Chinese Journal of Polymer Science最新文献

{"title":"Hypercrosslinked Porous Organic Polymers from Tetraaniline and Anthraquinone for High-capacitance, Long-life Supercapacitors","authors":"Xiao-Qian Gong,&nbsp;Xin-Ze-Yu Zhang,&nbsp;Yi-Fei Zhou,&nbsp;Yi Shi,&nbsp;Yu-Meng Zhang,&nbsp;Jia-Wei Hu,&nbsp;Peng-Cheng Li,&nbsp;Wei Lyu,&nbsp;Yao-Zu Liao","doi":"10.1007/s10118-026-3623-8","DOIUrl":"10.1007/s10118-026-3623-8","url":null,"abstract":"<div><p>Hypercrosslinked polymers (HCPs) are promising electrode materials for supercapacitors owing to their rigid three-dimensional networks and excellent structural stability; however, their electrochemical performance is often limited by an over-reliance on electric double-layer capacitance or insufficient redox-active sites. Herein, we report a series of hypercrosslinked polymers (HCPs) constructed from tetraaniline (TANI) and 2,6-diaminoanthraquinone (DAQ) to integrate abundant redox-active sites with robust three-dimensional porous networks for high-capacitance and long-life supercapacitor electrodes. By tuning the TANI-to-DAQ molar ratio, the optimized TADA11-HCP exhibits a hierarchical micro-/mesoporous architecture for exposed active sites and facilitated mass diffusion, along with the lowest optical bandgap (acid-treated) among the series for fast electron transport. Benefiting from the combined advantages of structural strength, hierarchical porosity, and an optimized electronic structure, TADA11-HCP achieves 700 F·g⁻¹ at 1 A·g⁻¹ and retains 92% capacitance after 10000 cycles, demonstrating excellent cycling stability. A flexible quasi-solid-state symmetric supercapacitor further demonstrates 278.4 F·g⁻¹ and an energy density of 38.7 Wh·kg⁻¹, highlighting the practical potential of TADA-HCPs for advanced supercapacitor applications. This work demonstrates an effective molecular-level strategy to enhance the capacitance of HCP-based electrodes while maintaining long-term stability, providing insights into the rational design of high-performance HCPs for supercapacitor applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 7","pages":"2212 - 2225"},"PeriodicalIF":4.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466243","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}

{"title":"Modulating Molecular Electrostatic Potential Unlocks Efficient Exciton Dissociation in A-D-A-type Narrow Bandgap Acceptors-based Organic Solar Cells","authors":"Jin Li,&nbsp;Ping Jiang,&nbsp;Hao-Jia Ding,&nbsp;Ming-Tao Liu,&nbsp;Yue Zhen,&nbsp;Dan Liu,&nbsp;Jia-Nan Fang,&nbsp;Pei-Pei Zhu,&nbsp;Shen-Bo Zhu,&nbsp;Hua-Wei Hu,&nbsp;Xun-Fan Liao,&nbsp;Yi-Wang Chen","doi":"10.1007/s10118-026-3655-0","DOIUrl":"10.1007/s10118-026-3655-0","url":null,"abstract":"<div><p>Multithiophene-based fused-ring electron acceptors (MFREAs) have demonstrated remarkable performance not only in organic solar cells, but also in other optoelectronic devices owing to their extended near-infrared absorption. However, an insufficient electrostatic potential (ESP) difference with the donor results in a weak intermolecular electric field (IEF), which leads to low exciton dissociation efficiency. In addition, the narrow bandgap causes substantial energy loss (<i>E</i>_loss), thereby restricting the open-circuit voltage. To address these problems, we developed two novel MFREAs, 6TFIC-C11-4F and 6TFIC-C11-4Cl, which were developed from the typical molecule 6TIC-4F <i>via</i> central-core side-chain fluorination and terminal chlorination. Although core fluorination slightly attenuated the intramolecular charge transfer (ICT) effect, this strategy significantly increased the overall average ESP value, strengthening the donor-acceptor IEF, thereby facilitating exciton dissociation. Terminal chlorination enhanced the ICT effect, resulting in a red-shifted absorption spectrum and stronger IEF. Notably, 6TFIC-C11-4F exhibited increased intermolecular interactions and reduced <i>π</i>-<i>π</i> stacking distances, leading to better charge transport. As a result, the PM6:6TFIC-C11-4F device achieved a decent power conversion efficiency of 13.32%, significantly outperforming the PM6:6TIC-4F device (10.52%). In addition, the PM6:6TF-IC-C11-4Cl device demonstrated reduced <i>E</i>_loss and a higher short-circuit current density, validating the potential of central-core side-chain fluorination and terminal chlorination in designing high-performance MFREAs.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2534 - 2548"},"PeriodicalIF":4.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783383","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}

{"title":"Multiple-Responsive Chiral Hydrogels from Helical Dendronized Poly(phenylacetylene)s","authors":"Lei Wang,&nbsp;Quan-Sheng Li,&nbsp;Lin Yun,&nbsp;Afang Zhang,&nbsp;Wen Li","doi":"10.1007/s10118-026-3715-5","DOIUrl":"10.1007/s10118-026-3715-5","url":null,"abstract":"<div><p>Chiral hydrogels derived from helical polymers are attractive as intelligent chiral materials due to the combination of polymer helicity and hydrogel characteristics. Here, we report the synthesis and characterization of chiral hydrogels from helical thermoresponsive dendronized poly(phenylacetylene)s <i>via</i> dynamic covalent acylhydrazone crosslinking, which are responsive to temperature, pH and redox. Two types of helical copolymers, featuring dendritic oligoethylene glycol (OEG) units terminated with either methoxyl or ethoxyl groups, were employed as precursors to afford distinct overall hydrophilicity. These precursors exhibited unprecedented thermoresponsive behavior attributed to the densely grafted dendritic OEGs, with cloud points (<i>T</i>_cps) primarily governed by the terminal groups (methoxyl versus ethoxyl). To impart multi-responsiveness, a disulfide-containing crosslinker was selected for hydrogel formation. Gelation was conducted at three different temperatures—freezing temperature, room temperature (below <i>T</i>_cp), and elevated temperature (above <i>T</i>_cp)—yielding hydrogels with tunable responsiveness to temperature, pH, and redox conditions. The resulting hydrogels displayed stabilized helicity, along with good self-healing properties, excellent compressibility and robust mechanical performance. Preliminary biocompatibility assays indicated low cytotoxicity, underscoring their potential for biomedical applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"2880 - 2890"},"PeriodicalIF":4.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909448","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}

{"title":"Two-way Shape Memory Effect of Polycaprolactone-based Polyurethane via Synergistic Role of Hydrogen Bonding and Crystallization Tuned by Malic Acid","authors":"Xue-Qing Li,&nbsp;Shuai Lu,&nbsp;Jun-Jie Tan,&nbsp;Bo Lv,&nbsp;Hong-Ye Yan,&nbsp;Yan Tang,&nbsp;Yu Zhou,&nbsp;Yang Zhou,&nbsp;Hong-Xiang Chen","doi":"10.1007/s10118-026-3686-6","DOIUrl":"10.1007/s10118-026-3686-6","url":null,"abstract":"<div><p>Semi-crystalline polymers can obtain a broad melting transition by copolymerization or blending and show a two-way shape memory effect (2W-SME) under stress-free conditions. However, intricate interactions between polymers are not easily controlled. It is still challenging for semi-crystalline polymers to obtain a two-way shape memory effect by broadening the melting transition. Here, we prepared polycaprolactone (PCL)-based cross-linked polyurethane by using malic acid as a side chain, thereby exploring the relationship between malic acid and the crystallinity of PCL or 2W-SME. The results showed that the incorporation of malic acid broadened the melting transition and improved the two-way shape memory behavior of the PCL-based cross-linked polyurethane. The influence of malic acid on the dynamic response mechanism of polyurethane was studied using <i>in situ</i> polarized optical microscopy (POM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. The investigation revealed that the malic acid side chain plays a dual role by adjusting the crystallization behavior and strengthening the hydrogen-bonding network in the two-way shape memory process. This work provides a versatile strategy for the structural design of two-way shape memory polymers.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"3042 - 3052"},"PeriodicalIF":4.6,"publicationDate":"2026-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909425","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}

{"title":"Mechanical Bonds Unlock Rapid Stress Relaxation in Covalent Adaptable Networks via Topology-preserving Chain Sliding","authors":"Jun Zhao,&nbsp;Lin Cheng,&nbsp;Zhao-Ming Zhang,&nbsp;Wei Yu,&nbsp;Xu-Zhou Yan","doi":"10.1007/s10118-026-3735-1","DOIUrl":"10.1007/s10118-026-3735-1","url":null,"abstract":"<div><p>Covalent adaptable networks (CANs) have emerged as versatile platforms for sustainable polymer materials, where precise control over the dissociation/exchange kinetics of dynamic covalent bonds is essential for tuning their viscoelastic behaviors. Herein, we introduce a topology-preserving strategy to accelerate network relaxation by embedding slidable mechanically interlocked cross-links into vinylogous urethane-based CANs, yielding mechanically interlocked vitrimers (MIVs). The mechanically bonded junctions are constructed by incorporating kinetically stable acetoacetate-functionalized [2]pseudorotaxane cross-linkers through catalyst-free polymerization with diamines. Although exhibiting higher glass-transition temperatures than a control network with identical cross-linking density but fixed cross-links, the representative MIV<b>-2</b> maintains comparable ductility while displaying greater toughness, indicating that the slidable cross-links effectively enhance chain sliding. At elevated temperatures, this chain sliding prominently accelerates stress relaxation in MIV<b>-2</b>, showing a substantial reduction in the apparent activation energy for vinylogous urethane exchange compared with the control (10.3 versus 21.2 kJ/mol). Unlike the control with fixed crosslinks, the chain motion enabled by mechanical bonds enhances the diffusion of dynamic covalent moieties, thereby effectively promoting bond exchange throughout the network. Owing to the associative nature of vinylogous urethane exchange, the mechanically bonded cross-links remain topologically constrained on the polymer chains during relaxation. Consequently, the accelerated stress relaxation originates from mechanical-bond-mediated chain sliding rather than defect generation, clearly distinguishing MIVs from defect-mediated dual-dynamic CANs designs commonly employed to promote relaxation. These results disclose how the mechanically interlocked structures regulate chemical reactions in cross-linked polymer networks, establishing a novel strategy of topology-engineering guided structural design for smart multidynamic polymers.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 7","pages":"2051 - 2061"},"PeriodicalIF":4.6,"publicationDate":"2026-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148465996","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}

{"title":"A Self-antibacterial Chitosan-based Polymeric Fluorescent Probe with a Dual-lock Strategy for Ultrafast Detection of Fe3+ in Water System","authors":"Xin-Xin Liu,&nbsp;Meng-Ping Wang,&nbsp;Yue Liu,&nbsp;Shi-Yu Wang,&nbsp;Xia Feng,&nbsp;Guang-Jiu Zhao","doi":"10.1007/s10118-026-3639-0","DOIUrl":"10.1007/s10118-026-3639-0","url":null,"abstract":"<div><p>In this work, a novel polymeric fluorescent probe, chitosan grafting coumarin-3-carboxylic acid (CSC) was designed and synthesized by a one-step condensation in solution. The probe exhibited dual functionality, serving as a highly selective sensor for Fe³⁺ and demonstrating intrinsic antibacterial activity. Coumarin modification imparts unique morphological characteristics and enhances water solubility in chitosan. The CSC probe demonstrated blue fluorescence quenching upon Fe³⁺ addition, and the presence of multiple binding sites for Fe³⁺ on the chitosan chains endowed CSC with rapid recognition capability (within 30 s) and high sensitivity detection limit (2.58 µmol/L). The ultrafast and specific detection of Fe³⁺ was attributed to the dual-lock coordination cage formed between the abundant hydroxyl groups of chitosan and the carbonyl group of coumarin. Fluorescence quenching primarily originates from the fast formation of complexes <i>via</i> effective orbital overlap and excited-state electron transfer from the fluorophore to Fe³⁺. Its good photostability and acceptable reusability confirm its potential for practical and cost-effective sensing applications. The CSC probe was successfully applied for the quantitative detection of Fe³⁺ in real water samples and the study of effective antibacterial activity. This work presents a multifunctional platform that combines sensitive metal ion sensing with antimicrobial properties, which holds significant promise for environmental monitoring and biomedical applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 7","pages":"2248 - 2257"},"PeriodicalIF":4.6,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148465377","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}

{"title":"From Molecular Defect to Macroscopic Performance: Manipulating Dichroism and Mechanics in Iodine-doped Poly(vinyl alcohol) via Ethylene Incorporation","authors":"Liang-Peng You,&nbsp;Jia-Yu Xie,&nbsp;Yao Li,&nbsp;Xin Guang,&nbsp;Wei Chen","doi":"10.1007/s10118-026-3693-7","DOIUrl":"10.1007/s10118-026-3693-7","url":null,"abstract":"<div><p>Molecular chain defect engineering is a pivotal strategy for tailoring the macroscopic properties of polymeric materials. However, establishing a definitive relationship between molecular-level defects and bulk material performance remains challenging, due to the difficulty in precisely controlling not only the molecular architecture but also the subsequent chain packing, which critically governs material performance. In this work, we demonstrate that introducing ethylene units as chain defects into poly(vinyl alcohol) (PVA) enables precise modulation of the dichroism in iodine-doped PVA polarizers. This approach allows for concurrent control over the iodine-PVA complexation, the crystalline network and the mechanical properties. The dichroic behavior originates from the formation of oriented I₃⁻ and I₅⁻ species, with I₃⁻ absorbing between 400–520 nm and I₅⁻ between 520–780 nm. Therefore, optimizing optical performance—namely transmittance and polarization efficiency—requires careful tuning of the I₃⁻/I₅⁻ ratio and their overall concentration. The incorporation of ethylene defects addresses this need through three synergistic effects: (1) It increases the I₃⁻/I₅⁻ ratio by shortening the vinyl-alcohol sequence length in the amorphous regions, given that ethylene unit does not complex with iodine; (2) It reduces the overall crystallinity, as ethylene units are excluded from the crystalline domains; (3) It weakens intermolecular interactions (reflected by an increased Flory-Huggins parameter), which lowers the modulus but enhances drawability. This study illustrates how molecular-level defect engineering can be effectively translated into precise control over both chemical complexation and physical networks, thereby enabling the simultaneous manipulation of optical and mechanical properties in polymer materials.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"3092 - 3103"},"PeriodicalIF":4.6,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909796","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}

{"title":"Polymeric Nanomedicines for Comprehensive Regulation of Tumor Microenvironment","authors":"Hui-Xin Li,&nbsp;Rui-Ying Wu,&nbsp;Xin-Tong Mao,&nbsp;Xiao-Rui Zhou,&nbsp;Kai Hao,&nbsp;Hua-Yu Tian","doi":"10.1007/s10118-026-3678-6","DOIUrl":"10.1007/s10118-026-3678-6","url":null,"abstract":"<div><p>Cancer immunotherapy, which harnesses the host immune system to combat cancer, has advanced into preclinical and clinical trials. However, the tumor microenvironment (TME) usually promotes tumor angiogenesis and induces immune tolerance. Recently, polymeric nanomedicines with comprehensive regulation of the TME have attracted research interest. Compared with others, polymeric nanomedicines have outstanding characteristics, including facile preparation, improved tumor penetration, longer blood circulation, and better bioavailability. In particular, polymeric nanomedicines hold great potential for integrating combined treatments and imaging methods to concurrently modulate and trace the functional processes of multiple immune cells. This review summarizes the advances in polymeric nanomedicine-based strategies for TME regulation, including the regulation of TME stromal cells, the immune microenvironment matrix, and vasculature. Furthermore, the development of comprehensive polymeric nanomedicine-based theragnostic platforms integrated with imaging segments is briefly introduced.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2427 - 2452"},"PeriodicalIF":4.6,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782477","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}

{"title":"Durable Anti-fogging and Abrasion-resistant Coatings Based on Polyoxometalates-Hydrophilic Resin Composites with Enhanced Cohesion and Adhesion","authors":"Xu Yang,&nbsp;Shu-Di Ying,&nbsp;Cong-Cong Zhai,&nbsp;Yu-Lin Yin,&nbsp;Jian-chao Hou,&nbsp;Pan-Pan Zhao,&nbsp;Wen-Ting Li,&nbsp;Shuai-Jun Yang,&nbsp;Jia-Chen Ma,&nbsp;Xu-Chuan Jiang","doi":"10.1007/s10118-026-3690-x","DOIUrl":"10.1007/s10118-026-3690-x","url":null,"abstract":"<div><p>Achieving long-term anti-fogging performance while maintaining high visible-light transmittance is of critical importance for transparent substrates. However, challenges remain in achieving satisfactory abrasion resistance and weatherability of anti-fogging coatings across different substrates. In this work, an organic-inorganic hybrid anti-fogging coating was developed by integrating a highly adhesive hydrophilic polymer resin with polyoxometalates (POMs). The hydroxyl groups along the polymer chains provide excellent adhesion, while the presence of hydrophilic ionic groups facilitates the rapid formation of a continuous water film upon exposure to water vapor. Moreover, the multiple protons carried by the POMs not only form interfacial bonding with the substrate to further enhance adhesion, but also form multiple hydrogen bonding interactions with the polymer chains to strengthen the coating’s cohesion and reduce its surface roughness. As a result, the coating exhibits outstanding abrasion resistance, maintaining excellent anti-fogging performance even after 1200 abrasion cycles under a 500 g load. Furthermore, the strong UV absorption of POMs prevents photoaging of the polymer resin in outdoor environments, imparting remarkable weather resistance. After 240 h of accelerated UV aging (0.68 W/m², 60 °C), the coating still delivers effective anti-fogging functionality. This study provides a generalizable strategy for designing environmentally friendly, long-lasting anti-fogging coatings with promising applications in glass, optical devices, and agricultural films.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"3156 - 3166"},"PeriodicalIF":4.6,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909795","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}

{"title":"Improvements of Hydrophobicity and Toughness of Epoxy Coatings Modified with Hydroxyl-terminated Fluororubber","authors":"Yu-Tong Zhou,&nbsp;You-Fan Wu,&nbsp;Qian-Qian Yang,&nbsp;Hai-Bao Zhang,&nbsp;Ting Zhang,&nbsp;Hao-Yan Guo,&nbsp;Zhen-Jun Wang,&nbsp;Gang Li","doi":"10.1007/s10118-026-3688-4","DOIUrl":"10.1007/s10118-026-3688-4","url":null,"abstract":"<div><p>To address the brittleness of epoxy resin (EP) caused by high crosslinking density, the modification of epoxy resin with flexible rubber segments was proposed in this work. Bisphenol A-type epoxy resin (E51) was reacted with isocyanate-terminated groups <i>via</i> an addition reaction to prepare a prepolymer (E51-TDI). Subsequently, E51-TDI was grafted with hydroxyl-terminated fluororubber (HTFR) to synthesize a high-toughness fluorinated epoxy resin (E51-TDI-HTFR) with side chains. A mixture of E51-TDI-HTFR and curing agent (D230) was used to fabricate the coating. The chemical structure of the modified epoxy resin and the thermal, hydrophobic, mechanical, and cavitation erosion resistance of the coatings were investigated. When the HTFR concentration was 25%, the epoxy coating exhibited the best hydrophobicity, mechanical properties, and cavitation resistance. The contact angle of the modified epoxy resin was increased to 110°. Meanwhile, the elongation at break increased to 46.40%, which was approximately four times that of the unmodified coatings. The fracture surface gradually became rougher as the HTFR content increased, indicating a ductile fracture characteristic. Although the addition of HTFR slightly reduced the glass transition temperature, it maintained good thermal stability. In addition, the cavitation erosion resistance of the epoxy coatings was enhanced. This study provides theoretical support for the development of high-toughness and hydrophobic epoxy coatings.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"3129 - 3141"},"PeriodicalIF":4.6,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909793","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}