Michelle Vigogne, Carsten Zschech, Markus Stommel, Julian Thiele, Ines Kühnert
{"title":"Combining Injection Molding and 3D Printing for Tailoring Polymer Material Properties","authors":"Michelle Vigogne, Carsten Zschech, Markus Stommel, Julian Thiele, Ines Kühnert","doi":"10.1002/mame.202470021","DOIUrl":"https://doi.org/10.1002/mame.202470021","url":null,"abstract":"<p><b>Front Cover</b>: Single processing methods hardly cover the vast range of parameters needed to obtain polymer materials with integrated functionalities for increasingly complex applications. This study combines injection molding with precision additive manufacturing to produce customized hybrid materials, in particular to achieve selective mechanical reinforcement of injection molded objects by overprinting with microstructures. More details can be found in article 2400210 by Julian Thiele, Ines Kühnert, and co-workers. Cover art designed by Martin Schumann and Marie Zeil.\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":"309 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202470021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642230","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}
Abhishek Indurkar, Kristaps Rubenis, Aldo R. Boccaccini, Janis Locs
{"title":"Development and Characterization of Thermoresponsive Double-Network Nanocomposite Hydrogel for Bone Tissue Engineering","authors":"Abhishek Indurkar, Kristaps Rubenis, Aldo R. Boccaccini, Janis Locs","doi":"10.1002/mame.202400177","DOIUrl":"https://doi.org/10.1002/mame.202400177","url":null,"abstract":"<p>In this study, a thermoresponsive double-network (DN) nanocomposite hydrogel is developed. The primary hydrogel network comprises Pluronic P123, while the secondary network comprises gelatinmethacrylate (GELMA) and polyacrylamide (PAM). A systematic approach is adopted to develop DN hydrogels. Initially, the impact of Pluronic P123 concentrationon the mechanical properties of PAM-GELMA hydrogel is investigated. Results from the tensile strength and the oscillatory shear tests reveal that an increasing P123 concentration has a marginal effect on the storage modulus while significantly reducing the loss modulus of the PAM-GELMA hydrogel, thereby improving mechanical properties. Notably, DN3 hydrogel containing 7.5w/v% P123 in PAM-GELMA exhibits osteoid matrix-like mechanical properties. To further enhance the mechanical properties, citrate-containing amorphous calcium phosphate (ACP_CIT) is incorporated in DN3 hydrogel at varying concentrations. At a lower concentration of ACP_CIT (0.75 w/v%), the mechanical properties of DN3-ACP0.75 hydrogel are notably enhanced. Incorporating ACP_CIT in DN3 hydrogel (DN3-ACP0.75) decreases creep strain, rapid stress relaxation, and reduced water uptake capacity while maintaining the thermoresponsive behavior. Finally, an in vitro analysis confirms the cytocompatibility of the hydrogels with MC3T3-E1 cells, indicating the potential use in bone tissue engineering.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400177","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861134","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}
{"title":"RETRACTION: Thermoreversible Structurally Recoverable Dual-Network Elastomer Hydrogel","authors":"K. Lei, C. Sun, C. Yang, Z. Zheng, X. Wang","doi":"10.1002/mame.202470633","DOIUrl":"https://doi.org/10.1002/mame.202470633","url":null,"abstract":"<p>“Thermoreversible Structurally Recoverable Dual-Network Elastomer Hydrogel,” <i>Macromolecular Materials and Engineering</i> 305, no. 1 (2020): 1900633, https://doi.org/10.1002/mame.201900633.</p><p>The above article, published online on 03 December 2019 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, David Huesmann; and Wiley-VCH GmbH. The retraction has been agreed after an investigation took place when the authors requested a correction to the article, admitting they-had accidentally reused an image they previously published. Upon further review, the Editor-In-Chief saw that this reused image was-also clearly manipulated by the authors to create Figure 7b by rotation plus the removal of cells from the original image seen both in Figure 7a and also in the previous journal article figure. Upon questioning, the authors acknowledged they-had edited the previously published image. As a result, the figures, data, and conclusions are considered unreliable and therefore the article must be retracted.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202470633","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851471","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}
{"title":"Enhanced Mechanical and Multifunctional Properties of GNPs/CNTs Hybridized PLA Nanocomposites by Implementing Dual-Processing of Pickering Emulsion-Melt Blending Methods","authors":"Bozhen Wu, Yidong Wu, Maolin Zhang, Hongxin Guo, Tong Liu, Guangyi Lin, Tairong Kuang","doi":"10.1002/mame.202400306","DOIUrl":"https://doi.org/10.1002/mame.202400306","url":null,"abstract":"<p>Polylactic acid (PLA) composites with multifunctional properties and minimal filler content are increasingly in demand across various industries. However, achieving a balance between high mechanical strength, electrical conductivity, thermal conductivity, and electromagnetic interference (EMI) shielding remains challenging. In this study, a dual-processing strategy combining Pickering emulsion templating and melt blending is presented to hybridize 1D carbon nanotubes (CNTs) and 2D graphene nanoplatelets (GNPs) within a PLA matrix. This approach successfully forms a stable dual-filler network, ensuring uniform dispersion of the fillers. The results show that this method significantly enhances the performance of the resulting PM-PG<i><sub>x</sub></i>C<i><sub>y</sub></i> composites (P: Pickering emulsion; M: melt blending; x and y: mass fractions of GNPs and CNTs, respectively). Specifically, the PM-PG<i><sub>1.43</sub></i>C<i><sub>1.43</sub></i> composite exhibits remarkable improvements in mechanical strength (56.2 MPa), electrical conductivity (43.5 S m<sup>−1</sup>), EMI shielding effectiveness (20.1 dB), and thermal conductivity (0.34 W m·K<sup>−1</sup>), outperforming composites prepared using either method alone. These findings indicate that the dual-processing strategy effectively combines 1D and 2D fillers, facilitating superior interfacial interactions and enhancing the multifunctional properties of PLA-based composites. This study offers a new approach to achieving high-performance PLA composites with low filler content, offering significant potential for applications in electronics, packaging, and EMI shielding technologies.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 3","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400306","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602490","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}
Man Qi, Bo Pang, Yu Zhang, Maja-Stina Svanberg Frisinger, Jian Chang, Ashin Vadakke Kulangara, Niklas Hedin, Jiayin Yuan
{"title":"Aminated Microcrystalline Cellulose Aerogel for Efficient CO2 Capture","authors":"Man Qi, Bo Pang, Yu Zhang, Maja-Stina Svanberg Frisinger, Jian Chang, Ashin Vadakke Kulangara, Niklas Hedin, Jiayin Yuan","doi":"10.1002/mame.202400288","DOIUrl":"https://doi.org/10.1002/mame.202400288","url":null,"abstract":"<p>Given the substantial emissions of CO<sub>2</sub> into the atmosphere, there is a critical need for effective CO<sub>2</sub> adsorbents at scale, ideally derived from abundant and sustainable natural resources. In this work, microcrystalline cellulose derived from cotton is used to fabricate cellulose aerogel as porous support via a NaOH/urea-based dissolution and regeneration process, followed by surface modification with a series of amino silane coupling agents to produce aminated cellulose aerogel as CO<sub>2</sub> adsorbent. The as-synthesized optimal adsorbent exhibits a high CO<sub>2</sub> sorption capacity of up to 1.5 and 1.3 mmol g<sup>−1</sup> at 0 °C and 25 °C at 1 bar, respectively. Notably, in-depth analysis shows that the adsorbent achieves an impressive capacity of CO<sub>2</sub> uptake of 0.29 mmol g<sup>−1</sup> at 25 °C at an exceptionally low CO<sub>2</sub> pressure of 0.4 mbar, i.e., under ambient CO<sub>2</sub> pressure. It implies its potential use as adsorbent both for the traditional point-source capture and the direct air capture as an emerging negative emission technology. This study underscores the environmentally friendly, cost-effective, and biosourced attributes of aminated cellulose aerogel as a compelling alternative for carbon capture, contributing to global initiatives combating CO<sub>2</sub> emissions and stressing the key role of sustainable materials in tackling this global environmental challenge.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400288","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404689","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}
{"title":"Phosphorus-Containing Biobased Dimethacrylate Resin with Imine Linkages","authors":"Ozge Ozukanar, Emrah Çakmakçi, Volkan Kumbaraci","doi":"10.1002/mame.202400322","DOIUrl":"https://doi.org/10.1002/mame.202400322","url":null,"abstract":"<p>There is a high demand for highly biobased photocurable coatings for a wide range of applications. In this work, a photocurable coating formulation is developed based on isobornyl acrylate (IBOA) and a biobased polyester diacrylate. Besides, a phosphorous-containing biobased dimethacrylate resin having imine groups (VDDM) is synthesized. Different ratios of VDDM are added to the biobased base formulation. VDDM is characterized by nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies. The formulations are coated on aluminum substrates and photocured under UV light. The biobased contents of the prepared networks are in the range of ≈68–79%. Coatings display a good adhesion on the aluminum substrates. The incorporation of VDDM into the formulations slightly increases the glass transition temperature values. Moreover, VDDM enhances the hydrophilicity of the coatings. VDDM-free coatings are found to be resistant to degradation under basic and acidic media, but the presence of imine bonds in VDDM leads to the partial degradation of the prepared networks under acidic aqueous conditions. Finally, it is demonstrated that the coatings prepared herein are resistant to corrosion. The prepared highly biobased networks in this study have the potential to be used as photocurable coil coatings.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 3","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400322","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602387","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}
{"title":"Interaction Parameters of Some Polymers Used in Nuclear Power Plants with Ionizing Radiation, Produced Secondary Radiations and Radiation Damages","authors":"Ferdi Akman, Hasan Oğul","doi":"10.1002/mame.202400326","DOIUrl":"https://doi.org/10.1002/mame.202400326","url":null,"abstract":"<p>The primary interactions of polypropylene (PP), poly(vinyl acetate) (PVA), ethylene-vinyl acetate (EVA), polyvinyl chloride (PVC), polychloroprene (CR) and polyurethane (PUR) polymers preferred in the nuclear industry with gamma and neutron radiations, secondary radiations formed after neutron interactions and damages given to polymers by these ionizing radiations are investigated. The gamma interaction parameters Were determined in the photon energy range of 0.03-20 MeV using WinXCOM, GEANT4 and FLUKA methods. Also, energy absorption and exposure buildup factors and Kerma parameters are calculated at different photon energies. To investigate the interactions of the studied polymers with neutron, the effective removal cross-section for fast neutrons with theoretical and the partial neutron rates passing through the studied polymer at 4.5 MeV, 100 eV and 0.025 eV energies are determined with simulation codes. The numbers of secondary gamma-rays and neutrons Were obtained with GEANT4. The Total Ionizing Dose and Displacements per Atom parameters are studied with the help of FLUKA simulation. It is observed that the interaction of PVC polymer with gamma radiation and PP polymer with neutron particles is higher than the others. The secondary radiation from PVC and CR is less. The PP, PVA, and EVA exhibit superior resistance to radiation damage.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 3","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400326","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602662","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}
Vincenzo Titone, Luigi Botta, Francesco Paolo La Mantia
{"title":"Mechanical Recycling of New and Challenging Polymer Systems: A Brief Overview","authors":"Vincenzo Titone, Luigi Botta, Francesco Paolo La Mantia","doi":"10.1002/mame.202400275","DOIUrl":"https://doi.org/10.1002/mame.202400275","url":null,"abstract":"<p>Pollution from plastics is a major issue in the current context, prompting the scientific community to focus its efforts on recycling these materials. Mechanical recycling emerges as the most popular due to its practicality and cost-effectiveness. In fact, with the increase in environmental awareness, the adoption of new circular economy models, stricter regulations mandating disposal and recycling, and lower costs compared to other recycling techniques, this type of recycling is taking a predominant role over other method. However, the presence of a variety of products of different polymeric nature, the introduction of new biodegradable products, and the complexity of multilayer packaging combining different polymers, without concrete solutions for recycling create a heterogeneous range of materials that leaks into the environment. The scientific literature is actively addressing these challenges, and this review aims to explore the latest strategies for enhancing the mechanical recycling of new and challenging polymer systems. Specifically, it explores the recycling of materials originally designated for landfill, incineration or composting, focusing on advancements in management of these previously overlooked and problematic system. This underexplored perspective seeks to offer new insights and innovative solutions that can transform polymer waste management and advance more sustainable recycling practices.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400275","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112334","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}
Xiuling Zhang, Kai Yang, Dana Kremenakova, Jiri Militky
{"title":"Side Illumination Behavior and Mechanical Properties of Twisted End-Emitting Polymer Optical Fiber Bundles","authors":"Xiuling Zhang, Kai Yang, Dana Kremenakova, Jiri Militky","doi":"10.1002/mame.202400301","DOIUrl":"https://doi.org/10.1002/mame.202400301","url":null,"abstract":"<p>Polymer optical fibers (POFs), including side-emitting POF (SEPOF) and end-emitting POF (EEPOF) are developed for luminous textiles. The SEPOF is more common for usage but suffers from significant intensity decay, which limits its effective usage length. In contrast, the EEPOF can provide a much more stable side illumination behavior than SEPOF since the light is largely confined within the EEPOF, while its side illumination requires special treatment. In this work, 0.5 mm diameter EEPOFs were firstly assembled into bundles with 10 EEPOFs (B10) and 15 EEPOFs (B15), and then twisted. The morphology, tensile properties, and side illumination behavior of the twisted EEPOF bundles are evaluated. With an increased twisting degree, the initial modulus of twisted sample B10 increases (due to shortening of bundle diameter) from 1.06 to 1.17 GPa while the initial modulus of twisted sample B15 decreases from 1.01 to 0.91 GPa. The increased twisting degree also results in the higher flexibility (indirectly connected with modulus) of the twisted EEPOF bundles. Besides, the increased twisting degree results in a higher side illumination intensity meantime causes a decreased side illumination intensity along the light penetration path. When the twisting degree is low (e.g., 10 T m<sup>−1</sup>), the highest decrease rate of side illumination intensity along the light penetration path is found.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400301","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404792","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}
Damla Aykora, Ayhan Oral, Cemre Aydeğer, Metehan Uzun
{"title":"3D Bioprinting Strategies for Melatonin-Loaded Polymers in Bone Tissue Engineering","authors":"Damla Aykora, Ayhan Oral, Cemre Aydeğer, Metehan Uzun","doi":"10.1002/mame.202400263","DOIUrl":"https://doi.org/10.1002/mame.202400263","url":null,"abstract":"<p>Bone pathologies are still among the most challenging issues for orthopedics. Over the past decade, different methods are developed for bone repair. In addition to advanced surgical and graft techniques, polymer-based biomaterials, bioactive glass, chitosan, hydrogels, nanoparticles, and cell-derived exosomes are used for bone healing strategies. Owing to their variation and promising advantages, most of these methods are not translated into clinical practice. Three dimensonal (3D) bioprinting is an additive manufacturing technique that has become a next-generation biomaterial technique adapted for anatomic modeling, artificial tissue or organs, grafting, and bridging tissues. Polymer-based biomaterials are mostly used for the controlled release of various drugs, therapeutic agents, mesenchymal stem cells, ions, and growth factors. Polymers are now among the most preferable materials for 3D bioprinting. Melatonin is a well-known antioxidant with many osteoinductive properties and is one of the key hormones in the brain–bone axis. 3D bioprinted melatonin-loaded polymers with unique lipophilic, anti-inflammatory, antioxidant, and osteoinductive properties for filling large bone gaps following fractures or congenital bone deformities may be developed in the future. This study summarized the benefits of 3D bioprinted and polymeric materials integrated with melatonin for sustained release in bone regeneration approaches.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"310 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400263","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121394","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}