Journal of Polymer Research最新文献

{"title":"Effects of PEG surface modification of magnetic nanoparticles on sonocatalysis and photocatalysis in PVDF composites","authors":"Vitalii Salnikov,&nbsp;Sayara Aga-Tagieva,&nbsp;Valeria Kolesnikova,&nbsp;Petr Ershov,&nbsp;Petr Shvets,&nbsp;Farid Orudzhev,&nbsp;Alexander Omelyanchik,&nbsp;Valeria Rodionova","doi":"10.1007/s10965-025-04313-3","DOIUrl":"10.1007/s10965-025-04313-3","url":null,"abstract":"<div><p>This study reveals an innovative combination of polyvinylidene fluoride (PVDF) polymer membrane with nanostructured Zn_0.3Co_0.7Fe₂O₄ magnetic fillers that enables photo- and sonocatalytic degradation of organic dyes. Our findings demonstrate that additional coating of Zn_0.3Co_0.7Fe₂O₄ nanoparticles functionalized with polyethylene glycol (PEG) increases the crystallinity of the PVDF matrix and reduces phase separation, thereby enhancing sonocatalytic degradation of methylene blue (50.4% degradation compared to 25.8% for composite with bare nanoparticles). However, the insulating nature of PEG limits photocatalytic activity. These findings highlight the complex interplay between microstructure and catalytic performance, emphasizing the importance of comprehensive material characterization for composite performance tuning.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of polymer-grafted thermally reduced graphene oxide by RAFT polymerization and their effects on properties of cured unsaturated polyester resins. I. Synthesis of polymer-grafted thermally reduced graphene oxide by RAFT polymerization","authors":"Rong-Woei Chang,&nbsp;Yeong-Jenq Wang,&nbsp;Jy-Ning Yang,&nbsp;Yan-Jyi Huang","doi":"10.1007/s10965-025-04389-x","DOIUrl":"10.1007/s10965-025-04389-x","url":null,"abstract":"<div><p>The polymer-grafted thermally reduced graphene oxide (TRGO) as low-profile additive (LPA) for unsaturated polyester resins (UP) was synthesized by simultaneous coupling reaction and reversible addition-fragmentation chain transfer (RAFT) process. Z functionalized S-Benzyl S'-trimethoxysilylpropyltrithiocarbonate (BTPT) was used as couplable RAFT chain transfer agent to prepare the TRGO-polymer, where the grafted polymer was made from poly(butyl acrylate)-b-poly(methyl acrylate-co-glycidyl methacrylate) (designated as TRGO-g-PBA-b-P(MA-co-GMA)). For the six TRGO-polymer, abbreviated as TRGO-Gx-yK (x = 10 or 20; y = 8, 17, or 30), the initial molar composition of GMA incorporated in exterior grafted polymer was set at 10 or 20 mol%, molecular weights (M_n) of grafted polymer were controlled at nominal values of 8000, 17000, and 30000 g/mol, the molar grafting ratio (G_p) was 15.6 to 216 μmol polymer chain/g TRGO, and the molar grafting ratio of epoxy group in GMA residue (G_p,GMA) was 154 to 1490 μmol epoxy group/g TRGO. G_p and G_p,GMA were lower for TRGO-polymer with a higher nominal M_n for the grafted polymer chain, which was ascribed to the more noticeable shielding effect for a longer grafted polymer chain on TGRO during synthesis. The number of stacked layers (N) from XRD measurements was 143.2, 14.3, and 6.9 for graphite, GO, and TRGO, respectively. For polymer-grafted TRGO, N decreased to 3.8–6.9. Either increasing M_n or increasing GMA composition in the exterior grafted polymer on TRGO led to a smaller N. Higher G_p, lower N, or higher G_p,GMA would enhance miscibility for styrene/UP/TRGO-polymer system during cure due to better dispersion and interfacial adhesion.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04389-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced ionic conductivity in sodium-ion polymer electrolytes: The role of ethylene carbonate in optimizing NaPF6 based PEO:PVDF-HFP polymer electrolytes","authors":"I S Ravi Varma,&nbsp;Venkata Ramana Jeedi,&nbsp;Kiran Kumar Ganta,&nbsp;Rayudu Katuri,&nbsp;N Kundana,&nbsp;G Upender,&nbsp;Ch Venkata Koti Reddy,&nbsp;V. Suryanarayana,&nbsp;S. Ramesh","doi":"10.1007/s10965-025-04399-9","DOIUrl":"10.1007/s10965-025-04399-9","url":null,"abstract":"<div><p>This study investigates the impact of ethylene carbonate (EC) as a plasticizer in poly(ethylene oxide) (PEO) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer blend electrolytes doped with sodium hexafluorophosphate (NaPF₆). Using solution casting technique, polymer electrolyte membranes with varying EC concentrations (0–10 wt%) were synthesized and characterized through XRD, FTIR, DSC, SEM, impedance spectroscopy, and dielectric analysis. Key findings reveal that an 8 wt% EC composition optimally balances amorphization and structural integrity, achieving a maximum ionic conductivity of 1.49 × 10⁻⁴ S/cm at room temperature. This enhancement is attributed to reduced crystallinity, increased segmental motion, and improved ion dissociation. Morphological studies confirm reduced phase separation and improved homogeneity at the optimal EC concentration. structural and electric and dielectric analyses highlight the superior ionic mobility, reduced activation energy, and extended DC conductivity plateau for the 8% EC system, underscoring its suitability for advanced energy applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel preparation method and performance evaluation of polyacrylic acid high-carbon alkyl esters","authors":"Tiantian Zhang,&nbsp;Kunyu Li,&nbsp;Yuwei Gao,&nbsp;Ting Liu,&nbsp;Zhengsheng Ma","doi":"10.1007/s10965-025-04377-1","DOIUrl":"10.1007/s10965-025-04377-1","url":null,"abstract":"<div><p>Polyacrylic acid high-carbon alkyl esters provide unique advantages in the fields of diesel oil low-temperature flow modification, crude oil demulsification and heavy oil viscosity reduction, so these esters have been widely considered. In this work, a novel method is proposed for preparing polyacrylic high-carbon alkyl esters, which involves an initial polymerization step and a subsequent esterification step, in contrast to the traditional approach, which involves initial esterification and subsequent polymerization. In the initial step, acrylic acid, methyl acrylate, maleic anhydride and methacrylic acid were selected as monomers and prepared separately via polymerization in an aqueous solution. A novel redox initiation system comprising ammonium persulfate (APS) and N,N-diethyl hydroxylamine (DEHA) was established for the first time to regulate the molecular weight distribution of the polymer. In the second step, the polymer was esterified with different high-carbon alcohols under catalysis to obtain products with various ester groups. Notably, the use of poly(tetradecyl acrylate) could reduce the cold filter point of base diesel to 4–5 °C and the freezing point to 1 °C. The application of polyhexadecyl acrylate could reduce the viscosity of a heavy oil, with a viscosity reduction rate of 32.5%, and decrease the pour point of the heavy oil from 5 °C to 3 °C.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic nanomaterials reinforced PLA nanocomposite: impact of morphology and external field on magneto-rheological flow behaviour","authors":"Gourhari Chakraborty,&nbsp;Sayan Bhattacharjee,&nbsp;Vimal Katiyar,&nbsp;G. Pugazhenthi","doi":"10.1007/s10965-025-04383-3","DOIUrl":"10.1007/s10965-025-04383-3","url":null,"abstract":"<div><p>Carbon template (graphene oxide (GO) and carbon fiber (CF)) based magnetic nanomaterials like G-t-F (GO-Fe₃O₄), G-t-FC (GO-CoFe₂O₄), and CF-t-F (CF-Fe₃O₄) were synthesized for this work and successfully incorporated into poly (lactic acid) (PLA) matrix. Saturation magnetism was observed in the ferromagnetic region for synthesized templated materials. PLA-based composites were fabricated by solution casting and filler loading varied in the range of 0.5–2 wt.%. An investigation was conducted on the effects of magnetic filler's nature and structure on the material identities, thermal behaviors, and melt flow properties of the composites. Thermal stability was improved for MC-G-t-F-0.5, and nucleation properties were observed through DSC analysis. Rheology investigations under a magnetic field (current: 0–0.6 A) indicated that the flow behavior of composites is similar to that of magnetorheological fluid. Han plot, Cole–Cole Plot, and Van-Gurp-Palmen plot were studied, and network formation was observed under a magnetic field. Constitutive mechanical models such as Bingham, Casson, and Herschel-Bulkley (HB) were utilized to determine magnetorheological (MR) flow parameters. In the case of a representative magnetic particle nanocomposite, PLA/G-t-F, the dependency of yield stress with G-t-F weight fraction (φ) and magnetic flux density (B) was investigated and recorded. It was observed that composite melt behavior is dependent on the type of magnetic filler, weight fraction, and magnetic flux density.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of polymer-grafted thermally reduced graphene oxide by RAFT polymerization and their effects on properties of cured unsaturated polyester resins. II. Volume shrinkage, mechanical properties, thermal conductivity, and surface resistivity","authors":"Rong-Woei Chang,&nbsp;Yeong-Jenq Wang,&nbsp;Jy-Ning Yang,&nbsp;Yan-Jyi Huang","doi":"10.1007/s10965-025-04376-2","DOIUrl":"10.1007/s10965-025-04376-2","url":null,"abstract":"<div><p>Effects of concentration (0–0.5 wt%) and type of thermally reduced graphene oxide (TRGO) and diblock copolymer-grafted TRGO, namely, TRGO-g-poly(butyl acrylate)-b-poly(methyl acrylate-co-glycidyl methacrylate) (TRGO-Gx-yK) with GMA compositions in P(MA-co-GMA) at 10 or 20 mol% (x = 10 or 20) and M_n for grafted polymer PBA-b-P(MA-co-GMA) at 30 K, 17 K, or 8 K (y = 30, 17, or 8), as low-profile additives (LPA) for unsaturated polyester resins (UP), on cured sample morphologies and properties of low-shrink UP after cure at 110 °C have been investigated. The decreasing order of compatibility for styrene (St)/UP/TRGO-polymer system before reaction, as predicted by the molecular polarity difference per unit volume between UP and grafted polymer of TRGO-polymer, showed that TRGO-Gx- 8 K &gt; TRGO-Gx- 17 K &gt; TRGO-Gx- 30 K, and TRGO-G20-yK &gt; TRGO-G10-yK. The trend was in agreement with that of decreasing mutual miscibility of St/UP/TRGO-polymer system after cure at 110 °C, as observed from SEM and TEM micrographs. Adding 0.5 wt% of TRGO-polymer with M_n = 8000 for PBA-b-P(MA-co-GMA) and 20 mol% GMA in P(MA-co-GMA) as LPA can lead to a decrease of volume shrinkage by 64%, an increase of Young’s modulus by 12%, a slight decrease of tensile strength by 9%, a decrease of impact strength by 14%, an increase of thermal conductivity by 22%, and a decrease of surface resistivity by 99.9%, when compared with that of neat St/UP cured system. All properties depended on M_n and GMA composition for grafted polymer onto TRGO, and followed the decreasing order of TRGO-Gx- 8 K &gt; TRGO-Gx- 17 K &gt; TRGO-Gx- 30 K and TRGO-G20-yK &gt; TRGO-G10-yK &gt; TRGO.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04376-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the performance of fused filament fabricated ABS through carbon fiber reinforcement: a study on structural integrity and material behavior","authors":"Sovan Sahoo,&nbsp;Subhash Chandra Panja,&nbsp;Debashis Sarkar","doi":"10.1007/s10965-025-04387-z","DOIUrl":"10.1007/s10965-025-04387-z","url":null,"abstract":"<div><p>The mechanical properties of components manufactured via fused filament fabrication (FFF) are generally lower than those of injection-molded parts due to the layer-by-layer deposition process and its reliance on interlayer diffusion. Fiber reinforcement offers a potential solution by improving strength, but its influence extends beyond mechanical performance. Despite extensive research, a significant gap remains in understanding interlayer diffusion, mechanical anisotropy, and the thermal and surface effects of fiber reinforcement in FFF composites. This study examines the effects of 10 wt% carbon fiber (CF) reinforcement in acrylonitrile butadiene styrene (ABS) on interlayer diffusion across varying layer thicknesses and its influence on mechanical properties. Increasing the layer thickness from 0.18 mm to 0.34 mm in pure ABS raises pore density from 3.35% to 11.20%, significantly reducing tensile strength. In contrast, ABS-CF composites exhibit a 41.98% average increase in tensile strength and reduced sensitivity to layer thickness variations. Anisotropy analysis, further incorporating raster angle and build orientation, shows a reduction in tensile strength and strain variation by 57.32% and 78.09%, respectively, indicating improved mechanical consistency. Furthermore, ABS-CF demonstrates enhanced thermal stability, with increased thermal expansion of deposited strands promoting interlayer diffusion. This not only improves mechanical performance but also results in distinct surface characteristics, where overall surface roughness remains comparable or lower, yet individual layer-level roughness rises by 57.30%. Additionally, surface hardness improves by 26.67%. However, these enhancements come with a transition from ductile to brittle failure, likely due to non-uniform fiber distribution and thermal mismatch between ABS and CF during fabrication.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermo-mechanical and mechanical performance of interlaced glass fiber epoxy hybrid composites reinforced with almond biochar biofiller","authors":"S. Gokulraj,&nbsp;K. G. Saravanan,&nbsp;K. Vijayakumar,&nbsp;K. Arunkumar","doi":"10.1007/s10965-025-04400-5","DOIUrl":"10.1007/s10965-025-04400-5","url":null,"abstract":"<div><p>This paper investigates the effect of incorporating waste biomass-derived biochar into epoxy hybrid composites reinforced with glass fiber (GF). Hand lay-up methods were used to fabricate interlaced composites, maintaining a constant 20% weight fraction of glass fiber while varying the filler content from 0 to 20% by weight. The biochar filler, obtained from almond shells, was uniformly dispersed within the epoxy resin using ultrasonication. The mechanical properties (MPs), water absorption (WA), and thermomechanical (TM) of the almond biochar hybrid polymer composites (PCs) were comprehensively examined. Experimental results indicate that composites containing higher proportions of biochar filler exhibit increased water absorption. Notably, the tensile strength (TS) and flexural strength (FS) of the 10% almond biochar particulate addition exhibit the highest values 324.66 MPa and 376.12 MPa, respectively. The ABC10 composite shows an increase of 21.36 MPa in TS and 13.17% in FS compared to the ABC0 composite. Scanning electron microscopy analysis elucidates the dispersion of particles within the composites and the tensile mode of failure. Dynamic properties reveal improved damping characteristics, with the addition of 10% filler leading to higher storage modulus (SM) and loss modulus (LM). The ABC10 interleaved composite exhibited a maximum SM of 8496.4 MPa, which is 24.9% higher than that of the ABC0 interleaved composite, indicating increased stiffness. This suggests that the ABC polymer composites increased stiffness contributed to the higher storage modulus. Overall, this study underscores the potential of utilizing biomass waste-derived almond shell biochar as a cost-effective reinforcement in polymer composites, demonstrating its efficacy in enhancing various material properties.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of solvent selection on the morphology and release profiles of vitamin D3-loaded Poly(ε-caprolactone) electrospun fibers: In-silico and experimental study","authors":"Yeslie Carrillo Cabrera,&nbsp;Antonio Ledezma Pérez,&nbsp;José Roman Torres-Lubián,&nbsp;Leticia Larios-López,&nbsp;René Gerardo Escobedo-González,&nbsp;María Inés Nicolás Vázquez,&nbsp;Perla E. García-Casillas","doi":"10.1007/s10965-025-04395-z","DOIUrl":"10.1007/s10965-025-04395-z","url":null,"abstract":"<div><p>During the electrospinning process, the choice of solvent significantly influences the size, surface morphology, mechanical properties, and drug delivery efficiency of electrospun fibers. This study investigates the effects of 2,2,2-trifluoroethanol (TFE) and a binary system of dichloromethane (DCM) and N,N-dimethylformamide (DMF) on the characteristics of poly(ε-caprolactone) (PCL, Mn = 80,000 g/mol) fibers loaded with vitamin D3 (VD3) from In-Silico and experimental perspectives. Electrospun fibers produced using DCM:DMF (80:20) exhibited larger diameters (2.53 ± 0.60 μm), greater roughness (17.90 nm), and higher interconnectivity due to DCM´s high volatility. In contrast, fibers spun using TFE showed smaller diameters (1.53 ± 0.50 μm), lower roughness (15.70 nm), and reduced size dispersion, attributed to the solvent's low surface tension and higher dielectric constant. Spectroscopic analyses (UV–Vis and 1H-NMR) confirmed the encapsulation of VD3 within the PCL fibers, demonstrating successful drug integration into the polymer matrix. VD3 release profiles indicated that fibers produced with DCM/DMF provided a more controlled release, with minimal differences between high (log K = -0.48; K = 0.33) and low (log K = -0.66; K = 0.22) VD3 concentrations. In contrast, TFE fibers exhibited higher release rates at high VD3 concentrations (log K = -0.072; K = 0.93) than low concentrations (log K = -0.63; K = 0.24). This behavior is attributed to the excellent VD3 retention in the DCM/DMF system and a more sustained release, supported by theoretical calculations of the interaction energy between PCL and VD3, solvation effects, and thermodynamic properties. Both systems achieved complete release over a similar timeframe, demonstrating consistent and prolonged behavior. Mechanical characterization revealed that TFE-derived fibers were stiffer (elastic modulus: 112.70 MPa) due to improved chain alignment, whereas VD3 acted as a plasticizer, reducing stiffness in both solvent systems. These findings underscore the critical role of solvent selection in tailoring electrospun fibers for controlled drug delivery, highlighting the importance of balancing morphological, mechanical, and release properties to optimize therapeutic applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of different forms of SiO2 nanoparticles on the performance of 3D-printed Poly(lactic acid) composites","authors":"Ning Ma,&nbsp;Jiacong Chen,&nbsp;Ziyang Chen,&nbsp;Qian Cheng,&nbsp;Yang Chen,&nbsp;Juhe Sun","doi":"10.1007/s10965-025-04398-w","DOIUrl":"10.1007/s10965-025-04398-w","url":null,"abstract":"<div><p>Poly(lactic acid) (PLA)-based composites incorporated with silicon dioxide (SiO₂) nanoparticles are widely used in medical, aviation, automotive and other fields due to their excellent mechanical, antibacterial and biocompatibility properties. However, current research has primarily focused on the influence of a single type of SiO₂ nanoparticle at varying concentrations, and there is limited research on how the size and shape of hydrophobic SiO₂ nanoparticles affect the properties of PLA matrix. Here, this study prepares PLA/SiO₂ nanoparticle composites using hydrophobically modified SiO₂ nanoparticles of different sizes and shapes and investigates the effect of nanoparticle size and shape on composites. Mechanical and thermodynamic tests results show that the addition of SiO₂ nanoparticles can significantly improve the mechanical properties and thermal stability of PLA composites, which can be explained by the contribution of nanoparticle dispersion, interfacial interaction and particle morphology. Scanning electron microscopy images of the tensile fracture surfaces further verify the effect of different forms of SiO₂ nanoparticles on PLA matrix, offering valuable guidance for the design and optimization of composites in practical applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}