Polymer Bulletin最新文献

{"title":"Synthesis and characterization of ecosorbents and their application in waste cooking oil","authors":"Thalita da Silva Neto,&nbsp;Andressa I. C. da Silva,&nbsp;Francisco M. Monteceli,&nbsp;Rennan F. S. Barbosa,&nbsp;Monique O. T. da Conceição,&nbsp;Simone F. Medeiros,&nbsp;Derval S. Rosa,&nbsp;Daniella R. Mulinari","doi":"10.1007/s00289-024-05547-9","DOIUrl":"10.1007/s00289-024-05547-9","url":null,"abstract":"<div><p>Globally, millions of tons of waste cooking oils (WCO) are generated yearly, and the recovery rate for manufacturing chemicals such as biodiesel is still low. Unfortunately, part of the WCO has been directly discharged into natural environments, underscoring the industrial significance of developing novel technologies for its utilization. As a possible solution to its recovery, this research proposes a new approach for Agave Americana fiber (AF) as a filler in castor oil-based polyurethane, obtaining ecosorbents and evaluating the sorption capacity of WCO. The pristine PU and PU/AFX% ecosorbents (X stands for AF content between 5 and 20 wt%.) were characterized by SEM, OM, density, FTIR, XRD, contact angle (CA), TGA, and water absorption. The inclusion of AF fillers impacted density and influenced morphological, physical–chemical, and thermal properties. Sorption capacity and efficiency were evaluated by varying the contact time and concentration in the oil/water system, and a direct influence of fiber content on sorption capacity was observed. PU/AF20% presented the highest CA and the best sorption capacity and efficiency. Response surface methodology (RSM) evaluated the optimization behavior of sorption capacity (for water and oil), emphasizing a strong dependency on sorption capacity as a function of fiber content variation. Langmuir and Freundlich isotherm models well defined the sorption mechanisms, and the Langmuir model demonstrated the best fit for PU/AF20%, exhibiting a maximum adsorption capacity of 163.93 g g-1. PU/AF20% reusability was evaluated for 21 cycles with a maximum efficiency of 74.2% for oil systems. Thus, AF is an innovative filler in castor oil-based polyurethane for discarded waste cooking oil sorption.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 3","pages":"753 - 775"},"PeriodicalIF":3.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of a novel nitrogen-rich PEG-based hydrogel through click chemistry","authors":"Abolfazl Jahani,&nbsp;Hossein Behniafar","doi":"10.1007/s00289-024-05548-8","DOIUrl":"10.1007/s00289-024-05548-8","url":null,"abstract":"<div><p>A new hydrogel entirely based on PEG was synthesized by azide-alkyne polycycloaddition reaction. For this purpose, PEG was involved in two separate two-step reactions to prepare the corresponding monomers, PEG-derived diazide and PEG-derived triyne. FT-IR spectroscopy and elemental analysis were used to confirm the hydrogel structure. ¹H-NMR and ¹³C-NMR spectroscopies were also used to verify the monomers. The micropores of the freeze-dried network were clearly recognizable in the FE-SEM micrographs. The swellability of the prepared hydrogel was studied by examining the water uptake behavior. Water uptake up to twice the weight of the dry network puts the hydrogel in a privileged position among similar networks. Although the numerous 1,2,3-triazole and 1,3,5-triazine rings in the structure somewhat overshadow the swelling ability of the hydrogel, they greatly increase the nitrogen content of the network (up to 14.5 wt.%). This gave the prepared network the capacity to be used as a propellant. The flammability behavior of the nitrogen-rich network was investigated by performing an ignition test. The ignition of the gel happened within 35 s and was accompanied by a yellow flame and sizzle, and finally an explosion.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 3","pages":"737 - 751"},"PeriodicalIF":3.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress on the ‘all-in-one’ photothermal platform prepared based on polydopamine for tumor synergy therapy","authors":"Li Wang,&nbsp;Lei Zhang","doi":"10.1007/s00289-024-05550-0","DOIUrl":"10.1007/s00289-024-05550-0","url":null,"abstract":"<div><p>Nanomaterials exhibit significant potential in tumor diagnosis and treatment due to their unique physicochemical properties, for example, retention and permeability, environment-responsiveness, and so on. Particularly, the development of photothermal nanomaterials has brought new opportunities for biomedical, especially in the fields of tumor diagnosis and therapy. However, the application of nanomaterials in biomedicine often encounters considerable challenges in terms of biocompatibility, which hinders their clinical translation. However, carriers constructed from biocompatible nanomaterials hold promising prospects. Moreover, the limitations of single-agent tumor therapy highlight the importance of synergy therapy in clinical practice. Among various nanomaterials, polydopamine (PDA), a synthetic analog of natural melanin, not only possesses widespread sources and excellent biocompatibility, but also features biodegradability, easily modifiable surfaces, and superior photothermal conversion performance. Furthermore, the aromatic ring structure on the surface of PDA, containing functional groups such as catechol, amine, and imine, endows PDA with strong adhesive properties, which enables the loading of drug molecules via π-π interactions and achieves photothermal-based tumor synergy therapy. These characteristics give PDA a unique advantage in tumor synergy therapy. Therefore, this review summarizes and reviews various multifunctional drug carriers prepared based on PDA and their applications in tumor photothermal synergy therapy, thus providing insights for the future design of more diverse and intelligent drug delivery systems based on PDA.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"375 - 395"},"PeriodicalIF":3.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced synthesis techniques and tailored properties of carbon nanotube reinforced polymer composites for high-performance applications","authors":"Maziyar Sabet","doi":"10.1007/s00289-024-05549-7","DOIUrl":"10.1007/s00289-024-05549-7","url":null,"abstract":"<div><p>Carbon nanotube (CNT)-reinforced polymer composites are emerging as highly promising materials due to their superior mechanical, thermal, and electrical properties. This review critically examines recent advancements and persistent challenges, focusing on innovative synthesis and functionalization techniques to achieve uniform CNT dispersion within polymer matrices. Advanced characterization methods are discussed to elucidate the structure–property relationships of these composites. Key applications in aerospace, automotive, and healthcare industries are highlighted, demonstrating the potential impact of CNT-polymer composites in these sectors. Despite significant progress, challenges such as scalability and cost-effectiveness remain. Future research directions are proposed to address these issues and fully realize the potential of CNT-polymer composites.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"335 - 373"},"PeriodicalIF":3.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced elasticity and biodegradability of bio-based copolyester elastomer achieved by the crystallization inhibition of isosorbide and flexibility of 1,6-hexanediol","authors":"Lisheng Tang,&nbsp;Xiaoyan He,&nbsp;Ran Huang","doi":"10.1007/s00289-024-05527-z","DOIUrl":"10.1007/s00289-024-05527-z","url":null,"abstract":"<div><p>The stability to against hydrolysis while maintaining excellent elasticity is one of the most challenging problems in the development of biodegradable and environmental-friendly polyester elastomer. While monomers of longer chain can provide higher stability, the high crystallinity and rigidity impair their application in fabricating elastomer. This work reported a star-crosslinked poly(butanediol-hexanediol-isosorbitol-itaconate-sebacate) elastomer synthesized by esterification and thermal curing. With the crystallization inhibition effect of isosorbide as a large and rigid monomer, and the flexibility of 1,6-hexanediol, the rigid (butanediol-itaconate-sebacate) copolyester system is successfully transformed from plastic to be elastomer with lower <i>T</i>_m and <i>T</i>_g, much higher elongation at break, and smaller tensile modulus, and the biodegradability is also improved. The strategy is demonstrated to be efficient and may serve as a potential technique in the future development of biodegradable elastomers.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"649 - 660"},"PeriodicalIF":3.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-healing amine- and carboxy-cured bio-based epoxy vitrimers driven by the disulfide metathesis reaction","authors":"Yamato Ogawa,&nbsp;Kaito Sugane,&nbsp;Mitsuhiro Shibata","doi":"10.1007/s00289-024-05538-w","DOIUrl":"10.1007/s00289-024-05538-w","url":null,"abstract":"<div><p>Mixtures of sorbitol polyglycidyl ether (SPE) and poly(ethylene glycol) diglycidyl ether (PEGDGE) were cured with cystamine (CTA) to produce bio-based amine-cured epoxy resins (SPE-PEGDGE-CTA) containing disulfide bonds. Furthermore, the SPE was cured with 3,3′-dithiodipropionic acid (DTDPA) and citric acid (CA) to produce bio-based carboxy-cured epoxy resins (SPE-DTDPA-CA) containing disulfide bonds. Fourier transform infrared spectroscopy (FT-IR) of the cured products revealed that the epoxy–amine and epoxy–carboxy curing reactions proceeded almost completely. The glass transition temperature (<i>T</i>_g) and mechanical strength of the amine-cured products decreased with increasing PEGDGE fraction, and those of the carboxy-cured products decreased with increasing DTDPA fraction. The amine-cured product with the highest CTA fraction and all carboxy-cured products were healed three times at 80 ℃, whereas none of the corresponding cured products without disulfide bonds exhibited self-healing properties. The maximal healing efficiencies of the amine- and carboxy-cured products in terms of tensile strength were 84% and 91%, respectively.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"625 - 647"},"PeriodicalIF":3.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermoanalytical studies on cross-linked polyurethane networks: effect of polyol molecular weight and structure of cyclodextrins","authors":"Suzana M. Cakić,&nbsp;Ivan S. Ristić,&nbsp;Berta B. Holló,&nbsp;Vesna Nikolić,&nbsp;Nada Č. Nikolić,&nbsp;Srđan Rakić,&nbsp;Snežana Ilić-Stojanović","doi":"10.1007/s00289-024-05544-y","DOIUrl":"10.1007/s00289-024-05544-y","url":null,"abstract":"<div><p>The applications of polyurethanes (PURs) have increased in recent years. They can have pharmaceutical applications as potential drug delivery carriers, due to their properties which can be adjusted according to their chemical structure. In this paper, the synthesis of PURs and their characterization were examined. Two series of PURs were synthesized by using <i>β-</i>cyclodextrin (<i>β</i>CD) or hydroxypropyl-<i>β</i>-cyclodextrin as cross-linker of alicyclic isophorone diisocyanate and three glycols: polyethylene glycols (PEG2000 and PEG6000) and poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (BLOCK 1100). The NCO/OH molar ratio was 3.3, 4.3 and 6.3, and thermal properties of obtained PURs were investigated by thermogravimetry analysis and differential scanning calorimetry. The degree of crystallinity of polyol in soft segment of PURs was examined by using the X-ray diffraction (XRD), the morphology of the PURs was visualized by scanning electron microscopy (SEM), and the structural modifications was analyzed by using FTIR spectroscopy. The XRD patterns revealed that the crystallinity decreased mainly due to the cross-linking process, and FTIR assignments confirmed the formation of urethane linkages. The thermal stabilities of two series of PURs have been correlated with their soft segment molecular weights, structure of cross-linker and NCO/OH molar ratio. The increase in isocyanate ratio increased the cross-linking and thermal stability of the PURs network. The increase in melting point is attributed to an increase in the size of the crystallites or an increase in complete crystalline phase due to the greater phase separation of the hard and soft segments. The results of the SEM micrographs showed that <i>βCD</i> contributes to the microphase separation. By using a various cyclodextrins as a cross-linker, the chain length of the soft segments and NCO/OH molar ratio, the stated properties of PURs have been changed.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"607 - 623"},"PeriodicalIF":3.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of new Cr(III) complex with a tetradentate Schiff base ligand for polymer composite application","authors":"Hanar Q. Hassan,&nbsp;Karzan A. Abdalkarim,&nbsp;Sewara J. Mohammed,&nbsp;Dyari M. Mamand,&nbsp;Sarkawt A. Hussen,&nbsp;Diary I. Tofiq,&nbsp;Nian N. Mohammad,&nbsp;Samir M. Hamad,&nbsp;Shujahadeen B. Aziz","doi":"10.1007/s00289-024-05534-0","DOIUrl":"10.1007/s00289-024-05534-0","url":null,"abstract":"<div><p>In this investigation, we successfully synthesized an asymmetrical N, N, N, O tetradentate Schiff base ligand (L) through the condensation reaction between 1-phenylbutane-1,3-dione and 2,6-diaminopyridine. Subsequently, this ligand was used to form a new Cr(III) complex (LMC) by reacting with Cr(NO₃)₃·9H₂O. The synthesis of the ligand and the complex was confirmed using various techniques, including elemental analysis, magnetic susceptibility, molar conductance, FTIR, UV–visible, ¹H-NMR, mass spectrometry, and thermogravimetric analysis. The FTIR spectra indicated that L acted as a dibasic tetradentate ligand, coordinating with the metal ion through multiple binding sites: the oxygen atom of the carbonyl group, the nitrogen atoms of the imine and amine groups, and the pyridine nitrogen atom. The molar conductance values suggested that the LMC possessed electrolytic properties. Analysis of electronic spectra and magnetic moments further supported the assignment of an octahedral geometry to the LMC complex. Furthermore, the complex was integrated into a chitosan (Cs) matrix using an acidic solution method, resulting in the formation of polymer composites denoted as Cs/LMC. These composites exhibit enhanced optical properties. Specifically, the optical bandgap of the composite decreased from 5.2 to 1.85 eV, while the refractive index increased from 1.29 to 1.341. This innovative approach holds promise for enhancing the optical characteristics of chitosan-based materials, rendering them suitable for various applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"579 - 605"},"PeriodicalIF":3.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical evaluation of wear parameters using meta-models","authors":"Samir El Masri,&nbsp;Felix Hartung,&nbsp;Thomas Berger,&nbsp;Michael Kaliske","doi":"10.1007/s00289-024-05537-x","DOIUrl":"10.1007/s00289-024-05537-x","url":null,"abstract":"<div><p>Wear parameters identified by linear friction tester (LFT) experiments overestimate the wear mass loss when applied on a laboratory abrasion &amp; skid tester 100 (LAT100) simulation. On the other hand, the identification of wear parameters directly from the LAT100 experiment can be challenging since variables such as the contact area and the slip velocity are not measured experimentally and need to be assumed. To improve the identification process, numerical calibration is used as a more suitable approach. This approach relies on meta-models as a target function for minimization. The meta-models are generated using a sample of wear parameters applied to an LAT100 finite element modeling (FEM) to calculate the corresponding wear mass.. In this model, a transport velocity is defined for the rolling simulation, and an arbitrary <span>lagrangian–eulerian</span> (ALE) adaptive meshing approach is adopted for the wear modeling. For the wear model, a combination of <span>archard</span>’s wear model and <span>schallamach</span>’s abrasion law is used. This model contains a pair of wear parameters to be identified. The ALE adaptive meshing technique moves the nodes independently of the material. Since the mesh topology remains the same, failure of the simulation occurs if the wear volume loss exceeds that of the element. Meta-models are created to extend wear modeling beyond this failure. Once the meta-models are created, they are used as a target function for the minimization algorithm. The minimization algorithm aims to find the optimal wear parameters by minimizing the difference between experimentally observed and numerically produced wear mass loss. The minimization algorithm inputs a set of wear parameters into the meta-models which in turn yield a prediction of the wear mass loss. The process is carried out until an optimum parameter set is identified. Such an approach has a lower accuracy if the parameters are identified directly from the experiment using assumptions regarding the contact shear stress and the sliding velocity. Nonetheless, the main advantage of parameters identified using the meta-model approach is the usability of these parameters in an LAT100 model.\u0000</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"563 - 578"},"PeriodicalIF":3.1,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-024-05537-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Load bearing investigations on silane coupling grafted PET core and pineapple leaf fibre-vinyl ester sandwich composite building material","authors":"K. Shunmugapriya,&nbsp;Sumanth Ratna. Kandavalli,&nbsp;S. Rajeshkannan,&nbsp;V. R. Lenin","doi":"10.1007/s00289-024-05532-2","DOIUrl":"10.1007/s00289-024-05532-2","url":null,"abstract":"<div><p>This study investigates the impact of silane coupling grafting on the mechanical properties of load-bearing applications in a novel composite material composed of recycled PET bottle waste, thick core, and pineapple leaf fibre reinforced with vinyl ester. A comprehensive array of tests, including tensile, flexural, impact, interlaminar shear strength, flammability, and thermal conductivity tests, was conducted on both untreated and silane-treated specimens. Tensile tests revealed consistent strength improvements post-silane treatment (10.8%–19.4%), attributed to enhanced interfacial bonding. Flexural strength tests demonstrated notable gains (13.5%–20.8%), emphasizing the role of the PET core and pineapple fibre, with silane treatment optimizing adhesion. Impact test results displayed varied responses, suggesting complex interactions between components. Interlaminar shear strength consistently improved with silane treatment (9.68%–36.19%), showcasing collaborative effects. Flammability tests confirmed fire resistance in both composites, with nuanced thermal conductivity changes post-treatment (6.4%–18.6%). The study underscores the intricate interplay between the PET core, pineapple fibre, and silane treatment, collectively contributing to enhanced mechanical performance, fire resistance, and thermal behaviour in the composite materials. The integrated findings emphasize the intricate interplay between the recycled PET core, pineapple leaf fibre, and the effects of silane treatment, showcasing enhanced mechanical performance and potential suitability for load-bearing applications in the investigated composite material.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 2","pages":"543 - 561"},"PeriodicalIF":3.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}