Macromolecular Materials and Engineering最新文献

{"title":"Happy Birthday, Rolf Mülhaupt!","authors":"Holger Frey","doi":"10.1002/mame.202400254","DOIUrl":"10.1002/mame.202400254","url":null,"abstract":"<p>With this issue of <i>Macromolecular Materials and Engineering</i>, celebrating 25 years of the journal, the editors, friends, and colleagues congratulate Prof. Rolf Mülhaupt on the occasion of his 70th birthday in September 2024. The broad range of topics assembled in this volume reflects the impressive scope of topics, Rolf Mülhaupt's research has addressed. It was briefly sketched how these have evolved from the different stations of his career in a previous editorial in a sister journal.^[<span>¹</span>^]</p><p>The ten years that have passed since this review of Rolf Mülhaupt's outstanding and unconventional scientific career have certainly held unexpected developments. Only a few days after the conference “<i>Makromolekulares Kolloquium”</i> in Freiburg in February 2020 honored him on the occasion of his upcoming formal retirement from his chair position at the Institute of Macromolecular Chemistry, public and academic life were shut down by a pandemic. Also, he was not spared from “remote teaching” in the following. His scientific curiosity and productivity are, of course, uncompromised, as also evidenced by his published oeuvre. Within the breadth of Rolf Mülhaupt's contributions, as an example of his interests in the past decade, it is certainly appropriate to highlight additive manufacturing, reflected in a review article that has been cited already more than 2500 times since its appearance in 2017.^[<span>²</span>^] This topic—in which he was active very early on actually—has moved on to—among others—3D printing of polyolefins with his team. This again takes advantage of his development of “all-polyethylene” composites, which achieve outstanding material performance yet are also well processable, thereby providing improved circularity. Concerning the intensely discussed issue of polymer materials' circularity, the scientific community continues to benefit from Rolf Mülhaupt's to-the-point and sometimes sobering assessments of reality, for instance in “Green Polymer Chemistry and Bio-based Plastics: Dreams and Reality”,^[<span>³</span>^] a highly cited perspective on this research area and its future options.</p><p>Together with all other authors that have contributed to this volume, and with the entire team of the Macromolecular journals, I congratulate Rolf Mülhaupt on the occasion of his anniversary and wish him continued delight in science in the years to come!</p><p></p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400254","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782413","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":"Development of Ductile-Sticky Bone Fillers from Biodegradable Hydrolyzed Wool-Keratin and Silk Fibroin","authors":"Serife Bekar,&nbsp;Tugba Sezgin Arslan,&nbsp;Yavuz Emre Arslan","doi":"10.1002/mame.202400144","DOIUrl":"10.1002/mame.202400144","url":null,"abstract":"<p>In the present study, a method is proposed for preparing novel ductile-sticky materials that can be used as bone void fillers using hydrolyzed wool-keratin (WK) and silk fibroin (SF). This methodology uses citric acid as a cross-linking agent in preparing keratin paste (KP) owing to its non-toxicity and plasticizing properties. The Keratin paste-silk fibroin structure (KPSF) is obtained by adding SF, which possesses biocompatible and superior mechanical properties. Methanol treatment is employed on the KPSF mixture to convert the Silk I structure in the SF to Silk II, resulting in a water-insoluble and tightly packed proteinaceous structure. The physicochemical properties of both bioscaffolds are investigated and discussed in detail by comparison. Based on the findings, the presence of SF in the KPSF structure contributed to properties such as flexibility and porosity. In ovo CAM analysis reveals that both materials exhibit proangiogenic properties and are biocompatible. KP and KPSF bioscaffolds can be converted into ductile-sticky forms by adding water. It believes that these forms can easily apply to bone defect areas, particularly cavitary bone defects. Furthermore, KPSF bioscaffolds, with better mechanical properties, can be considered candidates for use in non-load-bearing bone tissue engineering applications.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400144","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782417","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":"The Design and Fabrication of Engineered Tubular Tissue Constructs Enabled by Electrohydrodynamic Fabrication Techniques: A Review","authors":"Fucheng Zhang,&nbsp;Kai Cao,&nbsp;Ahmadreza Zaeri,&nbsp;Ralf Zgeib,&nbsp;Robert C. Chang","doi":"10.1002/mame.202400095","DOIUrl":"10.1002/mame.202400095","url":null,"abstract":"<p>Electrohydrodynamic processes have emerged as promising methods for fabricating polymetric fiber-based artificial tubular tissues. Existing review articles focus on the biological applications and processing materials associated with electrohydrodynamic processes in artificial tubular constructs, while overlooking the design and fabrication of these constructs. To address this gap, this review article emphasizes the design and fabrication of tubular tissue constructs enabled by employing electrohydrodynamic processes. This article begins by presenting an overview of two electrohydrodynamic processes: solution electrospinning (SE) and melt electrowriting (MEW). It then delves into the control of the fiber diameter enabled by SE and MEW, offering insights into the manipulation of processing parameters to achieve desired fiber diameters. Additionally, the review highlights cutting-edge strategies for electrohydrodynamic processes to create tubular structures with customized microarchitectures. This includes fiber alignment control for SE and pore morphology design for MEW. Moreover, the review covers the creation of customized macroscale tubular geometries through collector geometry design. Lastly, a comprehensive survey is presented for designing multiphasic tubular structures specifically for electrohydrodynamic techniques or in tandem with other techniques. The objective of this review is to offer a thorough understanding of the design considerations and potential applications of tubular structures fabricated by electrohydrodynamic processes.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743906","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":"High Curvature of Polymer-Based Miniaturized Flexible Actuator at Very Low Electric Field","authors":"Simon Toinet,&nbsp;Mohammed Benwadih,&nbsp;Helga Szambolics,&nbsp;Sylvain Minot,&nbsp;Christine Revenant,&nbsp;Marine Bordet,&nbsp;Nellie Della Schiava,&nbsp;Minh-Quyen Le,&nbsp;Pierre-Jean Cottinet","doi":"10.1002/mame.202400132","DOIUrl":"10.1002/mame.202400132","url":null,"abstract":"<p>The use of high electric fields, as well as pre-stressing, are the two main obstacles to the widespread use of poly(vinylidene fluoride (PVDF)-based actuators. In response, a new double-sided multilayer device has been developed which, coupled with a polarization procedure, enables high bending performance at low voltages. The actuator's symmetry allows zero bending at rest, while the high number of layers enables a strong field to be maintained while reducing the applied voltage. X-ray and permittivity studies reveal the ultimate links between the microscopic material displacement and the actuator deflection. These results, coupled with the analytical model developed in this work, demonstrate that the optimization of complex multilayer systems requires a detailed understanding of mechanics, design, and microstructure. Experimental, analytical and finite element results confirm that such a double-sided multilayer actuator is of 50% more efficient than a conventional single-sided actuator, up to 40 V µm⁻¹. These achievements open up new prospects for PVDF-based actuators in application of healthcare, such as arterial navigation.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400132","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743907","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 and Silicon Modified Alginate as an Efficient Flame Retardant for Poly(lactic acid)","authors":"Kata Enikő Decsov,&nbsp;Viktória Cserni,&nbsp;Beáta Szolnoki,&nbsp;Olga Krafcsik,&nbsp;Katalin Bocz","doi":"10.1002/mame.202400194","DOIUrl":"10.1002/mame.202400194","url":null,"abstract":"<p>The introduction of biobased carbon sources in intumescent flame retardant formulations is extensively explored, particularly for biopolymers such as poly(lactic acid) (PLA). In this work, the flame retardant efficiency of alginate, a favorable renewable charring agent candidate, is enhanced by chemical modification with a phosphorus- and silicon-containing compound and subsequent coagulation in the presence of Ca²⁺ ions. The simultaneous presence of P and Si atoms in the reactive compound is shown to be an effective way to avoid thermal stability issues related to the biobased carbohydrate. The newly synthesized PSilAlg additive boosts the flame-retardant effectiveness of ammonium-polyphosphate (APP) at low loadings. Adding 5 wt% PSilAlg to 15 wt% APP containing PLA composite increases the limiting oxygen index from 26.0 to 34.0 vol% and decreases the total heat emission during combustion by 46%, accompanied by significantly (by 66%) reduced smoke production. The outstanding flame retardant performance of PSilAlg is attributed to the high amount and thermally stable carbonaceous fire-protecting layer that forms as a result of the enhanced charring, catalyzed by the high oxidation state P, and the strengthening mechanism of inorganic silicates and calcium salts.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743908","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":"Mechanical, Thermal and Morphological Characterization of Graphene/Al2O3-Reinforced Epoxy Hybrid Nanocomposites","authors":"Shah Md Ashiquzzaman Nipu,&nbsp;Md Zillur Rahman,&nbsp;Shadman Sharar Alam,&nbsp;Barshan Dev","doi":"10.1002/mame.202400180","DOIUrl":"10.1002/mame.202400180","url":null,"abstract":"<p>This work investigates the hybrid nanocomposites manufactured by direct mixing by dispersing varying weight percentages (wt.%) of graphene nanoparticles (GNPs) and Al₂O₃ NPs in epoxy resin. Their properties are then obtained using various mechanical (tensile, flexural, impact, and hardness) and thermal (thermogravimetric) analyses. Furthermore, their microstructure and functional groups are studied by SEM and FTIR, respectively. The hybrid nanocomposite, which contains 1.5 wt.% GNPs and 8.5 wt.% Al₂O₃ NPs, has excellent mechanical properties. Compared to a composite without GNPs, the tensile strength, flexural strength, impact strength, and shore D hardness improve by 95.12, 90.01, 171.43, and 19.75%, respectively. It is also found that hybrid nanocomposite exhibits enhanced thermal stability as GNPs increase, particularly at lower wt.% of Al₂O₃. The SEM of tensile fractured specimens of GNPs/Al₂O₃ epoxy hybrid nanocomposites reveals prominent failure mechanisms, including agglomeration of GNPs and debonding between the GNPs/Al₂O₃ and epoxy. The FTIR spectroscopy analysis reveals distinctive spectral peaks indicating successful incorporation of Al₂O₃ and GNPs into the epoxy-based composite, with observed peaks corresponding to functional groups and bonds characteristic of each component. These findings suggest that the manufactured nanocomposite holds promise as a component in structural applications, particularly in automobiles, aerospace components, and sports equipment.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743909","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":"Quantification of Airborne Concentrations of Nanoscale Dusts by Particle Gravimetry Using Ionic-Liquid Modified Polymeric Electrospun Fibers","authors":"Zeki Tok,&nbsp;Kadriye Ertekin","doi":"10.1002/mame.202470013","DOIUrl":"https://doi.org/10.1002/mame.202470013","url":null,"abstract":"<p><b>Front Cover</b>: In this study, nanoparticle dust filters are prepared by electrospinning method by mixing different polymers or polymer blends with ionic liquids. The performance of the filters is evaluated using a sensitive gravimetric method. CTAB modified chitosan fibers retain 96.37 and 96.64 % of Fe₂O₃ and ZnO nanoparticles. More details can be found in article 2400062 by Zeki Tok and Kadriye Ertekin.\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 7","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202470013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624508","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":"Effect of Fluorine and Copper Ions on Liquid-Solid Triboelectric Nanogenerator","authors":"Mohamed Salman,&nbsp;Vladislav Sorokin,&nbsp;Zifan Li,&nbsp;Yuting Zhu,&nbsp;Wee Chen Gan,&nbsp;Kean Aw","doi":"10.1002/mame.202400159","DOIUrl":"10.1002/mame.202400159","url":null,"abstract":"<p>Liquid-solid triboelectric nanogenerator (LS-TENG) harvests energy efficiently while eliminating wear issues associated with solid-solid TENG. However, the effect of ions or charges in the liquid on output performance needs further examination. In this work, the impact of fluorine and copper ions introduced through deionized water with sodium fluoride (DI-NaF) and deionized water with copper sulfate (DI-CuSO₄) solution on the output voltage, charge and current of a tubular LS-TENG with polytetrafluoroethylene (PTFE) and Nylon as solid materials is examined. The results indicate that fluorine and copper ions have opposite effects on PTFE and Nylon LS-TENG's output. The fluorine (F⁻) ions enhance the triboelectric effect and charge transfer in Nylon LS-TENG, increasing output, while they hinder the charge transfer process in PTFE LS-TENG, consequently decreasing its output. Conversely, the copper (Cu²⁺) ions have a positive effect on the output of PTFE LS-TENG and a detrimental effect on Nylon LS-TENG's output. Moreover, the results indicate that LS TENG's output performance depends on the charges of solid and liquid triboelectric materials. Thus, this study provides insights into material-ion interaction in LS-TENG and underscores the importance of triboelectric material selection for optimizing output performance.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 12","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648240","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":"Electrospun Polymeric Nanofibers for Malaria Control: Advances in Slow-Release Mosquito Repellent Technology","authors":"António Benjamim Mapossa,&nbsp;Afonso Henrique da Silva Júnior,&nbsp;Washington Mhike,&nbsp;Uttandaraman Sundararaj,&nbsp;Carlos Rafael Silva de Oliveira","doi":"10.1002/mame.202400130","DOIUrl":"10.1002/mame.202400130","url":null,"abstract":"<p>The textile industry comprises technologies that transform synthetic or natural fibers into yarn, cloth, and felt for manufacturing clothing, upholstery, and household linens. The major public health threat in tropical and subtropical countries is mosquito-borne malaria. Nowadays, the demand for insect repellent-based textiles is continuously rising, as they are used for protection against diseases transmitted by mosquitoes. The present work reviews studies on the fabrication of insect repellent containing electrospun polymeric nanofibers as principal tools for protecting people against mosquito bites. Electrospinning technology is a remarkably facile technique for fabricating polymeric nanofiber devices. The technique is outlined and elucidated. The performance of insect repellent-based polymeric nanofibers against mosquitoes is carefully reported and comprehensively reviewed in-depth. Furthermore, the progress made on the mathematical modeling of the release rate of repellents through polymeric nanofiber devices is reviewed. The reviewed studies demonstrate that repellents can be released slowly from electrospun nanofibers, increasing the product's protection period against insects. The reviewed works suggest that electrospinning technology has led to an effective and facile methodology for fabricating functional nanofiber textiles with insect repellent. The reviewed studies showed that product-based repellents can be effective not only against malaria but also against other mosquito-borne diseases.</p>","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 8","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202400130","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646290","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":"Masthead: Macromol. Mater. Eng. 7/2024","authors":"","doi":"10.1002/mame.202470014","DOIUrl":"https://doi.org/10.1002/mame.202470014","url":null,"abstract":"","PeriodicalId":18151,"journal":{"name":"Macromolecular Materials and Engineering","volume":"309 7","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202470014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624509","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}