RSC Applied Polymers最新文献

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Impact of π-conjugation and fluorination on the sensing performance of 1,6-pyrene covalent triazine frameworks π共轭和氟化对1,6-芘共价三嗪骨架传感性能的影响
RSC Applied Polymers Pub Date : 2026-02-25 DOI: 10.1039/D5LP00381D
M. Carmen Borrallo-Aniceto, Beatriz Fuerte-Díez, Laura González-Aguilera, M. Luisa Ferrer, M. Pilar Lillo, Andreas Mavrandonakis, Urbano Díaz, Eva M. Maya and Marta Iglesias
{"title":"Impact of π-conjugation and fluorination on the sensing performance of 1,6-pyrene covalent triazine frameworks","authors":"M. Carmen Borrallo-Aniceto, Beatriz Fuerte-Díez, Laura González-Aguilera, M. Luisa Ferrer, M. Pilar Lillo, Andreas Mavrandonakis, Urbano Díaz, Eva M. Maya and Marta Iglesias","doi":"10.1039/D5LP00381D","DOIUrl":"https://doi.org/10.1039/D5LP00381D","url":null,"abstract":"<p >In this work, we describe the synthesis of a series covalent triazine frameworks (CTFs) based on 1,6-substituted-pyrene-derivatives, in which triazine units (electron acceptor groups) are either directly bonded to the pyrene core (1,6-Pyr-CTF) or connected <em>via</em> aryl or fluoroaryl-π-linkers (1,6-DPhPyr-CTF and 1,6-2FDPhPyr-CTF). These CTFs were readily synthesized through cyclotrimerization of the corresponding dinitriles, yielding thermally stable products with favorable photophysical properties and fluorescence emission maxima at 401 nm (1,6-Pyr-CTF), 428 nm (1,6-DPhPyr-CTF) and 433 nm (1,6-2FDPhPyr-CTF). These characteristics make them promising candidates for fluorescent sensing of nitroaromatic compounds. Among the synthesized frameworks, the fluorinated diphenylpyrene-triazine (1,6-2FDPhPyr-CTF) exhibits the highest selectivity and sensitivity toward nitro compounds, in EtOH/H<small><sub>2</sub></small>O dispersions, with <em>K</em><small><sub>SV</sub></small> = 4.35 × 10<small><sup>4</sup></small> M<small><sup>−1</sup></small> (LOD = 0.15 ppm) for picric acid (TNP) or 3.39 × 10<small><sup>4</sup></small> M<small><sup>−1</sup></small> (LOD = 0.11 ppm) for (<em>p</em>-nitroaniline, 4-NA). These results demonstrate the beneficial effect of extended π-conjugation and fluorine incorporation on the sensing performance of CTFs.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 839-850"},"PeriodicalIF":0.0,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00381d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unlocking high-performance capacitive energy storage: advances in polymer nanocomposite dielectrics 解锁高性能电容储能:聚合物纳米复合电介质的进展
RSC Applied Polymers Pub Date : 2026-02-23 DOI: 10.1039/D4LP00357H
Tanuj Kumar, Rahul Singhal, Ramesh Kumar, Arunima Verma, Priya Jasrotia, Arun Kumar, Rajeev Gupta, Ajay Singh Verma, Priyankaben Trivedi and Manju Bala
{"title":"Unlocking high-performance capacitive energy storage: advances in polymer nanocomposite dielectrics","authors":"Tanuj Kumar, Rahul Singhal, Ramesh Kumar, Arunima Verma, Priya Jasrotia, Arun Kumar, Rajeev Gupta, Ajay Singh Verma, Priyankaben Trivedi and Manju Bala","doi":"10.1039/D4LP00357H","DOIUrl":"https://doi.org/10.1039/D4LP00357H","url":null,"abstract":"<p >The dielectric properties of polymers at extreme temperatures for energy storage require significant improvement, despite their superior processability, strong dielectric breakdown strength, and great mechanical qualities. By combining the best features of polymers and ceramics, scientists have created polymer nanocomposites with enhanced dielectric properties, making them ideal for use in various applications, including aerospace, oil and gas exploration, and hybrid electric cars. Interfacial design, microstructural engineering, and new high-dielectric filler materials are some of the important tactics and analytical models that have been developed to significantly increase the energy density of composite dielectrics. Novel designs have resulted from combining analytical models with machine learning approaches. Also covered in this study is the effect of a high-temperature implanted nanofiller on energy density in a polymer matrix. Lastly, this review summarizes the many types of dielectrics and their respective benefits, advancements, drawbacks, and limits when subjected to wide temperature ranges. An overview of the current areas where there is increasing production of energy storage devices in electric vehicles, pulsed warfare systems, and power electronics is provided to illustrate the practical uses of polymer nanocomposite dielectrics. We conclude by discussing the difficulties and potential benefits of polymer nanocomposite dielectrics in unusual scenarios.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 502-523"},"PeriodicalIF":0.0,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d4lp00357h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polyhydroxyalkanoate block polymer adhesives derived from long-chain aliphatic β-lactones and lactide 聚羟基烷酸酯嵌段聚合物粘合剂,由长链脂肪族β-内酯和丙交酯衍生而来
RSC Applied Polymers Pub Date : 2026-02-17 DOI: 10.1039/D5LP00389J
Peter V. Kelly, Alison Block, Brenden D. Hoehn, Pathikrit Saha, Christopher J. Ellison and Marc A. Hillmyer
{"title":"Polyhydroxyalkanoate block polymer adhesives derived from long-chain aliphatic β-lactones and lactide","authors":"Peter V. Kelly, Alison Block, Brenden D. Hoehn, Pathikrit Saha, Christopher J. Ellison and Marc A. Hillmyer","doi":"10.1039/D5LP00389J","DOIUrl":"https://doi.org/10.1039/D5LP00389J","url":null,"abstract":"<p >Pressure sensitive adhesives (PSAs) are contained in numerous packaging products as labels, tapes, and sealants. Consequently, they are a common contaminant that complicates repulping during paper recycling and industrial composting. Degradable PSAs are an attractive alternative where complete removal or separation is not practical. In this work, we employed epoxide carbonylation to produce β-tridecalactone to prepare poly(β-tridecalactone) (PTDL) through ring-opening transesterification polymerization (ROTEP). We explored the synthetic challenges in producing high molar mass (&gt;20 kg mol<small><sup>−1</sup></small>) PTDL. These include dehydration of the propagating chain end and adventitious initiation from impurities in the monomer. The utility of PTDL PSAs containing a rubbery midblock with semicrystalline poly(<small>L</small>-lactide) (PLLA) end blocks was probed as a function of composition, molar mass, and processing conditions. The largest PLLA volume fraction (<em>f</em><small><sub>PLLA</sub></small> = 0.31–0.35) triblock polymers exhibit commercially competitive peel strengths (5.5 ± 0.9 N cm<small><sup>−1</sup></small>) and loop tack (8.5 ± 0.9 N cm<small><sup>−1</sup></small>) values, with properties similar to office and duct tapes. This work informs how long aliphatic chain containing β-lactones can be effectively harnessed to produce high performance PSAs with the end goal of fully biodegradable adhesives.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 796-806"},"PeriodicalIF":0.0,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00389j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of gallic acid crosslinked chitosan/poly(1-vinylpyrrolidone-co-vinyl acetate) antioxidant films for green chilli packaging 没食子酸交联壳聚糖/聚(1-乙烯基吡咯烷酮-醋酸乙烯酯)抗氧化膜的制备
RSC Applied Polymers Pub Date : 2026-02-10 DOI: 10.1039/D5LP00339C
Bhagyalakshmi A. Sheeparamatti, Priyanka Baburao, Priyadarshini, Shiddalingesh G. Havanur, Ravindra B. Chougale, Manjushree Nagaraj Gunaki, Ajitkumar Appayya Hunashyal, Saraswati P. Masti, Nagarjuna Prakash Dalbanjan and S. K. Praveen Kumar
{"title":"Fabrication of gallic acid crosslinked chitosan/poly(1-vinylpyrrolidone-co-vinyl acetate) antioxidant films for green chilli packaging","authors":"Bhagyalakshmi A. Sheeparamatti, Priyanka Baburao, Priyadarshini, Shiddalingesh G. Havanur, Ravindra B. Chougale, Manjushree Nagaraj Gunaki, Ajitkumar Appayya Hunashyal, Saraswati P. Masti, Nagarjuna Prakash Dalbanjan and S. K. Praveen Kumar","doi":"10.1039/D5LP00339C","DOIUrl":"https://doi.org/10.1039/D5LP00339C","url":null,"abstract":"<p >In this study, chitosan (CS)/poly(1-vinylpyrrolidone-<em>co</em>-vinyl acetate) (PVP-<em>co</em>-VAc) films were fabricated by incorporating different weight fractions of gallic acid (GA), abbreviated as CPG, using the solvent casting method. The prepared films were investigated for their physicochemical properties. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) micrographs revealed the effective interaction between the added GA and the CS/poly(1-vinylpyrrolidone-<em>co</em>-vinyl acetate) polymer matrix. The resultant films demonstrated good barrier properties against water and oxygen, which were further supported by water contact angle (WCA) findings. Also, the films exhibited excellent mechanical properties with a tensile strength (TS) of 54.71 ± 0.62 MPa, which is more substantial than those of traditional polythene plastics (10–16 MPa). Compared with the CP film, the CPG-IV film with the highest weight percentage of GA exhibited a strong DPPH radical scavenging activity of 77.18% ± 0.020 and displayed vigorous antimicrobial activity against <em>Staphylococcus aureus</em>, <em>Escherichia coli</em>, and <em>Candida albicans</em>. Also, the packaging study revealed that chillies packed with the CPG-IV film containing the highest amount of GA showed a limited weight loss percentage in comparison with unpacked chillies and those packed with a polyethylene film over 14 days of storage. The above results suggested that the prepared films meet the essential requirements of green chilli packaging applications.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 767-784"},"PeriodicalIF":0.0,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00339c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable synthesis methods of lignin-based copolymers: recyclable non-carbodiimide catalytic systems in aqueous solvent 木质素基共聚物的可持续合成方法:水溶液中可回收的非碳二亚胺催化体系
RSC Applied Polymers Pub Date : 2026-02-09 DOI: 10.1039/D5LP00387C
Christian Gonzalez, Arijit Ghorai and Hoyong Chung
{"title":"Sustainable synthesis methods of lignin-based copolymers: recyclable non-carbodiimide catalytic systems in aqueous solvent","authors":"Christian Gonzalez, Arijit Ghorai and Hoyong Chung","doi":"10.1039/D5LP00387C","DOIUrl":"https://doi.org/10.1039/D5LP00387C","url":null,"abstract":"<p >Lignin is a valuable biopolymer that serves as a raw material for producing functional polymers due to its abundance, low price, sustainability, and high aromatic content. However, conventional lignin modification methods often rely on environmentally harmful reagents, solvents, and catalysts, primarily because these are common in traditional organic and polymer chemistry. Therefore, utilizing more sustainable solvents, reagents, and catalysts for synthesizing biomass-based, biodegradable polymers is crucial for developing more sustainable production methods. In this work, a lignin-containing copolymer, lignin-<em>graft</em>-polycaprolactone (lignin-<em>graft</em>-PCL), was synthesized using more environmentally friendly solvents, reagents, and catalysts. The first innovation focuses on natural lignin modification. While conventional methods use <em>N</em>,<em>N</em>′-dicyclohexylcarbodiimide (DCC) and 4-dimethylaminopyridine (DMAP) to introduce carboxylic acid functionality into lignin, this study employs 2-chloro-1-methylpyridinium iodide (Mukaiyama reagent), which eliminates the formation of harmful byproducts such as <em>N</em>,<em>N</em>′-dicyclohexylurea (DCU) while maintaining high efficiency. Additionally, a tetrahydrofuran (THF)/water cosolvent system was used for lignin modification, replacing the traditionally used dimethylformamide (DMF). The second key innovation is the use of a recyclable catalyst system for lignin-based graft copolymer synthesis, which requires separate synthesis of PCL prior to graft onto lignin through covalent linkage. Unlike conventional approaches, this study presents a new recyclable polymer bound catalyst, 1,3,4,6,7,8-Hexahydro-2<em>H</em>-pyrimido[1,2-<em>a</em>] pyrimidine, polymer-bound (PS-TBD), for a ε-caprolactone polymerization. The PS-TBD catalyst was successfully recycled and demonstrated sustained performance over four consecutive cycles, showing only a gradual reduction in efficiency. Comprehensive spectroscopic analyses confirmed the chemical structures of all synthesized products obtained from the esterification in lignin modification, ring-opening polymerization, and copolymerization, demonstrating high efficiency.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 823-838"},"PeriodicalIF":0.0,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00387c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accelerated ageing of silicone rubber and XLPE used in HV cable accessories: a thermomechanical analysis 高压电缆附件用硅橡胶和交联聚乙烯的加速老化:热力学分析
RSC Applied Polymers Pub Date : 2026-02-05 DOI: 10.1039/D5LP00369E
Oscar Kayanja, Emre Kantar, Svein M. Hellesø, Julia Glaum, Sverre Hvidsten and Mari-Ann Einarsrud
{"title":"Accelerated ageing of silicone rubber and XLPE used in HV cable accessories: a thermomechanical analysis","authors":"Oscar Kayanja, Emre Kantar, Svein M. Hellesø, Julia Glaum, Sverre Hvidsten and Mari-Ann Einarsrud","doi":"10.1039/D5LP00369E","DOIUrl":"https://doi.org/10.1039/D5LP00369E","url":null,"abstract":"<p >Medium and high-voltage cable accessories, such as terminations and connectors, operate under harsh mechanical and thermal stresses, influencing long-term reliability. These stresses may lead to deterioration in the mechanical properties of the materials, thereby reducing radial pressure. Hence, the number and size of microcavities at the solid–solid interfaces will increase, being detrimental to the electrical breakdown strength. To mitigate this, applying external compressive pressure after installation is proposed to address challenges with the microcavities. However, the long-term effect of the external compressive pressure on the mechanical properties of the materials remains unclear. This study investigates the combined effect of mechanical compression and thermal cycling on two types of insulating silicone rubber (SiR) and semiconductive SiR used in HV cable accessories, comparing them with cross-linked polyethylene (XLPE). The materials were subjected to 25% compressive strain and thermal cycling between −20 and 110 °C in air, while another set underwent only thermal cycling. Ageing under compression increased the compression set by ∼1% in hard SiR and ∼3% in soft and semiconductive SiR compared to unaged materials. Surface hardness increased significantly in soft and semiconductive SiR (∼3.7%) but slightly in hard SiR (∼0.3%). Surface roughness increased by 0.7–0.9 µm across all materials. After ageing, the stress-relaxation response decreased for both hard and soft SiR, whereas semiconductive SiR showed a slight increase. The material response to cyclic loading after accelerated ageing is presented, along with the suitability of these materials for future cable termination designs.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 785-795"},"PeriodicalIF":0.0,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00369e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ionogel thin films as a compatibilizing pretreatment for electrospray deposition 离子凝胶薄膜作为电喷涂沉积的增容预处理
RSC Applied Polymers Pub Date : 2026-01-26 DOI: 10.1039/D5LP00359H
Tejasvi Venkat, Hannah Mow, Emily Li, Weronika Wasniowska, Ayman Rouf, Noah M. McAllister, Zainab Al-Jaleel and Jonathan P. Singer
{"title":"Ionogel thin films as a compatibilizing pretreatment for electrospray deposition","authors":"Tejasvi Venkat, Hannah Mow, Emily Li, Weronika Wasniowska, Ayman Rouf, Noah M. McAllister, Zainab Al-Jaleel and Jonathan P. Singer","doi":"10.1039/D5LP00359H","DOIUrl":"https://doi.org/10.1039/D5LP00359H","url":null,"abstract":"<p >Electrospray deposition applies thin films to conductive or hydrated targets, but not insulators, due to charge repulsion. Pretreatment of coating insulating substrates with the use of removable ionogel thin films 100–800 nm produces (self-limiting) electrospray deposition coatings of similar thicknesses to those produced on conductive surfaces, independent of humidity.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 524-529"},"PeriodicalIF":0.0,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00359h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing the mechanical properties of epoxy with graphene quantum dots: a molecular dynamics study 石墨烯量子点增强环氧树脂力学性能的分子动力学研究
RSC Applied Polymers Pub Date : 2026-01-26 DOI: 10.1039/D5LP00373C
Swapnil S. Bamane, Prathamesh P. Deshpande, Folarin Erogbogbo and Ozgur Keles
{"title":"Enhancing the mechanical properties of epoxy with graphene quantum dots: a molecular dynamics study","authors":"Swapnil S. Bamane, Prathamesh P. Deshpande, Folarin Erogbogbo and Ozgur Keles","doi":"10.1039/D5LP00373C","DOIUrl":"https://doi.org/10.1039/D5LP00373C","url":null,"abstract":"<p >Polymers are the key to the next generation of high-performance materials for their applications in aerospace, defense, and energy. Thermoset polymers like epoxy are widely used as a matrix material in composites due to their ease of processability and compatibility with reinforcement materials. There have been significant efforts in the development of polymer materials properties using nanofillers such as graphene, carbon nanotubes, rubber, and metal oxides. However, graphene quantum dots (GQD), a zero-dimensional nano-scale filler material, have not been extensively explored towards improvement of the mechanical properties of polymers. The objective of this study is to understand the effects of GQDs on the mechanical properties of the epoxy. The impact of various functional GQDs is evaluated on mechanical properties such as Young's Modulus, yield strength, and Poisson's ratio. The predicted materials properties using a fixed-bond interface forcefield (IFF) are compared with a reactive forcefield, ReaxFF. The results of this study demonstrate that the amine-functionalized GQDs improve the Young's modulus of the epoxy by 14% and the yield strength by 47%. Furthermore, MD simulations offer nanoscale insights into the energy distributions, free volume, and increase of free volume pockets in the material. The results and observations of this study provide valuable nano-scale insights into accurate and efficient modeling of GQD nanocomposite materials for high-performance applications in aerospace, defense, and energy.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 753-766"},"PeriodicalIF":0.0,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00373c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of uniaxially stretched single-layer and multi-layer blown films based on poly(butylene adipate-co-terephthalate) and inorganic fillers for food and agriculture applications 食品和农业用无机填料单轴拉伸单层和多层吹膜的研究
RSC Applied Polymers Pub Date : 2026-01-21 DOI: 10.1039/D5LP00306G
Debarshi Nath, Matias Menossi, Ehsan Pesaranhajiabbas, Michael R. Snowdon, Amar K. Mohanty and Manjusri Misra
{"title":"Study of uniaxially stretched single-layer and multi-layer blown films based on poly(butylene adipate-co-terephthalate) and inorganic fillers for food and agriculture applications","authors":"Debarshi Nath, Matias Menossi, Ehsan Pesaranhajiabbas, Michael R. Snowdon, Amar K. Mohanty and Manjusri Misra","doi":"10.1039/D5LP00306G","DOIUrl":"https://doi.org/10.1039/D5LP00306G","url":null,"abstract":"<p >This study develops a biodegradable flexible packaging material using poly(butylene adipate-<em>co</em>-terephthalate) (PBAT) with talc or CaCO<small><sub>3</sub></small> (at 25 wt%) using the blown film extrusion method for flexible packaging applications. The films were produced in single-layer (SL) and tri-layer (TL) configurations. The maximum stretch ratio (SR) obtained for the TL-PBAT/talc25%, TL-PBAT/CaCO<small><sub>3</sub></small>25%, and SL-PBAT/CaCO<small><sub>3</sub></small>25% were 4, 5.5, and 6, respectively. The mechanical properties of the PBAT/talc films were better than the PBAT/CaCO<small><sub>3</sub></small> films for both stretched and unstretched films. With uniaxial orientation in the machine direction, the tensile strength, impact strength, and modulus increased for all films while the elongation at break decreased. The maximum improvement was shown for tensile strength, where this property increased by 250%, 400%, and 300% for TL-PBAT/talc25%, SL-PBAT/CaCO<small><sub>3</sub></small>25%, and TL-PBAT/CaCO<small><sub>3</sub></small>25%, respectively, after stretching to the maximum SR. This is attributed to strain-induced crystallization and strong alignment of polymer chains in the machine direction. This is evident from the improvement of barrier performance of the films upon stretching, also attributed to the increase in crystallinity of the films. The measurement of percentage crystallinity was conducted using DSC and XRD techniques, where the crystallinity of the samples increased with an increase in SR. Although other factors also influence the improvement of stretched film performance, an increase in crystallinity is considered one of the most important factors. Morphological analysis of the samples shows better talc dispersion than CaCO<small><sub>3</sub></small> and a strong orientation of the matrix in the stretching direction.</p>","PeriodicalId":101139,"journal":{"name":"RSC Applied Polymers","volume":" 2","pages":" 674-688"},"PeriodicalIF":0.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/lp/d5lp00306g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Harnessing 1,8-Naphthalimide based amide capped with Pluronic F127 micelles for the detection of chlorpyrifos methyl and erythrosine B 利用Pluronic F127胶束覆盖的1,8-萘酰亚胺基酰胺检测甲基毒死蜱和红酶B
RSC Applied Polymers Pub Date : 2026-01-21 DOI: 10.1039/D5LP00287G
Nisha Jain and Navneet Kaur
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