Tyler M. Shin, Nathan J. Weeks, Stephen M. Budy, Scott T. Iacono
{"title":"Cover Image, Volume 63, Issue 17","authors":"Tyler M. Shin, Nathan J. Weeks, Stephen M. Budy, Scott T. Iacono","doi":"10.1002/pola.31760","DOIUrl":"https://doi.org/10.1002/pola.31760","url":null,"abstract":"<p>The cover image is based on the article <i>Perfluoropolyether Segmented Polybutadiene Urethanes With Improved Dispersion of Silica Particles: A Surrogate Methodology for Additive Manufacturing of Composite Binders</i> by Scott Iacono et al., https://doi.org/10.1002/pol.20241160.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 17","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.31760","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to “Load-Induced Shear Band Formation in Microscale Epoxy Materials”","authors":"","doi":"10.1002/pola.31699","DOIUrl":"https://doi.org/10.1002/pola.31699","url":null,"abstract":"<p>\u0000 \u0000 <span>Mittelhaus, J.</span>, <span>Konrad, J.</span>, <span>Jacobs, J.</span>, <span>Röttger, P.</span>, <span>Meißner, R.</span> and <span>Fiedler, B.</span> (<span>2025</span>), <span>Load-Induced Shear Band Formation in Microscale Epoxy Materials</span>. <i>J Polym Sci</i>, <span>63</span>: <span>2174</span>–<span>2186</span>. https://doi.org/10.1002/pol.20241162.\u0000 </p><p>Correction added on 18 Aug 2025, after first online publication: The originally published version of this manuscript contained a production error, which resulted in the figures appearing out of sequence. The file has been updated to restore the figures to their proper reading order.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 17","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.31699","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Erik G. Rognerud, Ryan W. Clarke, J. Bennett Addison, Brandon C. Knott, Natalie J. Schultz, Silvia Pezzola, Alexandra Stovall, Laura K. Dunham, Lisa Stanley, Andrea L. Baer, Nicholas A. Rorrer
{"title":"The Triple Catalytic Action of Tertiary Nitrogen Catalysts in Recyclable Epoxy-Anhydride Thermosets","authors":"Erik G. Rognerud, Ryan W. Clarke, J. Bennett Addison, Brandon C. Knott, Natalie J. Schultz, Silvia Pezzola, Alexandra Stovall, Laura K. Dunham, Lisa Stanley, Andrea L. Baer, Nicholas A. Rorrer","doi":"10.1002/pol.20250489","DOIUrl":"https://doi.org/10.1002/pol.20250489","url":null,"abstract":"<div>\u0000 \u0000 <p>The thermosetting polymer matrix in fiber reinforced composites is an important component for energy related applications, such as the lightweighting of vehicles or their use in wind and waterpower turbine blades, due to their ability to provide superior adhesion, stiffness, and applicability to a wide range of manufacturing processes. Despite these benefits, today's thermosets are widely considered to be unrecyclable; thus, there is a large interest in redesigning these materials to be inherently recyclable so that energy intensive production of fibers and monomers can be circumvented, bolstering composite manufacture supply chains. Polyester covalent adaptable networks (PECANs) are one such promising alternative to the incumbent, nonrecyclable epoxy-amine thermosets. PECANs can be formed from the ring-opening co-polymerization (ROCOP) of epoxy-anhydride monomer mixtures and subsequent curing at mild temperatures to exhibit similar performance to conventional epoxies while also possessing unique dynamic chemistries along the ester-hydroxyl backbone that are capable of transesterification and thus reprocessability. While significant advancements have been made in formulating these materials for improved mechanical properties or optimizing solvolysis and reprocessing strategies, less attention has been placed on the impact of the residing amine catalyst used to generate the polyester network. In this work, we evaluated the triple-catalytic efficacy of 12 tertiary amines that act as a curing (bulk ROCOP), a transesterification (internal bond exchange), and a deconstruction (methanolysis) catalyst for PECAN thermosets. Specifically, we first distinguish between chain-growth and step-growth polymerization mechanisms for epoxy-amine and epoxy-anhydride mechanisms. We also utilized density functional theory (DFT) to estimate the basicity (pK<sub>b</sub>) of each catalyst. Of the tested catalysts, the ROCOP of the studied PECAN network can be completed between 95 and 247 min (at 80°C), with variable gelation phenomena. Additionally, the stress relaxation (transesterification metric) efficiency of the tested PECAN networks with alternative embedded catalysts ranged from 95% to 15% reduction in stress after 5 h at 200°C, and the depolymerization efficacy ranged from 2.5% to 9.8% deconstruction after 36 h at 130°C. Overall, the nitrogen-based moieties were demonstrated to influence polymerization kinetics, catalyze the dynamic transesterification exchange mechanism, and aid in the solvolysis of the thermosets at end-of-life.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 17","pages":"3601-3610"},"PeriodicalIF":3.6,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joana F. M. Sousa, Dina Murtinho, Artur J. M. Valente, Jorge M. C. Marques
{"title":"Cover Image, Volume 63, Issue 15","authors":"Joana F. M. Sousa, Dina Murtinho, Artur J. M. Valente, Jorge M. C. Marques","doi":"10.1002/pola.31726","DOIUrl":"https://doi.org/10.1002/pola.31726","url":null,"abstract":"<p>The cover image is based on the Article <i>On the Mechanism of Interactions Between Tetracycline and New Chitosan-Based Materials: Experimental Development Guided by Computational Methods</i> by Jorge Marques et al., https://doi.org/10.1002/pol.20250270\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 15","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.31726","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Saurabh Vijay Bagare, M. J. Lee, Alex Kuehnle, Jeffrey S. Moore, Jeffery W. Baur
{"title":"Initiator-Driven Tailoring of Reactivity and Inhibition in Frontally Polymerized Dicyclopentadiene-Co-Dihydrofuran Thermosets","authors":"Saurabh Vijay Bagare, M. J. Lee, Alex Kuehnle, Jeffrey S. Moore, Jeffery W. Baur","doi":"10.1002/pol.20250492","DOIUrl":"https://doi.org/10.1002/pol.20250492","url":null,"abstract":"<p>Incorporating 2,3-dihydrofuran (DHF) into dicyclopentadiene (DCPD) enables frontally polymerizable, deconstructible thermosets via acid hydrolysis. At 5–20 mol% DHF and low initiator concentration (~100 ppm), DHF inhibits front propagation, lowers the glass transition temperature (<span></span><math>\u0000 \u0000 <semantics>\u0000 \u0000 <mrow>\u0000 \u0000 <msub>\u0000 \u0000 <mi>T</mi>\u0000 \u0000 <mi>g</mi>\u0000 </msub>\u0000 </mrow>\u0000 </semantics>\u0000 </math>) by up to 20°C, and quenches the front, especially at 20% DHF. This paper demonstrates that increasing the initiator concentration to 250–1000 ppm overcomes inhibition, enhances front speeds by ~50%, and suppresses quenching at the expense of pot-life. Above 5 mol% DHF, an emergence of a second exotherm is observed, attributed to increased rate dependence on the inhibition of the initiator by DHF. Void formation from volatile DHF is suppressed by applying 110 kPa nitrogen, though at the cost of reduced front speed. Dynamic mechanical analysis shows that higher initiator concentration produced more highly cross-linked polymers, with a ~20% increase in storage modulus at 25°C and a 20°C increase in <span></span><math>\u0000 \u0000 <semantics>\u0000 \u0000 <mrow>\u0000 \u0000 <msub>\u0000 \u0000 <mi>T</mi>\u0000 \u0000 <mi>g</mi>\u0000 </msub>\u0000 </mrow>\u0000 </semantics>\u0000 </math>.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 19","pages":"4061-4074"},"PeriodicalIF":3.6,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250492","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electromagnetic Radiation Protection of MXenes/Polymers","authors":"Wei Liang, Yueqin Shi, Rui Guo, Jiawei Shao, Zhengjun Li, Minxuan Xu, Qi Zhang, Zhengjie Feng, Hari Bala","doi":"10.1002/pol.20250514","DOIUrl":"https://doi.org/10.1002/pol.20250514","url":null,"abstract":"<p>Ultrathin, lightweight, and flexible MXene films have revealed excellent performance in the electromagnetic radiation (ER) protection field due to their high conductivity and unique layered structures. Importantly, the ER protection properties are heavily reliant upon the abundant terminations on the MXene surfaces. Here, we systematically review the advancements in polymer/MXene-based materials. Particularly, our focus lies in elucidating the intricate mechanisms governing the polymer assembly onto MXene surfaces and their subsequent influence on the ER protection efficacy. Additionally, we critically analyze the challenges and opportunities afforded by the interfacial modification strategies of polymer on MXene, aiming to unlock the full potential of MXene-based materials for ER protection advancements.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 19","pages":"4087-4097"},"PeriodicalIF":3.6,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250514","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of Environmental Surroundings on the Mechanical Properties of Ultrathin Polymer Membranes","authors":"R. Kōnane Bay","doi":"10.1002/pol.20250562","DOIUrl":"https://doi.org/10.1002/pol.20250562","url":null,"abstract":"<div>\u0000 \u0000 <p>Polymer thin films are critical for many applications, including water filtration and gas separation membranes. In these applications, polymer films can experience elevated temperatures, elevated pressures/pressure gradients, and varying liquid/gas environments. However, the majority of work on the mechanical properties of ultrathin polymer films has focused on the impact of thickness at ambient conditions. In contrast, less work has focused on the effect of non-ambient environmental conditions. This perspective reviews the bulk and thin film literature on how environmental conditions can influence the solid mechanics of glassy polymers, highlighting the unresolved questions that remain. We focus on two dense polymer thin film membrane applications: water desalination and CO<sub>2</sub> capture. These applications will benefit from investigating the influence of environmental operating conditions on their mechanical properties. To accomplish these studies, tensile testers for ultrathin films will need to be modified to measure the impact of temperature (heating stage), liquid interactions (liquid support layer), and gas interactions (instrument enclosure). Measuring the influence of hydraulic pressure on the thin film mechanical properties will require a creative approach in the future. Modifying these instruments will yield future studies on the impact of the surrounding environment on the solid mechanics of ultrathin polymer films.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 17","pages":"3517-3529"},"PeriodicalIF":3.6,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis of Multilayer Core-Shell Acrylic Impact Modifiers and Their Impact on the Performance Optimization of Poly (Methyl Methacrylate)","authors":"Jiawei Liu, Ying Qiu, Xiaohan Bai, Jiangting Huang, Yingdan Wang, Guangxu Gao, Ning Wang, Jialu Gao, Siying Leng, Yongsheng Hao, Yuanxia Wang, Lixin Song","doi":"10.1002/pol.20250418","DOIUrl":"https://doi.org/10.1002/pol.20250418","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the toughening effects of three types of acrylic impact modifier (AIM) structures—bilayer, trilayer, and functionalized—on polymethyl methacrylate (PMMA). The melt blending technology was employed to examine how AIM structural variations influence the mechanical and optical properties of PMMA. First, bilayer AIMs with varying particle sizes were synthesized. The results showed that an optimal impact resistance was achieved when the particle size of P(BA-co-St) was 269 nm, with the optical properties remaining above 88%. Next, trilayer AIMs were prepared to assess the influence of different core materials on toughening performance. These trilayer AIMs enhanced the crack propagation resistance of PMMA but led to a slight decrease in optical properties. Finally, functionalized AIMs were developed by introducing acrylic acid (AA) functional groups into the shell layer, improving the interfacial adhesion between AIM and PMMA, which significantly enhanced the mechanical performance. The findings demonstrate that optimization of particle size, layer structure, and functionalization effectively improves the impact resistance and overall performance of PMMA. With excellent optical properties maintained, the impact strength is increased by four times, providing new solutions for its application in the construction, automotive, and electronics industries.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 19","pages":"4075-4086"},"PeriodicalIF":3.6,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to “Effect of Organic Bases on Fluorescence Quenching Behaviors and Acid–Base Responsivity of Coumarin-Based π-Conjugated Polymers Compared With 3,7-Dibromo-4-Methylcoumarin and 3,7-Bis(Phenylethynyl)-4-Methylcoumarin”","authors":"","doi":"10.1002/pol.20250689","DOIUrl":"https://doi.org/10.1002/pol.20250689","url":null,"abstract":"<p>We apologize for this error.</p><p>This correction does not change the conclusions of this work.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 19","pages":"4098-4100"},"PeriodicalIF":3.6,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250689","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Molecular Modification of β-CD Host–Guest Complexes for Rodent-Proof Flame Retardants","authors":"Yakun Lan, Dan Li, Liyang Ding, Yingdong Wei, Shuai Yang, Guxia Wang, Shengwei Guo","doi":"10.1002/pol.20250402","DOIUrl":"https://doi.org/10.1002/pol.20250402","url":null,"abstract":"<div>\u0000 \u0000 <p>As urbanization progresses, electrical cables are increasingly installed underground, making them vulnerable to rodent damage, which can lead to short circuits, power outages, signal interruptions, and fires. To address the irritation caused by traditional chemical rodent repellents, this study introduces a novel, environmentally friendly solution. By encapsulating Dihydro capsaicin (DHCP) with β-cyclodextrin (β-CD) and modifying melamine cyanurate (MCA), we developed an efficient rodent repellent, β-CD/DHCP@MCA, which significantly reduces DHCP's irritant effects during processing. This compound was combined with ammonium polyphosphate (APP) and dipentaerythritol (DPER) to create an intumescent flame-retardant rodent repellent, applied to polypropylene (PP) materials. Experimental results demonstrate that PP materials containing this composite additive exhibit excellent flame-retardant and rodent-repellent properties, with an increased oxygen index of 30.9%. Rodent tests indicate that the material provides a significant non-lethal deterrent effect on rats. This study offers an effective approach to mitigating DHCP's irritant effects and presents new insights for developing efficient flame-retardant rodent repellents in polymer materials.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 19","pages":"4048-4060"},"PeriodicalIF":3.6,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}