Journal of Polymer Science最新文献

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Polyborosiloxane-Modified Natural Rubber With Enhanced Mechanical, Thermal, and Viscoelastic Properties 聚硼硅氧烷改性天然橡胶具有增强的机械,热和粘弹性性能
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-15 Epub Date: 2026-01-28 DOI: 10.1002/pol.20250839
Simran Guleria, Rajeev Mehta
{"title":"Polyborosiloxane-Modified Natural Rubber With Enhanced Mechanical, Thermal, and Viscoelastic Properties","authors":"Simran Guleria,&nbsp;Rajeev Mehta","doi":"10.1002/pol.20250839","DOIUrl":"https://doi.org/10.1002/pol.20250839","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates polyborosiloxane (PBS) as a supramolecular viscoelastic modifier for enhancing the performance of natural rubber (NR). PBS was synthesized by reacting hydroxy-terminated polydimethylsiloxane (PDMS–OH) with boric acid (BA), forming a dynamic network through reversible Si–O–B covalent bonds. PBS was incorporated into NR at varying loadings via two-roll milling, followed by sulfur vulcanization. FTIR confirmed successful PBS synthesis and incorporation, while SEM revealed PBS-loading-dependent morphological changes. TGA demonstrated enhanced thermal stability of PBS-modified NR relative to neat NR. Mechanical testing identified 0.5 phr as the optimal loading, yielding significant improvements in tensile strength and overall mechanical performance while inducing a controlled reduction in hardness. At higher PBS content, phase separation and agglomeration occurred, leading to diminished mechanical properties, as confirmed by SEM–EDS and boron analysis. DMA revealed a PBS-loading-dependent viscoelastic response, induced a reduced rubbery-plateau storage modulus, broadened relaxation behavior, and altered damping characteristics. Overall, the results demonstrate that PBS effectively tailors the viscoelastic properties of NR at low loadings, with material performance being highly sensitive to PBS loading.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1345-1361"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569909","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
Ultra-Stretchable and Low-Temperature Adaptive Conductive Hydrogels Based on the Hofmeister Effect 基于霍夫迈斯特效应的超可拉伸低温自适应导电水凝胶
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-15 Epub Date: 2026-01-31 DOI: 10.1002/pol.20251157
Haiyan Liu, Hui Tao, Pei Zhao, Haicun Yang, Junfeng Cheng, Cheng Zhang, Chunlin Liu, Fangli Sun, Louis C. P. M. de Smet, Zheng Cao
{"title":"Ultra-Stretchable and Low-Temperature Adaptive Conductive Hydrogels Based on the Hofmeister Effect","authors":"Haiyan Liu,&nbsp;Hui Tao,&nbsp;Pei Zhao,&nbsp;Haicun Yang,&nbsp;Junfeng Cheng,&nbsp;Cheng Zhang,&nbsp;Chunlin Liu,&nbsp;Fangli Sun,&nbsp;Louis C. P. M. de Smet,&nbsp;Zheng Cao","doi":"10.1002/pol.20251157","DOIUrl":"https://doi.org/10.1002/pol.20251157","url":null,"abstract":"<div>\u0000 \u0000 <p>Conductive hydrogels have attracted significant interest due to their potential applications in human motion monitoring, health diagnostics, and beyond. However, integrating ultra-stretchability, strain sensitivity, and freeze resistance into hydrogel strain sensors remains a challenge. In this study, polyacrylamide/polyvinyl alcohol/quaternized chitosan (PAM/PVA/QCS, PPQ) hydrogel was fabricated via a one-pot in situ free radical copolymerization process, followed by freeze–thaw treatment and immersion. The hydrogel matrix consists of acrylamide (AAm) chemically crosslinked by <i>N, N′</i>-methylenebisacrylamide (MBA) and PVA, forming a physically crosslinked hydrogen-bonded network, with QCS serving as the reinforcing phase. Under the Hofmeister effect, introduction of citrate ions (Cit<sup>3−</sup>) as salting-out ions facilitates hydrogen bond formation through amino groups (-NH<sub>2</sub>) in PAM, while establishing electrostatic interactions with the quaternary ammonium groups in QCS. Concurrently, Cit<sup>3−</sup> anions regulate the hydration chemistry of PVA by adsorbing water molecules within the polymer chains. The ionic hydrogel demonstrates a maximum elongation of 1,014% and ionic conductivity of 1.43 S/m while maintaining stable performance at −20°C. It exhibits exceptional mechanical properties, frost resistance, and electrical conductivity. Notably, when deployed as a flexible strain sensor, the hydrogel achieves outstanding tensile strain sensitivity (GF = 1.812), rapid response, and stable electrical signal output over 500 cyclic loading-unloading tests.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1396-1411"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570370","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
Development of Tunable Materials From Well-Defined Alendronic Acid Functionalized Polyacrylamide: An Opportunity for Actinide Decontamination 从定义良好的阿伦膦酸功能化聚丙烯酰胺中开发可调材料:锕系元素去污的机会
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-15 Epub Date: 2026-02-04 DOI: 10.1002/pol.20250876
Vincent Darcos, Loona Ferrie, Carlos Arrambide, Gabriele Vecchio, Nicolas Dacheux, Stephane Pellet-Rostaing, Benedicte Prelot, Sophie Monge
{"title":"Development of Tunable Materials From Well-Defined Alendronic Acid Functionalized Polyacrylamide: An Opportunity for Actinide Decontamination","authors":"Vincent Darcos,&nbsp;Loona Ferrie,&nbsp;Carlos Arrambide,&nbsp;Gabriele Vecchio,&nbsp;Nicolas Dacheux,&nbsp;Stephane Pellet-Rostaing,&nbsp;Benedicte Prelot,&nbsp;Sophie Monge","doi":"10.1002/pol.20250876","DOIUrl":"https://doi.org/10.1002/pol.20250876","url":null,"abstract":"<p>Bisphosphonic acid groups are emerging as promising functionalities for actinide decontamination, due to their high density of chelating sites. However, the chemistry of bisphosphonate (in particular alendronate) materials remains complex and underexplored. Herein, the synthesis of novel valuable materials, namely poly(<i>N</i>-isopropylacrylamide)-<i>b</i>-poly(acryloylmorpholine-<i>co</i>-alendronate acrylamide) (PNIPAAm-<i>b</i>-P(NAM-<i>co</i>-AleAAm)) was reported. These copolymers were synthesized in three steps. First, poly(<i>N</i>-isopropylacrylamide)-<i>b</i>-poly(acryloylmorpholine-<i>co</i>-<i>N</i>-acryloxysuccinimide) (PNIPAAm-<i>b</i>-P(NAM-<i>co</i>-NAS)) diblock copolymers were prepared by RAFT polymerization. Then, bisphosphonic acid groups were grafted onto the preformed copolymers by a post-polymerization modification reaction. Original produced alendronate-based functional copolymers were either water-soluble or capable of forming hydrogels under suitable concentration and temperature conditions. Sorption properties of such materials for actinides were investigated. For such purpose, the binding affinities of these functionalized copolymers for actinide surrogates, Nd(III) and Ce(III), were evaluated by isothermal titration calorimetry (ITC). Experimental results demonstrated good complexation efficiency, which logically raised with increasing bisphosphonic acid content. These results highlight the potential of well-defined, tunable hydrosoluble/hydrogel bisphosphonate-based polymers as high potential candidates for actinide decorporation applications.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1431-1443"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250876","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563120","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
β-Cyclodextrin Cross-Linked Superoleophilic and Under-Oil Superhydrophobic Polyacrylate Gel Coating for Oil and Water Separation 用于油水分离的β-环糊精交联超亲油和欠油超疏水聚丙烯酸酯凝胶涂层
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-15 Epub Date: 2026-01-28 DOI: 10.1002/pola.70056
Nong Wang, Jiajun Zuo, Haoqian Wang, Zhihang Wang
{"title":"β-Cyclodextrin Cross-Linked Superoleophilic and Under-Oil Superhydrophobic Polyacrylate Gel Coating for Oil and Water Separation","authors":"Nong Wang,&nbsp;Jiajun Zuo,&nbsp;Haoqian Wang,&nbsp;Zhihang Wang","doi":"10.1002/pola.70056","DOIUrl":"https://doi.org/10.1002/pola.70056","url":null,"abstract":"<div>\u0000 \u0000 <p>Cyclodextrins (CDs) are cyclic oligosaccharides composed of varying numbers of glucose units, featuring multiple active hydroxyl groups on their surfaces that can be easily functionalized for a wide range of applications, including in the pharmaceutical, food, and chemical industries. In this study, cyclodextrin acrylate (CDA) was synthesized by substituting the hydroxyl groups on β-cyclodextrin (β-CD) with acryloyl groups. A polyacrylate organogel (PAO) was then prepared via copolymerization, using CDA as a crosslinking agent and methyl methacrylate (MMA) and lauryl methacrylate (LMA) as comonomers. The resulting organogel exhibited strong absorption capacity for a range of organic solvents, such as toluene, methylene chloride, and chloroform. When coated onto polypropylene non-woven fabric, the PAO formed an oil–water separation membrane with superoleophilic and under-oil superhydrophobic properties. This membrane demonstrated excellent separation performance for oil–water mixtures, achieving separation efficiencies up to 99% under gravity-driven conditions. Repeated separation tests with various light and heavy oil–water mixtures further confirmed the membrane's high efficiency and reusability for practical applications.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1335-1344"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570051","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
A Comprehensive Review of Natural Polymer-Based Adsorbents for Microplastic Removal 天然高分子基吸附剂去除微塑料的研究进展
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-15 Epub Date: 2026-02-06 DOI: 10.1002/pola.70061
XiaoFeng Tang, YanKai Li, Xi He, ShuPing Zhang
{"title":"A Comprehensive Review of Natural Polymer-Based Adsorbents for Microplastic Removal","authors":"XiaoFeng Tang,&nbsp;YanKai Li,&nbsp;Xi He,&nbsp;ShuPing Zhang","doi":"10.1002/pola.70061","DOIUrl":"https://doi.org/10.1002/pola.70061","url":null,"abstract":"<p>Microplastics (MPs) have emerged as pervasive environmental contaminants, posing rising risks to aquatic ecosystems and human health. Adsorption-based approaches have been widely explored as effective strategies for MPs removal because they are operationally simple and compatible with diverse materials. Natural polymers and their composites have attracted increasing attention as MPs adsorbents because they are renewable, often biodegradable, and structurally tunable. This review summarizes recent advances in MPs adsorption using representative natural polymers, including chitosan (CS), sodium alginate (SA), cellulose, and pectin. The relationships between material structure, surface functionality, and MPs adsorption behavior are critically analyzed, with emphasis on particle-surface interactions such as physical interception, hydrophobic interactions, electrostatic attraction, and hydrogen bonding. Reported MPs removal performances span a wide range, with capacities typically from tens to several hundred mg g<sup>−1</sup> and removal efficiencies often above 90%, depending on polymer type, surface modification, and MPs properties. In addition, the applicability of adsorption models and evaluation metrics is discussed. This review aims to provide practical guidance for selecting and applying natural polymer-based adsorbents for MPs removal in water treatment systems. Finally, current challenges and future perspectives are proposed to guide the rational design of efficient and sustainable natural polymer-based adsorbents for MPs removal.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 6","pages":"1444-1464"},"PeriodicalIF":3.6,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.70061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563576","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 Mini-Review of Thiourea-Based Polymers in Catalysis: From Hydrogen-Bonding to Emerging Polymerization Strategies 硫脲基聚合物催化研究综述:从氢键到新兴聚合策略
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-02 Epub Date: 2026-01-16 DOI: 10.1002/pol.20251116
Ros Azlinawati Ramli, Bohari Mohd. Yamin
{"title":"A Mini-Review of Thiourea-Based Polymers in Catalysis: From Hydrogen-Bonding to Emerging Polymerization Strategies","authors":"Ros Azlinawati Ramli,&nbsp;Bohari Mohd. Yamin","doi":"10.1002/pol.20251116","DOIUrl":"https://doi.org/10.1002/pol.20251116","url":null,"abstract":"<p>Thiourea derivatives are powerful hydrogen-bond donors that have revolutionized small-molecule catalysis, but their integration into polymer frameworks remains comparatively underexplored. Thiourea-based polymers offer unique advantages, including tunable architectures, enhanced stability, and recyclability, but challenges in synthesis, functional stability, and active-site distribution hinder wider application. This mini-review critically highlights advances from hydrogen-bonding catalysis to emerging polymerization and post-functionalization strategies, identifies key research gaps, and outlines opportunities for designing multifunctional catalytic polymers. By bridging molecular thiourea chemistry with macromolecular design, this review provides a timely perspective to guide sustainable catalysis and expand the role of thioureas in polymer science.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1242-1253"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20251116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566014","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
Sequential Diluted Anhydride-Epoxy Thermosets: Influence of Slow Dual-Curing Behavior on Thermal and Mechanical Properties 顺序稀释酸酐-环氧热固性材料:缓慢双固化行为对热学和力学性能的影响
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-02 Epub Date: 2026-01-23 DOI: 10.1002/pol.20251093
Anna M. Dlugaj, David May
{"title":"Sequential Diluted Anhydride-Epoxy Thermosets: Influence of Slow Dual-Curing Behavior on Thermal and Mechanical Properties","authors":"Anna M. Dlugaj,&nbsp;David May","doi":"10.1002/pol.20251093","DOIUrl":"https://doi.org/10.1002/pol.20251093","url":null,"abstract":"<div>\u0000 \u0000 <p>This article reports the development and characterization of sequential dual-curable thermosets based on off-stoichiometric diluted anhydride-epoxy formulations containing and not containing BYK-A 530 (BYK) as an air release additive in the presence of 1-methylimidazole (IMI) as an initiator. An mixture of diglycidyl ether of bisphenol A (epoxy resin) and 1,6-bis(2,3-epoxypropoxy)hexane (diluent) (DG) and tetrahydromethylphthalic anhydride (ANHY) is used in order to achieve low viscosity and long pot life at room temperature. The combination of anhydride-epoxy condensation (esterification) and epoxy homopolymerization (etherification) as two competing reactions enables sequentiality, and their relative contribution, adjusted by the amount of ANHY in the formulation, determines the network structure build-up and changes in viscosity. The results show that these changes also depend on pre-curing conditions and absolute mass sample. Differential scanning calorimetry (DSC) of thermosets reveals an additional exothermic region above 176°C, which requires higher final curing temperatures and causes difficulties in post-curing compared to conventional thermosets. The glass transition temperature of these thermosets, determined by dynamic mechanical analysis (DMA), is therefore approximately 90°C, which is ≈35°C lower than that of conventional thermosets. The dual-curable thermosets show the tensile strength of approximately 72.6 MPa, which is slightly lower than that of conventional ones (78.9 MPa).</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1288-1304"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568364","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 Phenylamino Groups on Polyimide Membranes Containing Spiro-Bis-Indane Structures for Gas Separation 苯胺基对含螺-双烷结构聚酰亚胺膜气体分离的影响
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-02 Epub Date: 2026-01-16 DOI: 10.1002/pol.20251234
Tianshu Wang, Dongpeng Li, Dandan Li, Wei Wang, Youhai Yu, Guangtao Qian, Chunhai Chen
{"title":"Effect of Phenylamino Groups on Polyimide Membranes Containing Spiro-Bis-Indane Structures for Gas Separation","authors":"Tianshu Wang,&nbsp;Dongpeng Li,&nbsp;Dandan Li,&nbsp;Wei Wang,&nbsp;Youhai Yu,&nbsp;Guangtao Qian,&nbsp;Chunhai Chen","doi":"10.1002/pol.20251234","DOIUrl":"https://doi.org/10.1002/pol.20251234","url":null,"abstract":"<div>\u0000 \u0000 <p>Incorporating functional groups capable of interacting with gas molecules into the molecular structure is a pivotal strategy for enhancing the performance of polymer-based gas separation membranes. In this study, two diamines featuring spiro-bis-indane moieties and distinct functional groups were separately polymerized with 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) to synthesize two polyimide membranes. The effects of hydroxyl (<span></span>OH) groups and phenylamino (<span></span>NHPh) groups on gas separation performance were systematically investigated. Hydroxyl groups are known to enhance CO<sub>2</sub> solubility via hydrogen-bond-like interactions while disrupting chain packing to increase free volume, synergistically improving separation efficiency. This work further demonstrates that the basic phenylamino groups selectively adsorb CO<sub>2</sub> through Lewis acid–base interactions, boosting CO<sub>2</sub> solubility and amplifying solubility differences with nonpolar gases. Additionally, the rigid spiro-bis-indane structure collaborates with these functional groups to tailor the microporous network, thereby optimizing gas transport properties.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1229-1241"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566015","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
Highly Degradable Polyester With Chemical and Thermal Stability Utilizing Oxidative Degradation of 2-Thioethyl Ester 利用2-硫乙酯的氧化降解,具有化学和热稳定性的高降解聚酯
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-02 Epub Date: 2026-01-06 DOI: 10.1002/pol.20250924
Nobuhiro Kihara, Miho Mochizuki, Hiroyuki Yamaguchi, Atsuhiro Endo
{"title":"Highly Degradable Polyester With Chemical and Thermal Stability Utilizing Oxidative Degradation of 2-Thioethyl Ester","authors":"Nobuhiro Kihara,&nbsp;Miho Mochizuki,&nbsp;Hiroyuki Yamaguchi,&nbsp;Atsuhiro Endo","doi":"10.1002/pol.20250924","DOIUrl":"https://doi.org/10.1002/pol.20250924","url":null,"abstract":"<p>Although degradability and stability are generally incompatible, polymers that degrade through nonnatural stimuli can exhibit high durability, even if they are highly degradable. 2-Thioethyl ester can be degraded into carboxylic acid by the oxidation of sulfide to sulfone using nonnatural oxidant followed by the treatment with base. Polyesters containing the 2-thioethyl ester structure are synthesized. After the sulfide group is quantitatively oxidized to sulfone by mCPBA, the sulfone polyester dissolves even in sodium carbonate solution via the base-promoted β-elimination. The one-shot oxidative degradation of sulfide polyester is achieved by the treatment with hydrogen peroxide solution in the presence of sodium tungstate as a catalyst and sodium carbonate as a base. The oxidation of sulfide to sulfone occurs only at the surface of the polyester particles, and further oxidation takes place after the sulfone layer is removed via β-elimination. Polyesters with the structure of 2-thioethyl ester are stable during use, but can be converted to the monomer at the desired instant after use.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1130-1136"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250924","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563431","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
Confining Effects on Semiflexible Polymers in Hollow Particles 半柔性聚合物在中空颗粒中的约束效应
IF 3.6 3区 化学
Journal of Polymer Science Pub Date : 2026-03-02 Epub Date: 2026-01-14 DOI: 10.1002/pol.20251021
Peter Cifra, Tomáš Bleha
{"title":"Confining Effects on Semiflexible Polymers in Hollow Particles","authors":"Peter Cifra,&nbsp;Tomáš Bleha","doi":"10.1002/pol.20251021","DOIUrl":"https://doi.org/10.1002/pol.20251021","url":null,"abstract":"<div>\u0000 \u0000 <p>3D entrapment of polymers in nanocavities is crucial for a variety of synthetic and biomimetic materials, including hollow particles. We evaluate the effect of chain stiffness on the properties of polymers entrapped in cavities/capsules using molecular simulation. Two confinement-induced phenomena are found to control the polymer distribution <i>ρ</i>(<i>r</i>) across the closed sphere. The near-wall entropic depletion, characteristic of flexible polymers, manifests itself in monotonous profiles similar to those around a solid sphere in open systems. Contrarily, in moderately stiff polymers, the confining surface generates distinct density enrichment in profiles due to the development of toroidal conformations. The energetics of toroidal growth in a semidilute solution is quantified by simulation. The computed bending energy confirms a simpler generation of toroids in short polymers. The observed reduction of the persistence length in a cavity facilitates the growth of toroids. The thickness of the depletion layer determined by the novel universal method is in agreement with the data from the restricted conventional method. A close relationship is demonstrated between the concentration changes in the depletion thickness and the radius of gyration. The relevance of the computed confinement effects to bioanalytical or biomedical applications of capsules/hollow particles is discussed.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"64 5","pages":"1186-1201"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565679","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
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