Michael J. Maher, Deborah K. Schneiderman, Adam. O. Moughton
{"title":"Synthesis of Imidazole-Terminated Polytetrahydrofuran and Imidazolium-Containing Ionenes","authors":"Michael J. Maher, Deborah K. Schneiderman, Adam. O. Moughton","doi":"10.1002/pol.20251017","DOIUrl":"https://doi.org/10.1002/pol.20251017","url":null,"abstract":"<div>\u0000 \u0000 <p>This work studies the impact of quenching the living polymerization of polytetrahydrofuran (PTHF) with imidazole and imidazole derivatives. Both nitrogen atoms of imidazole rapidly react to form imidazolium-functionalized-PTHF. Imidazolium formation could not be fully suppressed even with a large excess of imidazole quenching agent. To achieve imidazole terminated polymers, quenching with 1,1′-carbonyldiimidazole followed by hydrolysis proved to be an effective and efficient route. Imidazole terminated PTHF was then demonstrated to have utility in coordinating with copper and zinc metal ions to form supramolecular polymers of higher effective molecular weight.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1313-1322"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568021","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":"Polyhedral Oligomeric Silsesquioxane-Capped Poly(n-Butyl Acrylate) Copolymers With Supramolecular Quadruple Hydrogen Bonds","authors":"Lei Li, Pengfei Chang, Yawei Zhang, Jianlu Teng, Zixian Li, Xibin Shen, Guohua Hang, Sixun Zheng","doi":"10.1002/pol.20250938","DOIUrl":"https://doi.org/10.1002/pol.20250938","url":null,"abstract":"<div>\u0000 \u0000 <p>In this contribution, we reported the synthesis of polyhedral oligomeric silsesquioxane (POSS)-capped poly(<i>n</i>-butyl acrylate [BA]) copolymer telechelics featuring supramolecular quadruple hydrogen bonds through reversible addition-fragmentation chain transfer (RAFT) copolymerization of BA with 2-ureido-4(1H)-pyrimidinone acrylate (UPyA). In this work, we investigated the impact of both POSS termini and supramolecular hydrogen bonding interactions on the macromolecular dynamics by means of rheological analysis. Notably, the organic–inorganic hybrids displayed self-assembly behavior; the terminal POSS cages were aggregated into spherical microdomains with a size of 10–30 nm in diameter. The combination of POSS termini with supramolecular quadruple hydrogen bonds led to physical crosslinking, which bestowed robust mechanical strength on the organic–inorganic telechelics. Furthermore, the crosslinking imparted shape memory behavior to the organic–inorganic telechelics, whereas the dynamic exchange of supramolecular quadruple hydrogen bonds endowed the hybrids with excellent self-healing properties.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1378-1395"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570282","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}
Yogesh Kadam, Manohar V. Badiger, Pattuparambil R. Rajamohanan, Prakash P. Wadgaonkar, Guylaine Ducouret, Theo Merland, Dominique Hourdet
{"title":"Viscoelastic Behaviors of Hyaluronic Derivatives as a Function of pH, Salt, and Temperature","authors":"Yogesh Kadam, Manohar V. Badiger, Pattuparambil R. Rajamohanan, Prakash P. Wadgaonkar, Guylaine Ducouret, Theo Merland, Dominique Hourdet","doi":"10.1002/pola.70078","DOIUrl":"https://doi.org/10.1002/pola.70078","url":null,"abstract":"<p>Hyaluronic acid and its derivatives are essential polysaccharides widely used in the bio-medical field for their applications in tissue engineering and controlled drug delivery. By revisiting the wide variety of rheological behavior of aqueous hyaluronan solutions as a function of pH, we develop in this work a comparative study between solutions of native hyaluronan (HA) and its derivative (HA-PEPO) obtained by grafting onto thermoresponsive side-chains of poly(ethylene oxide-co-propylene oxide) characterized by a phase transition around body temperature. Based on a large dataset obtained at a fixed polymer concentration, by changing either the chemical composition of the chain and/or the environmental conditions (pH, temperature, added salt), we show that the viscoelastic properties of hyaluronan solutions can be controlled over more than three decades of amplitude with the possibility to get either liquid or gel states, regardless of temperature, as well as sol/gel transitions induced by cooling or heating by the interplay between hydrogen bonds, hydrophobic interactions, and cation binding induced by potassium salts.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1505-1517"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.70078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564882","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":"The Micro-Nano Hybrid Filler Al2O3@CuNPs Is Used to Improve the Thermal Conductivity of Epoxy Resin Composites","authors":"Zijian Lu, Wei Wu, Dietmar Drummer, Uta Rösel, Florian Tomiak, Yi Wang, Chao Liu, Shuo Li, Xintong Zhao","doi":"10.1002/pol.20251194","DOIUrl":"https://doi.org/10.1002/pol.20251194","url":null,"abstract":"<p>In this study, a micro/nano hybrid filler comprised of Al<sub>2</sub>O<sub>3</sub>@CuNPs is synthesized through a chemical reduction method. The incorporation of Cu nanoparticles serves as a bridge, addressing the contact issues within the filler and substantially enhancing its ability to establish a thermal conductivity network. The filler loading was kept at a constant level up to 70 wt%; however, the copper amount was varied between 0 and 10 wt%. The resulting thermal conductivity of the Al<sub>2</sub>O<sub>3</sub>@CuNPs/EP composite exhibits a gradual increase with the filler content, reaching 1.06 W/mK at a total filler content of 70 wt%. This represents a remarkable growth rate of 457.9% compared to pure EP. This material holds promising potential for applications in thermal conductivity materials.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1518-1527"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20251194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564692","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}
Feng Ding, Di Huang, Yan Zhuang, Yu-Han Zhou, Fu-Jia Yin, Long Zhao, Cheng-Zhu Wu
{"title":"Alendronate-Functionalized Zwitterionic Polymer Nanogels for Potential Osteoporosis Treatment","authors":"Feng Ding, Di Huang, Yan Zhuang, Yu-Han Zhou, Fu-Jia Yin, Long Zhao, Cheng-Zhu Wu","doi":"10.1002/pol.20251112","DOIUrl":"https://doi.org/10.1002/pol.20251112","url":null,"abstract":"<div>\u0000 \u0000 <p>The complex bone tissue microenvironment poses a significant challenge to achieving therapeutic drug concentrations for osteoporosis therapy. Hence, a smart nanogel (DPA@SBMA<sub>5</sub>-ALN) was synthesized via emulsion polymerization using a pH-responsive hydrophobic core of 2-(diisopropylamino)ethyl methacrylate (DPA) and a hydrophilic shell of sulfobetaine methacrylate (SBMA), subsequently conjugated with alendronic acid (ALN) for bone-specific targeting. In vitro cellular uptake assays demonstrated that ALN-modified nanogels had a higher propensity for uptake by MC3T3-E1 cells, revealing DPA@SBMA<sub>5</sub>-ALN nanogels could selectively target osteoblast-like cells. A bone-targeting test exhibited enhanced binding affinity to the femurs and tibias compared with nanogels without ALN modification. Moreover, histopathological analysis of major organs from treated mice indicated no significant toxicity, confirming preliminary biosafety. These findings indicate that DPA@SBMA<sub>5</sub>-ALN nanogels are a promising bone-targeting carrier for delivery of antiresorptive drugs and have great potential for the treatment of other bone-related diseases.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1476-1485"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564593","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":"Effects of Itaconic Anhydride Content on the Properties of Modified Polyurethane","authors":"Shutong Yang, Xiurui Lang, Huibin Zhou, Yingxia Zong","doi":"10.1002/pol.20251210","DOIUrl":"https://doi.org/10.1002/pol.20251210","url":null,"abstract":"<div>\u0000 \u0000 <p>The enhancement of polyurethane properties for demanding applications through modification techniques remains a key research focus. In this study, the modified polyurethane (IPU) is synthesized using polycaprolactone diol (PCL), 4,4′-diphenylmethane diisocyanate (MDI), and 1,4-butanediol (BDO) as raw materials, with itaconic anhydride (IA) incorporated to react with the terminal hydroxyl polyurethane prepolymer (Pre-PU). The effects of different IA contents on the structure, crystallization behavior, and properties of the IPU are systematically investigated. The results show that the IPU with 12 mol% IA exhibits the highest degree of hydrogen bonding, a relatively lower soft segment crystallinity, and a more developed microphase-separated structure. This formulation demonstrates optimal overall performance, including enhanced tensile strength and elongation at break (13.9 MPa and 672.2%, respectively), good damping properties, and the least reduction in hydrophobicity.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1465-1475"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563713","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 Hyperbranched Macromolecule PTECK and Its Flame Retardant Effect on Polypropylene","authors":"Zhaojian Ding, Feijing Xu, Jiaxi Chen, Chengsheng He, Chunhui Shen, Shanjun Gao","doi":"10.1002/pol.20251115","DOIUrl":"https://doi.org/10.1002/pol.20251115","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, a hyperbranched macromolecular flame retardant (PTECK) containing nitrogen, phosphorus, and silicon was synthesized using cyanuric chloride (TCT), γ-aminopropyltriethoxysilane (KH550), triethyl phosphate (TEP), and ethylenediamine (EDA) as starting materials. The chemical structure of PTECK was systematically characterized by Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and elemental analysis (EA). Subsequently, PTECK was combined with ammonium polyphosphate (APP) to prepare a flame-retardant polypropylene (PP) composite via melt blending through hot pressing. Flame retardancy evaluations demonstrated that the incorporation of 6.67 wt% PTECK and 13.33 wt% APP into PP resulted in a limiting oxygen index (LOI) value of 30.3% and achieved a UL-94V-0 classification. Compared to neat PP, the peak heat release rate (PHRR) and total heat release (THR) of the PP/PTECK/APP composite were reduced by 78.2% and 68.3%, respectively, while the residual char yield reached 42.5%. Furthermore, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Raman spectroscopy (RS), X-ray photoelectron spectroscopy (XPS), and infrared spectroscopy were employed to analyze the gaseous products and char residue, thereby elucidating the underlying flame retardancy mechanism.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1362-1377"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570052","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":"Recent Advances in Epoxy Resin Foaming Methods and Improvement of Epoxy Foam Thermal Insulation Performance","authors":"Zhichun Xu, Donghai Sheng, Yuan Li","doi":"10.1002/pol.20251016","DOIUrl":"https://doi.org/10.1002/pol.20251016","url":null,"abstract":"<p>The thermal conductivity of epoxy resins is only 0.2–0.88 W m<sup>−1</sup> K<sup>−1</sup>, which can be used as thermal insulating materials to reduce energy loss. Adding thermal insulating fillers to epoxy resins makes it possible to synthesize composite materials with even better thermal insulating properties. Since the thermal conductivity of the gasses in the foam is nearly an order of magnitude lower than that of ordinary materials, epoxy foam is more suitable for use as thermal insulating materials. The factors affecting the thermal insulation performance of foams are mainly the cell density and diameter, and the blowing agents can change the size of the cell density and diameter, so the selection of suitable blowing agents is particularly important for improving the thermal insulation performance of epoxy foams. This paper summarizes the foaming methods of epoxy foam and the latest progress in improving the thermal insulation performance of epoxy foam and puts forward the outlook. Among them, there are two methods for foaming epoxy resin, namely traditional foaming and potential foaming. Furthermore, there are two ways to improve the thermal insulation performance of epoxy foam, namely increasing the amount of blowing agents and adding thermal insulating fillers within a certain range, while not affecting the performance of the foam itself.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1412-1430"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20251016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562109","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":"Hydrogen-Bonded Thermotropic Liquid Crystalline Polyarylate/Amides: Enhanced Thermal Stability, Mechanical Strength, and Long-Term Performance","authors":"Ke Ma, Qiyuan Qian, Ying Wang, Yuhan Chen, Luobin Shu, Chao Xiong, Shuohan Huang, Yuwei Chen, Peng Wei, Yanping Wang, Yong He, Yumin Xia","doi":"10.1002/pola.70074","DOIUrl":"https://doi.org/10.1002/pola.70074","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, a series of liquid crystalline polyarylate/amides were synthesized via a two-step method, involving 0.0–70.0 mol% of 4-hydroxybenzoic acid (HBA), 30.0 mol% of 6-hydroxy-2-naphthoic acid (HNA), and 0.0–70.0 mol% of p-aminobenzoic acid (PABA). Thermotropic liquid crystalline polyarylate/amides with different proportions were prepared through stepwise polycondensation reactions. Data from infrared spectroscopy and polarizing optical microscopy revealed the presence of intermolecular hydrogen bonds and associated fibrous structures in liquid crystalline polyarylate/amides containing aromatic amide units. As a result, with the increase in aromatic amide units, the glass transition temperature (<i>T</i>\u0000 <sub>\u0000 <i>g</i>\u0000 </sub>), melting temperature (<i>T</i>\u0000 <sub>\u0000 <i>m</i>\u0000 </sub>), mechanical properties, melt viscosity, and creep resistance of the liquid crystalline polyarylate/amides were all improved, while their liquid crystalline characteristics were retained. This study provides a novel strategy for the structural design and performance optimization of new engineering plastics.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1486-1504"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564594","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":"Surface Modification of Polyetherketoneketone for High Resin Adhesion Strength","authors":"Chengsheng Liu, Yanping Zhang, Menghan Li, Ting Wang, Xiong Ma, Wenrui Tang, Yuexin Hu, Xiangyan Han, Shanshan Zhao","doi":"10.1002/pol.20251056","DOIUrl":"https://doi.org/10.1002/pol.20251056","url":null,"abstract":"<div>\u0000 \u0000 <p>Polyetherketoneketone (PEKK) has garnered significant interest as a dental implant material. However, its low surface hydrophilicity and free energy result in weak shear bond strength (SBS) to dental resins. Therefore, this study aims to enhance the SBS between PEKK and dental resins by increasing its surface free energy through chemical surface modification techniques. The PEKK specimens were sulfonated using concentrated sulfuric acid to generate a three-dimensional porous surface structure. Subsequently, sequential modifications were performed: ethylenediamine amination, sodium borohydride reduction, and UV-induced acrylic acid grafting. Dental resin was bonded to the modified surfaces, and the specimens underwent 24 h aging in distilled water at 37°C before shear bond strength (SBS) testing. The results indicated that the surface modification significantly enhanced the shear bond strength between PEKK and dental resin, along with a marked improvement in surface hydrophilicity.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1323-1334"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570050","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}