Journal of Polymer Science最新文献_第3页

Nanostructured Hybrid Binders: Enhancing HTPB–Polyurethane Elastomers Through Precise Q-Siloxane Grafting 纳米结构杂化粘合剂：通过精确q -硅氧烷接枝增强htpb -聚氨酯弹性体

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-06-30 DOI: 10.1002/pola.70242

Noel C. Migliaccio, Nathan J. Weeks, Scott T. Iacono

{"title":"Nanostructured Hybrid Binders: Enhancing HTPB–Polyurethane Elastomers Through Precise Q-Siloxane Grafting","authors":"Noel C. Migliaccio, Nathan J. Weeks, Scott T. Iacono","doi":"10.1002/pola.70242","DOIUrl":"https://doi.org/10.1002/pola.70242","url":null,"abstract":"<div>\u0000 \u0000 <p>The strategic synthesis of polyhedral oligomeric silsesquioxane (POSS) functionalized hydroxyl-terminated polybutadiene (gHTPB) and its integration into segmented polyurethane (PU) elastomers is reported. A two-step platinum-catalyzed hydrosilylation protocol was developed, utilizing precise equivalents of 1-octene to partially functionalize octakis(dimethylsiloxy)silsesquioxane (Q<sub>8</sub>M<sub>8</sub>\u0000 <sup>H</sup>) and isolate the mono-functional intermediate Q<sub>8</sub>M<sub>7</sub>\u0000 <sup>O</sup>M<sub>1</sub>\u0000 <sup>H</sup>. This intermediate was subsequently grafted onto the vinyl pendants of an HTPB backbone, facilitating the high-fidelity incorporation of the inorganic POSS cages while maintaining terminal hydroxyl functionality. Subsequent curing with isophorone diisocyanate (IPDI) yielded a series of nanostructured PU hybrid copolymers and terpolymers. This methodology provides a robust route for tailoring the inorganic content and architecture of liquid rubber pre-polymers, offering a versatile platform for the development of high-performance elastomeric binders with enhanced thermal and rheological properties.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3420-3426"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754265","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

Effect of Precursor Solvent on the Occurrence of Stereocomplex Crystallization in Electrospun Polylactide Fibers 前驱体溶剂对静电纺聚乳酸纤维中立体络合物结晶发生的影响

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-07-03 DOI: 10.1002/pola.70251

Hsin-Yu Lin, Chao-Ling Yao, Chieh-Tsung Lo

{"title":"Effect of Precursor Solvent on the Occurrence of Stereocomplex Crystallization in Electrospun Polylactide Fibers","authors":"Hsin-Yu Lin, Chao-Ling Yao, Chieh-Tsung Lo","doi":"10.1002/pola.70251","DOIUrl":"https://doi.org/10.1002/pola.70251","url":null,"abstract":"<div>\u0000 \u0000 <p>We conducted electrospinning to fabricate poly(<span>l</span>-lactide) (PLLA)/poly(<span>d</span>-lactide) (PDLA) fibers from chloroform (CF)/pyridine and CF/2,2,2-trifluoroethanol (TFE) solutions. The effects of the electrospinning solvent and spatial confinement on the stereocomplex crystallization of the electrospun fibers were investigated. Thermal treatment of PLLA/PDLA fibers prepared using CF/pyridine resulted in the coexistence of homocrystals (HCs) and stereocomplex crystals (SCs), with SCs being predominant. This phenomenon was attributable to the uniform dispersion of polymer chains in CF/pyridine, which reduced chiral complementary pairing, resulting in the formation of HCs and SCs. By contrast, dissolving PLLA/PDLA in CF/TFE caused the pairing of PLLA and PDLA chains. Electrospinning with CF/TFE facilitated stereocomplexation, leading to the development of SCs. The degree of confinement did not affect the occurrence of stereocomplexation. However, fibers with a larger diameter provided a larger internal space for chain movement, resulting in a larger number of crystal nuclei. Thus, the crystallite size decreased but the crystallinity increased. The crystal development in small-diameter fibers was strongly confined, which reduced the crystallinity but increased the crystallite size. The findings of this study can be used as a reference for controlling stereocomplex crystallization and fabricating fibers with desirable properties.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3492-3505"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752473","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

Acid Sulfite Pulping of Hemp: Effects of Processing Conditions on Lyocell Pulp Quality 麻酸亚硫酸盐制浆：工艺条件对莱赛尔纸浆品质的影响

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-06-26 DOI: 10.1002/pola.70228

Lelia Lawson, Bernardo A. Souto, Wade Chute, Patricia I. Dolez

{"title":"Acid Sulfite Pulping of Hemp: Effects of Processing Conditions on Lyocell Pulp Quality","authors":"Lelia Lawson, Bernardo A. Souto, Wade Chute, Patricia I. Dolez","doi":"10.1002/pola.70228","DOIUrl":"https://doi.org/10.1002/pola.70228","url":null,"abstract":"<p>Industrial hemp is a renewable lignocellulosic feedstock with strong potential for regenerated cellulose fibers such as lyocell manmade cellulosic fibers (L-MMCF). Production requires pulps with high α-cellulose content, low residual lignin, and sufficient intrinsic viscosity (IV) to ensure dissolution in N-methylmorpholine N-oxide and stable fiber formation. While acid sulfite (AS) pulps historically supported viscose manufacturing due to high cellulose accessibility, alkaline pulps now dominate industrial production because of scalability and operational efficiency. This study systematically evaluates applicability and limitations of AS pulping for hemp-derived feedstocks by examining effects of pH, liquor-to-solid ratio, temperature, and pulping time on lignin removal, α-cellulose retention, and IV. Feedstock influences were assessed by comparing bast and hurd fractions as well as decorticated and mechanically disrupted bast fibers, and AS pulps were benchmarked against soda pulps. AS pulping increased apparent α-cellulose through preferential removal of non-cellulosic components but consistently retained higher lignin levels than soda pulps. Further delignification reduced IV, constraining dissolving pulp quality. Soda pulps achieved lower lignin while maintaining α-cellulose and IV within ranges suitable for L-MMCF spinning. Overall, although AS pulping is historically associated with enhanced cellulose accessibility, the AS conditions examined here did not meet the combined lignin and IV requirements.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3364-3381"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.70228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754253","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

A Naphthyl-Containing Alkoxyamine Initiator Enabling Controlled Methacrylate Polymerization Under Mild Conditions 一种能在温和条件下可控聚合甲基丙烯酸酯的含萘烷氧胺引发剂

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-07-02 DOI: 10.1002/pola.70252

Guobin Lin, Yongyu Hou, Mengting Song, Wangchuan Xiao, Deshu Cheng, Juxiang Luo

{"title":"A Naphthyl-Containing Alkoxyamine Initiator Enabling Controlled Methacrylate Polymerization Under Mild Conditions","authors":"Guobin Lin, Yongyu Hou, Mengting Song, Wangchuan Xiao, Deshu Cheng, Juxiang Luo","doi":"10.1002/pola.70252","DOIUrl":"https://doi.org/10.1002/pola.70252","url":null,"abstract":"<div>\u0000 \u0000 <p>Nitroxide-mediated polymerization (NMP) is a powerful technique, yet achieving precise control over methacrylic esters remains challenging. A novel alkoxyamine initiator, 3-(((2-cyanopropan-2-yl)oxy)(cyclohexyl)amino)-2,2-dimethyl-3-naphthylpropanenitrile (CNDN), featuring bulky naphthyl group, was synthesized via a three-step route (Schiff base reduction, Oxone oxidation, and radical coupling). This alkoxyamine enables well-controlled polymerization of methyl methacrylate (MMA) at 80°C with dispersities below 1.45. The polymerization follows first-order kinetics, and the molecular weight increases linearly with conversion. The high steric hindrance suppresses bimolecular termination, ensuring excellent end-group fidelity and successful chain extension with MMA, ethyl methacrylate, and styrene. Notably, CNDN also mediates controlled MMA polymerization without deoxygenation. This work presents an efficient initiator for controlled methacrylate polymerization under mild conditions and introduces a novel synthetic strategy that could enable general access to structurally diverse alkoxyamines. The resulting naphthyl-terminated polymers hold promise for fluorescent labeling, optical materials, and nanoparticle dispersants.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3462-3470"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752423","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

Flexural Performance and Morphological Characterization of Graphene Nanoparticle-Reinforced Polylactic Acid (PLA) Nanocomposites 纳米石墨烯增强聚乳酸（PLA）纳米复合材料的弯曲性能和形态表征

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-07-01 DOI: 10.1002/pola.70243

Ahmet Saylık, Ertan Kösedağ

{"title":"Flexural Performance and Morphological Characterization of Graphene Nanoparticle-Reinforced Polylactic Acid (PLA) Nanocomposites","authors":"Ahmet Saylık, Ertan Kösedağ","doi":"10.1002/pola.70243","DOIUrl":"https://doi.org/10.1002/pola.70243","url":null,"abstract":"<p>In this study, the flexural behavior and microstructural characteristics of pure polylactic acid (PLA) and graphene nanoparticle (GNP)-reinforced PLA composites produced via melt processing were systematically investigated. Composite filaments containing different GNP weight fractions (0.4, 0.8, 1.2, and 1.6 wt%) were fabricated through controlled mixing and extrusion and subsequently processed into test specimens using additive manufacturing. The flexural response revealed that increasing graphene content led to a gradual reduction in strength, stiffness, and energy absorption capacity, typically in the range of 10%–20%; however, this behavior was governed primarily by the dispersion quality within the matrix rather than filler content alone. While relatively uniform distributions were observed at lower loadings, higher graphene contents promoted particle agglomeration, interlayer discontinuities, and weakened interfacial bonding, thereby limiting effective load transfer. Morphological analyses confirmed that the mechanical performance is directly controlled by microstructural integrity, particularly, the dispersion state of graphene and the continuity of interlayer bonding. Overall, the results demonstrate that optimizing graphene-reinforced PLA systems requires not only controlling filler content but, more critically, maintaining a homogeneous microstructure.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3427-3441"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.70243","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752541","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

Regulation of Thermal Degradation and Char Evolution of Polypropylene by Core–Shell MF@β-CD and Amino-Modified Attapulgite 核壳MF@β-CD和氨基改性凹凸棒石对聚丙烯热降解和成焦的调控

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-07-06 DOI: 10.1002/pola.70260

Jiangtao Guo, Hongxiang Ou, Wenqian Zhou, Honglai Xue, Fang Zhu, Weikang Liu

{"title":"Regulation of Thermal Degradation and Char Evolution of Polypropylene by Core–Shell MF@β-CD and Amino-Modified Attapulgite","authors":"Jiangtao Guo, Hongxiang Ou, Wenqian Zhou, Honglai Xue, Fang Zhu, Weikang Liu","doi":"10.1002/pola.70260","DOIUrl":"https://doi.org/10.1002/pola.70260","url":null,"abstract":"<div>\u0000 \u0000 <p>In this work, a core–shell flame retardant (MF@β-CD) was prepared by coating β-cyclodextrin (β-CD) with melamine-formaldehyde (MF) resin through in situ polymerization. Amino-functionalized attapulgite (ATP-NH<sub>2</sub>) was also prepared via silane modification. MF@β-CD and ATP-NH<sub>2</sub> were incorporated with piperazine pyrophosphate (PAPP) to fabricate flame-retardant PP composites through melt blending. The incorporation of MF@β-CD and ATP-NH<sub>2</sub> improved the fire performance and thermal stability of PP composites. The PP composite containing the MF@β-CD/ATP-NH<sub>2</sub> system exhibited a limiting oxygen index (LOI) of 33.8% and achieved a UL-94 V-0 rating. Compared with neat PP, the peak heat release rate and total smoke production decreased by 91.9% and 87.7%, respectively. Thermal analysis and char characterization suggested that the MF@β-CD/ATP-NH<sub>2</sub> system promoted the formation of a more continuous and stable char layer during combustion. The MF shell contributed to improved interfacial compatibility between β-CD and the PP matrix, while ATP-NH<sub>2</sub> helped maintain the integrity of the char structure. This work provides a feasible approach for improving the fire safety and condensed-phase stability of PP using bio-based flame-retardant components.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3506-3520"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752835","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

Cover Image, Volume 64, Issue 16 封面图片，第64卷，第16期

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 DOI: 10.1002/pola.70310

Noel C. Migliaccio, Nathan J. Weeks, Scott T. Iacono

引用次数: 0

Enhanced Mechanical and Thermal Properties of Transparent TPU Film Composites Based on Surface Modified Acid Activated Sepiolite Nanofibers 表面改性酸活化海泡石纳米纤维增强透明TPU薄膜复合材料的力学和热性能

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-07-02 DOI: 10.1002/pola.70246

Kaihang Zhou, Xiaoshuai Han, Bin He, Shuijian He, Gaigai Duan, Shaohua Jiang

{"title":"Enhanced Mechanical and Thermal Properties of Transparent TPU Film Composites Based on Surface Modified Acid Activated Sepiolite Nanofibers","authors":"Kaihang Zhou, Xiaoshuai Han, Bin He, Shuijian He, Gaigai Duan, Shaohua Jiang","doi":"10.1002/pola.70246","DOIUrl":"https://doi.org/10.1002/pola.70246","url":null,"abstract":"<div>\u0000 \u0000 <p>To tackle the issue of interfacial incompatibility between hydrophilic acid-activated sepiolite nanofibers (A-SEP) and hydrophobic thermoplastic polyurethane (TPU) matrices, this study utilizes methyl trimethoxysilane (MTMS) to perform surface hydrophobization modification on A-SEP. By silane coupling, hydrophobic methyl groups (<span></span>CH<sub>3</sub>) are introduced to improve interfacial compatibility. MTMS modified-acid-activated sepiolite nanofibers/TPU (MSNF/TPU) nanocomposite films are prepared using the solution casting method, and systematic characterization reveals that: the mechanical properties of the modified composites (tensile strength, elongation at break, Young's modulus) are significantly enhanced, thermal stability (decomposition temperature, residual carbon rate) is improved, and the glass transition temperature (<i>T</i>\u0000 <sub>g</sub>) is adjustable. The transparency in the visible light spectrum is positively correlated with the state of fiber dispersion. This work offers a scalable interfacial engineering strategy for clay mineral-reinforced polymer composites.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3442-3452"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752422","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

Surface-Functionalized TiH2 Nanoparticles for Simultaneous Reinforcement and Toughening of Highly Crystalline Polyurethane 表面功能化TiH2纳米颗粒同时增强和增韧高结晶聚氨酯

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-07-07 DOI: 10.1002/pola.70225

Shuang Fu, Dengke Wang, Chengzhuang Su, Yuchen Ma, Hao Huang, Ting Chang

{"title":"Surface-Functionalized TiH2 Nanoparticles for Simultaneous Reinforcement and Toughening of Highly Crystalline Polyurethane","authors":"Shuang Fu, Dengke Wang, Chengzhuang Su, Yuchen Ma, Hao Huang, Ting Chang","doi":"10.1002/pola.70225","DOIUrl":"https://doi.org/10.1002/pola.70225","url":null,"abstract":"<div>\u0000 \u0000 <p>Polyethylene glycol (PEG), owing to its excellent adhesion, broad compatibility with various components, and tunable molecular structure, has emerged as a research hotspot and a promising candidate in the field of high-performance binders. However, although the high crystallinity of PEG is beneficial in certain applications, excessive crystallization of the PEG soft segments at low temperatures can restrict molecular-chain mobility and deformability, thereby adversely affecting the low-temperature mechanical performance of PEG-based polyurethane binders. To overcome this critical limitation, this study proposes a strategy to enhance the mechanical performance of PEG-based polyurethane binders, namely by synergistically introducing surface-functionalized nano-titanium hydride (nano-TiH<sub>2</sub>) particles and a chain extender containing dynamic disulfide (S–S) bonds for modification. The incorporation of modified nano-titanium hydride leads to a relative reduction of approximately 20% in the crystallinity of the prepared PEG-based polyurethane. Meanwhile, the functional groups grafted onto its surface significantly enhance interfacial bonding with the matrix. This synergistic effect, combined with the efficient energy dissipation capability of the dynamic disulfide-containing chain extender, collectively leads to an improvement in the mechanical properties of the binder. The experimental results demonstrate that the prepared PEG-based polyurethane exhibits excellent mechanical properties, with a tensile strength of 12.44 MPa, an elongation at break of 1180.24%, and a toughness of 83.82 MJ/m<sup>3</sup>. Compared with traditional approaches that modify the polymer molecular chain structure, the use of a simple blending strategy with functionalized nanoparticles offers a highly promising route for enhancing the mechanical properties of binders.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3521-3533"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753240","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

One-Pot Synthesis of Amine-Rich Starch-PVA Composite Hydrogel Microspheres for Simultaneous Cr(VI) Removal and In-Situ Reduction 富胺淀粉-聚乙烯醇复合水凝胶微球的一锅合成及同时原位还原Cr(VI

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2026-08-16 Epub Date: 2026-06-29 DOI: 10.1002/pola.70239

Jiali Zhuang, Wenyu Fan, Mingjie Ji, Shijing Lu, Xiaolin Guo

{"title":"One-Pot Synthesis of Amine-Rich Starch-PVA Composite Hydrogel Microspheres for Simultaneous Cr(VI) Removal and In-Situ Reduction","authors":"Jiali Zhuang, Wenyu Fan, Mingjie Ji, Shijing Lu, Xiaolin Guo","doi":"10.1002/pola.70239","DOIUrl":"https://doi.org/10.1002/pola.70239","url":null,"abstract":"<div>\u0000 \u0000 <p>A one-pot radical polymerization strategy was developed to directly copolymerize polyethyleneimine (PEI) into a starch-poly(vinyl alcohol) hydrogel network, circumventing the multistep procedures, network heterogeneity, and poor product recovery inherent to conventional grafting. Suppressing the chain-transfer activity of PEI through controlled monomer feeding and rapid initiation yielded uniform microspheres with homogeneously distributed amine sites, which achieved an adsorption capacity of 780.0 mg g<sup>−1</sup> at pH 3.0 and 298 K, ranking among the highest values reported for starch-based adsorbents. Kinetic and isotherm analyses showed that adsorption followed a pseudo-second-order rate law and the Freundlich model, consistent with a spontaneous, endothermic, entropy-driven, chemisorption-dominated multilayer process. Spectroscopic evidence revealed a synergistic adsorption–reduction–immobilization pathway whereby protonated amine groups electrostatically capture HCrO<sub>4</sub>\u0000 <sup>−</sup>, neutral amines donate electrons to reduce Cr(VI) to Cr(III) in situ, and the reduced chromium is subsequently chelated and immobilized by carboxyl and residual amine groups within the hydrogel network. The material maintained over 69% removal efficiency in real water matrices and retained 90.6% of its initial capacity after five regeneration cycles with sodium hydroxide. This strategy integrates network construction, amine functionalization, and microsphere formation in a single step, establishing a new paradigm for high-performance starch-based adsorbents combining exceptional capacity, structural robustness, and practical separability.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 16","pages":"3402-3419"},"PeriodicalIF":3.9,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754279","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