Journal of Polymer Science最新文献

{"title":"Thermally Stable Aromatic Monodentate Phosphine Cobalt Complexes: Synthesis, Characterization, and Behavior in Diene Polymerization","authors":"Erbo Liu,&nbsp;Ao Zhang,&nbsp;Xinrui Li,&nbsp;Linzhao Zhou,&nbsp;Meijing Chen,&nbsp;Yanpeng Zhao,&nbsp;Jian Tang,&nbsp;Jing Hua","doi":"10.1002/pol.20251181","DOIUrl":"https://doi.org/10.1002/pol.20251181","url":null,"abstract":"<div>\u0000 \u0000 <p>A series of monodentate phosphine ligands were studied to investigate their effects on the CoCl₂(Ligand)₂-MAO system catalyzing the polymerization of 1,3-butadiene. Aromatic phosphine ligands with varying electronic effects predominantly yield 1,2-structured polybutadiene (PB), while <i>cis</i>-structures are obtained with bulky aromatic phosphines and heteroatom-containing phosphines. For polyisoprene, the polymerization under any cobalt complex condition results in a 1,4/3,4 mixed structure. Single-crystal X-ray diffraction analysis reveals that the tris(4-methoxyphenyl) phosphine complex (<b>Co2</b>) has a distorted tetrahedral structure. Even at 120°C <b>Co2</b> maintains over 85% monomer conversion, making it the most thermally stable monodentate aromatic phosphine cobalt catalyst reported to date. The polymerization results indicate that this series of catalytic systems shows higher activity and molecular weight for 1,3-butadiene polymerization than for isoprene polymerization. The variation in polymerization temperature (0°C–120°C) has little effect on the polymer's regioselectivity, but the stereoselectivity is significantly influenced by temperature. Some monodentate phosphine catalyst systems show moderate to high yields at high temperatures (120°C), demonstrating excellent thermal stability.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1137-1151"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564178","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":"Microphase Separation Behavior of Poly(4-Vinylpyridine)-b-Poly(Styrene)-b-Poly(Ethylene Oxide)-b-Poly(Styrene)-b-Poly(4-Vinylpyridine) Pentablock Terpolymers in Bulk","authors":"Lei Guo,&nbsp;Ruohan Zhang,&nbsp;Junting Xu,&nbsp;Binyang Du","doi":"10.1002/pol.20251217","DOIUrl":"https://doi.org/10.1002/pol.20251217","url":null,"abstract":"<div>\u0000 \u0000 <p>Complex multiblock structures offer unexplored avenues for tailoring self-assembly of block copolymers (BCPs). In this study, the microphase separation behavior of a series of symmetric ABCBA-type pentablock terpolymers, poly(4-vinylpyridine)-<i>b</i>-polystyrene-<i>b</i>-poly(ethylene oxide)-<i>b</i>-polystyrene-<i>b</i>-poly(4-vinylpyridine) (P4VP-<i>b</i>-PS-<i>b</i>-PEO-<i>b</i>-PS-<i>b</i>-P4VP, or V_{\u0000 <i>y</i>\u0000}S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000}V_{\u0000 <i>y</i>\u0000} for short) with various lengths of PS (<i>x</i>) and P4VP (<i>y</i>) blocks in bulk were investigated. Small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) analyses revealed that the microphase separation structures of V_{\u0000 <i>y</i>\u0000}S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000}V_{\u0000 <i>y</i>\u0000} pentablock terpolymers changed from disordered (DIS) to hexagonally packed P4VP cylinders (CYR_V) to lamellae (LAM) and finally to hexagonally packed S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000} cylinders (CYR_OS) with increasing the volume fraction of P4VP (<i>f</i>\u0000 _P4VP). While the corresponding S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000} and V_{\u0000 <i>y</i>\u0000}O₉₀V_{\u0000 <i>y</i>\u0000} triblock copolymers exhibited DIS structures. For V_{\u0000 <i>y</i>\u0000}S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000}V_{\u0000 <i>y</i>\u0000} pentablock terpolymers, the miscibility of PS and PEO blocks made the middle S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000} triblock behave as a “one-block” mixing unit. Due to the large <i>χ</i> value between P4VP and PS blocks, the effective Flory–Huggins interaction parameter (<i>χ</i>\u0000 _eff) between P4VP and the S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000} “one-block” increased with the length (<i>x</i>) of PS block. With <i>x</i> = 6, the LAM phase can be observed in V₂₆S₆O₉₀S₆V₂₆. Furthermore, the microphase separation structures of V_{\u0000 <i>y</i>\u0000}S_{\u0000 <i>x</i>\u0000}O₉₀S_{\u0000 <i>x</i>\u0000}V_{\u0000 <i>y</i>\u0000} pentablock terpolymers exhibited good thermal stability up to 180°C.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1120-1129"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562977","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":"Mechanism-Oriented Reaction Descriptors for Dispersity Prediction in Nitroxide-Mediated Radical Polymerization Considering Mediator Stability","authors":"Tatsuya Mori,&nbsp;Shunsuke Mieda,&nbsp;Koharu Kodama,&nbsp;Tomoyuki Miyao","doi":"10.1002/pol.20250976","DOIUrl":"https://doi.org/10.1002/pol.20250976","url":null,"abstract":"<div>\u0000 \u0000 <p>In recent years, there has been tremendous growth in data-driven approaches in the field of polymer science, mainly using large databases. However, these analyses do not often lead to mechanism-based interpretations, such as validating a hypothesis for a key reaction phenomenon. In this study, quantitative structure–property relationship (QSPR) models for dispersity (<i>Đ</i>) are constructed using reaction representations based on a putative reaction mechanism. These models are built on nitroxide-mediated radical polymerization reaction datasets collected from the literature. The proposed reaction representation consists of 17 descriptors based on the quasi-equilibrium reaction of forming dormant species, including the stability of mediator radicals. The tendency for the decomposition of the mediator radicals is quantified. Excluding an unstable mediator radical based on this descriptor significantly increases the prediction accuracy for a poly(<i>n</i>-butyl acrylate) dataset. Removing reactions proceeding on different reaction paths contributes to more accurate QSPR-based <i>Đ</i> prediction models, and also to clearer model interpretation in light of the mechanism assumption. Additionally, prediction is found to be possible for datasets from different research groups under similar experimental conditions, while no meaningful prediction is achieved for reactions conducted under different experimental conditions and monomer conversion.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1152-1167"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564324","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":"Performance Enhancement of Dynamically Cured ENR/EVA/PP Thermoplastic Vulcanizates via Compatibilization and Rubber-to-Plastic Ratio Optimization","authors":"Azizon Kaesaman,&nbsp;Sareena Sayanai,&nbsp;Charoen Nakason","doi":"10.1002/pol.20250885","DOIUrl":"https://doi.org/10.1002/pol.20250885","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the influence of compatibilizer type and rubber-to-plastic ratio on the performance of dynamically cured epoxidized natural rubber (ENR-25)/ethylene–vinyl acetate (EVA)/polypropylene (PP) thermoplastic vulcanizates (TPVs). Three in-house synthesized reactive compatibilizers, phenolic resin-modified polypropylene (PhHRJ-PP, PhSP-PP), and maleic anhydride-grafted PP (PP-g-MA), were evaluated. Among them, PhHRJ-PP yielded the best performance, achieving a tensile strength of 11.44 MPa, an elongation at break of 295%, and high toughness at the optimal ENR/EVA/PP composition of 30/30/40 (corresponding to a rubber-to-plastic ratio of 60/40, wt%). This composition also demonstrated a refined phase morphology, with rubber domains averaging 1.77 ± 0.27 μm, elevated storage modulus, low tan <i>δ</i>, and enhanced complex viscosity. Additionally, it showed the highest aging resistance, retaining 85.49% of tensile strength after thermal exposure. Solvent resistance and thermal degradation behavior were found to depend on both blend composition and PP crystallinity. These results underscore the critical role of interfacial adhesion, dynamic vulcanization, and morphological control in optimizing TPV performance. The findings provide a valuable framework for designing bio-based, recyclable elastomeric materials suitable for high-performance, mechanically demanding applications.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1212-1228"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565923","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":"Fabrication and Characterization of PVP/PCL Nanofiber-Hydrogel Membranes via Juxtaposed Electrospinning for Wound Dressings","authors":"Ying Wang,&nbsp;Haoyou Jiang,&nbsp;Botian Zhu,&nbsp;Hualin Zhang,&nbsp;Mengmeng Zhao,&nbsp;Yeheng Cao,&nbsp;Fuming Wang,&nbsp;Xuyang Feng,&nbsp;Junru Wang","doi":"10.1002/pol.20250949","DOIUrl":"https://doi.org/10.1002/pol.20250949","url":null,"abstract":"<div>\u0000 \u0000 <p>Wound ulceration induces inflammation, delays tissue repair, and may trigger systemic infections, thereby endangering bodily health. Hydrogel films are capable of accelerating wound healing processes. This study fabricated polyvinylpyrrolidone/polycaprolactone (PVP/PCL) nanofiber-hydrogel membranes via juxtaposed electrospinning, overcoming the limitations of traditional electrospinning techniques. Hydrophilic PVP (15% w/v in ethanol with 0.03% DAS) and hydrophobic PCL (15% w/v in chloroform/<i>N</i>,<i>N</i>-dimethylformamide (CF/DMF) 4:1) were employed, with PVP/PCL ratios precisely regulated. The optimal VC-8/2 (PVP/PCL = 8:2) exhibited excellent performance, featuring a viscosity of 176.5 cp, a smooth, bead-free morphology prior to swelling (diameter: 718.22 ± 142.96 nm), and a twisted structure post-swelling (diameter: 268.71 ± 94.21 nm)—all enabled by optimized solvents and juxtaposed electrospinning that eliminated phase separation. Additionally, the VC-8/2 demonstrated a tensile strength of 1.16 ± 0.10 MPa, an elongation at break of 94.35% ± 5.64%, and a 40% water absorption rate after 12 h. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) confirmed the successful cross-linking of PVP, while CCK-8 assays revealed high L929 cell viability (87.23%–91.44%), exceeding the 85% non-cytotoxic threshold. These biocompatible membranes integrate the exudate absorption capacity of PVP and the mechanical support of PCL, rendering them highly promising for advanced wound dressing applications.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1254-1267"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567462","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":"Repurposing Waste LDPE as a Sustainable Coating for CFRP With Emphasis on UV Durability and Performance","authors":"Marwa Saadeh,&nbsp;Muni Raj Maurya,&nbsp;Mohammad K. Hassan,&nbsp;Mabrouk Ouederni,&nbsp;Mohammad R. Irshidat","doi":"10.1002/pol.20251141","DOIUrl":"https://doi.org/10.1002/pol.20251141","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the potential of utilizing waste low-density polyethylene (LDPE) as a protective coating against UV exposure for carbon fiber reinforced polymer (CFRP). The LDPE and epoxy-coated CFRP samples were subjected to accelerated UV-aging of up to 2000 h. This work simulates the open environment conditions where degradation products remain trapped in the polymer matrix and accelerate photo-oxidation, thereby revealing the true extent of UV-induced damage. Thermogravimetric analysis (TGA) analyses revealed progressive thermal degradation, with epoxy showing a delayed onset of decomposition and LDPE exhibiting decomposition onset after 500 h of UV-aging. LDPE-coated CFRP composites exhibited a steady decline in mechanical properties but retained more than 50% of their initial tensile strength up to 1000 h of UV-aging. Morphological analysis of aged samples revealed increasing surface fragmentation and embrittlement in LDPE-coated samples after 1000 h of UV-aging. The carbonyl index calculated from Fourier Transform Infrared (FTIR) spectra reached ~0.6 after 1000 h of UV-aging, suggesting the onset of extensive photo-oxidative degradation. The results highlight that waste LDPE can serve as a low-cost, moderate-performance alternative coating for CFRP in non-critical construction applications, offering a sustainable route for plastic waste reuse.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1268-1287"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567985","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":"Investigation of the Impact of Graft Compatibilizer Main-Chain Structure on the Properties of PBAT/PLA Composites","authors":"Xiaofeng Liu,&nbsp;Xuanyu Meng,&nbsp;Miao He,&nbsp;Tiejun Ge,&nbsp;Yang Yu,&nbsp;Xiaofeng He,&nbsp;Qi Yue,&nbsp;Bo Wen,&nbsp;Peihan Liu,&nbsp;Ning Liu,&nbsp;Jumeng Yu","doi":"10.1002/pol.20251092","DOIUrl":"https://doi.org/10.1002/pol.20251092","url":null,"abstract":"<div>\u0000 \u0000 <p>Poly(butylene adipate terephthalate) (PBAT) and polylactic acid (PLA) exhibit inherent thermodynamic incompatibility. To enhance the compatibility between the two phases, three kinds of graft compatibilizers with different main-chain structures, named as PBAT-<i>g</i>-VCHO, PLA-<i>g</i>-VCHO, and PBS-<i>g</i>-VCHO, are synthesized by grafting 4-vinyl epoxycyclohexane (VCHO) onto PBAT, PLA, and PBS, respectively, which employs a melt grafting approach and uses diisopropylbenzene peroxide as the initiator. The findings confirmed the successful synthesis of the three compatibilizers, and the water contact angle results showed that each of the three compatibilizers effectively reduced the interfacial tension between the PBAT and PLA phases. Specifically, the three compatibilizers are applied into PBAT/PLA composites, and the influence of the compatibilizer grafting rate and dosage on the properties of composites is discussed. Comparative analyses demonstrated that optimal performance of the composites is achieved with grafting rates of 1.64% for PBAT-<i>g</i>-VCHO, 1.71% for PLA-<i>g</i>-VCHO, and 1.56% for PBS-<i>g</i>-VCHO, corresponding to addition contents of 10%, 7.5%, and 7.5%, respectively. Overall, the results indicated that the PBAT/PLA composite exhibits the best comprehensive performance with the addition of the compatibilizer PBS-<i>g</i>-VCHO with a grafting rate of 1.56% and a content of 7.5%.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1099-1119"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562976","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":"Preparation and Characterization of Colorless Polyimide Films Containing Benzimidazole and Amide Groups Toward Thermally Stable Substrates for Next-Gen Flexible Optoelectronics","authors":"Fangchao Liu,&nbsp;Dandan Li,&nbsp;Yangyi Cai,&nbsp;Guangtao Qian","doi":"10.1002/pol.20251003","DOIUrl":"10.1002/pol.20251003","url":null,"abstract":"<div>\u0000 \u0000 <p>High-performance polyimide (PI) films are highly valued for their exceptional comprehensive properties and are considered promising candidates for industrial production and application as optically transparent polymer materials. In this study, we introduced an asymmetric benzimidazole structure functionalized with amide groups via molecular engineering. The key molecular innovation lay in the synergistic integration of both benzimidazole and amide functionalities within the diamine (ABZ) skeleton. This design incorporated bulky side groups to reduce interchain packing efficiency, which enhanced solubility and processability, while the rigid biphenyl moieties helped offset any potential loss of thermal stability resulting from the disrupted chain packing. The diamine monomer was copolymerized with cyclobutane-1,2,3,4-tetracarboxylic dianhydride and 1,2,4,5-cyclohexane tetracarboxylic dianhydride via a high-temperature one-step method to produce novel PI films. The resulting materials retained high thermal stability (<i>T</i>\u0000 _d5% &gt; 424°C) and demonstrated significantly improved overall performance with low coefficient of thermal expansion (29.5 ppm K⁻¹), high optical transmittance (68% at 400 nm), and high glass transition temperatures (<i>T</i>\u0000 _g &gt; 359°C). They also exhibited excellent mechanical properties (tensile modulus <i>E</i> &gt; 3.5 GPa, tensile strength <i>σ</i> &gt; 137 MPa) and good solubility in common organic solvents. This strategy achieved an optimal balance between optical transparency, thermal stability, and mechanical performance, facilitating the development of high-temperature-suitable CPIs for next-generation flexible electronics.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1089-1098"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333913","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":"Next-Generation Per and Poly-Fluoroalkyl-Free Graphene Oxide Modified Cellulose Ether Charge Separator for Antibiotic Micropollutant Removal and Energy Recovery in Hospital Wastewater-Fed Microbial Fuel Cell","authors":"Aparajita Roy,&nbsp;Sonu Kumar,&nbsp;Kuhelika Das,&nbsp;Amit Kumar,&nbsp;Akio Ebihara,&nbsp;Chin Tsan Wang,&nbsp;Vimal Katiyar","doi":"10.1002/pola.70044","DOIUrl":"https://doi.org/10.1002/pola.70044","url":null,"abstract":"<div>\u0000 \u0000 <p>The increasing prevalence of pharmaceutical pollutants, especially antibiotics like ampicillin, in aquatic environments necessitates novel treatment approaches that integrate pollutant removal with resource recovery. Traditional PFAS-based membranes, such as Nafion, frequently used in microbial fuel cells (MFCs), present environmental concerns due to their persistence and toxicity. This study introduces a graphene oxide (GO)-modified cellulose ether membrane, characterized by antifouling properties, as a PFAS-free alternative, and thoroughly evaluates its dual function of ampicillin elimination and bioelectricity generation from hospital wastewater. Physicochemical characterization revealed that the incorporation of GO improved membrane hydrophilicity and mechanical stability, leading to a 2.53-fold increase in tensile strength compared to pure cellulose ether, while concurrently reducing substrate crossing. In a MFC, the CEGO membrane facilitated increased microbial electroactivity and improved electron transfer, achieving a maximum current density of 86.6 mA c m⁻². This enhanced electrochemical performance, coupled with a columbic efficiency of 59.3%, was succeeded by a substantial ampicillin degradation of 96.2%, thereby underscoring the relationship between optimized proton transport and strengthened microbe-electrode interactions. Furthermore, the membrane exhibited operational stability under high-COD conditions typical of hospital wastewater, indicating considerable structural resilience and potential for extended application in sustainable wastewater treatment and energy recovery.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1168-1185"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564528","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":"Solution Blow Spinning Complex Coacervates: Effect of Spinning Parameters on Morphology","authors":"Allison Courtenay,&nbsp;Matthew Mastowski,&nbsp;Whitney C. Blocher McTigue","doi":"10.1002/pol.20250970","DOIUrl":"https://doi.org/10.1002/pol.20250970","url":null,"abstract":"<p>Processing complex coacervates has become a topic of increasing consideration. Herein, the use of solution blow spinning (SBS) of complex coacervates into fiber mats as another processing method is discussed. Complexes of poly(styrene sulfonate) and poly(diallyldimethylammonium chloride) at 50/50 charge fraction in a KBr solution are spun with an in-house-built SBS apparatus at pressures of 25–45 psig, box wall to substrate distances of 5–20 cm, salt concentrations of 1.6–1.7 M KBr, polymer concentrations of 0.1–0.25 M, and run speeds of 0.2–3 mL/min. The results show that increased fiber density and decreased fiber diameter dispersion occur with decreasing distance to the substrate. An increase in fiber layering with decreasing run speed and improved fiber uniformity during the spinning of pre-loaded samples is observed. Fiber diameter averages ranged from approximately 7–50 μm, with narrower diameter distributions and denser mat formation at shorter spray distances (5–10 cm). Optimal morphology occurred near 30 psig and 1.7 M KBr with a 5 cm spraying distance, where fibers were most uniform and densely packed. This research lays the groundwork for complex coacervate processing via solution blow spinning, highlighting several parameters that influence the resulting fiber morphology.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1202-1211"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250970","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565678","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}