Macromolecular Materials and Engineering最新文献

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Highly Performing Polysaccharide Hydrogels can Replace Acrylic Acid-Based Superabsorbent Polymers in Sanitary Napkins 高性能多糖水凝胶可替代丙烯酸基高吸水性聚合物用于卫生巾
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-03-13 DOI: 10.1002/mame.202570010
Saeed Ismaeilimoghadam, Bahareh Azimi, Mehdi Jonoobi, Serena Danti
{"title":"Highly Performing Polysaccharide Hydrogels can Replace Acrylic Acid-Based Superabsorbent Polymers in Sanitary Napkins","authors":"Saeed Ismaeilimoghadam,&nbsp;Bahareh Azimi,&nbsp;Mehdi Jonoobi,&nbsp;Serena Danti","doi":"10.1002/mame.202570010","DOIUrl":"https://doi.org/10.1002/mame.202570010","url":null,"abstract":"<p><b>Back Cover</b>: Sodium alginate (SA)-based super absorbent polymers (SAPs) show an excellent performance for menstrual fluid absorption due to the covalent and hydrogen bonds, in addition to the electrostatic interaction between SA functional groups and amino acids in blood. Although SA-based SAPs have lower water absorption capacity than acrylic acid (AA)-based SAPs, they can replace traditional AA-based SAPs in sanitary napkins. More details can be found in article 2400278 by Mehdi Jonoobi, Serena Danti, and co-workers.\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":"310 3","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202570010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602570","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
Cerium Oxide Decorated Graphene Nanolayers Filled Polyvinylidene Fluoride Nanofibers as Optical Piezoelectric Sensors 作为光学压电传感器的氧化铈装饰石墨烯纳米层填充聚偏氟乙烯纳米纤维
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-18 DOI: 10.1002/mame.202400350
Nour Bader, Swathi Yempally, Firas Al-Ashker, Maryam Al-Ejji, Deepalekshmi Ponnamma
{"title":"Cerium Oxide Decorated Graphene Nanolayers Filled Polyvinylidene Fluoride Nanofibers as Optical Piezoelectric Sensors","authors":"Nour Bader,&nbsp;Swathi Yempally,&nbsp;Firas Al-Ashker,&nbsp;Maryam Al-Ejji,&nbsp;Deepalekshmi Ponnamma","doi":"10.1002/mame.202400350","DOIUrl":"https://doi.org/10.1002/mame.202400350","url":null,"abstract":"<p>This article introduces the fabrication of optical piezoelectric sensors using cerium oxide (CeO)-decorated graphene nanolayers incorporated into polyvinylidene fluoride hexafluoropropylene (PVDF-HFP) fibers. Electrospinning method is employed to create the composite nanofibers, resulting in a highly aligned and consistent fibrous structure. Graphene nanolayers are functionalized onto CeO nanoparticles using a rapid and scalable solution-based process. The resulting hybrid composite material exhibited superior piezoelectric characteristics compared to pure PVDF-HFP. A fiber Bragg grating sensor is integrated into the PVDF-HFP nanofiber composite to enable optical sensing. As a strain gauge, the sensor detected variations in fiber length caused by mechanical deformation. The addition of CeO-decorated graphene nanolayers enhanced the piezoelectric response of the PVDF-HFP nanofibers, producing an electrical signal proportional to the applied mechanical stress. The sensor's performance is evaluated under various mechanical stimuli, including compression, bending, and vibration. The sensor demonstrated excellent sensitivity, repeatability, and fast response times. The proposed optical piezoelectric sensor, based on PVDF-HFP nanofibers filled with CeO-decorated graphene nanolayers, shows great potential for applications in robotics, wearable electronics, and structural health monitoring. This sensor technology is highly appealing for next-generation smart materials and devices due to its enhanced piezoelectric properties, optical sensing capabilities, and mechanical resilience.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400350","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831122","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
An Injectable PEG/Diacerein-Based Anti-Inflammatory Hydrogel for Promoting Cartilage Regeneration: An In Vivo Study 一种可注射的聚乙二醇/二乙胺基抗炎水凝胶促进软骨再生:体内研究
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-17 DOI: 10.1002/mame.202400382
Jing Mi, Linghui Meng, Yutian Wang, Huanyu Zhang, Jing Jin, Jianhao Huang, Jingwei Lu, Pu Ying, Lan Li
{"title":"An Injectable PEG/Diacerein-Based Anti-Inflammatory Hydrogel for Promoting Cartilage Regeneration: An In Vivo Study","authors":"Jing Mi,&nbsp;Linghui Meng,&nbsp;Yutian Wang,&nbsp;Huanyu Zhang,&nbsp;Jing Jin,&nbsp;Jianhao Huang,&nbsp;Jingwei Lu,&nbsp;Pu Ying,&nbsp;Lan Li","doi":"10.1002/mame.202400382","DOIUrl":"https://doi.org/10.1002/mame.202400382","url":null,"abstract":"<p>Cartilage defects are common joint disorders that, if left untreated, may progress to severe degenerative joint conditions. Inflammatory response plays a critical role in the pathogenesis of cartilage damage. Hydrogels incorporating diacerein, an anti-inflammatory drug used in clinical settings, can mitigate inflammation that impairs cartilage repair. It is hypothesized that the direct injection of a hydrogel scaffold combining diacerein and polydopamine into cartilage defect sites can enhance localized treatment, reduce surgical risks, and expedite recovery. Therefore, in this study, a hydrogel infused with diacerein is developed to investigate its efficacy for cartilage restoration. By crosslinking poly(ethylene glycol) diacrylate, four-arm polyethylene glycol-functionalized diacerein, hyaluronic acid, and polydopamine, an injectable hydrogel with superior properties is achieved. In vitro evaluations confirm the mechanical strength and biocompatibility of the hydrogel, and in vivo studies demonstrate its effectiveness in cartilage repair and anti-inflammatory activity in a rat model. These findings indicate that hydrogels are promising materials for addressing cartilage defects and advancing tissue engineering and biological implantation strategies.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400382","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074393","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
Bio-Based Epoxy Resins Derived from Eugenol with High Glass Transition Temperatures as Substitutes for DGEBA 高玻璃化转变温度的丁香酚生物基环氧树脂作为DGEBA的替代品
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-14 DOI: 10.1002/mame.202400394
Elisabeth Schamel, Florian Bauer, Herbert Schlachter, Gerd Wehnert, Dominik Söthje
{"title":"Bio-Based Epoxy Resins Derived from Eugenol with High Glass Transition Temperatures as Substitutes for DGEBA","authors":"Elisabeth Schamel,&nbsp;Florian Bauer,&nbsp;Herbert Schlachter,&nbsp;Gerd Wehnert,&nbsp;Dominik Söthje","doi":"10.1002/mame.202400394","DOIUrl":"https://doi.org/10.1002/mame.202400394","url":null,"abstract":"<p>Epoxy resins (EPs) are crucial for high-performance applications like lightweight materials, due to their excellent properties. However, the commonly used diglycidyl ether of bisphenol A (DGEBA) has two major disadvantages: it is synthesized mainly from petrochemicals and includes the health concerning bisphenol A. Eugenol is a bio-based aromatic compound that can be modified into di- or triglycidyl ether. Through investigations four monomers are obtained based on eugenol and crosslinked with two curing agents isophorone diamine and 4,4′-diaminodiphenyl sulfone to compare the properties of the resulting EPs with references containing DGEBA. Using new synthesis routes, the bio-content of the monomers can be increased up to 94 wt%. Intramolecular cyclization occurs if a hydroxy group is in <i>ortho</i>-position to the glycidyl ether group. The crosslinking conditions of the bio-based monomers are comparable to or lower than those of DGEBA. The eugenol-based triglycidyl monomers exhibit very high glass transition temperatures of up to 271 °C, almost 50 °C above the reference value, which can enable their use for lightweight construction such as matrices for fiber-reinforced plastics. The char content of all bio-based EPs after pyrolysis is significantly higher in comparison to the references, which may have a favorable effect on fire resistance.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400394","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074245","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
CO2-Responsive Copolymers for Membrane Applications, Synthesis, and Performance Evaluation 二氧化碳响应共聚物在膜上的应用、合成和性能评价
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-14 DOI: 10.1002/mame.202570006
Emil Pashayev, Prokopios Georgopanos
{"title":"CO2-Responsive Copolymers for Membrane Applications, Synthesis, and Performance Evaluation","authors":"Emil Pashayev,&nbsp;Prokopios Georgopanos","doi":"10.1002/mame.202570006","DOIUrl":"https://doi.org/10.1002/mame.202570006","url":null,"abstract":"<p><b>Back Cover</b>: In article 2400290, Emil Pashayev and Prokopios Georgopanos present the design and synthesis of a carbon dioxide (CO<sub>2</sub>) responsive poly (N-[3-(dimethylamino)propyl]-acrylamide)-<i>b</i>-poly(methyl methacrylate) (PDMAPAm-<i>b</i>-PMMA) diblock copolymer via a two-step reversible addition–fragmentation chain-transfer (RAFT) polymerization, while also investigating the application of the synthesized polymer as a CO<sub>2</sub> membrane adsorber.\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":"310 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202570006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404551","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
Development and Evaluation of Poly(Lactic-Co-Glycolic Acid) Encapsulated Betulinic Acid Nanocarrier for Improved Anti-Tumor Efficacy 聚乳酸-羟基乙酸包封白桦酸纳米载体的研制及抗肿瘤效果评价
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-14 DOI: 10.1002/mame.202570004
Cyril Tlou Selepe, Khanyisile Sheer Dhlamini, Lesego Tshweu, Lusisizwe Kwezi, Bathabile Ramalapa, Suprakas Sinha Ray
{"title":"Development and Evaluation of Poly(Lactic-Co-Glycolic Acid) Encapsulated Betulinic Acid Nanocarrier for Improved Anti-Tumor Efficacy","authors":"Cyril Tlou Selepe,&nbsp;Khanyisile Sheer Dhlamini,&nbsp;Lesego Tshweu,&nbsp;Lusisizwe Kwezi,&nbsp;Bathabile Ramalapa,&nbsp;Suprakas Sinha Ray","doi":"10.1002/mame.202570004","DOIUrl":"https://doi.org/10.1002/mame.202570004","url":null,"abstract":"<p><b>Front Cover</b>: Natural anti-tumor agents are highly regarded for their low cytotoxicity towards healthy cells. However, their relatively short systematic half-life and low bioavailability impose hurdles for clinical application. This study introduces a strategy to surmount these obstacles by developing a drug delivery system employing biopolymeric emulsion techniques to optimize the therapeutic efficacy of a natural anti-tumor agent, betulinic acid. More details can be found in article 2400283 by Bathabile Ramalapa, Suprakas Sinha Ray, and co-workers. Suprakas Sinha Ray designed the cover art in collaboration with the team at INMYWORK Studio. \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":"310 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202570004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404550","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
Electrospun Nanofiber Platforms for Photodynamic Therapy: Role and Efficacy in Cancer, Antimicrobial, and Wound Healing Applications 用于光动力治疗的电纺丝纳米纤维平台:在癌症、抗菌和伤口愈合应用中的作用和功效
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-14 DOI: 10.1002/mame.202500014
Aslı Eldem, Yamaç Tekintaş, Muhammed Ucuncu, Nesrin Horzum
{"title":"Electrospun Nanofiber Platforms for Photodynamic Therapy: Role and Efficacy in Cancer, Antimicrobial, and Wound Healing Applications","authors":"Aslı Eldem,&nbsp;Yamaç Tekintaş,&nbsp;Muhammed Ucuncu,&nbsp;Nesrin Horzum","doi":"10.1002/mame.202500014","DOIUrl":"https://doi.org/10.1002/mame.202500014","url":null,"abstract":"<p>Electrospinning offers a versatile platform for developing nanofibrous scaffolds capable of enhancing the therapeutic potential of photodynamic therapy (PDT). Photosensitizer (PS) loaded fibers exhibit a high surface area-to-volume ratio, promoting efficient drug delivery, prolonged retention at the target site, and controlled release profiles. Inducing reactive oxygen species (ROS) generation through light activation offers a targeted therapeutic approach, selectively generating cytotoxic effects in cancerous or pathogenic cells while minimizing damage to healthy tissue. This selective cytotoxicity arises because the ROS are produced only in illuminated areas where PS releases and accumulates, limiting their harmful effects to desired regions. Additionally, PS-loaded fibers are highly effective in wound healing applications, promoting cell proliferation and tissue regeneration while providing a barrier against microbial infections. This review highlights recent advances in the design and biomedical application of PS-loaded nanofibers, emphasizing their influence on cell viability and effectiveness in microbial inhibition, thereby setting the stage for future innovations in cancer therapy, wound healing, and infection control.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202500014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074244","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
Issue Information: Macromol. Mater. Eng. 2/2025 发布信息:Macromol。板牙。Eng。2/2025
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-14 DOI: 10.1002/mame.202570005
{"title":"Issue Information: Macromol. Mater. Eng. 2/2025","authors":"","doi":"10.1002/mame.202570005","DOIUrl":"https://doi.org/10.1002/mame.202570005","url":null,"abstract":"","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202570005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404552","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
Graphene Applications in Composites, Energy, and Water Treatment 石墨烯在复合材料、能源和水处理领域的应用
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-09 DOI: 10.1002/mame.202400316
Maryam A. Saeed, Amor Abdelkader, Yousef Alshammari, Cristina Valles, Abdullah Alkandary
{"title":"Graphene Applications in Composites, Energy, and Water Treatment","authors":"Maryam A. Saeed,&nbsp;Amor Abdelkader,&nbsp;Yousef Alshammari,&nbsp;Cristina Valles,&nbsp;Abdullah Alkandary","doi":"10.1002/mame.202400316","DOIUrl":"https://doi.org/10.1002/mame.202400316","url":null,"abstract":"<p>Graphene, the 2D material and the basic building block of the sp<sub>2</sub> carbon family has received enormous attention from research and industrial communities due to its remarkable properties. Graphene's potential to be implemented is limitless and it varies from medical, water, energy, composites sectors, etc. In this paper, graphene potential in composites, energy storage, and water purification are highlighted. Reviewing, in particular, the crucial role of graphene/polymer interface in improving the mechanical properties of polymer nanocomposites and the effect of constitutive parameters such as graphene lateral size and surface chemistry. Moreover, the latest contributions of graphene and graphene derivatives in functional composites, such as sensors, actuators, hydrogels, and aerogels, are reviewed. This is followed by reviewing graphene and its derivatives for energy storage such as in lithium-ion batteries, metal–air batteries, and graphene-based supercapacitors. Finally, reporting the latest advances in graphene for water treatment, reviewing the different filtration/treatment methods, and the importance of graphene selective permeability properties.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400316","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831090","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
Impact of Raster Angle on 3D Printing of Poly(Lactic Acid)/Thermoplastic Polyurethane Blends: Effects on Mechanical and Shape Memory Properties 光栅角度对3D打印聚乳酸/热塑性聚氨酯共混物的影响:对机械和形状记忆性能的影响
IF 4.2 3区 材料科学
Macromolecular Materials and Engineering Pub Date : 2025-02-07 DOI: 10.1002/mame.202400427
Águeda Sonseca Olalla, Joaquín Lluch Cerezo, Vicente Ruedas Abarca, Lucas Rovira Soriano, Guido Mazzinari, Enrique Giménez Torres
{"title":"Impact of Raster Angle on 3D Printing of Poly(Lactic Acid)/Thermoplastic Polyurethane Blends: Effects on Mechanical and Shape Memory Properties","authors":"Águeda Sonseca Olalla,&nbsp;Joaquín Lluch Cerezo,&nbsp;Vicente Ruedas Abarca,&nbsp;Lucas Rovira Soriano,&nbsp;Guido Mazzinari,&nbsp;Enrique Giménez Torres","doi":"10.1002/mame.202400427","DOIUrl":"https://doi.org/10.1002/mame.202400427","url":null,"abstract":"<p>In this study, a 60:40 blend of poly(lactic acid) and thermoplastic polyurethane (PLA/TPU) is fabricated using fused material extrusion. The morphological, thermal, mechanical and thermoresponsive cyclic shape memory effect (SME) characteristics of 3D-printed specimens at various raster angles are investigated. This work introduces the innovative utilization of TPU's fibrillar alignment within a PLA matrix to achieve enhanced mechanical anisotropy and consistent shape memory performance. Morphological analysis reveals excellent printability, with the immiscible TPU phase forming submicron-diameter fibrils (≈0.78 ± µm) within the PLA matrix, leading to significant improvements in toughness and elongation at break when aligned with the printing direction and the load. Tensile test demonstrates anisotropy, with 0° raster specimens achieving a UTS of 16.1 ± 0.2 MPa and elongation at 305.5 ± 71.9%, compared to 4.5 ± 0.6 MPa and 10.8 ± 1.5% at 90°. Notably, despite the mechanical anisotropy, shape fixity ratios exceeded 95% and recovery ratios between 91 and 95% were achieved across all raster angles, demonstrating robustness in thermomechanical properties. These findings offer valuable insights into the relationship between morphology, mechanical characteristics, and shape memory behavior of PLA/TPU blends fabricated using fused material extrusion, positioning the material as a strong candidate for biomedical applications requiring precise shape recovery performance.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400427","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074689","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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