously satisfactory water resistance and active and rapid degradation characteristics have received growing attention in food packaging. However, the agglomeration of a konjac glucomannan (KGM) aqueous solution may occur in high concentration, and it is difficult to prepare uniform nanofibers by electrospinning technology. This study presented a green approach for fabricating nanocomposite nanofiber membranes via electrospinning with konjac glucomannan (KGM) and cellulose nanocrystals (CNCs) as raw materials. Citric acid (CA) was added as a green cross-linker to the aforementioned matrix, resulting in enhanced physicochemical properties. We investigated the effects of incorporation of various CNC contents (2.0–8.0 wt %, based on the entire solution’s weight) and CA contents (0.2–0.6 wt %, based on the weight of KGM) on the microstructure and rheological behavior of the electrospun nanofibers. Results demonstrated that esterification interactions occurred in the nanofiber membranes between the molecular chains of KGM, CNC, and CA. Moreover, the nanocomposite membranes were subjected to esterification using stearic acid and loaded with curcumin for enhancing their water resistance and antibacterial and biodegradable properties. Further investigations confirmed that the nanocomposite membranes exhibited considerable pH-sensitive variations, turning from pink-red to deep red when the pH was increased from 7 to 13. The nanocomposite membranes exhibit exceptional potential as multifunctional components in advanced active packaging systems.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 8","pages":"5003–5012 5003–5012"},"PeriodicalIF":4.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867522","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}

引用次数: 0

Enhancing Triboelectric Nanogenerator Performance with Metal–Organic Framework Composite Nanofibers: Applications in Public Transit Monitoring, Staircase Alerts, and Security 金属-有机框架复合纳米纤维增强摩擦电纳米发电机性能：在公共交通监控、楼梯警报和安全方面的应用

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2025-04-02 DOI: 10.1021/acsapm.4c0352910.1021/acsapm.4c03529

Lakshakoti Bochu, Anjaly Babu, Supraja Potu, Uday Kumar Khanapuram, Rakesh Kumar Rajaboina* and Prakash Kodali*,

{"title":"Enhancing Triboelectric Nanogenerator Performance with Metal–Organic Framework Composite Nanofibers: Applications in Public Transit Monitoring, Staircase Alerts, and Security","authors":"Lakshakoti Bochu, Anjaly Babu, Supraja Potu, Uday Kumar Khanapuram, Rakesh Kumar Rajaboina* and Prakash Kodali*, ","doi":"10.1021/acsapm.4c0352910.1021/acsapm.4c03529","DOIUrl":"https://doi.org/10.1021/acsapm.4c03529https://doi.org/10.1021/acsapm.4c03529","url":null,"abstract":"Triboelectric nanogenerators (TENGs) are known for their compact size, cost-effectiveness, and high efficiency, offering a renewable and green energy solution. The choice of materials used in TENG construction plays a crucial role in determining their performance and applications. Metal–organic frameworks (MOFs), with their unique architecture and functionality, have emerged as promising materials for TENG applications. In this study, we designed and synthesized a ZIF-67/polyvinyl alcohol (PVA) (ZP) composite nanofiber mat using the electrospinning method. The incorporation of ZIF-67 particles into PVA enhanced the TENG’s performance, attributed to improved surface properties and strong electron-donating capabilities. When tested under hand tapping, the ZP-TENG demonstrated an output voltage of 416 V and a current of 185 μA, with a power density of 7.18 W/m2 at a load resistance of 4 MΩ. This high power density enabled the ZP-TENG to power 480 LEDs with each hand tap momentarily, and when combined with energy management circuits, it was able to continuously power a calculator through a capacitor and bridge rectifier circuit. Additionally, the ZP-TENG was applied in real-time public monitoring systems, staircase step indicators, and indoor security enhancements, utilizing an Arduino Nano 33 IoT board and the Blynk cloud platform. This work highlights the potential of MOF/polymer-based TENGs for improved output performance and paves the way for exploring advanced materials in TENG technology.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 7","pages":"4132–4141 4132–4141"},"PeriodicalIF":4.4,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814717","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}

引用次数: 0