Polymer Bulletin最新文献

{"title":"Synergistic toughening and strengthening of PHBV/bio-based engineering polyester elastomer blends through copper sulfate metal-ligand cross-linking","authors":"Sudan Zhou,&nbsp;Shuo Feng,&nbsp;Jiawei Huang,&nbsp;Yujuan Jin,&nbsp;Huafeng Tian,&nbsp;Yiqi Fang,&nbsp;Rui Tie,&nbsp;Shuyi Zhou","doi":"10.1007/s00289-025-05704-8","DOIUrl":"10.1007/s00289-025-05704-8","url":null,"abstract":"<div><p>Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) held promise as a bio-based thermoplastic material, however, its industrial applicability was impeded by factors such as large spherulite size, brittleness, and suboptimal processability. To overcome these limitations, a bio-based engineering polyester elastomer (BEPE) was introduced and blended with PHBV, resulting in blends that were entirely bio-based. To enhance the toughness of the PHBV/BEPE blends, copper sulfate (CuSO₄) was introduced as a compatibilizer. By forming metal coordination bonds, CuSO₄ effectively improved the interfacial interaction between the two moieties of the blends, leading to improved mechanical properties. The results indicate that compared with PHBV/BEPE blends, the elongation at break of PHBV/BEPE blends containing 2.0 phr CuSO₄ increased from 2.42 to 6.98%, and the tensile strength increased from 16.48 to 20.71 MPa. The addition of CuSO₄ facilitated heterogeneous nucleation, resulting in a reduction in the crystallization size of PHBV. Notably, metal coordination bonds were formed between CuSO₄ and both PHBV and BEPE, while hydrogen bonding between PHBV and BEPE further strengthened their compatibility. This synergistic effect significantly improved the toughness and strength of the blends, thus greatly enhancing its feasibility and advantages in numerous industrial applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3909 - 3926"},"PeriodicalIF":3.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938259","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":"Disclinations and fractons of Cosserat elasticity in isotactic polypropylene doped with graphene and nanographite particles","authors":"L. V. Elnikova,&nbsp;A. N. Ozerin,&nbsp;V. G. Shevchenko,&nbsp;P. M. Nedorezova,&nbsp;O. M. Palaznik,&nbsp;A. T. Ponomarenko,&nbsp;V. V. Skoi,&nbsp;A. I. Kuklin","doi":"10.1007/s00289-025-05699-2","DOIUrl":"10.1007/s00289-025-05699-2","url":null,"abstract":"<div><p>Small-angle neutron scattering, dielectric spectroscopy, and dynamic mechanical analysis data are reported for composites of isotactic polypropylene (IPP) with graphene nanoparticles (GNP) and nanographite. In various samples, the volume of the IPP matrix with a high degree of crystallinity contains GNP with concentrations of 0.7 and 1.8 wt% and nanographite with concentrations of 1.5 and 3.6 wt%. For these composite systems, we applied a model of the evolution of linear disclination defects, which determines the morphology of nanosized aggregates of GNP and nanographite formed in the IPP volume. Using the theory of micropolar elasticity, or the Cosserat theory (Cosserat, Cosserat) with the fracton mechanism of the first type, correlated with the evolution of disclinations, we performed numerical estimates of the temperature and concentration dependencies of the elasticity and thermodynamic characteristics in the framework of the Monte Carlo algorithm on a dual lattice in the basis of lattice defects.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3867 - 3884"},"PeriodicalIF":3.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938261","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":"Enhanced antimicrobial properties of cotton gauze functionalized with biosynthesized selenium nanoparticles","authors":"Anmol Singh,&nbsp;Priyankar Dey,&nbsp;Hisaaki Mihara,&nbsp;Ranjana Prakash,&nbsp;Nagaraja Tejo Prakash","doi":"10.1007/s00289-025-05683-w","DOIUrl":"10.1007/s00289-025-05683-w","url":null,"abstract":"<div><p>The challenge of bacterial contamination, which triggers an immune response, remains a significant hurdle in the biomedical field. This study explored the use of exopolymeric substance-capped selenium nanoparticles (EPS-SeNPs) to enhance the antibacterial properties of cotton gauze. The modification of the gauze involved using chitosan as an adhesive agent to improve the deposition of EPS-SeNPs. The resulting functionalized gauze, termed EPS-SeNPs@CH_CG, was further analyzed using physicochemical techniques such as XRD, FTIR, and FE-SEM. This functionalized gauze exhibited both anti-adhesive and bactericidal properties against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>. A prolonged antibacterial effect was also observed to be facilitated by the sustained release of selenium from the gauze. This study underscores the potential of EPS-SeNPs@CH_CG-functionalized cotton gauze for anti-microbial enhancement which can be an asset for biomedical applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3885 - 3908"},"PeriodicalIF":3.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938260","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 palm empty fruit bunch reinforced laminated composites: effect of different recycled plastic and matrix composition","authors":"Nur Ain Adila Abd Wahab,&nbsp;Norhawanis Shukri,&nbsp;Mariatti Jaafar,&nbsp;Nor Hasima Che Hassan,&nbsp;Raúl García Sanz","doi":"10.1007/s00289-025-05692-9","DOIUrl":"10.1007/s00289-025-05692-9","url":null,"abstract":"<div><p>Natural fiber-reinforced polymer composites (NFRPCs) have been widely used in many applications due to their sustainable nature and potential to replace traditional synthetic polymer composites. This study aims to produce NFRPCs using recycled polypropylene (rPP) and recycled high-density polyethylene (rHDPE) and natural oil palm empty fruit bunch (OPEFB). Different matrix compositions were used to produce NFRPCs (rPP, rHDPE, and the blend of rPP/rHDPE (25:75, 50:50, 75:25)) with OPEFB as reinforcement using the compression method. Thermal stability and melt flow index analysis were used to observe the performance of the recycled plastic and the blends. Three-point bending and horizontal burning tests were employed to evaluate the composite samplesʼ flexural properties and fire-resistant behavior, respectively. The results indicated that recycled rPP/rHDPE blends show higher MFI if compared to pure rPP and rHDPE. The thermal stability and degradation temperature of the rHDPE matrix are higher compared to those of rPP and rPP/rHDPE blends due to rHDPE having long-linear branching with stronger intermolecular forces. NFRPCs composite with rPP matrix shows the highest flexural strength with 48.43 MPa; however, the rPP composites exhibit the highest burning rate of 19.81 mm/min. The composite fracture surface revealed predominant delamination between fiber layers and matrix.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3823 - 3839"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938520","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":"Enhancing air retention in natural rubber: a path to improved performance","authors":"Wichain Chailad,&nbsp;Keardtisak Tongsom,&nbsp;Kantima Chaochanchaikul,&nbsp;Chuntip Sakulkhaemaruethai","doi":"10.1007/s00289-025-05700-y","DOIUrl":"10.1007/s00289-025-05700-y","url":null,"abstract":"<div><p>Ensuring air retention in natural rubber (NR) is crucial for applications such as tyres, inner tubes, and sealing materials, where minimizing pressure loss enhances performance and durability. However, NR has poor gas barrier properties, necessitating modifications to improve air retention. This study evaluates the effects of three cost-effective industrial fillers—bentonite, calcium carbonate, and carbon black, AUSTIN BLACK A-325 (CB)—on NR permeability and mechanical performance. Unlike prior research focusing on nanofillers or polymer blending, this study investigates large-scale, commercially viable fillers to provide practical solutions for industrial applications. NR composites containing 10–40 phr of each filler were tested for air permeability, tensile strength, tear resistance, and hardness. Air retention was measured using a custom-designed test apparatus, ensuring relevance for real-world applications, while mechanical properties were assessed following ASTM standards. The results indicate that CB is the most effective filler for reducing pressure loss, outperforming bentonite and calcium carbonate. Bentonite at 10 phr exhibited the lowest pressure loss, but its efficiency declined at higher concentrations due to poor dispersion. Calcium carbonate provided moderate and stable improvement, with diminishing effects at higher loadings. CB significantly enhanced tensile strength, peaking at 23.9 MPa at 20 phr, but had little impact on tear strength. Hardness increased with all fillers, with CB reaching 52 Shore A at 40 phr, followed by bentonite (47) and calcium carbonate (46). These findings emphasize filler selection and concentration optimization for balancing air retention and mechanical properties. CB is the most effective reinforcement and gas barrier modifier, making it ideal for industrial applications requiring low air permeability. Future research should explore filler combinations and long-term stability to optimize NR performance further.</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 9","pages":"3841 - 3866"},"PeriodicalIF":3.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938521","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 effect of calcium chloride as coagulant and (chitosan-graft-polyacrylamide) as flocculant for anionic dyes removal from wastewater","authors":"Batoul Ali,&nbsp;Hussam Addin Ezzo,&nbsp;Sami Karam,&nbsp;Majd Said,&nbsp;Yomen Atassi","doi":"10.1007/s00289-025-05663-0","DOIUrl":"10.1007/s00289-025-05663-0","url":null,"abstract":"<div><p>In this study, the coagulation–flocculation technique was used to achieve high removal ratio of organic anionic pollutants (taking methyl orange (MO) dye as a model) from highly polluted wastewater, 1000 ppm. To this end, chitosan grafted polyacrylamide (Ch-g-PAM) was synthesized using both radical initiator H₂O₂ and microwave (MW) irradiation to accomplish the grafting reaction. Ch-g-PAM was used as a flocculation agent, while calcium ions were used as a coagulation agent. The grafting ratio was 400%. The prepared Ch-g-PAM was characterized by Fourier-transform infrared (FTIR) spectroscopy and X-ray diffractometry (XRD). The effects of reaction parameters on graft polymerization were studied, which were chitosan/acrylamide ratio, MW power, time of polymerization, and chitosan molecular weight. The effects of coagulant and flocculant concentrations, pH of the medium, and the initial dye concentration on the dye removal ratio were studied. The results showed a correlation between dye removal ratio and dye concentration, which indicates that the coagulation–flocculation technique is an effective pretreatment technique to remediate wastewater. Contaminated water with a concentration of MO dye as high as 1000 ppm was treated, with a removal ratio of 87.26% (i.e., 1 g of flocculant removes about 47 g of MO dye from its 1000 ppm solution).</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3805 - 3822"},"PeriodicalIF":3.1,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938357","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":"Statistical determination of mechanical strength of talipot palm fiber using Weibull distribution","authors":"Md Shafiul Islam Dipta,&nbsp;Sanjida Haque,&nbsp;Suraya Sabrin Soshi,&nbsp;Md Abdul Gafur","doi":"10.1007/s00289-025-05693-8","DOIUrl":"10.1007/s00289-025-05693-8","url":null,"abstract":"<div><p>Talipot palm tree (<i>Coryphe umbraculifera</i>) is a plant species of eastern–southern countries. Like other palm species, talipot palm fiber exhibits potential as a reinforcement in polyester composites. Due to the unevenness present in the fiber body, natural fibers show different values for the same mechanical property across their length. Due to these scattered data, the calculation of the tensile properties of natural fiber using traditional methods is not adequate. This research aims to statistically estimate the ultimate tensile strength of talipot palm fiber, both untreated and treated with chemicals. The data have been fitted using a two-parameter Weibull distribution model. Kolmogorov–Smirnov test and Anderson–Darling test are used to check the goodness of fit of the empirical distribution. Alkalization, acetylation, and benzylation treatments were carried out for three different chemical concentrations (5, 10, and 15 wt%). X-ray diffraction (XRD) analysis and FTIR spectroscopy were done to ensure the effect of chemical treatments. The tensile strength of raw talipot palm fiber has been assessed at five distinct lengths (10, 15, 20, 25, and 30 mm). 10 mm raw palm fiber exhibited the highest tensile strength of 321.13 MPa, while 30 mm raw palm fiber showed the lowest tensile strength of 237.35 MPa. The 10% NaOH-treated talipot palm fiber had the highest tensile strength of 462.47 MPa, whereas the 5% benzylated talipot palm fiber displayed the lowest tensile strength of the treated fibers.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3785 - 3804"},"PeriodicalIF":3.1,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938358","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":"Temperature-, pH-, and light-responsive reversibly cross-linked micelle assemblies for efficient DOX delivery","authors":"Hanie Ahmadi,&nbsp;Vahid Haddadi-Asl","doi":"10.1007/s00289-025-05687-6","DOIUrl":"10.1007/s00289-025-05687-6","url":null,"abstract":"<div><p>Cancer is a global health concern, with millions diagnosed annually and over half dying. Traditional treatments struggle with low bioavailability, leading to toxicity. Solutions like hydrogels, liposomes, and polymeric micelles (PMs) are proposed. A series of stimuli-responsive PMs are fabricated for doxorubicin (DOX) delivery, allowing for efficient crosslinking and cleavage through controllable photodimerization of coumarin. The block copolymers are synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization where hydrophilic block is composed of poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA), and their hydrophobic block is composed of poly(7-acryloyloxy-4-methylcoumarin-<i>co</i>-methyl methacrylate) (P(AC-<i>r</i>-MMA)). DOX is efficiently delivered using these well-defined, nontoxic and multi-responsive PMs. The dynamic light scattering (DLS) data revealed that the size of the polymer assemblies altered in response to pH, temperature changes, and UV light irradiation. The LCST of PDMAEMA shifted from 54 to 59 °C after photodimerization of the coumarin group, indicating that the thermal behavior of PMs can be controlled by light. The Weibull mathematical model was used to study in vitro drug release kinetics from multi-responsive PMs, revealing sustained and controlled release patterns of DOX. DOX release can be controlled by various triggers, the cumulative release at pH = 4.5 is almost 20% higher than in neutral environment, due to the protonation of the PDMAEMA segment. Also, the cumulative DOX release faced a sharp drop of ~ 50% after UV light irradiation through cross-linked micelles. It is worth noting that a relatively low concentration of coumarin molecules resulted in highly efficient light-controlled drug release from the assemblies.</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 9","pages":"3715 - 3737"},"PeriodicalIF":3.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938241","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":"Methodology development: evaluation of structural, thermal, and mechanical properties of poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends for biodegradable mulch","authors":"Nikki Rodriguez,&nbsp;Fangzhong Xing,&nbsp;Osnat Gillor,&nbsp;Murat Guvendiren,&nbsp;Lisa Axe","doi":"10.1007/s00289-025-05681-y","DOIUrl":"10.1007/s00289-025-05681-y","url":null,"abstract":"<div><p>Microplastic pollution from the agriculture industry presents a growing environmental and public health concern, driven in part by the widespread use of poly(ethylene) (PE)-based mulch. While plastic mulch is essential for sustaining an increasing global population, its contribution to microplastic pollution necessitates alternative solutions. This work addresses the urgent need for biodegradable mulches (BDMs) that match the performance of traditional PE films. A comprehensive methodology is proposed for the development and characterization of novel BDM formulations, informed by scientific literature, regulatory guidelines, commercial practices, and industry standards. The proposed approach emphasizes scalable formulation and processing of biodegradable polymer feedstocks, avoiding toxic solvents through thermal blending. For laboratory-scale production, hot melt pressing and blow film molding techniques are highlighted for their ability to produce uniform and reproducible films. Uniaxial mechanical testing of dog bone-shaped samples is recommended for rapid performance screening against industry benchmarks while film stability, water absorption, and biodegradation are evaluated under simulated agricultural conditions. Analytical techniques such as thermogravimetric analysis and differential scanning calorimetry are employed to characterize key properties, ensuring that the developed BDMs align with practical and environmental demands.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3685 - 3713"},"PeriodicalIF":3.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-025-05681-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938243","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":"Surface modification of astralenes for obtaining optical composites based on photocurable acrylates","authors":"Valentine E. Tarasov,&nbsp;Julia A. Burunkova,&nbsp;Vera E. Sitnikova,&nbsp;Sergey A. Karpov,&nbsp;Aleksey V. Ivanov","doi":"10.1007/s00289-025-05684-9","DOIUrl":"10.1007/s00289-025-05684-9","url":null,"abstract":"<div><p>The development of communication systems based on the principle of quantum key distribution (QKD) requires the creation of new materials capable of limiting the power of laser radiation in optical systems. A promising solution may be a material based on acrylates and astralenes. However, the creation of an optical composite requires modification of the particle surface for uniform distribution of particles in the matrix. The two-stage modification technique developed by the authors allows reducing the amount of disordered carbon in the astralenes, as well as making them compatible with photocurable acrylic monomers. As a result, a transparent optical composite is obtained by photopolymerization. The success of the modification process is confirmed by the results of Raman and FTIR spectroscopy, TG analysis. The TEM method showed that the toroidal structure of the particles is preserved after the modification process. The study compared composites with 0.01, 0.05, 0.10%wt. astralenes and the acrylic copolymer. It is found that the introduction of particles into the reaction mass reduces the polymerization rate by more than 40%. At the same time, the conversion degree in samples with and without astralenes is comparable. The introduction of astralenes in the selected concentrations does not significantly affect the optical band gap of the material. The transparency of the obtained composites in the visible region and near IR range is ~ 90%, which allows them to be called optical.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"3739 - 3754"},"PeriodicalIF":3.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938242","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}