Polymer Bulletin最新文献

{"title":"Sustainable NIPU coatings based on carbonated linseed oil and cardanol: synthesis and thermo-mechanical performance","authors":"Emel Atılal,&nbsp;Nilhan Kayaman Apohan","doi":"10.1007/s00289-026-06715-9","DOIUrl":"10.1007/s00289-026-06715-9","url":null,"abstract":"<div><p>In this study, fully bio-based non-isocyanate polyurethanes (NIPUs) were synthesized from cyclic carbonated linseed oil (CCLSO) and cyclic carbonated Cardolite® NC514S (CCNC514S) using the renewable diamine Priamine™ 1071. Cyclic carbonates were produced via catalytic CO₂ insertion into bio-based epoxides using tetrabutylammonium bromide (TBAB), followed by solvent-free polyaddition to form crosslinked NIPU networks. The physicochemical, thermal, mechanical, and surface properties of the resulting hybrid systems were comprehensively characterized. Gel content values of 83–85% indicated well-developed three-dimensional networks with minimal dependence on the CCLSO/CCNC514S ratio. Thermogravimetric analysis revealed single-step degradation between 300 and 500 °C, with degradation onset and mid-point temperatures ranging from 270 to 455 °C, confirming high thermal stability. Low char yields (0.22–0.31%) were attributed to residual inorganic catalyst components. Differential scanning calorimetry showed an increase in glass transition temperature from −17.2 °C to −11.2 °C with increasing CCNC514S content, indicating enhanced chain rigidity. Mechanical testing demonstrated increased elastic modulus (0.26–0.39 MPa), yield strength (0.31–0.42 MPa), and toughness (24.6–29.3 J), accompanied by a moderate reduction in elongation at break. Surface analyses revealed hydrophilic contact angles (72–88°), high gloss (&gt; 100 GU), improved hardness, excellent adhesion, and superior corrosion resistance in salt-spray testing for CCNC514S-rich formulations.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132346","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":"Synergistic effect of MMT nanoclay on vinyl acetate-based copolymer for enhanced pour point temperature and rheological behavior in waxy crude oils","authors":"M. A. Sayed,&nbsp;Fathy Yassin,&nbsp;Hamza Baghi,&nbsp;A. A. Ragab","doi":"10.1007/s00289-026-06732-8","DOIUrl":"10.1007/s00289-026-06732-8","url":null,"abstract":"<div><p>Nanoparticles attract great interest from researchers due to their ability to improve the efficiency of pour point depressants (PPDs) in the chemical treatment of waxy crude oil. Despite recent advancements, a gap remains in understanding the synergistic mechanism between copolymers and nanoclay through mathematical modeling to ensure flow assurance. In this paper, nanoclay (Montmorillonite) was hybridized with vinyl acetate-octadecyl acrylate (VA/ODA) copolymer to develop six liquid nanocomposite pour point depressants (LNPPDs). The performance of these LNPPDs was assessed on Egyptian waxy crude oils and compared with neat LPPD-H. Results revealed that LNPPDs significantly enhanced the pour point reduction and rheological properties. For Oil-A, the pour point was reduced from 75 °F to 45 °F, and dynamic viscosity was reduced by 84% at 73 °F using LNPPD-5 (1.5% nanoclay). For Oil-B, yield value reduction reached 96.3% with LNPPD-3 (0.75% nanoclay). These results were further validated using the Herschel-Bulkley model, showing a significant reduction in the consistency index (K) and a shift toward Newtonian behavior. Additionally, long-term stability tests demonstrated that the developed LNPPDs retain their full efficiency after 55 days of aging. This integrated approach proves that hybridized nanoparticles offer a robust and stable solution for ensuring flow assurance in waxy crude oil pipelines.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132489","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":"Synergistic flame-retardant coating based on eugenol–DOPO modified polyols for enhanced thermal stability of polyester fabrics","authors":"Akash R. Parvate,&nbsp;Suyog Patil,&nbsp;Aarti P. More","doi":"10.1007/s00289-026-06723-9","DOIUrl":"10.1007/s00289-026-06723-9","url":null,"abstract":"<div><p>The development of halogen-free and sustainable flame-retardant waterborne polyurethane dispersions (FR_PUDs) is vital for advanced protective textile applications. In this work, a biobased reactive phosphorus flame retardant, Eugenol-DOPO, was synthesised via the grafting of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) onto eugenol and covalently incorporated into the polyurethane backbone to yield an intrinsically flame-retardant PUDs. The integration of eugenol-DOPO increased the aromatic content, crosslink density, and P-C and P-O bonding within the polymer network, resulting in the modified microphase morphology and enhanced thermal stability. Thermogravimetric analysis (TGA/DTG) showed a clear increase in decomposition onset temperature, reduced maximum mass-loss rate, and higher residual char yield in the FR-PUDs compared to the neat formulation. These improvements were attributed to the effective phosphorus-centered radical trapping mechanism of DOPO and the structural rigidity of the eugenol moiety, which jointly promoted condensed-phase char formation. The synergistic interaction between nitrogen and phosphorus further contributed to the generation of a coherent carbonaceous barrier that limited heat flux and volatile emission during combustion. Coated polyester fabrics exhibited enhanced flame retardancy, improved thermal resistance, and retained flexibility and adhesion without compromising coating uniformity. This study demonstrates the potential of Eugenol-DOPO as a renewable reactive phosphorus flame retardant and provides valuable insight into the structure–property relationships governing the performance of environmentally friendly, high-efficiency FR-PUD coatings for textile protection.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132292","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":"Non-derivatizing solvent systems for regenerated cellulose: from fundamentals to applications","authors":"Yunhui Bao,&nbsp;Qinyin Gu,&nbsp;Dietrich Buck,&nbsp;Shiyi Zeng,&nbsp;Jingyi Li,&nbsp;Chaochun Wang,&nbsp;Shanshan Wang,&nbsp;Huanhuan Ma,&nbsp;Jianbin Zhou,&nbsp;Ruirui Guo,&nbsp;Zimo Jiang,&nbsp;Yihan Chen,&nbsp;Liangcai Wang","doi":"10.1007/s00289-026-06698-7","DOIUrl":"10.1007/s00289-026-06698-7","url":null,"abstract":"<div><p>Cellulose is recognized as one of the most competitive natural polymers in the post-petroleum era due to its abundance, renewability, biodegradability, and inherent mechanical flexibility. However, its dense crystalline structure and strong hydrogen-bond network result in a melting point higher than its decomposition temperature, which makes traditional thermal processing routes entirely ineffective. Solvent-induced dissolution and regeneration has therefore become the primary technical pathway for shaping cellulose materials. Over the past two decades, non-derivatizing solvents have garnered increasing attention due to their advantages of zero derivatization, low toxicity, and closed-loop recycling. By finely regulating the hydrogen-bond competition and reconfiguration mechanism between solvent molecules and cellulose hydroxyl groups, these solvents can disrupt crystal packing in situ, thereby achieving molecular-level dispersion. This article systematically reviews the research progress in non-derivatizing solvent systems, including NaOH, <i>N</i>, <i>N</i>-Dimethylacetamide/lithium chloride, ionic liquids, inorganic salts, deep eutectic , and <i>N</i>-Methylmorpholine-<i>N</i>-oxide solvents. It focuses on the processing techniques, dissolution mechanisms, and strategies for constructing functional materials through cellulose dissolution and regeneration. Particular emphasis is placed on key processing parameters, including the effects of different solvent systems on cellulose solubility, degree of polymerization, and the properties of regenerated materials. These insights provide guidance for the precise design of high-value cellulose-based products such as membranes, fibers, microspheres, and 3D-printed structures. Finally, the review discusses current challenges and future opportunities for non-derivatizing solvent systems in closed-loop recycling, low-energy regeneration, and functional integration, offering a theoretical framework and technical roadmap for the development of next-generation green cellulose materials.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132133","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":"Magnetic polymer microspheres coated with polypyrrole–palladium nanocomposites as reusable catalysts for hydrodeoxygenation","authors":"Nattawut Rodtuk,&nbsp;Netnapha Kamlangmak,&nbsp;Kazusa Takeuchi,&nbsp;Sasiradee Jantasee,&nbsp;Warayuth Sajomsang,&nbsp;Preeyaporn Chaiyasat,&nbsp;Syuji Fujii,&nbsp;Amorn Chaiyasat","doi":"10.1007/s00289-026-06705-x","DOIUrl":"10.1007/s00289-026-06705-x","url":null,"abstract":"<div><p>The development of magnetically recoverable catalysts has attracted considerable interest for improving catalyst reusability and simplifying separation processes in heterogeneous catalysis. In this study, polypyrrole–palladium (PPy–Pd) nanocomposite-coated poly(methyl methacrylate-ethylene glycol dimethacrylate) microspheres containing Fe₃O₄ nanoparticles [P(MMA-EGDMA)-Fe₃O₄/PPy–Pd] were successfully prepared and evaluated as reusable catalysts for the hydrodeoxygenation (HDO) of guaiacol. Fe₃O₄ nanoparticles were first synthesized by co-precipitation in a binary aqueous-toluene system and subsequently encapsulated within polymer microspheres through suspension polymerization. The PPy–Pd nanocomposite layer was then deposited onto the microsphere surfaces <i>via</i> chemical oxidative seeded polymerization in aqueous media using PdCl₂ as the oxidant. The resulting composite microspheres were characterized by scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, elemental microanalysis, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The characterization results suggested the successful incorporation of Fe₃O₄ nanoparticles within the polymer microspheres and the formation of a PPy–Pd coating on the particle surfaces. The catalytic performance of the composite microspheres was investigated in the HDO of guaiacol under a hydrogen atmosphere. The catalyst retained over 85% of its initial catalytic activity after eight reaction cycles and could be readily recovered using an external magnetic field. In addition, the PPy–Pd loading on the microspheres could be adjusted by varying the pyrrole concentration during synthesis. These results demonstrate a simple strategy for preparing magnetically recoverable polymer-supported PPy–Pd composite catalysts with potential for reusable catalytic applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132211","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":"Superhydrophobic polymeric foam: A review","authors":"Parth Patel,&nbsp;Prasad Pichare,&nbsp;Aarti P. More","doi":"10.1007/s00289-026-06713-x","DOIUrl":"10.1007/s00289-026-06713-x","url":null,"abstract":"<div><p>Superhydrophobic polymeric foams form an important category of advanced functional materials that demonstrate water contact angles of more than 150° and low sliding angles owing to the synergy between low energy surfaces and hierarchical porous architectures. Their open-cell three-dimensional structure confers a large specific surface a41rea, fast oil absorption, toughness, and reusability, which cannot be obtained in traditional hydrophobic films. Herein, a critical overview of current developments in the field of superhydrophobic polymeric foams is presented, covering fundamental concepts in the theory of wetting phenomena (Cassie-Baxter and Wenzel states), scientific principles underlying superhydrophobicity in terms of both microstructure and chemistry, and common modes of failure associated with the limited lifetime of these materials. A systematic review of foam structures made from polyurethane, polystyrene, polypropylene, polyethylene, Polyethylene terephthalate(PET), Ethylene propylene diene monomer (EPDM), Polylactic acid (PLA), cellulose, and hybrid matrices is provided, addressing their fabrication approaches such as sol-gel methods, chemical vapor deposition, supercritical CO₂ foaming, melt mixing, freeze drying, electrospinning, and bioinspired designs of the surface. Capillary-driven infiltration, connected pores, and wettability gradients of the internal structure, which determine the efficiency of oil absorption are discussed. Applications include oil spill cleanup, self-cleaning properties, anti-icing applications, thermal insulation, flame resistance, electromagnetic shielding, and pressure sensors. The key problems such as toxicity of fluorinated modifiers, limitations associated with scalability, mechanical vulnerability of coating surfaces, and the discrepancies between lab results and practical outcomes are addressed in this review. Finally, this paper presents the focus areas for further research on fluorine-free chemical systems, self-repairing structures inspired by nature, and scalable fabrication processes at reasonable costs.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132134","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, mechanical characterization, and applications of polymeric soft solids for vibration isolation: a critical review","authors":"Devendra Y. Shahare,&nbsp;Y. M. Puri,&nbsp;Avinash A. Thakre","doi":"10.1007/s00289-026-06704-y","DOIUrl":"10.1007/s00289-026-06704-y","url":null,"abstract":"<div><p>Polymeric soft solids are widely employed for vibration isolation due to their low elastic moduli, high deformability, and pronounced viscoelastic energy dissipation. Typical polymeric damping materials exhibit elastic moduli in the range of 10²–10⁷ Pa, loss factors (tan δ) between 0.1 and 1.2, and effective vibration attenuation over frequencies spanning 1–10³ Hz, depending on polymer chemistry, crosslink density, and temperature. Mechanical energy dissipation in these materials arises from molecular relaxation, segmental motion, and internal friction within polymer networks, which can reduce transmitted vibration amplitudes by 30–80% in practical isolation systems. This critical review systematically examines the synthesis routes, mechanical and rheological characterization, and vibration isolation applications of polymeric soft solids, including elastomers, gels, polymer blends, nanocomposites, and architected soft materials. Classical and advanced viscoelastic models are discussed in relation to experimentally measured storage modulus (E′), loss modulus (Eʺ), and damping factor (tan δ) obtained via dynamic mechanical analysis and rheometry. Recent developments in tough hydrogels, hybrid polymer systems, and soft metamaterials demonstrating enhanced broadband damping, nonlinear energy dissipation, and durability are critically assessed. Key challenges related to long-term stability, environmental sensitivity, and frequency-dependent performance are identified, and future research directions focusing on structure–property–performance optimization for advanced vibration isolation are proposed.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133300","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":"Self-healing bio-based epoxy vitrimers containing dual dynamic vinylogous urethane and disulfide bonds","authors":"Ryota Takeda,&nbsp;Kaito Sugane,&nbsp;Mitsuhiro Shibata","doi":"10.1007/s00289-026-06726-6","DOIUrl":"10.1007/s00289-026-06726-6","url":null,"abstract":"<div><p>Bio-based vitrimers have attracted considerable attention owing to their carbon neutrality, and dynamic covalent bond exchange, which can enable self-healing and reprocessing. In this study, bio-based epoxy vitrimers containing dual dynamic vinylogous urethane and disulfide bonds were prepared through the thermal curing of polyglycerol polyglycidyl ether (PGPE), glycerol tris(acetoacetate) (GLAA), cystamine (CTA), and dimer diamine (DDA, Priamine™ 1075). The resulting vitrimer films were designated as VUE-C/D-<i>a</i>/<i>b</i>, where <i>a</i>/<i>b</i> represents the amine molar ratio of CTA to DDA (<i>a</i>/<i>b</i> = 0/4, 1/3, 2/2, 3/1). For comparison, an epoxy vitrimer containing only vinylogous urethane bonds (VUE-H/D-1/3) was prepared under the same conditions as VUE-C/D-1/3 except that hexamethylene diamine (HMDA) was used instead of CTA. The glass transition temperature (<i>T</i>_g), tensile modulus, and tensile strength of the VUE-C/D films increased with increasing feed CTA/DDA ratio. Compared with VUE-C/D-1/3, VUE-H/D-1/3 exhibited higher tensile modulus and tensile strength but a slightly lower <i>T</i>_g. Stress relaxation experiments showed that VUE-C/D-1/3 exhibited a shorter relaxation time than VUE-H/D-1/3 at 100–140 ℃. All cured films exhibited self-healing behavior and could be healed at least three times by hot-pressing at 140 ℃ for 3 h under 0.5 MPa. Among the cured films, VUE-C/D-1/3 exhibited the highest healing efficiency (<i>η</i>_σ = 86%) in terms of tensile strength recovery, whereas VUE-H/D-1/3 showed a lower <i>η</i>_σ (63%). These results demonstrate the beneficial effect of combining vinylogous urethane and disulfide dynamic bonds on the self-healing performance of highly bio-based epoxy vitrimers.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-026-06726-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133195","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":"Ion transport, structural and thermal studies on PVdF-HFP based polymer electrolytes with varying NaI salt concentration","authors":"Akanksha Tripathi,&nbsp;Kavita Krashna Moorti,&nbsp;R. P. Kumhar","doi":"10.1007/s00289-026-06716-8","DOIUrl":"10.1007/s00289-026-06716-8","url":null,"abstract":"<div><p>Poly (vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) based polymer electrolyte films with varying concentrations of sodium iodide (NaI) were prepared using solution casting technique. The influence of NaI doping on the ionic conductivity of the films was systematically investigated using electrochemical impedance spectroscopy (EIS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and Differential scanning calorimetry (DSC). Highest ionic conductivity is observed at 0.8 M NaI at room temperature is 9.68 × 10^− 3 S cm^− 1. The investigation of temperature dependance conductivity shows that Arrhenius and Vogel-Tamman-Fulcher (VTF) behavior work together to regulate ion conduction. Ionic and polymer segmental motions appear to be highly connected, according to the VTF graph analysis. The cation transference number was determined to be 0.88672, indicating dominant ionic conduction. Cyclic voltammetry (CV) revealed an electrochemical stability window ranging from − 1.5 V to + 1.5 V. Structural and thermal analyses using XRD and FTIR confirmed successful salt incorporation, while the DSC results indicated enhanced amorphous characteristics in the polymer matrix.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133342","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":"Grape pomace oil loaded PLA electrospun fibers: characterization and evaluation as promising novel bioactive wound dressing","authors":"Marcos Leon-Bejarano,&nbsp;Fransheska Semidey,&nbsp;Carmen Lizette Del Toro-Sánchez,&nbsp;Maribel Ovando-Martínez,&nbsp;Teresa del Castillo-Castro,&nbsp;María Mónica Castillo-Ortega,&nbsp;Senay Simsek,&nbsp;José Carmelo Encinas-Encinas","doi":"10.1007/s00289-026-06727-5","DOIUrl":"10.1007/s00289-026-06727-5","url":null,"abstract":"<div><p>Bioactive wound dressings that combine structural support with therapeutic activity are gaining increasing attention in tissue repair applications. This study explores incorporating grape pomace oil (GPO) from winery byproducts into electrospun polylactic acid (PLA) fibers to develop a novel wound dressing. PLA-GPO mats were produced with GPO at different concentrations (0, 5, 10, and 20% w/v) and characterized for their morphological, chemical, and biological properties. Scanning electron microscopy revealed fiber diameters of 401–911 nm, with increasing GPO content yielding thicker, rougher, and more fused fibers. FTIR, UV-Vis spectroscopy, color measurement, and differential scanning calorimetry confirmed successful GPO encapsulation within the fibers. All mats exhibited hydrophobic surfaces (water contact angles of 100°–132°), and porosity decreased from 89% to 77% with increasing GPO content, while the 10% GPO formulation showed the highest swelling capacity (422%). The mats displayed strong antioxidant activity (up to 69% ABTS radical scavenging) and antibacterial activity against <i>Staphylococcus aureus</i>, <i>Enterococcus faecalis</i>, <i>Klebsiella pneumoniae</i>, and <i>Proteus mirabilis</i> through a contact-killing mechanism, while maintaining excellent blood compatibility (hemolysis &lt; 0.5% for all formulations). Collectively, these results establish PLA-GPO electrospun mats as promising multifunctional platforms for bioactive wound dressing applications, offering a sustainable route to valorize winery byproducts in biomedical materials.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133299","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}