Macromolecular Materials and Engineering最新文献

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Bilayer Wound Dressing Based on Green-Synthesized ZnO-Reinforced 3D-Bioprinted Scaffolds and Electrospun PVA-Methotrexate Nanofibers 基于绿色合成zno增强生物3d打印支架和静电纺pva -甲氨蝶呤纳米纤维的双层伤口敷料
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-07-07 DOI: 10.1002/mame.70224
Ahmad Saqib Qaeym, Akın Guven, Merve Ekmen, Ayse Betul Bingol, Busra Oktay, Fatih Ciftci, Cem Bulent Ustundag
{"title":"Bilayer Wound Dressing Based on Green-Synthesized ZnO-Reinforced 3D-Bioprinted Scaffolds and Electrospun PVA-Methotrexate Nanofibers","authors":"Ahmad Saqib Qaeym,&nbsp;Akın Guven,&nbsp;Merve Ekmen,&nbsp;Ayse Betul Bingol,&nbsp;Busra Oktay,&nbsp;Fatih Ciftci,&nbsp;Cem Bulent Ustundag","doi":"10.1002/mame.70224","DOIUrl":"https://doi.org/10.1002/mame.70224","url":null,"abstract":"<p>The clinical management of complex surgical wounds requires a transition from passive barriers to multifunctional scaffolds that combine structural support with therapeutic action. This study reports a bilayer wound dressing integrating a green-synthesized zinc oxide (ZnO)-reinforced 3D-printed poly(lactic acid (PLA) framework with an electrospun poly(vinyl alcohol) (PVA) -methotrexate (MTX) nanofibrous layer. Unlike standalone electrospun mats, which often fail during handling, the 3D-printed backbone achieved a tensile strength of 34.1 ± 2.1 MPa and a Young's modulus of 2100 ± 145 MPa, providing a 6-fold increase in mechanical resilience compared to single-layer fibrous dressings. Morphological analysis confirmed seamless interlocking at the interface, while thermal evaluation showed stabilization of the PLA phase with a Tm shift to 173.6°C. Pharmacokinetic modeling confirmed a controlled non-Fickian diffusion mechanism (<i>n</i> = 0.58), enabling sustained MTX release and reducing the burst release often seen in conventional topical systems. Green-synthesized ZnO nanoparticles imparted antibacterial activity, with inhibition zones of 15.26 and 18.23 mm against <i>E. coli</i> and <i>S. aureus</i>, respectively. In vitro cytotoxicity assays using L929 fibroblasts showed cell viability above 120% by day 14. These findings demonstrate that the proposed bilayer system offers a mechanically robust and therapeutically promising alternative to traditional wound care materials.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 7","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of Adhesion in Multi-Material TPE Systems Using T-Peel Tests and Taguchi-Based Parameter Optimization 基于t -剥离试验和taguchi参数优化的多材料TPE粘接性能研究
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-23 DOI: 10.1002/mame.70229
Sakine Deniz Varsavas, Gidugu Lakshmi Srinivas, Florian Arbeiter
{"title":"Investigation of Adhesion in Multi-Material TPE Systems Using T-Peel Tests and Taguchi-Based Parameter Optimization","authors":"Sakine Deniz Varsavas,&nbsp;Gidugu Lakshmi Srinivas,&nbsp;Florian Arbeiter","doi":"10.1002/mame.70229","DOIUrl":"https://doi.org/10.1002/mame.70229","url":null,"abstract":"<p>Multi-material pellet extrusion additive manufacturing (PEX-AM) can integrate ultrasoft thermoplastic elastomers (TPEs) that are impractical as filaments. However, the reliability of the interfacial adhesion remains unknown. This study aims to quantify and optimize adhesion in ultrasoft (TPE30-00) and soft (TPE45A) TPE systems manufactured via PEX-AM. FT-IR and thermal analyses are conducted to identify material and define stable processing windows. The processing windows of 195°C–225°C (TPE30-00) and 195°C–245°C (TPE45A) are chosen accordingly. Interfacial performance is assessed using a modified ISO 11339 T-peel geometry. Furthermore, a design of experiments (DoE) with a Taguchi L9 orthogonal array evaluates the main effects of head temperature/flow couples and raster angles for both materials. Mean peel resistance ranges from 273 to 881 N/m. The dominant factor is the TPE30-00 head temperature/flow setting, followed by the raster angle of the TPE45A. The DoE increases the optimum peel resistance to 964.8 N/m and shifts failure toward cohesive fibrillation of the TPE30-00 interlayer rather than premature interfacial debonding. Durability is tested by displacement-controlled cyclic shear (Δδ = 10 mm, 2 Hz) to 10<sup>6</sup> cycles. Dynamic modulus remains essentially stable, with changes lower than 4%, while the secant modulus decreases, consistent with viscoelastic/preloaded relaxation rather than interfacial degradation.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70229","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reprocessable and Repairable Bio-Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing 用于增材制造的可再加工和可修复的丙烯酸环氧化菜籽油生物基Vitrimers
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-21 DOI: 10.1002/mame.70228
Sabine Greivule, Inga Besprozvannaja, Matilde Porcarello, Sergejs Gaidukovs
{"title":"Reprocessable and Repairable Bio-Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing","authors":"Sabine Greivule,&nbsp;Inga Besprozvannaja,&nbsp;Matilde Porcarello,&nbsp;Sergejs Gaidukovs","doi":"10.1002/mame.70228","DOIUrl":"https://doi.org/10.1002/mame.70228","url":null,"abstract":"<p>Thermosets are difficult to reprocess and often rely on petroleum-derived feedstocks, creating environmental and end-of-life challenges. This study addresses both issues by developing reprocessable bio-based vitrimers tailored for additive manufacturing. Acrylated epoxidized rapeseed oil (AERO) was synthesized as a renewable UV curable precursor for constructing vitrimer networks capable of intrinsic and catalyst-assisted transesterification. The influence of transesterification catalyst Zn(acac)<sub>2</sub>, AERO content, and reprocessing cycles was systematically studied through real-time curing behavior, stress relaxation, and thermo-mechanical characterization. Catalyst-free vitrimers exhibited notable stress relaxation of 34 min at elevated temperature due to the high density of <i>β</i>-hydroxyester groups, enabling intrinsic bond exchange. On the other hand, Zn(acac)<sub>2</sub>-containing vitrimers demonstrated enhanced reprocessability with relaxation times as low as 10 min. Tensile strength recovery reached 98% after the first and 50% after the second reprocessing cycle. TGA-FTIR analysis indicated increased CO<sub>2</sub> and carbonyl-rich volatile release in catalyst-containing vitrimers, consistent with dynamic bond exchange reactions. Finally, the developed vitrimers exhibited excellent vat photopolymerization 3D printability and repairability, with repaired printed parts exceeding the original tensile properties by up to 2.9 times. These findings highlight the potential of vegetable oil-based vitrimers as promising, customizable, repairable, and sustainable materials for next-generation advanced additive manufacturing and circular polymer design.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RETRACTION: Highly Bio-Based Unsaturated Polyester Resins with Improved Performance by Incorporating Isosorbide into the Polyester Prepolymer 缩回:高生物基不饱和聚酯树脂,通过将异山梨酯加入聚酯预聚物中来改善性能
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-21 DOI: 10.1002/mame.70267
{"title":"RETRACTION: Highly Bio-Based Unsaturated Polyester Resins with Improved Performance by Incorporating Isosorbide into the Polyester Prepolymer","authors":"","doi":"10.1002/mame.70267","DOIUrl":"https://doi.org/10.1002/mame.70267","url":null,"abstract":"<p><b>RETRACTION</b>: Y. Li, J. Qu, Z. Dai, J. Jiang, J. Fu, F. Fu, and X. Liu, “Highly Bio-Based Unsaturated Polyester Resins with Improved Performance by Incorporating Isosorbide into the Polyester Prepolymer,” <i>Macromolecular Materials and Engineering</i> 307, no. 9 (2022): 2200203, https://doi.org/10.1002/mame.202200203.</p><p>The above article, published online on 10 June 2022 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, David Huesmann; and Wiley-VCH GmbH. Concerns were raised on PubPeer [1] regarding duplicated images in Figure 8 for composite samples representing different experimental results. These duplications were confirmed by the publisher. The authors responded to the concerns and provided the original data to the publisher, but their response was not sufficient to resolve the issue. Because the editor has lost confidence in the reported results and conclusions, the article must be retracted. The authors have been informed of this decision.</p><p><b>Reference</b>:</p><p>[1] Yong-Chang Zhou, “Highly Bio-Based Unsaturated Polyester Resins with Improved Performance by Incorporating Isosorbide into the Polyester Prepolymer,” <i>PubPeer</i>, 2025, https://pubpeer.com/publications/9C35EDF5556F70CE62645BAE1B1C57.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70267","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flame-Retardant Cellulose-Chitosan Blend Fibers Based on Phytic Acid-Derived Phosphorylated Ureido-Chitosan 基于植酸衍生磷酸化脲壳聚糖的阻燃纤维素-壳聚糖共混纤维
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-21 DOI: 10.1002/mame.70268
Nicolaj Wendland, Frank Hermanutz, Antje Ota, Carlo Pani, Michael R. Buchmeiser
{"title":"Flame-Retardant Cellulose-Chitosan Blend Fibers Based on Phytic Acid-Derived Phosphorylated Ureido-Chitosan","authors":"Nicolaj Wendland,&nbsp;Frank Hermanutz,&nbsp;Antje Ota,&nbsp;Carlo Pani,&nbsp;Michael R. Buchmeiser","doi":"10.1002/mame.70268","DOIUrl":"https://doi.org/10.1002/mame.70268","url":null,"abstract":"<p>The synthesis of a biobased flame-retardant additive for cellulose prepared from phytic acid-derivatized chitosan for the preparation of flame-retardant cellulose fibers and fabrics is reported. Phosphorylated ureido-chitosan (PUC) with a nitrogen and phosphorus content of 9.5 and 3.1 wt.%, respectively, was prepared in quantitative yield by reacting chitosan with phytic acid and urea. A soluble form of PUC, i.e., PUC-S with an only slightly decreased phosphorus content of 1.9 wt.%, was obtained via acid hydrolysis. Blend fibers were dry-jet wet spun from a 3:1 mixture of cellulose and PUC-S in the ionic liquid 1-ethyl-3-methylimidazolium octanoate ([EMIM]<sup>+</sup>[Oct]<sup>−</sup>), had a phosphorus content of 0.46 wt.% and allowed for the fabrication of knitted fabrics. No significant changes in the structure of cellulose were determined by wide-angle X-ray scattering upon mixing with PUC-S. Accordingly, the mechanical properties of the cellulose/PUC-S blend fibers did not differ significantly from those of pure cellulose fibers. Cellulose/PUC-S fabrics showed good char formation with a residual mass of 42.9% at 600°C and a substantially improved limiting oxygen index (LOI) of up to 26.0% as compared to 18.4% for fabrics prepared from pure cellulose.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70268","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Front Cover: Preparation and Mapping of Alginate Morphologies Using Inverted Nozzle Pressurised Gyration 封面:利用倒置喷嘴加压旋转制备和绘制海藻酸盐形态
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-21 DOI: 10.1002/mame.70266
Jiaxuan Ren, Yanqi Dai, Angelo Delbusso, Shervanthi Homer-Vanniasinkam, Mohan Edirisinghe
{"title":"Front Cover: Preparation and Mapping of Alginate Morphologies Using Inverted Nozzle Pressurised Gyration","authors":"Jiaxuan Ren,&nbsp;Yanqi Dai,&nbsp;Angelo Delbusso,&nbsp;Shervanthi Homer-Vanniasinkam,&nbsp;Mohan Edirisinghe","doi":"10.1002/mame.70266","DOIUrl":"https://doi.org/10.1002/mame.70266","url":null,"abstract":"<p>The newest variant of pressurized gyration, inverted nozzle pressurized gyration (INPG), enables the transformation of Laminaria-derived alginate into diverse morphologies ranging from films and ribbons to fibers. By regulating solution rheology, coagulation kinetics, pressure, and working distance, morphology-parameter mapping is established to guide the controlled fabrication of regenerated alginate architectures. This work highlights a scalable route towards sustainable fibrous functional materials for future high technology applications. More details can be found in the Research Article by Mohan Edirisinghe and co-workers. (DOI: 10.1002/mame.70262).\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70266","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable Flame Retardant System with Thermomechanically Modified Stinging Nettle Tailored for Polyamide 12 为聚酰胺12量身定制的热机械改性荨麻可持续阻燃系统
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-21 DOI: 10.1002/mame.70259
Daria Rutkowska, Kamila Sałasińska, Milena Leszczyńska, Michał Misiak, Aleksander Hejna, Zaida Ortega, Marcin Borowicz, Sławomir Michałowski, Michał Gloc, Olga Mysiukiewicz, Tomasz Cygan, Joanna Paciorek-Sadowska, Mateusz Barczewski
{"title":"Sustainable Flame Retardant System with Thermomechanically Modified Stinging Nettle Tailored for Polyamide 12","authors":"Daria Rutkowska,&nbsp;Kamila Sałasińska,&nbsp;Milena Leszczyńska,&nbsp;Michał Misiak,&nbsp;Aleksander Hejna,&nbsp;Zaida Ortega,&nbsp;Marcin Borowicz,&nbsp;Sławomir Michałowski,&nbsp;Michał Gloc,&nbsp;Olga Mysiukiewicz,&nbsp;Tomasz Cygan,&nbsp;Joanna Paciorek-Sadowska,&nbsp;Mateusz Barczewski","doi":"10.1002/mame.70259","DOIUrl":"https://doi.org/10.1002/mame.70259","url":null,"abstract":"<p>The growing demand for environmentally responsible flame retardant solutions is driving the development of systems that combine conventional phosphorus chemistry with renewable plant-based components. This study explores a novel strategy for developing a flame-retardant system for polyamide 12 (PA12) based on the synergistic action of melamine polyphosphate (MPP) and thermomechanically modified stinging nettle (U) as a bio-derived component. Thermal treatment is employed to enhance the stability of the lignocellulosic structure, enabling incorporation into high-performance polymer formulations. Materials containing 20 wt.% of flame retardant system, in which 5 or 10 wt.% of the modified plant additive was used, were manufactured to assess their contribution to thermal and fire behavior. Flammability was assessed using a thermogravimetric analysis and evolved gas analysis (TGA/FTIR), limiting oxygen index (LOI), UL 94 test, pyrolysis combustion flow calorimetry (PCFC), and cone calorimetry. These techniques were supported by microstructural characterization to correlate internal morphology with macroscopic performance. The results demonstrate that the thermomechanically modified plant component actively participates in the flame retardant mechanism, improving the efficiency of MPP by enhancing char formation and altering degradation pathways. The proposed approach offers a viable route to sustainable flame retardant materials, suitable for advanced engineering applications.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70259","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148324286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable Bioactive Hydrogels Engineered with Liquidambar orientalis Extracts: pH-Dependent Release Behavior and Wound Healing Potential 可持续生物活性水凝胶工程与东方丹提取物:ph依赖的释放行为和伤口愈合潜力
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-18 DOI: 10.1002/mame.70265
Meltem Taş Küçükaydın, Mehmet Emin Duru, Aydın Demiray, Selçuk Küçükaydın, Özgür Ceylan
{"title":"Sustainable Bioactive Hydrogels Engineered with Liquidambar orientalis Extracts: pH-Dependent Release Behavior and Wound Healing Potential","authors":"Meltem Taş Küçükaydın,&nbsp;Mehmet Emin Duru,&nbsp;Aydın Demiray,&nbsp;Selçuk Küçükaydın,&nbsp;Özgür Ceylan","doi":"10.1002/mame.70265","DOIUrl":"https://doi.org/10.1002/mame.70265","url":null,"abstract":"<p>Bioactive hydrogel films were developed by incorporating <i>Liquidambar orientalis</i> leaf extract (LOLE) and resin extract (LORE) into PVA/starch, PVA/chitosan, chitosan/gelatin, and chitosan matrices. HPLC-DAD identified myricetin as a major LOLE marker and trans-cinnamic acid as the predominant LORE compound, while SEM and FT-IR analyses supported extract incorporation and possible interactions within the hydrogel networks. The films exhibited polymer- and extract-dependent physicochemical behavior. LOLE-loaded chitosan films showed the highest swelling capacity (350%) and the highest in vitro mass loss after 14 days. Release studies demonstrated matrix-dependent and pH-dependent behavior within the tested pH range, with faster release generally observed at pH 5.5 than at pH 7.4; LOLE-loaded chitosan/gelatin films released 85.3% of the extract within 12 h at pH 5.5. LOLE-loaded hydrogels showed stronger antioxidant activity, whereas LORE-loaded films exhibited stronger antimicrobial performance against wound-associated microorganisms, reflecting their distinct phytochemical profiles. The extracts also showed antibiofilm, anti-quorum sensing, enzyme-inhibitory, and preliminary scratch wound closure activities, with no apparent cytotoxicity toward HEK-293T cells. LORE showed notable tyrosinase inhibition (IC<sub>50</sub>: 20.18 µg/mL), suggesting pigmentation-related relevance. Overall, these findings support further investigation of <i>L. orientalis</i>-derived hydrogel films as sustainable bioactive wound dressing platforms, although mechanical, stability, and in vivo validations remain necessary.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70265","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocured Siloxane-Containing Emulsion-Templated Porous Polymer Materials With Exceptional Mechanical Resilience 具有优异机械弹性的光固化含硅氧烷乳液模板多孔聚合物材料
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-18 DOI: 10.1002/mame.70258
Andrew M. Hickman, Jennifer J. Rolls, Ahmed M. Eissa, Neil R. Cameron, Daniel J. Keddie, Tara L. Schiller
{"title":"Photocured Siloxane-Containing Emulsion-Templated Porous Polymer Materials With Exceptional Mechanical Resilience","authors":"Andrew M. Hickman,&nbsp;Jennifer J. Rolls,&nbsp;Ahmed M. Eissa,&nbsp;Neil R. Cameron,&nbsp;Daniel J. Keddie,&nbsp;Tara L. Schiller","doi":"10.1002/mame.70258","DOIUrl":"https://doi.org/10.1002/mame.70258","url":null,"abstract":"<p>The preparation of siloxane-containing emulsion-templated porous polymers via thiol-ene chemistry is explored. Emulsion templating, a technique that utilizes a liquid-liquid system separated into two or more phases, was exploited to produce monolithic materials with controlled morphologies from 1,3-divinyltetramethyldisiloxane (DVTMDS) and trimethylolpropane tris(3-mercaptopropionate) (TMTMP). Emulsions were prepared using varying ratios of dichloroethane and chloroform, then cured photochemically to deliver flexible emulsion-templated porous polymers. The differences in polarity and density influenced emulsion stability and, in turn, the void and pore sizes (and the respective distributions) of the resulting materials as ascertained by SEM analysis. The mechanical properties of the resulting materials were tested under cyclic compression for up to 100 cycles and limited changes in hysteresis were observed. Using a ratio of 25:75 DCE:CHCl<sub>3</sub> appears optimal in the preparation of DVTMDS/TMPTMP based emulsion-templated porous polymers; samples prepared using this ratio had the largest mean interconnecting pore sizes by SEM, and showed both the least damage and most consistent hysteresis from compression testing. This sample was taken further to 5000 compression cycles, after which exceptional mechanical performance was maintained demonstrating the outstanding properties of these porous siloxane-containing materials.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70258","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antioxidant and Degradable Poly(Squaryl Thioester) Networks 抗氧化和可降解聚(方基硫酯)网络
IF 5.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2026-06-14 DOI: 10.1002/mame.70264
Emre Akar, Mehmet Aytug Sinmaz, Baris Yucel, Emrah Çakmakçı, Hakan Durmaz
{"title":"Antioxidant and Degradable Poly(Squaryl Thioester) Networks","authors":"Emre Akar,&nbsp;Mehmet Aytug Sinmaz,&nbsp;Baris Yucel,&nbsp;Emrah Çakmakçı,&nbsp;Hakan Durmaz","doi":"10.1002/mame.70264","DOIUrl":"https://doi.org/10.1002/mame.70264","url":null,"abstract":"<p>Squaric acid, hence the name, is almost square-shaped, and this intriguing moiety has recently attracted considerable attention from the polymer community. Herein, we prepared thermoset materials by using squaryl dichloride (SqCl<sub>2</sub>) and multifunctional thiol compounds. Thermal and optical properties of the prepared thermosets were determined. Due to the rigid aromatic squarate motifs, the resulting polythioester thermosets exhibited exceptional thermal properties. The prepared films were transparent and yellow. The films exhibited moderate to excellent gel content values. Moreover, the prepared networks had hydrophilic surfaces and absorbed around 10% water. The thermoset films were unaffected by aqueous acidic media. On the other hand, all thermosets degraded within 3 h in 10% aqueous sodium hydroxide solutions. Finally, squaryl-based thermosets displayed antioxidant properties.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"311 6","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.70264","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148281965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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