ACS Applied Polymer Materials最新文献

{"title":"Toughening of Infusible Epoxy Resins by Core/Shell Nanoparticles Plus a Soluble Thermoplastic Polymer and Their Synergistic Mechanism at the Mesoscopic Morphological Level","authors":"Zhengyan Guo,&nbsp;Na Ning,&nbsp;Gang Zhou,&nbsp;Yan Li,&nbsp;Lei Chen,&nbsp;Shicheng Feng,&nbsp;Yi Wei* and Weiping Liu,&nbsp;","doi":"10.1021/acsapm.4c0377910.1021/acsapm.4c03779","DOIUrl":"https://doi.org/10.1021/acsapm.4c03779https://doi.org/10.1021/acsapm.4c03779","url":null,"abstract":"<p >To develop high-performance epoxy resins (EP) that can be used to produce aircraft primary structure composite parts via vacuum-assisted resin infusion technology (VARI), low resin viscosity and high fracture toughness requirements must be met as well as maintaining the usual thermomechanical properties. Polymeric core/shell nanoparticles have demonstrated effectiveness in achieving these objectives, but their use at high level causes reduction of composites’ glass transition temperature and modulus. By investigating the fracture toughness of 180 °C-cured epoxy resins containing poly(2-ethylhexyl acrylate) core/poly(methyl methacrylate) shell nanoparticles (E/M), together with a poly(ether sulfone) (PES) thermoplastic polymer, the synergistic toughening effect is obtained and high fracture toughness is achieved, which is an over 101% increase in <i>K</i>_<i>IC</i> over the untoughened resin, without lowering the resin properties and still having viscosities suitable for resin infusion. Morphological studies using scanning electron microscopy (SEM) led to a mesoscopic toughening model comprising macroscale “core/shell particles” formed with thermoplastic PES domains as “cores” and the polyacrylate core/shell nanoparticles as the “shells”, resulting in much more effective functioning of common toughening mechanisms, i.e., crack deflection, bridging, and pinning, plastic deformation, and shear banding.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"3085–3092 3085–3092"},"PeriodicalIF":4.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608864","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":"Polyelectrolyte Multilayer-Based Nanofiltration Membranes with Tunable Performance for Target Pollutants","authors":"Jamila Bashir,&nbsp;Shazia Ilyas*,&nbsp;Araib Asif,&nbsp;Wiebe M. de Vos,&nbsp;Asim Laeeq Khan and Faheem Hassan Akhtar,&nbsp;","doi":"10.1021/acsapm.4c0390610.1021/acsapm.4c03906","DOIUrl":"https://doi.org/10.1021/acsapm.4c03906https://doi.org/10.1021/acsapm.4c03906","url":null,"abstract":"<p >This study demonstrates the preparation of nanofiltration (NF) membranes using the high degree of tunability of an asymmetric polyelectrolyte multilayer (PEM) coating. The developed membranes are much more open with a high molecular weight cutoff (MWCO ∼1000 Da) compared to typical PEM NF membranes (MWCO ∼300–500 Da). A layer-by layer (LbL) assembly approach is applied to prepare PEM coatings to serve as the active separation layer of membranes. This approach allows additional control over the fine-tuning of the membrane’s effective pore size and surface chemistry (charge density, hydrophilicity), which are important aspects in membrane separation processes. The membrane selectivity can be further tailored by utilizing asymmetric PEM coatings, where the first support pores are coated with loose PEM followed by the application of a denser and thinner PEM separation layer. Following this approach, PEM-based NF membranes were prepared using poly(allylamine hydrochloride) (PAH)/poly(styrenesulfonate) (PSS) on a charged flat-sheet polyether sulfone (PES) membrane support prepared via a non-solvent induced phase inversion (NIPS) process. Coating with PAH/PSS quickly filled the support pores, and the selectivity was further enhanced by subsequent coating by replacing PSS with poly(acrylic acid) (PAA) to form (PAH/PAA) multilayers, followed by cross-linking. This led to significantly improved membrane performance while maintaining the thin film composite design. Further, it is shown that the PEM structure can itself be carefully tuned toward the removal of specific pollutants from specific feeds. The resulting membranes are highly hydrophilic, as confirmed through contact angle results, and rejection is governed by Donnan and size exclusion mechanisms, with retentions of divalent ions (up to 80%), dyes (100%), and neutral solutes (∼90%). These membranes can be an excellent choice for the simultaneous treatment of water and resource recovery applications in the textile industry to retain/recover dyes and heavy metal ions.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"3147–3156 3147–3156"},"PeriodicalIF":4.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608919","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":"Perfluorocarbon-Loaded Poly(lactide-<i>co</i>-glycolide) Nanoparticles from Core to Crust: Multifaceted Impact of Surfactant on Particle Ultrastructure, Stiffness, and Cell Uptake.","authors":"Naiara Larreina Vicente, Mangala Srinivas, Oya Tagit","doi":"10.1021/acsapm.4c03360","DOIUrl":"10.1021/acsapm.4c03360","url":null,"abstract":"<p><p>Poly(lactide-<i>co</i>-glycolide) nanoparticles (PLGA NPs) loaded with Perfluoro-15-crown-5-ether (PFCE) have been developed for imaging applications. A slight modification of the formulation led to the formation of two distinct particle ultrastructures: multicore particles (MCPs) and core-shell particles (CSPs), where poly(vinyl alcohol) (PVA), a nonionic surfactant, and sodium cholate (NaCh), an anionic surfactant, were used, respectively. Despite their similar composition and colloidal characteristics, these particles have previously demonstrated significant differences in their <i>in vivo</i> distribution and clearance. We hypothesize that these differences are collectively driven by variations in their structural, chemical, and mechanical properties, which are investigated in this study. Nanomechanical characterizations of MCPs and CSPs by atomic force microscopy (AFM) revealed elastic modulus values of 54 and 270 MPa in water, respectively, indicating a better permeability and deformability of the multicore ultrastructure. The impact of the surfactant on the NP surface chemistry was evidenced by their protein corona, which was significantly greater in the CSPs. Additionally, an important amount of residual NaCh was found on the surface of CSPs, which formed strong interactions with bovine serum albumin (BSA), accounting for the difference in protein coronas and surface chemistry. Surprisingly, <i>in vitro</i> cell uptake studies showed a higher uptake of MCPs by RAW macrophages but a preference for CSPs by HeLa cells. We conclude that for this specific formulation and in this stiffness range, mechanical differences have a stronger impact in HeLa cells, while surface properties and chemical recognition play a more important role in uptake by macrophages. Overall, the extent to which a physical factor impacts cell uptake is highly dependent on the specific uptake mechanism. With this study, we provide an integrated perspective on the role of different surfactants in the particle formation process, their impact on particle ultrastructure, mechanical properties, and surface chemistry, and the overall effect on cell uptake <i>in vitro</i>.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"2864-2878"},"PeriodicalIF":4.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11915196/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143661642","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}

{"title":"Electro-thermally Responsive Shape-Memory SEBS Composites with Enhanced Performance through Integration of Myristoylated Cellulose Nanofibers and Silver Nanowires","authors":"Purbasha Maji,&nbsp;Ajay Haridas CP,&nbsp;Titash Mondal and Kinsuk Naskar*,&nbsp;","doi":"10.1021/acsapm.4c0399110.1021/acsapm.4c03991","DOIUrl":"https://doi.org/10.1021/acsapm.4c03991https://doi.org/10.1021/acsapm.4c03991","url":null,"abstract":"<p >Segmented styrenic block copolymers, such as poly(styrene-<i>b</i>-ethylene-butylene-<i>b</i>-styrene) (SEBS), exhibit temperature-sensitive mechanical properties that can be fine-tuned, making them highly promising for shape-memory applications. So far, the addition of crystalline materials not only enhanced the shape memory via solid-to-liquid transition but also increased the risk of leakage during repeated cycles. To address this issue, we explored the self-assembly phenomenon of acylated cellulose as a phase-change material (PCM). They work as a stable PCM when they are grafted onto the cellulose surface. We improved the shape-memory performance of SEBS by incorporating myristoylated cellulose nanofibers (MCN) with a DS of 2.4 into the matrix and systematically investigated how varying the MCN content affects the mechanical properties, torsional shape memory, and residual strain of SEBS. The addition of MCN enhanced the dynamic mechanical properties, reduced the residual strain, and facilitated the formation of an additional crystalline phase within SEBS. The crystalline phase showed a melting temperature, <i>T</i>_m, of 64–66 °C. The optimized SEBS/MCN composite demonstrated 92.6% thermoresponsive shape fixity and 92.8% shape recovery across three cycles. To achieve an electrically driven shape-memory effect, we further doped the composite with silver nanowires (AgNWs). The final composite demonstrated excellent electro-thermal heating, reaching 80 °C within 30 s. It achieved 75% shape recovery within 5 min at just 8 V. This electro-thermal shape-memory composite is well suited for applications in aerospace, smart grippers, actuators, and soft robotics.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"3188–3201 3188–3201"},"PeriodicalIF":4.4,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609091","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":"Lignin-Derived Ionic Hydrogels for Thermoelectric Energy Harvesting","authors":"Nicolás Menéndez,&nbsp;Muhammad Muddasar,&nbsp;Mohammad Ali Nasiri,&nbsp;Andrés Cantarero,&nbsp;Clara M. Gómez,&nbsp;Rafael Muñoz-Espí,&nbsp;Maurice N. Collins and Mario Culebras*,&nbsp;","doi":"10.1021/acsapm.4c0381610.1021/acsapm.4c03816","DOIUrl":"https://doi.org/10.1021/acsapm.4c03816https://doi.org/10.1021/acsapm.4c03816","url":null,"abstract":"<p >Thermoelectric materials are attracting attention for their ability to convert heat into electricity, traditionally assessed through a figure of merit (<i>ZT</i>) depending on the electrical conductivity, Seebeck coefficient, and thermal conductivity. Developing efficient ionic thermoelectric materials presents challenges as they cannot integrate directly into standard generators. However, they can utilize the ionic thermoelectric effect to charge supercapacitors. This study investigates lignin, an abundant plant-based waste, as a basis for ionic thermoelectric systems, combining sustainability and thermoelectric efficiently. Lignin-based hydrogels with varying compositions were examined for their thermoelectric properties, revealing gigantic ionic Seebeck coefficients of up to 30.4 mV K^–1 and good conductivity, reaching 5.87 S m^–1. The optimal hydrogel composition displayed a high-power factor of 4187 μW m^–1 K^–2, and an impressive ionic i<i>ZT</i> value of 3.5, showcasing the potential of lignin-based hydrogels for ionic thermoelectric systems. This research suggests a promising avenue for addressing environmental and economic challenges in energy production.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"3093–3102 3093–3102"},"PeriodicalIF":4.4,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609126","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":"Quantifying the Three-Dimensional Molecular Arrangement in Polymer–Polymer Blends: Impact of Molecular Weight","authors":"Fei Dou,&nbsp;Yongli Ren,&nbsp;Liyang Yu,&nbsp;Bo Xu,&nbsp;Matthew Dyson,&nbsp;Jaime Martin,&nbsp;Zhuping Fei,&nbsp;James H. Bannock,&nbsp;Yiwei Zhang,&nbsp;Paul N. Stavrinou,&nbsp;Martin Heeney,&nbsp;John de Mello and Xinping Zhang*,&nbsp;","doi":"10.1021/acsapm.4c0358010.1021/acsapm.4c03580","DOIUrl":"https://doi.org/10.1021/acsapm.4c03580https://doi.org/10.1021/acsapm.4c03580","url":null,"abstract":"<p >Solution-processed plastic semiconductors have garnered significant attention recently due to their ease fabrication and diverse optoelectronic functionalities, positioning them as promising contenders for the next generation of semiconductors. However, comprehending the molecular ordering in polymer semiconductor blends during solution processing remains a captivating challenge. In this study, we chose poly(3-hexylthiophene-2,5-diyl) (P3HT) and poly(3-hexylselenophene-2,5-diyl) (P3HS) blends as the model system and examined the molecular ordering of blends with low molecular weights (below the entanglement) and high molecular weights (above the entanglement). By employing a combination of structural analysis, spectroscopic techniques, and theoretical modeling, valuable insight regarding the arrangement of molecules in three dimensions within P3HT/P3HS blends of varying molecular weights have been acquired. Through these analyses, we establish a comprehensive relationship between molecular weight, molecular ordering, and exciton coherence in polymer–polymer blends.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"2986–2996 2986–2996"},"PeriodicalIF":4.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609067","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":"Effect of Polymer Chain Length, pH, and Temperature on the Preparation of Polymer-Gold Nanoconjugates and Their Application in Catalysis","authors":"Sharmita Bera,&nbsp;Jitu Padhee,&nbsp;Juthi Pal and Dibakar Dhara*,&nbsp;","doi":"10.1021/acsapm.5c0012610.1021/acsapm.5c00126","DOIUrl":"https://doi.org/10.1021/acsapm.5c00126https://doi.org/10.1021/acsapm.5c00126","url":null,"abstract":"<p >Gold nanoparticles (GNPs) have attracted enormous attention as efficient catalysts because of their high surface area and specific crystal facets. However, high-surface-energy-induced aggregation among nanoparticles results in a drop in catalytic efficiency, which is often prevented by conjugating the nanoparticles with polymers. In this direction, a series of pH- and thermoresponsive polymers, poly(<i>N</i>-vinylpyrrolidone)-<i>block</i>-poly(dimethylaminoethyl methacrylate) (PNVP-<i>b</i>-PDMAEMA), were synthesized and employed for preparing and/or stabilizing GNPs. The size and shape of the synthesized GNPs were influenced by the choice of the stabilizing polymer and the solution pH. Notably, GNPs could be synthesized without a reducing agent at higher pH values, whereas that was not possible at lower pH values. The catalytic efficiency of these polymer-gold nanoconjugates was assessed for the reduction of 4-nitrophenol, where a significant enhancement in catalytic efficiency was observed due to ionic interactions between the reactants and catalysts at low pH values. However, the amphiphilic behavior of the polymers under varying environmental conditions resulted in a non-Arrhenius-type catalytic response in response to temperature variation. At higher pH values, the polymers became hydrophobic, facilitating the recovery of the catalyst from the reaction medium. Overall, the dual-responsiveness of the polymer-gold nanoconjugates offered versatility in catalytic applications as well as advantages for catalyst recyclability.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"3368–3377 3368–3377"},"PeriodicalIF":4.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608814","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":"Interfacial Structure and Reactions in Li6.7Al0.3La3Zr2O12-Doped Polycarbonate-Based Composite Polymer Electrolytes","authors":"Kenza Elbouazzaoui,&nbsp;Edvin K.W. Andersson,&nbsp;Yi-Chen Weng,&nbsp;Daniel Friesen,&nbsp;Kristina Edström,&nbsp;Erika Giangrisostomi,&nbsp;Ruslan Ovsyannikov,&nbsp;Daniel Brandell*,&nbsp;Jonas Mindemark and Maria Hahlin,&nbsp;","doi":"10.1021/acsapm.4c0386510.1021/acsapm.4c03865","DOIUrl":"https://doi.org/10.1021/acsapm.4c03865https://doi.org/10.1021/acsapm.4c03865","url":null,"abstract":"<p >Solid composite polymer electrolytes (CPEs) are complex mixtures of ceramics, polymers, and lithium salts, where the interfaces between the different phases play an important role for stability, conductivity, and compatibility with electrode materials. In this study, two interfacial phenomena of CPEs consisting of lithium lanthanum zirconium oxide (LLZO) ceramic fillers in poly(trimethylene carbonate) (PTMC) with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt are studied. First, the LLZO-polymer electrolyte interfaces are investigated. Second, the stability of this CPE material vs a Li-metal electrode is explored, by employing soft X-ray photoelectron spectroscopy (PES) in combination with in situ deposition of Li. Three different LLZO loadings in PTMC are investigated: 30, 50, and 70 wt %. The concentration of LiTFSI follows that of the particle concentration at the surface of the samples, where the CPE with 50 wt % bulk content of LLZO exhibits the highest surface concentrations of both salt and ceramic. This shows an affinity for the salt at the LLZO surface. Furthermore, the stability of the CPEs against Li is studied after in situ Li deposition and shows that PTMC can decompose, potentially forming polypropylene at the CPE|Li interface, with the CPE at 50 wt % of LLZO showing the most pronounced PTMC and TFSI breakdown. This is in agreement with the observed properties for the polymer-ceramic interfaces and highlights the decisive role of LiTFSI accumulation on the surface of the ceramic particles, both for ionic transport and chemical stability.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"3112–3121 3112–3121"},"PeriodicalIF":4.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c03865","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608904","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}

{"title":"Poly(ethylene-alt-maleic acid)-Based Binders for Silicon Anodes","authors":"Karol Jagodziński,&nbsp;Nicola Boaretto*,&nbsp;Nerea Casado and María Martínez-Ibañez,&nbsp;","doi":"10.1021/acsapm.4c0362510.1021/acsapm.4c03625","DOIUrl":"https://doi.org/10.1021/acsapm.4c03625https://doi.org/10.1021/acsapm.4c03625","url":null,"abstract":"<p >The development of high-energy-density lithium-ion batteries (LIBs) is essential for the advancement of electric vehicles and portable electronics. Silicon-rich anodes, with their exceptional theoretical capacity, hold promise for revolutionizing energy storage. However, challenges such as volumetric expansion during cycling hinder their practical use. Ionically conductive binders have been shown to enhance the mechanical stability and cyclability of silicon-based electrodes. Herein, water-soluble binders for silicon anodes were prepared by functionalization of poly(ethylene-<i>alt</i>-maleic anhydride) (PEaMAn) with ion-conducting polyether side chains and hydrolyzation of maleic anhydride at different ratios. Six binders were synthesized and characterized, and their electrochemical performance was evaluated in half-cells. Our results indicate that polyether-functionalized binders significantly reduced the slurry viscosity and thus enhanced electrodes′ processability, compared to that of the fully hydrolyzed poly(ethylene-<i>alt</i>-maleic acid) (PEaMAc) binder. However, they also led to poor adhesion to the current collector, faster impedance increase, and capacity decay during cycling as compared to PEaMAc. On the contrary, electrodes with the fully hydrolyzed PEaMAc binder showed strong adhesion to the current collector and superior electrochemical performance, with an initial Coulombic efficiency of 71.3% and delithiation capacities of 2230 mAh g^–1 at C/10 and 1190 mAh g^–1 at 1C. Moreover, PEaMAc demonstrated significantly better rate performance compared to that of the conventional LiPAA binder, highlighting its potential as a highly effective binder for silicon anodes in lithium-ion batteries.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"2973–2985 2973–2985"},"PeriodicalIF":4.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c03625","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608816","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}

{"title":"Poly(ethylene-<i>alt</i>-maleic acid)-Based Binders for Silicon Anodes.","authors":"Karol Jagodziński, Nicola Boaretto, Nerea Casado, María Martínez-Ibañez","doi":"10.1021/acsapm.4c03625","DOIUrl":"10.1021/acsapm.4c03625","url":null,"abstract":"<p><p>The development of high-energy-density lithium-ion batteries (LIBs) is essential for the advancement of electric vehicles and portable electronics. Silicon-rich anodes, with their exceptional theoretical capacity, hold promise for revolutionizing energy storage. However, challenges such as volumetric expansion during cycling hinder their practical use. Ionically conductive binders have been shown to enhance the mechanical stability and cyclability of silicon-based electrodes. Herein, water-soluble binders for silicon anodes were prepared by functionalization of poly(ethylene-<i>alt</i>-maleic anhydride) (PEaMAn) with ion-conducting polyether side chains and hydrolyzation of maleic anhydride at different ratios. Six binders were synthesized and characterized, and their electrochemical performance was evaluated in half-cells. Our results indicate that polyether-functionalized binders significantly reduced the slurry viscosity and thus enhanced electrodes' processability, compared to that of the fully hydrolyzed poly(ethylene-<i>alt</i>-maleic acid) (PEaMAc) binder. However, they also led to poor adhesion to the current collector, faster impedance increase, and capacity decay during cycling as compared to PEaMAc. On the contrary, electrodes with the fully hydrolyzed PEaMAc binder showed strong adhesion to the current collector and superior electrochemical performance, with an initial Coulombic efficiency of 71.3% and delithiation capacities of 2230 mAh g^-1 at C/10 and 1190 mAh g^-1 at 1C. Moreover, PEaMAc demonstrated significantly better rate performance compared to that of the conventional LiPAA binder, highlighting its potential as a highly effective binder for silicon anodes in lithium-ion batteries.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 5","pages":"2973-2985"},"PeriodicalIF":4.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11915192/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143661644","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}