Journal of Applied Polymer Science最新文献

{"title":"Efficient Ultrasonic-Assisted Preparation of Nano-Mg(OH)2 to Enhance Polydimethylsiloxane Composite Flame Resistance","authors":"Yuemiao Zhang,&nbsp;Kun Wu,&nbsp;Junxi Wan,&nbsp;Jun Shi","doi":"10.1002/app.57013","DOIUrl":"https://doi.org/10.1002/app.57013","url":null,"abstract":"<div>\u0000 \u0000 <p>In this innovative study, an ultrasonic-enhanced continuous-flow method is introduced for one-step synthesis of hydrophobic hexagonal nano-magnesium hydroxide (MH(nm)). Distinct from traditional heating, it shortens reaction time remarkably and has an excellent higher selectivity (purify MH efficiently). The MH(nm) particles present the optimal polydispersity index (PDI) of 0.368, a 218.75% decrease over commercially available MH(μm) particles. Benefiting from the synergistic outcome between the unique physical effect of nanomaterials and the ultrasonic cavitation phenomenon, the polydimethylsiloxane (PDMS) nanocomposites (SS@MH(nm)/PDMS) with MH(nm) modified by sodium stearate (SS@MH(nm)) present excellent thermal conductivity and hydrophobicity. When 30% SS@MH(nm) and 30% SS@MH(μm) are added to PDMS nanocomposites, 30% SS@MH(nm)/PDMS shows a thermal conductivity of 0.4568 W m⁻¹ K⁻¹, 28.35% higher. Its contact angle is 129.47°, 41.27% larger. THR and SPR decrease by 10.49% and 38.45%, respectively. This work provides a simple, green, and efficient process for the preparation of hexagonal MH(nm) with an ortho-hexagonal shape and uniform distribution, and prevents PDMS combustion-property degradation in humidity, offering high-performance flame-retardant materials for humid-environment electrical equipment, with great application potential.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100742","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":"Tailoring Bio-Based Epoxy-Anhydride Thermosets: A Comprehensive Study on the Epoxidized Sucrose Soyate and Dodecenyl Succinic Anhydride System","authors":"Iryna Bon,&nbsp;Dean Webster","doi":"10.1002/app.57035","DOIUrl":"https://doi.org/10.1002/app.57035","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the development and optimization of bio-based thermosets synthesized from epoxidized sucrose soyate (ESS) and dodecenyl succinic anhydride (DDSA). It explored how variations in the stoichiometric ratio of epoxide-to-anhydride (<i>R</i>) and catalyst concentration influence the chemical, thermal, and mechanical properties of these sustainable thermosets. A multi-analytical approach was used to optimize curing conditions and characterize the resulting thermosets. The most effective curing process involved a two-stage protocol: initial curing at 120°C, followed by post-curing at 150°C, which enabled achieving the desired properties in a shorter period while minimizing energy consumption. Non-stoichiometric ratios demonstrated superior performance, with the optimal elasticity-strength balance achieved at <i>R</i> = 0.75 and maximum tensile toughness at <i>R</i> = 1.00. The thermosets exhibited excellent thermal stability, with initial decomposition temperatures exceeding 270°C in both oxidative and inert environments. Quaternary onium salt (BV-CAT7) was found to be the most efficient catalyst, with 3 wt % concentration at R = 0.75, providing optimal glass transition temperature, crosslink density, and thermal stability. Coating performance evaluations showed that formulations with <i>R</i> between 0.75 and 1.00, containing a 3% BV-CAT7, demonstrated superior performance in hardness, flexibility, solvent resistance, and adhesion. Finally, by systematically exploring the tunability and performance limits of ESS-DDSA systems, this research contributes to the broader goal of developing high-performance, sustainable alternatives to conventional petroleum-based thermosets, tailored for specific industrial applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100749","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":"Poly(Butanediol Sebacate-Butanediol Terephthalate) (PBSeT)/Zinc Gluconate (ZG) Nanocomposite Films: A Comprehensive Investigation of Mechanical, Thermal, Rheological, and Degradation Properties","authors":"Jia Mi,&nbsp;Yingchun Li,&nbsp;Wensheng Wang,&nbsp;Guang Nie,&nbsp;Zhimao Li,&nbsp;Zhichao He,&nbsp;Zhaobing Tang,&nbsp;Tong Liu,&nbsp;Yu Wang,&nbsp;Jianyu Xue,&nbsp;Chengke Yuan,&nbsp;Jinlong Lv,&nbsp;Jingkai Zhu","doi":"10.1002/app.57040","DOIUrl":"https://doi.org/10.1002/app.57040","url":null,"abstract":"<div>\u0000 \u0000 <p>Poly(butanediol sebacate-butanediol terephthalate) (PBSeT) has emerged as a promising biodegradable material, attributed to its excellent tensile strength and water vapor barrier properties. However, certain challenges persist, including susceptibility to puncture and tearing. To solve these problems, the researchers developed a composite material consisting of PBSeT and zinc gluconate (ZG) to improve the performance of PBSeT through the synergistic effect of ionic and hydrogen bonds. Notably, the tearing strength of the PBSeT/ZG-3 composite exhibits a remarkable increase of 48.7% relative to PBSeT alone, while the puncture load is enhanced by 25.3%. Furthermore, XRD and TG analyses indicate that the incorporation of ZG has a negligible impact on the crystallinity and thermal stability of the composites. Interestingly, the enzymatic degradation properties are significantly improved with increasing ZG content, and the enhanced hydrophilicity imparted by ZG results in a reduction in the water contact angle of the composite materials. In conclusion, the integration of ZG significantly enhances the puncture resistance, tear strength, and biodegradability of PBSeT. These advancements are critical for the development and implementation of novel applications, particularly in the fields of food packaging, films, and medical materials.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100550","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":"Effect of Heat Transfer and Cooling Behavior on Opacity of Injection Molded Polyethylene Terephthalate (PET)","authors":"D. Kamala Nathan,&nbsp;K. Narayan Prabhu","doi":"10.1002/app.57049","DOIUrl":"https://doi.org/10.1002/app.57049","url":null,"abstract":"<div>\u0000 \u0000 <p>A hand-operated injection molding machine was designed to investigate the effect of cooling behavior on the opacity of Polyethylene Terephthalate (PET). The study examined the effect of sample thickness, ranging from 0.5 to 3 mm, on the % transmission of molded samples. At a melt injection temperature of 280°C, reductions in % transmission for UV (365 nm), visible (560 nm), and IR (950 nm) regions were 43.8%, 19.9%, and 20%, respectively, in the steel mold. At 260°C, the corresponding reductions were higher, at 86.7%, 63.3%, and 40%. Copper and stainless steel molds were used to assess the effect of mold material on cooling behavior and heat flux transients. A faster heat extraction obtained with the copper mold resulted in a higher peak heat flux (135.2 kW m⁻²) than that for the stainless steel (55.3 kW m⁻²). Rapid cooling of the samples in the copper mold with a solidification time of 2.2 s resulted in high transmission values. In contrast, the longer solidification time of 4.4 s in the stainless steel mold promoted crystallization, significantly reducing the transparency of the molded components across all wavelength regions. No significant difference exists between the heat flux transients estimated at different melt injection temperatures. The study suggested that variation in the cooling rate during polymer processing significantly affects the transparency of the polymer.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100817","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":"High Strength and Toughness Epoxy Nanocomposites Reinforced With Epoxy-Terminated Hyperbranched Polymer","authors":"Hongyu Fan,&nbsp;Tao Sun,&nbsp;Shiji Zhang,&nbsp;Zhanjun Wu","doi":"10.1002/app.57071","DOIUrl":"https://doi.org/10.1002/app.57071","url":null,"abstract":"<div>\u0000 \u0000 <p>Epoxy composites reinforced and toughened with an epoxy-terminated hyperbranched polymer (ETHP) were successfully synthesized. The ETHP was derived from a bio-based epoxy resin, and its structure was confirmed using nuclear magnetic resonance (NMR) spectroscopy and Fourier transform infrared (FTIR) spectroscopy. The influence of ETHP content on the mechanical and thermophysical properties of epoxy composites was systematically investigated. The mechanical properties exhibited an initial increase followed by a decline with increasing ETHP loading. The 7.5 wt% ETHP/epoxy composite demonstrated optimal mechanical performance, with a tensile strength of 91.7 MPa, elongation at break of 6.7%, and flexural strength of 145 MPa. Compared to the cured epoxy polymer, they represented increases of 30.6%, 34.3%, and 38.1%, respectively. The glass transition temperature (Tg) of the ETHP/epoxy composites also increases first and then decreases. A maximum Tg is obtained when ETHP content is 5 wt%. It shifted to 174.9°C from 158.6°C of pure epoxy polymer. The excellent overall performance of ETHP/epoxy composites not only broadens the potential applications of epoxy resins but also provides a novel approach for toughening other resin systems.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100821","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":"Correction to “Multifunctionality of Poly(Vinyl Alcohol) Nanofiber Webs Containing Titanium Dioxide”","authors":"","doi":"10.1002/app.57192","DOIUrl":"https://doi.org/10.1002/app.57192","url":null,"abstract":"<p>K. Lee and S. Lee, “Multifunctionality of Poly(Vinyl Alcohol) Nanofiber Webs Containing Titanium Dioxide,” <i>Journal of Applied Polymer Science</i> 124, no. 5 (2012): 4038–4046, https://doi.org/10.1002/app.34929.</p><p>In Figure 2b, visual artifacts resembling “multiple backtracks” were observed in the EDX spectrum. Upon review, the authors confirmed that these artifacts were not present in the original image of the EDX spectrum. They were introduced during figure compilation due to reduced image resolution. The original high-resolution EDX spectrum is presented below as the corrected Figure 2b. All experimental data and conclusions remain unaffected.</p><p>The authors apologize for this error.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 24","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944713","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":"A Novel 3D-Printed Microfluidic Bioreactor With Electrospun Scaffold Integration as a Platform for Cardiovascular Tissue Engineering","authors":"Andrew P. Johnston,&nbsp;Todd P. Burton,&nbsp;Anthony Callanan","doi":"10.1002/app.57062","DOIUrl":"https://doi.org/10.1002/app.57062","url":null,"abstract":"<p>Cardiovascular diseases are one of the leading causes of global mortality. Treatment methods such as bypass graft operations, while often successful, can fail in cases of systemic disease or compliance mismatch. Tissue engineered vascular grafts may offer a potential solution, by means of an implantable cell-seeded scaffold that can integrate into the graft site. Modifications to the cell culture environment, such as through physical modification of the scaffold structure, or culturing cells in a dynamic fluidic environment, have been shown to alter cellular behavior. Herein, we combine these two approaches by incorporating electrospun polycaprolactone scaffolds consisting of smooth and modified fiber surface topographies within a series of novel 3D printed microfluidic bioreactors. The bioreactors successfully maintained the viability of human umbilical vein endothelial cells over a 24-h period, with the smooth scaffolds in static culture and dimpled scaffolds under dynamic culture indicating the highest cell viability. An increase in stiffness and hydrophilicity of the modified scaffold is also noted in comparison to the scaffold consisting of smooth fibers. These results indicate that both the bioreactor system and the modified electrospun scaffold are capable of inducing variations in cellular response, thus warranting further investigation for the advancement of vascular tissue engineering.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100853","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":"Correction to “Colorimetric Dye-Loaded, Adhesive, and Stretchable Hydrogel Sensor: A Sensitive and Visible H2S Gas Sensing Platform”","authors":"","doi":"10.1002/app.57170","DOIUrl":"https://doi.org/10.1002/app.57170","url":null,"abstract":"<p>\u0000 \u0000 <span>L. Liu</span>, <span>S. Yuan</span>, <span>C. Guan</span>, et al., “ <span>Colorimetric Dye-Loaded, Adhesive, and Stretchable Hydrogel Sensor: A Sensitive and Visible H₂S Gas Sensing Platform</span>,” <i>Journal of Applied Polymer Science</i> <span>142</span>, (<span>2025</span>): e56624, https://doi.org/10.1002/app.56624.\u0000 </p><p>Funding section in the article, <b>“Funding:</b> The authors received no specific funding for this work.” was incorrect. This should have read: “<b>Funding:</b> Beijing Natural Science Foundation (Grant 7234412).”</p><p>We apologize for this error.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 23","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914677","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":"Desalination of Hypersaline Water by Polyvinyl Chloride Mixed Silicon Carbide a Hybrid Multifunctional Nanocoated Membrane","authors":"Mohammad Mujhaid Ali Khan,&nbsp;Nazia Zeeshan,&nbsp;Durgesh Wadhwa,&nbsp;Sharique Ahmad,&nbsp;Manoj Kumar","doi":"10.1002/app.57066","DOIUrl":"https://doi.org/10.1002/app.57066","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, we suggest a novel method that is predicated on monitoring the membrane's electrochemistry, surface atmosphere, and chemical stability. The sol–gel process was used to create the synthetic inorganic nano composite membrane based on PVC. The organic and inorganic matrix boosted the qualities of the membrane such as stability, flexibility, mobility, surface shape, and much more improved the electrochemical properties. It is evident that the preparation and use of the hybrid multifunctional nanocoated membrane depend heavily on surfaces, interfaces, and electrochemical parameters. However, the use of the aforementioned nano composite membrane for desalination of hypersaline water applications will be reflected in the membrane charge density and physicochemical characterization.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100486","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":"Photo-Curable Triazinetrione Composites With Tunable Degradation for Fracture Stabilization and Flexible Thin-Film Applications","authors":"Jorge San Jacinto Garcia,&nbsp;Natalia Sanz del Olmo,&nbsp;Daniel J. Hutchinson,&nbsp;Michael Malkoch","doi":"10.1002/app.57068","DOIUrl":"https://doi.org/10.1002/app.57068","url":null,"abstract":"<p>The standard-of-care for treating complex bone fractures includes metal screws and plates. However, their rigid, pre-shaped geometry, coupled with a lack of patient-specific customization and degradability, often results in post-surgical complications and the need for secondary surgeries. Alternatives that are adaptable, biodegradable, and versatile enough to address these limitations have become a priority for the surgical community. Injectable viscous mixtures that harden on demand into composites present a compelling solution, as they can mimic the mechanical properties of bone and conform to any fracture geometry. One promising example evaluated in preclinical trials is clickable composites based on triazine-2,4,6-trione (TATO)-based allyl and thiol monomers combined with hydroxyapatite fillers. These materials cure via visible light-induced thiol-ene coupling chemistry, providing adequate stiffness and strength for bone healing. However, the lack of degradability in these composites has limited their broader application. To overcome this limitation, we developed a new generation of TATO composites with hydrolytically degradable ester linkages and bioresorbable fillers. Offering exceptional versatility, these advanced materials can be cast into twistable films or injected to form high-strength composites. Hydrolysis testing revealed a 41%–64% increase in mass loss compared to the non-degradable TATO composites, while maintaining a high flexural modulus up to 6.4 GPa and a softening temperature above 45°C, well above body temperature. When evaluated as fracture fixation patches, the degradable composites demonstrated superior performance, including greater load capacity and flexibility, compared to their non-degradable counterparts. By delivering strong mechanical support throughout the bone healing process and seamlessly degrading over time, these composites can indeed pave the way for a new era in orthopedic care, where versatile, biodegradable materials not only address critical clinical challenges but also set a visionary standard for the future of patient-centered surgical solutions.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.57068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100441","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}