IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-06 DOI: 10.1016/j.polymer.2026.129718

Xin Zhang , Jiawei Li , Hongyan Wang , Tianzi Meng , Xiaojian Zhou , Liangjun Xiao , Hui Wang

{"title":"Preparation and performance of bio-based composite film with superhydrophobic surface using a simple enhancement strategy, and their applications","authors":"Xin Zhang , Jiawei Li , Hongyan Wang , Tianzi Meng , Xiaojian Zhou , Liangjun Xiao , Hui Wang","doi":"10.1016/j.polymer.2026.129718","DOIUrl":"10.1016/j.polymer.2026.129718","url":null,"abstract":"<div><div>The application of bio-based materials is considered an effective way to address the pollution caused by non-biodegradable petroleum-based products. However, the poor water resistance of bio-based products is still a barrier hindering their application due to the hydrophilicity of biomass raw materials. In this work, a simple enhancement strategy was developed to prepare a bio-based film with excellent hydrophobicity. A grafted copolymerization was achieved under a redox system between using konjac flour (KF) and dialdehyde starch (DAS) as the raw film-forming substances, and silicon dioxide (SiO<sub>2</sub>) was employed as an enhancing component to improve the water resistance of the resulting film. The results indicated that the performance and hydrophobicity of the prepared films were directly related to the amount of DAS and the effect of SiO<sub>2</sub>, the best tensile strength was 42.26 MPa with a water contact angle of 153°. When used as a preservative film for bananas, the weight loss in a 7-day experiment was only 7.18%. Additionally, the biodegradation rate of the film exceeded 80% over a 30-day experimental period.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129718"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fabrication of amphiphobic fabrics with excellent and durable hydrophobicity and oleophobicity via C4 short-fluorinated polymers 利用C4短氟化聚合物制备具有优异和耐用的疏水性和疏油性的双疏织物

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-09 DOI: 10.1016/j.polymer.2026.129725

Yajing Zhu , Anyang Duan , Zhonglin Xiang , Xiaoyan Wang , Yang Jiang , Changhai Xu , Jinmei Du

{"title":"Fabrication of amphiphobic fabrics with excellent and durable hydrophobicity and oleophobicity via C4 short-fluorinated polymers","authors":"Yajing Zhu , Anyang Duan , Zhonglin Xiang , Xiaoyan Wang , Yang Jiang , Changhai Xu , Jinmei Du","doi":"10.1016/j.polymer.2026.129725","DOIUrl":"10.1016/j.polymer.2026.129725","url":null,"abstract":"<div><div>Over the decades, long-chain perfluoroalkyl substances were historically employed to provide textiles with water and oil-repellent properties, but have been globally restricted due to their environmental and biological hazards. While short-chain replacements offer a reduced toxicological profile, they consequently suffer from inferior amphiphobicity. To address this, an amphiphobic polymer of C4-fluorinated acrylate with aromatic structures (NV-PAA) was synthesized via esterification of 1H,1H,2H,2H-perfluorohexan-1-ol with 4-vinylbenzoic acid, followed by emulsion polymerization with acrylate monomers. The resulting NV-PAA was dip-coated onto cotton fabric to fabricate an amphiphobic fabric (NV-PAA@CF). The amphiphobicity of the NV-PAA@CF surpassed that of the non-aromatic modified fabric in terms of water contact angle (WCA), oil contact angle (OCA), water sliding angle (WSA), and oil sliding angle (OSA) (ΔWCA = +5.7° and ΔWSA = -6.9°, ΔOCA = +8.8° and ΔOSA = −18.2°), even without engineered surface roughness. This advancement stems from the incorporation of the benzene ring, which enhances the crystallinity of the fluorinated carbon alkyl side chains. The NV-PAA@CF also resisted various oil droplets and contaminated liquid droplets, demonstrating exceptional self-cleaning and anti-fouling characteristics. Even after physical abrasion, chemical corrosion, and washing, WCA and OCA of the NV-PAA@CF remained above 150° and 140°, respectively, demonstrating its remarkable durability. This work presents a high-performance short-chain fluoropolymer coating design for amphiphobic textiles, aiming to advance sustainable development.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129725"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Comparative extraction, characterization, and fabrication of bioactive polysaccharide-based nanofibers from Cordia myxa fruit for potential wound dressing applications 比较提取、表征和制备具有生物活性的多聚糖纳米纤维，用于潜在的伤口敷料应用

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-10 DOI: 10.1016/j.polymer.2026.129722

Alireza Keshvari , Reza Azin , Shahriar Osfouri , Sasan Zaeri

{"title":"Comparative extraction, characterization, and fabrication of bioactive polysaccharide-based nanofibers from Cordia myxa fruit for potential wound dressing applications","authors":"Alireza Keshvari , Reza Azin , Shahriar Osfouri , Sasan Zaeri","doi":"10.1016/j.polymer.2026.129722","DOIUrl":"10.1016/j.polymer.2026.129722","url":null,"abstract":"<div><div>This study investigated the extraction, characterization, and fabrication of nanofibers from polysaccharides derived from <em>Cordia myxa</em> fruit using hot water extraction (HWE) and ultrasound-assisted extraction (USAE). Extraction conditions were optimized using response surface methodology, yielding 8.93% (HWE) and 8.40% (USAE), which confirmed the efficiency and shorter processing time of USAE. Although both methods produced polysaccharides with similar saccharide compositions, the USAE-derived sample showed superior quality-being protein-free (vs. 8.2% protein in HWE), with lower ash content (4.3%) and stronger antioxidant activity. It also exhibited higher apparent viscosity and greater colloidal stability (−71 mV vs. −56 mV), indicating improved purity and functionality. USAE-derived polysaccharide was selected for nanofiber fabrication. Pure polysaccharide was not electrospinnable, but blending with 6% (w/v) polyvinyl alcohol (PVA) enabled the formation of uniform, bead-free fibers at low polysaccharide concentrations (0.25–0.5% (w/v)). The nanofibers exhibited high porosity, enhanced thermal stability, and strong crosslinking after treatment with glutaraldehyde vapor. They also showed excellent water absorption and slow degradation, making them suitable for wound dressing use. Antioxidant and release analyses revealed complete release of the 0.25% formulation within 72 h, while the 0.5% fibers showed a slower, sustained release profile. Cytocompatibility and adhesion assays using L929 fibroblasts confirmed non-cytotoxic behavior and improved cell spreading on polysaccharide-containing mats. Overall, ultrasound-assisted extraction coupled with PVA electrospinning produced antioxidant, biocompatible, and thermally stable nanofibers with strong potential for wound-healing applications.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129722"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Probing the energy dissipation mechanisms of shear thickening gel at molecular level 从分子水平探讨剪切增稠凝胶的能量耗散机制

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-11 DOI: 10.1016/j.polymer.2026.129736

Yuan Yao , Bing Liu , Kang Wang , Yuxin Xia , Huaxia Deng , Xinglong Gong

{"title":"Probing the energy dissipation mechanisms of shear thickening gel at molecular level","authors":"Yuan Yao , Bing Liu , Kang Wang , Yuxin Xia , Huaxia Deng , Xinglong Gong","doi":"10.1016/j.polymer.2026.129736","DOIUrl":"10.1016/j.polymer.2026.129736","url":null,"abstract":"<div><div>Shear thickening gels (STGs) exhibit remarkable impact resistance and energy absorption properties owing to the non-linear and reversible mechanical properties. However, the molecular-level mechanisms underlying their dissipation behavior remain unclear due to the limited understanding of how crosslinking density and local coordination influence energy redistribution and structural relaxation during impact. In this work, we developed a coarse-grained molecular dynamics model to investigate the impact induced energy conversion in STGs with different Si/B molar ratios. The simulations were validated by rheological experiments and accurately reproduced the nonlinear viscoelastic and shear thickening responses of system. The results show that energy evolution revealed a rapid transformation of kinetic energy into potential and internal deformation energy, followed by relaxation driven stabilization. Three coupled molecular processes-reversible coordination, chain conformational change, and orientational relaxation-were identified as key pathways that govern the dissipation efficiency and reversibility by regulating the partitioning of mechanical energy is partitioned between elastic storage, structural reconfiguration, and irreversible deformation. This work modulates the balance between elastic energy storage and irreversible deformation, thereby establishing a unified molecular framework that links network architecture to macroscopic impact performance.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129736"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146160848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Synthesis and properties of fluorine-free polyimides with ultrahigh Tg and excellent transparency based on the synergistic regulation of fluorenyl and methyl groups 基于芴基和甲基协同调节的超高Tg、高透明度无氟聚酰亚胺的合成及性能

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-07 DOI: 10.1016/j.polymer.2026.129720

Tianci Ma , Lei Yang , Jinglei Xing , Long Wang , Guofei Chen

{"title":"Synthesis and properties of fluorine-free polyimides with ultrahigh Tg and excellent transparency based on the synergistic regulation of fluorenyl and methyl groups","authors":"Tianci Ma , Lei Yang , Jinglei Xing , Long Wang , Guofei Chen","doi":"10.1016/j.polymer.2026.129720","DOIUrl":"10.1016/j.polymer.2026.129720","url":null,"abstract":"<div><div>It is a new challenge to develop fluorine-free transparent polyimides due to the prohibition of perfluoroalkyl and polyfluoroalkyl substances (PFAS). Hence, a series of fluorine-free polyimides were synthesized by 9,9-bis(3,4-dicarboxyphenyl) fluorene dianhydride (BPAF) with 3,3′-bis(methyl)-4,4′-benzidine (2,2′-DMBZ), 3,3′-bis(methyl)-4,4′-benzidine (3,3′-DMBZ), 1,4-diaminobenzene (<em>p</em>-PDA), 1,3-diaminobenzene (<em>m</em>-PDA), 2,6-toluenediamine (<em>m</em>-MPDA) and 2,4,6-trimethyl-1,3-phenylenediamine (<em>m</em>-TMPDA) through one-step and two-step methods. Then the corresponding polyimide films were obtained by solution casting. All polyimides exhibited high glass transition temperatures (<em>T</em><sub>g</sub>s) of 404-523 °C, coefficients of thermal expansion (CTEs) of 39-65 ppm/K, optical transmittances at 400 nm (<em>T</em><sub>400</sub>s) of 36-82 %, tensile strengths of 104.6-156.3 MPa, and tensile moduli of 2.6-4.3 GPa. The prepared fluorine-free polyimides had better performances than typical fluorine-containing polyimide derived from 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 2,2′-bis(trifluoromethyl)-4,4′-benzidine (TFDB). In particular, <strong>PI-6</strong> exhibited comprehensive properties with <em>T</em><sub>g</sub> of 523 °C, <em>T</em><sub>400</sub> of 82%, and CTE of 42 ppm/K.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129720"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Twisted non-coplanar benzimidazole diamines enabling colorless, high-Tg polyimide films for flexible displays 扭曲非共面苯并咪唑二胺使无色，高tg聚酰亚胺薄膜柔性显示

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-07 DOI: 10.1016/j.polymer.2026.129719

Peng Yue , Dandan Li , Wei Wang , Youhai Yu , Guangtao Qian , Chunhai Chen

{"title":"Twisted non-coplanar benzimidazole diamines enabling colorless, high-Tg polyimide films for flexible displays","authors":"Peng Yue , Dandan Li , Wei Wang , Youhai Yu , Guangtao Qian , Chunhai Chen","doi":"10.1016/j.polymer.2026.129719","DOIUrl":"10.1016/j.polymer.2026.129719","url":null,"abstract":"<div><div>To achieve high-performance colorless polyimide (CPI) films, this study employed a molecular structure design strategy aimed at suppressing the charge transfer complex (CTC) effect between molecular chains by introducing twisted and non-coplanar structure into the polymer backbone. Drawing inspiration from previous research, three benzimidazole-based diamine monomers with twisted non-coplanar structures were designed and synthesized by modulating the relative positions of amino groups and the structures of substituents. These monomers were subsequently polymerized with two dianhydrides, namely 1,2,4,5-cyclohexanetetracarboxylic dianhydride (HPMDA) and 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), yielding two series of polybenzimidazole-imides (PBIIs): semi-aromatic and fully aromatic polymers, respectively. The resulting semi-aromatic polymer films demonstrated a combination of excellent thermal resistance, with glass transition temperature (T<sub>g</sub>) exceeding 400 °C, and high optical transparency, exhibiting over 80% transmittance at 400 nm (T<sub>400</sub>). This work not only provides an effective molecular design strategy for developing high-performance CPI materials but also expands the application prospects of PBII materials in the field of high-temperature optical devices.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129719"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Additive Manufacturing of UV Cured Dual-Network Silicone Elastomer with 3D Multifunctional Structure 具有三维多功能结构的UV固化双网状有机硅弹性体的增材制造

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-08 DOI: 10.1016/j.polymer.2026.129703

Yanan Sun , Zhuoming Duan , Kexin Huan , Minhua Li , Yanli Shi , Weili Gao , Haifeng Jia , Yuetao Liu

{"title":"Additive Manufacturing of UV Cured Dual-Network Silicone Elastomer with 3D Multifunctional Structure","authors":"Yanan Sun , Zhuoming Duan , Kexin Huan , Minhua Li , Yanli Shi , Weili Gao , Haifeng Jia , Yuetao Liu","doi":"10.1016/j.polymer.2026.129703","DOIUrl":"10.1016/j.polymer.2026.129703","url":null,"abstract":"<div><div>UV-curable silicone rubber exhibits promising prospects in fields such as flexible electronics and advanced coatings due to its high processing efficiency and patternability. This study developed a synergistic crosslinking strategy that combines Michael addition and UV curing to prepare high-performance dual network silicone rubber and achieve curing within seconds. The system comprised key components: trifluoropropyl-grafted acrylic silicone resin (PAT-SR), pentaerythritol tetraacrylate (PET4A), and aminopropyl silicone oil (ASO). Initially, the primary amine groups of ASO underwent a catalyst-free Michael addition with the acrylate groups in PAT-SR and PET4A, forming a malleable, partially cross-linked prepolymer. Subsequently, the material was cured within seconds via free radical polymerization of the residual acrylate groups upon UV irradiation. The trifluoropropyl group imparted outstanding hydrophobicity and chemical resistance to the material. PET4A, acting as a rigid cross-linking center, significantly enhanced the mechanical strength; the sample ASO<sub>0.7</sub>/PA<sub>0.4</sub>-FSR achieved a tensile strength of 0.92 MPa and an elongation at break of 612%. Furthermore, the material demonstrated good interfacial compatibility with various functional fillers. This research provides a simple and efficient novel strategy for preparing high-performance dual-network silicone rubber materials that combine excellent comprehensive properties with high processability, holding broad application potential in areas such as anti-fouling, protective coatings, and flexible electronics.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129703"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146138958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Nanostructures of tetra-arm Poly(ethylene glycol) networks by Iron(III)-Catechol coordinative crosslinking units 铁(III)-儿茶酚配位交联单元制备四臂聚乙二醇网络的纳米结构

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-04 DOI: 10.1016/j.polymer.2026.129700

Jungju Ryu , Anna V. Sokolova , Minjeong Kang , Yoolee Lee , Ngoc Nguyen Quang , Daun Seol , Sanghoon Cho , Hoeil Chung , Daewon Sohn

{"title":"Nanostructures of tetra-arm Poly(ethylene glycol) networks by Iron(III)-Catechol coordinative crosslinking units","authors":"Jungju Ryu , Anna V. Sokolova , Minjeong Kang , Yoolee Lee , Ngoc Nguyen Quang , Daun Seol , Sanghoon Cho , Hoeil Chung , Daewon Sohn","doi":"10.1016/j.polymer.2026.129700","DOIUrl":"10.1016/j.polymer.2026.129700","url":null,"abstract":"<div><div>The internal structure of tetra-arm poly(ethylene glycol) networks crosslinked via coordination bonds was investigated to understand the structural aspects of these networks, which are connected by finite polymer units. In tetra-arm poly(ethylene glycol) modified with catechol moieties (4-PCA), the networks were preserved by coordination bonds of catechol-Fe(III) ions using optimal quantitative ratios (R<sub>CA/Fe</sub>) that form bis and tris-complexes depending on pH values. The network is established with finite units associated with changes in geometrical connections. This research focuses on the structural aspects composed of controllable coordination bonding units. The samples were investigated using small-angle X-ray scattering (SAXS) and neutron scattering (SANS) measurements. The apparent correlation lengths of the gels were discussed as the presence of nano-defects. The contrast variation SANS results support the presence of nano-defects, R<sub>g</sub> ∼3 nm. The defects are incorporated by partial irregularity of missing linkages and subsequent distortion of the topology. The rapid and sensitive controls using metal-mediated coordination bond may generate defects in the polymer network. It suggests that diverse strategies for metal-mediated hydrogels can be found by monitoring their nanostructures.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129700"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Mechanisms of polymer-surfactant synergy for enhanced salt-tolerance in CO2 foams 聚合物-表面活性剂协同增强CO2泡沫耐盐性的机理

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-06 DOI: 10.1016/j.polymer.2026.129678

Jun Zhao , Yangyang Yu , Kejing Wu , Yingying Liu , Yingming Zhu , Houfang Lu , Hairong Yue , Bin Liang

{"title":"Mechanisms of polymer-surfactant synergy for enhanced salt-tolerance in CO2 foams","authors":"Jun Zhao , Yangyang Yu , Kejing Wu , Yingying Liu , Yingming Zhu , Houfang Lu , Hairong Yue , Bin Liang","doi":"10.1016/j.polymer.2026.129678","DOIUrl":"10.1016/j.polymer.2026.129678","url":null,"abstract":"<div><div>The presence of salt ions significantly enhances the stability of polymer/surfactant composite foam systems, offering great potential for optimizing CO<sub>2</sub> foam flooding performance in high-salinity reservoirs. However, the molecular-level mechanism underlying this “salt ion-induced enhancement” effect remains unclear. This study systematically investigates the evolution of foam performance and the synergistic salt-tolerance mechanism of a polymer/surfactant system across a wide salinity range (0∼20 × 10<sup>4</sup> mg/L) through interface/bulk characterization combined with molecular dynamics simulations. Research demonstrates that salt ions weaken polymer/surfactant-H<sub>2</sub>O interactions through competitive hydration, while simultaneously promoting hydrogen bonds between the polymer/surfactant interface to form a highly elastic interfacial film. Additionally, the “salt thickening” effect of the foam base-fluid drives to form a supramolecular network, which is a key mechanism behind the enhanced viscoelasticity. Compared to a salt-free system, high salinity (20 × 10<sup>4</sup> mg/L) delays foam drainage (the drainage activation energy increases to 51.46 kJ/mol) and suppresses coarsening (<em>Ostwald</em> ripening rate decreases by 57.4%), thereby enhancing the foam comprehensive index by 1.78 times. This study elucidates the key pathways for salt ion-induced synergistic salt-tolerance in polymer/surfactant composite systems, providing theoretical support for constructing green, efficient CO<sub>2</sub> foam systems adapted to high-salinity environments.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129678"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

c-4CzTPN porous carbon-doped crosslinked rubbery PEG/PPG membranes synthesized via ROMP for enhanced CO2 separation 通过ROMP合成c-4CzTPN多孔碳掺杂交联橡胶PEG/PPG膜，增强CO2分离

IF 4.5 2区化学

Polymer Pub Date : 2026-03-19 Epub Date: 2026-02-09 DOI: 10.1016/j.polymer.2026.129707

Md. Homayun Kabir , Kavya Adot Veetil , Senthil Kannan , Ook Choi , Tae-Hyun Kim

{"title":"c-4CzTPN porous carbon-doped crosslinked rubbery PEG/PPG membranes synthesized via ROMP for enhanced CO2 separation","authors":"Md. Homayun Kabir , Kavya Adot Veetil , Senthil Kannan , Ook Choi , Tae-Hyun Kim","doi":"10.1016/j.polymer.2026.129707","DOIUrl":"10.1016/j.polymer.2026.129707","url":null,"abstract":"<div><div>A series of crosslinked rubbery polymer membranes based on poly(ethylene glycol)/poly(propylene glycol) (PEG/PPG) and doped with varying amounts of poly[2,3,5,6-tetra(carbazol-9-yl)terephthalonitrile] (p-4CzTPN)-derived porous carbon (c-4CzTPN) were fabricated via ring-opening metathesis polymerization (ROMP) to enhance their gas permeability and improve CO<sub>2</sub> transport across the network of the PEG/PPG polymer matrix. The incorporation of c-4CzTPN significantly increased the gas diffusivity, facilitating the permeation of gas molecules, particularly CO<sub>2</sub>, across the polymer matrix. The membranes exhibit good CO<sub>2</sub> separation performance, with CO<sub>2</sub> permeabilities ranging from 442.92 to 558.35 Barrer and CO<sub>2</sub>/N<sub>2</sub> and CO<sub>2</sub>/CH<sub>4</sub> selectivities of 41.87–48.67 and 14.77–15.91, respectively. The PEG/PPG-<em>c</em>-4CzTPN-0.5 membrane demonstrates excellent performance, exceeding Robeson's 2008 upper bound for CO<sub>2</sub>/N<sub>2</sub> separation. It also shows strong resistance to plasticization under a feed gas pressure up to 10 atm and maintains excellent anti-aging stability over 236 days.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"348 ","pages":"Article 129707"},"PeriodicalIF":4.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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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