Polymer Bulletin最新文献

{"title":"Investigation of water-based interior wall coatings containing epoxy resin quaternary ammonium salts with antibacterial properties","authors":"Yan Xu","doi":"10.1007/s00289-024-05584-4","DOIUrl":"10.1007/s00289-024-05584-4","url":null,"abstract":"<div><p>The objective of this study was to develop water-based interior wall coatings with antimicrobial properties. Epoxy resin quaternary ammonium salts were synthesized and characterized using FTIR and ¹H NMR spectroscopy. Various compositions of water-based interior coating materials were prepared. The antimicrobial activity of the materials was determined using the inhibition zone method. Thermal stability of samples was evaluated through TGA; while, contact angles were measured to assess hydrophobicity. The resulting water-based interior coating materials exhibited exceptional antimicrobial, thermal and mechanical properties, making them suitable as antibacterial top coatings in diverse industries.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 4","pages":"1265 - 1279"},"PeriodicalIF":3.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362159","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":"Dielectric properties of chitosan-based ZnO nanocomposites for high-frequency electronic devices","authors":"Ibrahim Erol,&nbsp;Adem Tataroğlu,&nbsp;Hasan Artun,&nbsp;Gofur Khamidov,&nbsp;Ayşegül Dere,&nbsp;Fahrettin Yakuphanoğlu","doi":"10.1007/s00289-024-05581-7","DOIUrl":"10.1007/s00289-024-05581-7","url":null,"abstract":"<div><p>In this study, first the blend of poly(2-(3,5-dichloroanilino)-2-oxoethyl 2-methylprop-2-enoate) (PDCOEMA) synthetic polymer with chitosan (CS) was prepared by the hydrothermal method. Then, PDCOEMA-CS/ZnO nanocomposites were prepared by adding different concentrations ZnO nanoparticles with weight ratios (3%, 5% and 7% wt) produced by biosynthesis from <i>Prunus spinosa</i> extract. Impedance and dielectric characteristics of PDCOEMA-CS/ZnO nanocomposites were studied by using the impedance spectroscopy method. All measurements were carried out at various frequencies between 500 Hz and 1 MHz and at room temperature. For all nanocomposites, the dielectric constant (ε′), dielectric loss (ε″), and loss tangent (tanδ) were found to have a frequency-dependent character. As the frequency increases, the dielectric constant decreases while the alternating current (ac) conductivity increases. The ε′, ε″ and AC conductivity values are decreased when the ZnO doping concentration is increased. Additionally, the impedance (Z) decreases with increase in both frequency and doping concentration. The frequency response of electric, dielectric and impedance characteristics of PDCOEMA-CS/ZnO nanocomposites suggest that they are a potential material for high-frequency electronic devices such as MOS capacitors and MOSFET transistors.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 4","pages":"1223 - 1238"},"PeriodicalIF":3.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362105","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 characterisation of biodegradable polyurethane/CuS nanocomposites for agricultural application","authors":"S. Poornima,&nbsp;V. L. Yashaswini,&nbsp;S. Roopa,&nbsp;B. S. Madhukar,&nbsp;M. A. Sangamesha","doi":"10.1007/s00289-024-05569-3","DOIUrl":"10.1007/s00289-024-05569-3","url":null,"abstract":"<div><p>Polyurethane (PU) is one of the important industrial polymers. PU and its composites can be used in different applications. This paper examines the potential of PU/copper sulphide (CuS) nanocomposites (NCs) for application as green mulching films in agriculture. Castor oil-based PU NCs were fabricated by varying the CuS concentration viz., 0.0%, 1.0%, 2.0%, 4.0% and 8.0%. The NCs were characterised for microcrystalline nature by X-ray diffraction, Fourier transform infrared spectroscopy used for examining spectral characteristics, morphological assessment by scanning electron microscopy and elemental analysis by energy-dispersive x-ray Spectroscopy. The NCs were characterised for tensile properties, which revealed that a 4% PU/CuS nanocomposite (NC) exhibited high elongation at break of 399.72 MPa, suitable for mulching applications. Thermogravimetric analysis was used to examine the thermal stability and degradation. The chemical resistance and water absorption were evaluated in various atmosphere. The biodegradability was investigated through the soil and cow dung burial test. The pot study experiment is conducted to investigate the effect of NC on growth rate of the plants, which showed that beans treated with PU/CuS NC showed a 43% increase in height within 7 days and a 32% increase within 35 days, with an increase of about 62.5% in leaf width within 7 days and continues to increase until the 35th day and shows considerably more branches and stem diameter than the control. This work concludes that PU/CuS NCs have high potential as green mulching films for application in agriculture.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 4","pages":"1107 - 1130"},"PeriodicalIF":3.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361867","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":"Impact of the method of Mg2+ cation introducing into the titanium post-metallocene catalytic system on their activity","authors":"Vladislav A. Tuskaev,&nbsp;Dmitry A. Kurmaev,&nbsp;Svetlana Ch. Gagieva,&nbsp;Evgenii K. Golubev,&nbsp;Mikhail I. Buzin,&nbsp;Victor N. Khrustalev,&nbsp;Svetlana A. Aksenova-Soloveva,&nbsp;Alexandra V. Gracheva,&nbsp;Boris M. Bulychev","doi":"10.1007/s00289-024-05558-6","DOIUrl":"10.1007/s00289-024-05558-6","url":null,"abstract":"<div><p>This work shows for the first time the influence of the method of introducing Mg compounds into a post-metallocene-type catalytic system on its catalytical performance and the properties of the resulting polymer, and it is concluded that the real catalytic center is heterometallic Ti/Mg complexes. Three different approaches were compared to introducing Mg compounds into catalytic systems containing a titanium(IV) dichloride complex with an (O^O)²⁻ type ligand and an organoaluminium compound—the use of Al/Mg co-catalysts, the immobilization of a Ti complex on the surface of anhydrous MgCl₂ and in situ preparation of heterometallic Ti/Mg complexes. All three approaches lead to the production of ultra-high molecular weight polyethylene, but systems with externally introduced magnesium chloride showed the lowest productivity. On the contrary, heterometallic Ti/Mg precatalysts are successfully activated by conventional organoaluminium compounds (Et₃Al, ⁱBu₃Al, MAO) and are superior to the reference catalytic system both in activity and in polymer molecular weights. Their use makes it possible to reduce the Ti/Mg molar ratio in catalytic systems from 1:300 to 1:1–2. The resulting UHMWPE samples are suitable for solvent-free solid-phase processing into high-strength, high-modulus film threads.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 4","pages":"1131 - 1147"},"PeriodicalIF":3.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361865","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":"Bio-based food packaging a sustainable alternative: availability, viability and legislation","authors":"Shubhanshi Sharma,&nbsp;Shubham Sharma,&nbsp;Tanvi Vats","doi":"10.1007/s00289-024-05554-w","DOIUrl":"10.1007/s00289-024-05554-w","url":null,"abstract":"<div><p>With the ever so expanding food processing sector, the demands for food packaging materials have also been increasing. The most commonly used material in this area is obviously plastic as it is widely available, easy to process and economical. The environmental issues caused by plastics have led the research in the direction of suitable alternates. Biopolymers can be excellent alternatives to conventional polymers due to their biodegradability and bioavailability. The biopolymers are potentially multi-dimensional materials not just from the perspective of replacing conventional polymers in food packaging, but also in the ways we can incorporate biopolymers by understanding their characteristics and properties in the form of additives, edible film coatings, etc. Biopolymers can potentially be instrumental for food waste valorization. The article reviews the potential application of biopolymers in the food packaging industry from all the aspects. Starting from source of the materials, to the physical, mechanical and barrier properties, challenges in the processing as well as usage, challenges and future prospects, all the areas have been discussed. The article also discusses the legislations of major economies with regard to the application of biopolymers in food packaging.</p><h3>Graphical abstract</h3><p>Schematic overview of different biopolymers</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 4","pages":"1017 - 1056"},"PeriodicalIF":3.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362005","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":"Development of the effective tin(II)-macroinitiators from the ring-opening polymerization of cyclic esters for utilizing in the production of the ultra-high molecular weight polyester","authors":"Wanich Limwanich,&nbsp;Sawarot Phetsuk,&nbsp;Manita Dumklang,&nbsp;Nathaporn Cheechana,&nbsp;Puttinan Meepowpan,&nbsp;Winita Punyodom","doi":"10.1007/s00289-024-05563-9","DOIUrl":"10.1007/s00289-024-05563-9","url":null,"abstract":"<div><p>Development of the effective tin(II)-macroinitiators (SnLL and SnCL) was successfully carried out via the ring-opening polymerization (ROP) of <span>l</span>-lactide (LL) and <i>ε-</i>caprolactone (<i>ε</i>-CL) with 4.0 and 8.0 mol% of liquid tin(II) <i>n</i>-butoxide (Sn(O<i>n</i>Bu)₂) initiator (SnLL4, SnLL8, SnCL4, and SnCL8) at a temperature of 130 °C. The synthesized tin(II)-macroinitiators were completely characterized by various techniques. The performance of the solid SnCL macroinitiators in the ROP of <i>ε</i>-CL was reported for the first time by using the non-isothermal differential scanning calorimetry (DSC) technique. Non-isothermal kinetics results revealed that the rate of <i>ε</i>-CL polymerization depended on the amount of Sn–O active center presented in macroinitiators. The activation energy (<i>E</i>_<i>a</i>) of the ROP of <i>ε</i>-CL with the prepared SnCL8 was lower than SnCL4. Our synthesized SnLL4 was better than other tin(II)-macroinitiators for small scale production of an ultra-high molecular weight poly(<i>ε</i>-caprolactone) (PCL) with number average molecular weight (<i>M</i>_n) up to 6.3 × 10⁵ g/mol and also showed a higher effectiveness than the conventional initiating system of tin(II) octoate (Sn(Oct)₂) and Sn(Oct)₂/<i>n</i>-butanol (<i>n</i>BuOH) under a similar synthesis temperature and time. The mechanism of the ROP of <i>ε</i>-CL with our macroinitiators was also studied and proposed through the classic coordination–insertion mechanism. The tin(II)-macroinitiators could be considered as the powerful initiator for the manufacturing of the biodegradable polymers applied for the ecofriendly materials that could support the sustainable management of the plastic waste in the future.</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 4","pages":"1085 - 1105"},"PeriodicalIF":3.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362006","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":"Oil-based efficient poly(esteramide) coatings- a review","authors":"Hetvi S Tambawala,&nbsp;Darshan Mahajan,&nbsp;Prachi Kolhatkar,&nbsp;Rakesh Bind,&nbsp;Aarti P. More","doi":"10.1007/s00289-024-05571-9","DOIUrl":"10.1007/s00289-024-05571-9","url":null,"abstract":"<div><p>Poly(ester amide) (PEA) has been profoundly used in the coating industry owing to its chemical resistance, water vapor resistance, and excellent physio-mechanical properties. The core source of synthesizing PEA coatings is via the conversion of oils (edible and non-edible) to fatty amide followed by reactions with dicarboxylic acids. The resultant coatings show enhanced drying time, improved crystallization, and low water absorption due to integration with dual properties of both amide and ester groups. Furthermore, plain PEA based coatings are also modified with various nanofillers, reactants, and other metal composites to enhance their chemical and mechanical properties. The present paper provides a comprehensive review of the synthesis pathways of PEA coatings across a broad spectrum of applications. We have also elucidated the newly developed synthesis pathways for waterborne and biodegradable PEA-based coatings. In addition to describing novel UV-curing applications, the critical properties highlighted in various application areas include anti-corrosivity, chemical resistance, anti-microbial, and flame retardancy.</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":"711 - 736"},"PeriodicalIF":3.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362007","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":"Transformation of truck tire rubber waste into thermoplastic vulcanizates: influence of vulcanization systems and compatibilizers in copolyester blends","authors":"Sitisaiyidah Saiwari,&nbsp;Boripat Sripornsawat,&nbsp;Charoen Nakason","doi":"10.1007/s00289-024-05572-8","DOIUrl":"10.1007/s00289-024-05572-8","url":null,"abstract":"<div><p>The primary aim of this research was to repurpose truck tire rubber waste (TTRW) to address significant environmental challenges associated with tire disposal. This was achieved by devulcanizing the waste rubber and transforming it into versatile thermoplastic vulcanizates (TPVs), offering a novel approach to waste valorization. Devulcanized rubber (DR) was first prepared using a mechano-chemical process to break sulfur crosslinks, restoring the rubber’s plasticity. Blends of dynamically cured DR and thermoplastic polyester elastomer (COPE) were then developed. Through experimental investigation, phenolic resin at 16 phr was identified as the optimal curing agent, providing the best curing conditions. This formulation resulted in the highest shear viscosity, facilitating the breakup of the vulcanizing DR phase into smaller domains, approximately 0.77 μm in size, which enhanced interfacial adhesion and mechanical properties such as tensile strength and durability. To further improve the DR/COPE blend, maleic anhydride (MA) was incorporated as a compatibilizer at an optimal loading of 5 wt% relative to DR. MA initially formed hydrogen bonds with COPE and subsequently reacted with the diene rubber in DR via free radical and Diels–Alder mechanisms. These interactions improved interfacial adhesion and promoted finer dispersion of DR domains within the COPE matrix, leading to a refined phase morphology with the smallest domain size of 0.29 μm. The result was enhanced rheological and mechanical properties, including increased tensile strength to 9.3 MPa, elongation at break of 135%, hardness (Shore A) of 75, along with greater elasticity and improved solvent resistance. This study demonstrates the potential of using devulcanized truck tire rubber waste to develop high-performance, sustainable materials for various technological applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 3","pages":"971 - 997"},"PeriodicalIF":3.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362085","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":"Synergistic incorporation of calcium and zinc fertilizers in superabsorbent polymers","authors":"Ogeday Rodop,&nbsp;Yusuf Ziya Menceloğlu","doi":"10.1007/s00289-024-05564-8","DOIUrl":"10.1007/s00289-024-05564-8","url":null,"abstract":"<div><p>Mineral fertilizers and water are essential for food production, and their sustained delivery is imperative to maximize crop yields. During heavy rainfalls, fertilizers can leach into the environment. During drought, fertilizers cannot dissolve in the soil. Superabsorbent polymers (SAP) can improve soil water retention capacity, by absorbing water during rainfall and releasing it during dry periods. In this study, we have integrated varying levels of calcium nitrate and zinc sulfate in an SAP to achieve fertilizer-SAP composites. Fertilizer-SAP composites can both help alleviate fertilizer leaching during heavy rainfall and facilitate their dissolution during dry periods, thank to moisture they absorb from the soil. SAP composites can also slow down the release of nutrients and keep them closer to the root area, for optimum plant uptake. Furthermore, we have observed a synergistic effect of nutrient incorporation in SAP, manifested by the enhanced water uptake of composites compared to pure SAP. For instance, SAP composites with 17 wt% zinc sulfate and calcium nitrate achieved superior water absorptions of 1462 and 1626 g/g, respectively. In comparison, pure SAP in this study reached approximately 800 g/g, and most commercial SAPs have water absorption capacities of 500 g/g. Suggested SAP application is often reported as 15–45 kg per hectare, in the literature. In comparison, the recommended zinc and calcium doses are as low as 3–5 kg/ha. Therefore, by a single fertilizer-SAP application, farmers can cover both the SAP and zinc, or calcium demands of their fields.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 3","pages":"943 - 969"},"PeriodicalIF":3.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362083","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":"Dielectric and energy storage properties of the g-C3N4/PVDF nanocomposite thick film","authors":"Ting Tian,&nbsp;Hongwei Lu,&nbsp;Shijia Yang,&nbsp;Jinqi Qin,&nbsp;Weitao Su","doi":"10.1007/s00289-024-05566-6","DOIUrl":"10.1007/s00289-024-05566-6","url":null,"abstract":"<div><p>The minimal difference between the dielectric constant of graphite-phase g-C₃N₄ and that of PVDF significantly reduces the local electric field distortion, thus improving the breakdown strength and energy storage density of the composites. In addition, the low conductivity (10^–12~−13 S/m) and wide band gap (2.7 eV) of g-C₃N₄ nanosheets are favorable for improving the breakdown strength of PVDF composites. In this study, g-C₃N₄/PVDF dielectric films were prepared by solution casting method using g-C₃N₄ as inorganic filler; the effects of g-C₃N₄ concentration on dielectric and energy storage properties of the composite films were discussed. The results show that the 3wt% g-C₃N₄ /PVDF composite film has the highest dielectric constant of 13 at room temperature because of its good dispersion and strong interfacial polarization. Additionally, the maximum discharge energy density is 6.85 J/cm³, which is twice that of PVDF (3.51 J/cm³) due to the formation of charge traps and enhanced mechanical properties. In this paper, a simple, low-cost and environmentally friendly method is proposed to prepare flexible composite dielectric films with high energy storage density using 2D filler g-C₃N₄.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 3","pages":"999 - 1016"},"PeriodicalIF":3.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362084","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}