Journal of Applied Polymer Science最新文献

Sulfur-Rich Vitrimers From Oligosulfides and Epoxy Cross-Linkers With Tunable Mechanical Properties and Adhesive Performance 由低硫化物和环氧交联剂合成的富硫玻璃聚合体，具有可调的机械性能和粘合性能

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-17 DOI: 10.1002/app.71516

Weishu Yang, Pinxian Gao, Wenfu Bai, Jie Li, Weiwei Huan, Zhen Zhang

{"title":"Sulfur-Rich Vitrimers From Oligosulfides and Epoxy Cross-Linkers With Tunable Mechanical Properties and Adhesive Performance","authors":"Weishu Yang, Pinxian Gao, Wenfu Bai, Jie Li, Weiwei Huan, Zhen Zhang","doi":"10.1002/app.71516","DOIUrl":"https://doi.org/10.1002/app.71516","url":null,"abstract":"<div>\u0000 \u0000 Sulfur-rich vitrimers have attracted increasing interest due to their dynamic covalent networks and potential in sustainable materials. In this work, sulfur-based vitrimer networks were constructed via a two-step strategy by combining hydroxyl-functionalized oligosulfides with epoxy cross-linkers. The oligosulfides, containing dynamic oligosulfide (–Sx–) linkages, were synthesized through the oligomerization of elemental sulfur with cyclic disulfides, followed by cross-linking with bisphenol A diglycidyl ether or diethylene glycol diglycidyl ether in the presence of imidazole. By tuning the type and loading of epoxy cross-linkers, the resulting networks exhibit a wide range of mechanical properties, from rigid thermosets to soft and extensible materials, with tensile strengths up to 12.85 ± 2.73 MPa and elongations at break up to 44.40% ± 5.01%. In addition, these vitrimers demonstrate effective adhesive performance, achieving lap-shear strengths of up to 6.05 ± 0.99 MPa on steel substrates. This work provides a straightforward and versatile strategy for designing sulfur-rich vitrimer materials with tunable mechanical behavior and promising potential in structural adhesive applications.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177485","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}

引用次数: 0

4D Printing of a Novel Fully Biodegradable Plastic: Poly(Propylene Carbonate Phthalate) (PPC-P) 一种新型完全可生物降解塑料：聚邻苯二甲酸丙酯（PPC-P）的4D打印

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-09 DOI: 10.1002/app.71501

Siyuan Li, Jizhi Ai, Min Xiao, Dongmei Han, Sheng Huang, Shuanjin Wang, Yuezhong Meng

{"title":"4D Printing of a Novel Fully Biodegradable Plastic: Poly(Propylene Carbonate Phthalate) (PPC-P)","authors":"Siyuan Li, Jizhi Ai, Min Xiao, Dongmei Han, Sheng Huang, Shuanjin Wang, Yuezhong Meng","doi":"10.1002/app.71501","DOIUrl":"https://doi.org/10.1002/app.71501","url":null,"abstract":"<div>\u0000 \u0000 4D printing, an emerging manufacturing technique incorporating a temporal dimension to enable shape/property evolution under stimuli, has gathered significant interest. However, biodegradable polymers suitable for low-cost fused deposition modeling (FDM)-based 4D printing that simultaneously combine low warpage, balanced mechanical strength, and stable thermal-responsive shape memory performance are still scarce. CO2-incorporated aliphatic-aromatic copolyesters tailored for low-cost FDM-based 4D printing have not been systematically investigated. This study investigates the FDM process optimization, performance characterization, and 4D printing potential of a novel biodegradable polymer, poly-(propylene carbonate phthalate) (PPC-P). Key FDM parameters were determined as printing temperature 170°C–190°C, printing speed 40–50 mm/s, layer height 0.1–0.2 mm. The raster angle significantly affects mechanical performance: specimens printed at 90° raster angle achieve a maximum tensile strength of 33.1 MPa. Single-edge-notch three-point-bending tests confirm that intralayer bonding (G\u0000 fe = 2.62 kJ/m2) is superior to interlayer bonding (G\u0000 fe = 1.67 kJ/m2). The high-precision FDM fabrication of PPC-P was successfully achieved. Crucially, the printed specimens exhibit satisfactory thermally responsive shape memory effect: complete shape recovery (R\u0000 \u0000 r\u0000 reached 96.5%) occurs rapidly in 45°C water bath. This work provides a promising new biodegradable material option for FDM based 4D printing, with applications in temperature sensors and soft robotics.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177148","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}

引用次数: 0

High Performance Polylactic Acid/Boron Nitride Thermal Conductive Composite Based on Chaotic Field Melt Extrusion 基于混沌场熔融挤压的高性能聚乳酸/氮化硼导热复合材料

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-11 DOI: 10.1002/app.71511

Lingcao Tan, Yangsen Liu, Qi Gao, Wenjun Tang, Hongrui Huang, Jiarong Huang, WenHua Xu, Shuping Xiao, Qiongyao Wang, Huiwen Yu, Baiping Xu

{"title":"High Performance Polylactic Acid/Boron Nitride Thermal Conductive Composite Based on Chaotic Field Melt Extrusion","authors":"Lingcao Tan, Yangsen Liu, Qi Gao, Wenjun Tang, Hongrui Huang, Jiarong Huang, WenHua Xu, Shuping Xiao, Qiongyao Wang, Huiwen Yu, Baiping Xu","doi":"10.1002/app.71511","DOIUrl":"https://doi.org/10.1002/app.71511","url":null,"abstract":"<div>\u0000 \u0000 Polylactic acid/hexagonal boron nitride (PLA/h-BN) thermal conductive composites hold broad application prospects owing to their electrical insulation and biodegradability. However, the conventional twin-screw extruder (TSE) based on shear fields struggles to achieve satisfactory in situ exfoliation of h-BN and tends to induce severe degradation of the PLA. This paper employed novel perturbation ring elements (PREs) to modify a dual-speed nontwin screw extruder (NTSE) based on a chaotic field for the large-scale preparation of high-performance PLA/h-BN thermal conductive composite. The results indicate that compared with TSE, NTSE exhibited shorter residence times and a narrower residence time distribution for the material, while the mixing index was significantly improved, which can achieve significantly better in situ exfoliation, dispersion, and distribution of h-BN in the presence of a lower degradation degree of PLA. Moreover, after the NTSE was further modified with PRE, this phenomenon became more pronounced. Compared with those prepared by TSE, PLA/h-BN prepared via NTSE-PRE exhibited in-plane and through-plane thermal conductivities increased by 26.6% and 16.9%, respectively, alongside intrinsic viscosity and weight-average molecular weight elevated by 21.5% and 20.0%, while the Young's modulus after annealing increased by 11.5%. This work provides a novel approach for the large-scale preparation of biodegradable polymer-based thermally conductive composites.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177193","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}

引用次数: 0

Chain Microstructure and Phase Behavior of Two Impact Copolymer Polypropylene With Similar Stiffness and Different Toughness: The Key Role of EbP Microphase Separation 两种刚度相近韧性不同的冲击共聚物聚丙烯的链结构和相行为：EbP微相分离的关键作用

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-11 DOI: 10.1002/app.71508

Yanfei Ma, Chao Jiang, You Ge, Yanjun An, Lingling Zhang, Junpeng Ma, Binbo Jiang, Jianping Zhang, Jingyuan Sun, Yao Yang, Jingdai Wang, Yongrong Yang

{"title":"Chain Microstructure and Phase Behavior of Two Impact Copolymer Polypropylene With Similar Stiffness and Different Toughness: The Key Role of EbP Microphase Separation","authors":"Yanfei Ma, Chao Jiang, You Ge, Yanjun An, Lingling Zhang, Junpeng Ma, Binbo Jiang, Jianping Zhang, Jingyuan Sun, Yao Yang, Jingdai Wang, Yongrong Yang","doi":"10.1002/app.71508","DOIUrl":"https://doi.org/10.1002/app.71508","url":null,"abstract":"<div>\u0000 \u0000 Impact polypropylene copolymer (IPC) is widely used commercially. Ethylene–propylene blocky copolymer (EbP) boosts IPC compatibility at the interface to realize an excellent rigidity-toughness balance, but the impact of its complex distribution on IPC multiphase properties is rarely studied. In this work, two industrial resins (Samples A and B) with similar flexural modulus but significantly different impact strength were analyzed for chain microstructure and copolymer distribution. Combined atomic force microscopy-infrared (AFM-IR), fractionation, chain-structure, and thermal analyses suggest that an EbP-enriched EP-copolymer interphase is preferentially formed in Sample A. In contrast, the stronger crystallization tendency of B100 (the 100°C elution fraction of Sample B) favors premature microphase separation and redistribution of the EbP fraction before crystallization of the isotactic polypropylene matrix, resulting in ethylene-containing copolymer-rich regions in both the dispersed phase and selected locations within the continuous PP phase. This less interface-confined distribution may weaken the compatibilizing effect of EbP and contribute to the poorer mechanical properties of Sample B. The lower molecular weight (Mw) and ethylene content of B100 facilitate the mobility, rearrangement, and crystallization of propylene segments. This work elucidates how the molecular characteristics and crystallization behavior of EbP influence its interfacial distribution and, consequently, IPC compatibility and toughness.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177194","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}

引用次数: 0

Visualizing Crystallization and Phase-Separated Morphology in PBAT/PLA Blends Using an AIE Fluorescent Probe 用AIE荧光探针观察PBAT/PLA共混物的结晶和相分离形态

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-08 DOI: 10.1002/app.71502

Yaqian Yang, Chunyan Luo, Lukai Bai, Haibo Che, Jinrong Li, Xiaoling Niu, Weixing Chen

{"title":"Visualizing Crystallization and Phase-Separated Morphology in PBAT/PLA Blends Using an AIE Fluorescent Probe","authors":"Yaqian Yang, Chunyan Luo, Lukai Bai, Haibo Che, Jinrong Li, Xiaoling Niu, Weixing Chen","doi":"10.1002/app.71502","DOIUrl":"https://doi.org/10.1002/app.71502","url":null,"abstract":"<div>\u0000 \u0000 Amino-modified tetraphenylethylene (TPE), an aggregation-induced emission (AIE) fluorescent probe, was employed to investigate crystallization and phase separation of thermodynamically immiscible biodegradable poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blends, whose interfacial and crystalline structures govern macroscopic properties but are hard to visualize via conventional methods. Differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) reveal that flexible PBAT segments enhance PLA chain mobility and crystallinity, whereas TPE restricts chain motion of both components and suppresses crystallization in neat homopolymers and their blends. Fluorescence microscopy confirms TPE preferentially accumulates in the PLA phase and enriches at the PLA/PBAT interface to form an interphase, enabling direct visualization of phase separation morphology. Thermogravimetric analysis (TGA) shows TPE reduces polyester chain entanglement and lowers the maximum thermal decomposition temperature of both phases. Scanning electron microscopy (SEM) of tensile-fractured surfaces indicates interfacially enriched TPE reduces interfacial tension and improves adhesion, but inhibits the debonding-cavitation toughening mechanism, decreasing tensile strength and elongation at break. Fluorescence intensity positively correlates with blend crystallinity, as rigid crystalline regions confine TPE intramolecular rotation. This work provides an intuitive in situ visualization strategy for correlating interfacial structure, crystallization and, performance of biodegradable polyester blends via AIE probes.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177415","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}

引用次数: 0

Polymer-Based Antibacterial Hemostatic Sponges: Modification Strategies, Antibacterial Mechanisms, and Clinical Translation 高分子抗菌止血海绵：修饰策略、抗菌机制和临床转化

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-23 DOI: 10.1002/app.71544

Lele Shang, Yiming Qi, Kangle Wang, Hongqiang Wang, Mengqi Guo, Xiaoxia Fan

{"title":"Polymer-Based Antibacterial Hemostatic Sponges: Modification Strategies, Antibacterial Mechanisms, and Clinical Translation","authors":"Lele Shang, Yiming Qi, Kangle Wang, Hongqiang Wang, Mengqi Guo, Xiaoxia Fan","doi":"10.1002/app.71544","DOIUrl":"https://doi.org/10.1002/app.71544","url":null,"abstract":"In trauma emergencies, rapid hemostasis and effective infection control are critical strategies to reduce mortality, as uncontrolled bleeding and infection remain the primary causes of early death in trauma patients. Antibacterial hemostatic sponges, as a class of promising biomaterials, have been extensively investigated and clinically applied over the past decade, which may provide simultaneous control of bleeding and local bacterial burden, and may contribute to improved wound management. This review systematically summarizes recent advances in two major categories of polymeric hemostatic sponges: those with intrinsic antibacterial activity derived from the inherent properties of polymer matrices, and polymer-based sponges functionalized with exogenous antibacterial agents. We focus on elaborating their fabrication strategies, optimized component formulations, in vitro and in vivo antibacterial efficacy, hemostatic performance, and biological performance, including hemocompatibility, cytotoxicity, and tissue compatibility. Moreover, we further discuss the current challenges and bottlenecks faced by such materials, such as the trade-off between high antibacterial activity and good biocompatibility, insufficient mechanical strength in wet environments, and lack of long-term antibacterial durability. This work aims to provide comprehensive insights and theoretical guidance for the rational design and development of next-generation high-performance antibacterial hemostatic sponges for clinical translation.","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.71544","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177699","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}

引用次数: 0

Polydimethylsiloxane-Based Composites: A Review of Design, Characterization, and Emerging Applications 聚二甲基硅氧烷基复合材料：设计、表征和新兴应用综述

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-16 DOI: 10.1002/app.71523

Ravinder Kaur, Karanbir Singh, Rajeev Mehta

{"title":"Polydimethylsiloxane-Based Composites: A Review of Design, Characterization, and Emerging Applications","authors":"Ravinder Kaur, Karanbir Singh, Rajeev Mehta","doi":"10.1002/app.71523","DOIUrl":"https://doi.org/10.1002/app.71523","url":null,"abstract":"Polydimethylsiloxane (PDMS) is a widely used silicone elastomer owing to its flexibility, chemical inertness, optical transparency, and biocompatibility. However, its relatively low mechanical strength, poor thermal and electrical conductivity, and hydrophobic surface limit its performance in advanced applications. This review provides a comprehensive overview of recent strategies for enhancing PDMS through nanocomposites, particle- and fiber-reinforced composites, surface modification, polymer blending, elastomeric hybridization, and elemental doping. The effects of these approaches on the mechanical, thermal, electrical, optical, and interfacial properties of PDMS are critically discussed. Boron nitride and ceramic hybrid fillers increase thermal conductivity from approximately 0.15 to 0.60–1.2 W m−1 K−1, while silica nanoparticles and fiber reinforcements improve tensile strength by 20%–50%, depending on filler type and loading. Carbon-based conductive fillers enhance electrical conductivity by several orders of magnitude, enabling applications in flexible electronics and strain sensing. Surface treatments such as oxygen plasma and UV-ozone reduce the water contact angle from over 100° to below 20°–30°, improving wettability and interfacial adhesion for microfluidic and biomedical devices. Overall, rational composite engineering enables precise tailoring of PDMS properties, establishing PDMS composites as versatile multifunctional materials for healthcare, flexible electronics, energy systems, and other advanced engineering applications.","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.71523","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177275","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}

引用次数: 0

Synthesis and Characterization of Sodium Alginate/Graphene Oxide Hydrogel Crosslinked by Cu2+ for Curcumin Delivery Cu2+交联海藻酸钠/氧化石墨烯水凝胶的合成与表征

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-09 DOI: 10.1002/app.71510

Nguyen Ngoc Yen, Huynh Phuc Bao Khang, Nguyen Thai Hai Nhan, Bien Cong Trung, Nguyen Thi Bich Thuyen, Doan Van Hong Thien

{"title":"Synthesis and Characterization of Sodium Alginate/Graphene Oxide Hydrogel Crosslinked by Cu2+ for Curcumin Delivery","authors":"Nguyen Ngoc Yen, Huynh Phuc Bao Khang, Nguyen Thai Hai Nhan, Bien Cong Trung, Nguyen Thi Bich Thuyen, Doan Van Hong Thien","doi":"10.1002/app.71510","DOIUrl":"https://doi.org/10.1002/app.71510","url":null,"abstract":"<div>\u0000 \u0000 A multifunctional sodium alginate/graphene oxide/copper ion (SA/GO/Cu2+) hydrogel was developed as a controlled curcumin delivery system with enhanced physicochemical stability and antibacterial activity. The hydrogel network was formed via ionic coordination between alginate carboxylate groups and Cu2+ ions, combined with hydrogen bonding and interfacial interactions involving graphene oxide. Key formulation parameters were systematically optimized, and the optimal hydrogel (4 wt% SA, 0.03 M Cu2+, 0.6 mg mL−1 GO, 90 min gelation) exhibited a balanced combination of high swelling capacity, improved water retention, and enhanced mechanical strength. Structural and physicochemical characterization (XRD, FTIR, SEM–EDS mapping, and DSC) confirmed the homogeneous incorporation of GO and Cu2+ and the formation of a reinforced, predominantly amorphous network with improved thermal stability. The optimized hydrogel exhibited high curcumin loading efficiency at an initial curcumin concentration of 150 ppm and sustained, concentration-dependent release behavior, which followed an anomalous (non-Fickian) diffusion mechanism. Moreover, the curcumin-loaded SA/GO/Cu2+ hydrogel showed pronounced antibacterial activity against \u0000 Staphylococcus aureus\u0000 and \u0000 Pseudomonas aeruginosa\u0000 . These results highlight the potential of the SA/GO/Cu2+ hydrogel as a multifunctional platform for controlled drug delivery and antibacterial wound dressing applications.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177146","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}

引用次数: 0

Selective Separation of 152+ 154Eu From Binary Liquid Waste Solution Using Polymeric Composite Crown Ether: Synthesis, Characterization, and Kinetic Studies 聚合复合冠醚从二元废液中选择性分离152+ 154Eu：合成、表征及动力学研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-08 DOI: 10.1002/app.71505

Heba M. M. Abo-Ehdahab, Mahmoud Goneam Hamed, W. F. Zaher, S. I. El-Dessouky, Emad Hassan Borai

{"title":"Selective Separation of 152+\u0000 154Eu From Binary Liquid Waste Solution Using Polymeric Composite Crown Ether: Synthesis, Characterization, and Kinetic Studies","authors":"Heba M. M. Abo-Ehdahab, Mahmoud Goneam Hamed, W. F. Zaher, S. I. El-Dessouky, Emad Hassan Borai","doi":"10.1002/app.71505","DOIUrl":"https://doi.org/10.1002/app.71505","url":null,"abstract":"<div>\u0000 \u0000 A crown ether-functionalized polymeric composite, PSSS(AA-18C6), was synthesized by γ-radiation-induced polymerization for the selective separation of Eu3+ and Co2+ from radioactive liquid waste. The composite was prepared by copolymerizing sodium styrene sulfonate and acrylic acid in the presence of 18-crown-6 and N,N′-methylenediacrylamide. Optimum synthesis conditions were obtained at an irradiation dose of 20 kGy and 2 wt% crown ether. FTIR, SEM, and TGA confirmed the successful incorporation of 18-crown-6 into a porous, thermally stable crosslinked polymer network. Adsorption performance was strongly pH-dependent, with maximum uptake at pH 5 and equilibrium attained within 90 min. Kinetic data were best described by the pseudo-second-order model (R\u0000 2 = 0.99), indicating that adsorption was governed by interactions with the available functional sites. Maximum adsorption capacities reached 115 and 60 mg g−1 for Eu3+ and Co2+, respectively, demonstrating the superior affinity of the composite toward Eu3+. Complete regeneration was achieved using EDTA, confirming excellent reusability. Application to simulated radioactive liquid waste containing 152+154Eu and 60Co resulted in removal efficiencies of 94% and 47%, respectively, demonstrating the potential of PSSS(AA-18C6) as an efficient and selective adsorbent for radionuclide separation and radioactive wastewater treatment.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177351","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}

引用次数: 0

High-Resilience and Anti-Shrinkage PBAT Foams Enabled by TPU Elastomer Blending and Epoxy-Based Chain Extender Compatibilization TPU弹性体共混和环氧基扩链剂增容制备高回弹抗收缩PBAT泡沫

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-14 Epub Date: 2026-09-10 DOI: 10.1002/app.71513

Weiye Xu, Yuying Han, Kejian Cui, Hongfu Zhou, Xu Wang, Xiaoling Zang, Yafeng Deng, Xiangdong Wang

{"title":"High-Resilience and Anti-Shrinkage PBAT Foams Enabled by TPU Elastomer Blending and Epoxy-Based Chain Extender Compatibilization","authors":"Weiye Xu, Yuying Han, Kejian Cui, Hongfu Zhou, Xu Wang, Xiaoling Zang, Yafeng Deng, Xiangdong Wang","doi":"10.1002/app.71513","DOIUrl":"https://doi.org/10.1002/app.71513","url":null,"abstract":"<div>\u0000 \u0000 Biodegradable poly(butylene adipate-co-terephthalate) (PBAT) foams are sustainable alternatives to petroleum-based foams, yet their application is limited by poor resilience and severe post-foaming shrinkage. Herein, we report a facile and effective strategy to fabricate high-resilience, anti-shrinkage PBAT foams by blending with thermoplastic polyurethane (TPU) elastomer and incorporating an epoxy-based chain extender (CE) as a reactive compatibilizer. The epoxy groups of CE react with the terminal carboxyl and hydroxyl groups of both PBAT and TPU, generating in situ graft copolymers that significantly enhance interfacial adhesion. Rheological analysis confirms that the compatibilized blends exhibit effectively improved melt strength and elasticity. Benefiting from the combined effect of TPU toughening and CE compatibilization, the resultant PBAT/CE/TPU foam achieves a ball rebound of 52%, representing a 44.4% improvement over neat PBAT foam, and its 24 h shrinkage is remarkably reduced to just 5.3%. Scanning electron microscopy reveals a homogeneous cellular structure with well-dispersed TPU domains embedded in the PBAT matrix. This work offers a promising route to high-performance biodegradable foams for cushioning packaging, sports footwear, and automotive interiors, where resilience and dimensional stability are critically demanded.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 44","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177418","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}

引用次数: 0