IF 4.1 2区化学

Polymer Pub Date : 2025-07-09 DOI: 10.1016/j.polymer.2025.128805

Dianliang Zhang , Yun Ding , Wenchao Sun , Wenzhen Qian , Weirong Liu , Qing Yang

{"title":"Utilization of plasma-induced graft polymerization to modify anion-exchanging membranes for enhanced selective separation of organic/inorganic salts","authors":"Dianliang Zhang , Yun Ding , Wenchao Sun , Wenzhen Qian , Weirong Liu , Qing Yang","doi":"10.1016/j.polymer.2025.128805","DOIUrl":"10.1016/j.polymer.2025.128805","url":null,"abstract":"<div><div>The development of technologies for the selective removal of specific dissolved substances (inorganic salts) from industrial wastewater, which contains similar components (organic salts), remains a significant challenge. In this study, plasma technology was employed to induce the grafting of sodium methacrylate sulfonate on the surface of anion-exchange membrane to form a functional negatively charged layer. Based on the Donnan effect, the membranes exhibited differential retention capabilities for organic and inorganic anions. The primary characteristics of the membranes, including their microscopic morphology, chemical composition, and membrane properties, were thoroughly characterized and analyzed. SEM characterization and ζ-potential analysis revealed that the surface of the modified membrane formed a layer with a thickness of 408 nm and displaying pronounced negative charge density (−10.1 mV). The selective separation properties of the membranes in systems comprising inorganic salts (NaCl) and organic salts were evaluated through electrodialysis experiments. The findings indicated that the prepared AMS-AEM membranes demonstrated markedly higher retention efficiencies for sodium tartrate (95.8 %) and sodium citrate (96.3 %). Furthermore, the study investigated the impact of inorganic salt (NaCl) content on separation performance and elucidated the underlying mechanism.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128805"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144594731","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

Effects of processing conditions on the crater-like surface of biaxially oriented polypropylene film 加工条件对双轴取向聚丙烯薄膜表面凹坑的影响

IF 4.1 2区化学

Polymer Pub Date : 2025-07-09 DOI: 10.1016/j.polymer.2025.128798

Chunbo Zhang , Tianyi Ma , Ming Wang , Hongchao Lu , Hongwei Shi , Longgui Zhang , Dali Gao , Guoming Liu , Dujin Wang

{"title":"Effects of processing conditions on the crater-like surface of biaxially oriented polypropylene film","authors":"Chunbo Zhang , Tianyi Ma , Ming Wang , Hongchao Lu , Hongwei Shi , Longgui Zhang , Dali Gao , Guoming Liu , Dujin Wang","doi":"10.1016/j.polymer.2025.128798","DOIUrl":"10.1016/j.polymer.2025.128798","url":null,"abstract":"<div><div>To understand how the processing conditions influence the formation of the crater-like surface morphology of biaxially oriented polypropylene (BOPP) capacitor films, in this work, we investigated the structure of cast sheets and BOPP films obtained by a five-layer co-extrusion equipment under different sheet cast-extrusion conditions (thickness of cast sheet and chill-roll temperature) and biaxial stretching temperatures. Multiple characterization techniques, including wide/small angle X-ray scattering (WAXS/SAXS), differential scanning calorimetry (DSC), and polarized light optical microscopy (PLOM) were used to establish the relationship between the structure of the cast sheet and the surface morphology. The results indicate that, within the process conditions investigated in this study, higher thickness (300 and 500 μm), higher chill-roll temperature (90 °C), and appropriate stretching temperature (145 and 150 °C) are beneficial to the formation of crater-like surfaces. By micro-focus X-ray diffraction mapping, the spatial distribution of <em>β</em> crystal along the normal direction of the cast sheet was characterized, thus further elucidating the role of the <em>β</em> crystal in the roughening process of BOPP capacitor films.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128798"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586819","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

High strength, tough and fast self-healing polyurea-urethane adhesive for adaptable, durable solid propellants 高强度，坚韧和快速自愈聚氨酯粘合剂适用于适应性强，耐用的固体推进剂

IF 4.1 2区化学

Polymer Pub Date : 2025-07-09 DOI: 10.1016/j.polymer.2025.128801

Wei Wang , Lan Cao , Chengbao Liu , Li Cheng , Yishan Wang , Kangqing Deng

{"title":"High strength, tough and fast self-healing polyurea-urethane adhesive for adaptable, durable solid propellants","authors":"Wei Wang , Lan Cao , Chengbao Liu , Li Cheng , Yishan Wang , Kangqing Deng","doi":"10.1016/j.polymer.2025.128801","DOIUrl":"10.1016/j.polymer.2025.128801","url":null,"abstract":"<div><div>The development of solid propellants is of strategic importance for supporting rocket application in aerospace field. However, the currently employed propellant materials inevitably encounter microcracks and defects generated in the storage, transportation and loading process, resulting in possible local overheating and undesired explosion accidents. Herein, a robust, strong and fast room-temperature self-healing polyurea-urethane (PU) adhesive was constructed based on the synergy of multiple hydrogen bonds reorganization and disulfide exchange reactions. The PU adhesive owns mechanical strength (38.13 MPa), elongation at break (947.17%), and toughness (109.65 MJ m<sup>−3</sup>) and rapid room-temperature (RT) self-healing efficiency (83.19% at RT for 24 h), forming strong RT self-healing propellant adhesive and surpassing many reported propellant adhesive systems to date. Moreover, benefiting from the dynamic recombination of widely dispersed hydrogen bonds and disulfide bonds, the as-prepared simulated propellant exhibits satisfactory crack-healing performance at RT for 24 h. This work provides valuable insight and achievable approach for promoting the exploring of high-performance RT self-healing propellants.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128801"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586822","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

Multifunctional highly stretchable hydrogel with dual strain/temperature sensing for cardiac rehabilitation training 用于心脏康复训练的具有双重应变/温度传感的多功能高拉伸水凝胶

IF 4.1 2区化学

Polymer Pub Date : 2025-07-09 DOI: 10.1016/j.polymer.2025.128803

Yangyang Shen , Yi Zhao , Minghua Tian , Yanlong Zhao , Wenke Yang , Xuwei Zheng , Wei Zhai , Hu Liu

{"title":"Multifunctional highly stretchable hydrogel with dual strain/temperature sensing for cardiac rehabilitation training","authors":"Yangyang Shen , Yi Zhao , Minghua Tian , Yanlong Zhao , Wenke Yang , Xuwei Zheng , Wei Zhai , Hu Liu","doi":"10.1016/j.polymer.2025.128803","DOIUrl":"10.1016/j.polymer.2025.128803","url":null,"abstract":"<div><div>Conductive hydrogels have gained enormous attention for their promising applications in personal health management, medical rehabilitation and human-machine interaction. However, it is still very necessary to develop a multifunctional hydrogel intrinsically integrating dual strain/temperature sensing and thermochromism. Herein, a multifunctional and highly stretchable PAM-PNIPAm-PEDOT: PSS (MNP) hydrogel was developed using a simple and efficient free radical polymerization strategy. The MNP hydrogel not only demonstrates good stretchability (1050 %), transparency and adhesion performance, but also possesses excellent strain sensing performance including wide sensing range (1050 % strain), high sensitivity (maximum GF of 5.72), ultralow detecting limit (0.5 % strain) and good cycle stability (1500 stretching-releasing cycles). These features facilitate its integration into wearable systems, such as smart gloves for gesture recognition and Morse-code-based information transmission. Additionally, its application in cardiac rehabilitation has been validated through real-time monitoring of lower limb movement and temperature fluctuations, offering valuable feedback for personalized training and health management. Moreover, the MNP hydrogel also demonstrates reversible transparency conversion and exceptional temperature-sensing capabilities, enhancing its potential for personalized cardiac rehabilitation and optimizing training intensity.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128803"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144594896","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

3D-Printable gelatin-based organohydrogel for flexible wearable pressure sensors 用于柔性可穿戴压力传感器的3d打印明胶基有机水凝胶

IF 4.1 2区化学

Polymer Pub Date : 2025-07-09 DOI: 10.1016/j.polymer.2025.128784

Xinlong Liu , Xitong Shang , Xiaofeng Zhu , Longmeng Du , Qifan Yang , Liping Ren , Zaixing Jiang , Wenhui Zheng , Wei Li

{"title":"3D-Printable gelatin-based organohydrogel for flexible wearable pressure sensors","authors":"Xinlong Liu , Xitong Shang , Xiaofeng Zhu , Longmeng Du , Qifan Yang , Liping Ren , Zaixing Jiang , Wenhui Zheng , Wei Li","doi":"10.1016/j.polymer.2025.128784","DOIUrl":"10.1016/j.polymer.2025.128784","url":null,"abstract":"<div><div>Growing interest in conductive organohydrogels for wearable flexible strain sensors has significantly increased the demand for their stability and versatility. In this work, stable, and 3D-printed organohydrogels were prepared by utilizing the dynamic hydrogen bonding interaction between Gelatin and <span>dl</span>-Thioctic acid (TA), along with the Hofmeister effect between gelatin and ammonium sulfate. This double network structure endows the hydrogel with outstanding mechanical robustness, excellent low-temperature stability, and rapid gelation behavior suitable for 3D printing. After 200 compression loading-unloading cycles, the organohydrogel retained a remarkably high stress level, maintaining 96 % of its initial stress, and displayed a consistent electrical signal throughout each cycle. Furthermore, even after 7 days at room temperature, the organohydrogel preserved excellent stress (maintained at 92 %), electrical performance, and sensitivity in pressure signal recognition during extended cycle tests. The organohydrogel also supported 3D printing and was used to construct sensor arrays. Its excellent stability and versatility enhanced the potential applications in wearable pressure sensors.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128784"},"PeriodicalIF":4.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586821","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

Mechanically very strong anisotropic polyvinyl alcohol-sodium alginate hydrogels prepared by salting out under stretching 在拉伸作用下盐析法制备了具有很强力学各向异性的聚乙烯醇-海藻酸钠水凝胶

IF 4.1 2区化学

Polymer Pub Date : 2025-07-08 DOI: 10.1016/j.polymer.2025.128785

Lin Yao , Lin Zhang , Wendi Xie , Yunqi Shi , Huiliang Wang

{"title":"Mechanically very strong anisotropic polyvinyl alcohol-sodium alginate hydrogels prepared by salting out under stretching","authors":"Lin Yao , Lin Zhang , Wendi Xie , Yunqi Shi , Huiliang Wang","doi":"10.1016/j.polymer.2025.128785","DOIUrl":"10.1016/j.polymer.2025.128785","url":null,"abstract":"<div><div>Preparation of hydrogels like biological tissues in microstructures and mechanical properties is of great significance for the practical applications of hydrogels. Here we report a simple but effective salting out under stretching method for preparing mechanically very strong anisotropic hydrogels by simultaneous combining salting out and pre-stretching methods. Weak polyvinyl alcohol (PVA)-sodium alginate (SA) hydrogels are firstly prepared by drying-reswelling method or classic freezing-thawing method, they are pre-stretched to a given stretching ratio and then soaked in an ammonium sulfate solution under stretching. The salting out under stretching induces the orientation of polymer chains and the formation of more and stronger hydrogen bonds between the polymer chains, endowing the PVA-SA hydrogels with obvious anisotropic microstructures and excellent mechanical properties. The PVA-SA hydrogels exhibit ultra-high tensile strength and elastic modulus up to 38.60 MPa and 11.68 MPa, respectively. The hydrogels also show good electric conductivity. This work provides a new strategy for the preparation of mechanically very strong anisotropic hydrogels, which may find many practical applications.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128785"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586824","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

Modulating electrochromic performance of conjugated polymers based on benzo[1,2-c:4,5-c']dithiophene-4,8-dione acceptor by employing the different linkers and active polymeric groups 利用不同的连接剂和活性聚合物基团调节苯并[1,2-c:4,5-c']二噻吩-4,8-二酮受体共轭聚合物的电致变色性能

IF 4.1 2区化学

Polymer Pub Date : 2025-07-08 DOI: 10.1016/j.polymer.2025.128778

Pengjie Chao , Qicheng Su , Yuqing Liao , Daize Mo , Lanqing Li , Donghua Fan , Yizhong Shi , Dongling Shen

{"title":"Modulating electrochromic performance of conjugated polymers based on benzo[1,2-c:4,5-c']dithiophene-4,8-dione acceptor by employing the different linkers and active polymeric groups","authors":"Pengjie Chao , Qicheng Su , Yuqing Liao , Daize Mo , Lanqing Li , Donghua Fan , Yizhong Shi , Dongling Shen","doi":"10.1016/j.polymer.2025.128778","DOIUrl":"10.1016/j.polymer.2025.128778","url":null,"abstract":"<div><div>Four donor-acceptor-donor (D-A-D) type monomers EEEBD, TTTBD, TEEBD and ETTBD, were designed and synthesized by varying the different π-bridges and terminal active groups in monomeric backbone based on the benzo [1,2-c:4,5-c']dithiophene-4,8-dione acceptor unit. The corresponding polymers PEEEBD, PTTTBD, PTEEBD and PETTBD were synthesized by electrochemical polymerization. The structure-property relationships of these monomers and polymers, such as optical properties, electrochemical behavior, band gap, optical contrast and electrochromic performance were comparatively investigated. EEEBD exhibited the most red-shifted absorption peak at 521 nm and the lowest onset oxidation potential (<em>E</em><sub>onset</sub>) of 0.11 V among these monomers. Notably, in comparison with PEEEBD, polymers PTTTBD, PTEEBD and PETTBD achieved much higher optical contrast of 23.50 % at 1100 nm, 18.76 % at 660 nm and 32.48 % at 1100 nm, respectively, which is highly advantageous for electrochromic applications in the visible and near-infrared regions. PTTTBD exhibited excellent electrochromic performance and displayed a color transition from dark purple in the reduced state to black in the oxidation state, and achieved the best coloration efficiency (CE) value of 265.68 cm<sup>2</sup> C<sup>−1</sup> at 1100 nm among these polymers. These results indicated that varying the different π-bridges and terminal active groups in polymer backbone based on the benzo [1,2-c:4,5-c']dithiophene-4,8-dione acceptor could improve the electrochromic performance, opening up a new page to develop the high-performance electrochromic polymers.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128778"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144578474","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

Synergistic enhancement of mechanical, adhesive, thermal and ablation performance of PDMS based on double bond epoxidation modification 基于双键环氧化改性的PDMS机械、粘接、热、烧蚀性能协同增强

IF 4.1 2区化学

Polymer Pub Date : 2025-07-08 DOI: 10.1016/j.polymer.2025.128789

Gengchen Yang , Yuan Wang , Weiyi Ding , Hongbin Tian , Bojie Fu , Shengtai Zhou , Jinni Deng , Liwei Yan , Mei Liang , Zhuo Shi , Shuang Xia , Huawei Zou

{"title":"Synergistic enhancement of mechanical, adhesive, thermal and ablation performance of PDMS based on double bond epoxidation modification","authors":"Gengchen Yang , Yuan Wang , Weiyi Ding , Hongbin Tian , Bojie Fu , Shengtai Zhou , Jinni Deng , Liwei Yan , Mei Liang , Zhuo Shi , Shuang Xia , Huawei Zou","doi":"10.1016/j.polymer.2025.128789","DOIUrl":"10.1016/j.polymer.2025.128789","url":null,"abstract":"<div><div>As a typical flexible thermal protection material, the application of pure polydimethylsiloxane (PDMS) is greatly limited by its poor adhesion, insufficient mechanical properties and anti-ablation performance. This study proposes an efficient strategy of bulk modification to prepare epoxy-modified liquid silicone rubber (ECVS@PDMS) by in-situ double bond epoxidation, which retained the main chain structure of polysiloxane and achieved good compatibility with PDMS. The modified ECVS@PDMS simultaneously addresses the aforementioned limitations of PDMS, with the tensile strength and adhesion strength increased by 697 % and 260 %, respectively, compared to pure PDMS. Besides, the initial decomposition temperature increases by 44.8 °C and the residual carbon at 800 °C increases by 19.6 %. More importantly, the anti-ablation performance is greatly enhanced, as ECVS promotes the formation of well-structured SiC ceramic crystals during ablation, effectively resisting the thermal erosion. This bulk modification method provides a novel design approach for the preparation of PDMS-based flexible ablation resistant coating with outstanding overall performance.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128789"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144587015","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

Influence of anion in viologen derivatives on the performance of all-in-one plasticized ionogel-based electrochromic devices 紫外光衍生物中阴离子对一体化塑化离子凝胶基电致变色器件性能的影响

IF 4.1 2区化学

Polymer Pub Date : 2025-07-07 DOI: 10.1016/j.polymer.2025.128782

Seung-Ju Oh , Hyun-Jeong Kim , Seung-Eun Choi , Jun-Mo Yoon , Woong Heo , Yoon-Chae Nah , Jin Woo Bae

{"title":"Influence of anion in viologen derivatives on the performance of all-in-one plasticized ionogel-based electrochromic devices","authors":"Seung-Ju Oh , Hyun-Jeong Kim , Seung-Eun Choi , Jun-Mo Yoon , Woong Heo , Yoon-Chae Nah , Jin Woo Bae","doi":"10.1016/j.polymer.2025.128782","DOIUrl":"10.1016/j.polymer.2025.128782","url":null,"abstract":"<div><div>All-in-one ionogel-based electrochromic devices (AI-ECDs) have been widely applied for displays, smart windows and encryption devices owing to their resistance to atmosphere humidity and water. This study investigates the anion effect of electrochromic (EC) viologen derivatives on the performance and stability of all-in-one plasticized PVC/Viologen ionogel-based (ApPVI) ECDs. We first modified the EC viologen chromophores with two different counter-anions to diheptyl viologen (DHV): DHV [PF<sub>6</sub>]<sub>2</sub> and DHV [TFSI]<sub>2</sub>. Then, we fabricated two ApPVI-ECDs with the modified electrochromic chromophores containing different counter-anions, respectively. Compared with the DHV [PF<sub>6</sub>]<sub>2</sub>-incorporated ApPVI-ECD, the DHV [TFSI]<sub>2</sub>-incorporated ApPVI-ECD demonstrated superior performance, exhibiting a blue color with a maximum transmittance change of 85.23 %, faster response times <em>(t</em><sub><em>c</em></sub> = 12 s, <em>t</em><sub><em>b</em></sub> = 154 s), and higher coloration efficiency (240.59 cm<sup>2</sup> C<sup>−1</sup>). The DHV [TFSI]<sub>2</sub>-based ApPVI-ECD showed high humidity-resistant properties and thus excellent long-term drive stability, maintaining 96.34 % after 30,000 s. In addition, the DHV [TFSI]<sub>2</sub>-based ApPVI-ECD remained stable after 1000 bending cycles, demonstrating its potential for flexible applications. This enhanced performance is attributed to the higher solubility of the hydrophobic [TFSI]<sub>2</sub> anion in the ApPVI-ECD composed of the hydrophobic PVC, EMIMTFSI, and DBA components. Therefore, the results suggest that the developed DHV [TFSI]<sub>2</sub>-based ApPVI-ECD has promising applications in next-generation flexible displays and other optical devices requiring durability and flexibility.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128782"},"PeriodicalIF":4.1,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144578291","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

Macroscopic order in block copolymer gyroid films by solvent evaporation annealing 用溶剂蒸发退火法研究嵌段共聚物旋转膜的宏观有序性

IF 4.1 2区化学

Polymer Pub Date : 2025-07-07 DOI: 10.1016/j.polymer.2025.128676

René Iseli , Doha Abdelrahman , Cédric Kilchoer , S. Narjes Abdollahi , Thomas A. Kainz , Rushna Quddus , Yibei Gu , Ulrich Wiesner , Bodo D. Wilts , Viola V. Vogler-Neuling , Ullrich Steiner , Ilja Gunkel

{"title":"Macroscopic order in block copolymer gyroid films by solvent evaporation annealing","authors":"René Iseli , Doha Abdelrahman , Cédric Kilchoer , S. Narjes Abdollahi , Thomas A. Kainz , Rushna Quddus , Yibei Gu , Ulrich Wiesner , Bodo D. Wilts , Viola V. Vogler-Neuling , Ullrich Steiner , Ilja Gunkel","doi":"10.1016/j.polymer.2025.128676","DOIUrl":"10.1016/j.polymer.2025.128676","url":null,"abstract":"<div><div>Block copolymer (BCP) self-assembly is a versatile approach for fabricating advanced nanostructured materials with unique properties. Among various nanostructures, gyroid morphologies have attracted attention due to their unique periodic architectures, optical properties, and applications as optical metamaterials. However, the fabrication of these intricate morphologies in large domains with uniform ordering remains challenging, especially in thick films.</div><div>Here, we present a solvent evaporation annealing (SEA) method to produce homogeneously ordered BCP morphologies in thick films. Established to generate order in films with 2D BCP morphologies, SEA employs a two-step evaporation process: rapid evaporation of a volatile solvent to initiate BCP self-assembly, followed by slow evaporation of a non-volatile additive to minimise nucleation rates and promote domain growth. Here, we extend SEA to 3D gyroid-forming systems using a polyisoprene-<em>b</em>-polystyrene-<em>b</em>-poly(ethylene oxide) (ISO) triblock copolymer, producing large, well-ordered domains up to nearly 2mm<sup>2</sup>. Structural analysis of BCP films using cross-polarised light microscopy, small-angle X-ray scattering (SAXS), and focused ion beam (FIB) cross-sectional scanning electron microscopy (SEM) confirms their ordering both in-plane and out-of-plane.</div><div>Our results highlight the efficiency of SEA in generating macroscopically ordered gyroid morphologies and underline its potential as a scalable approach to synthesise ordered functional materials from BCP templates, e.g. optical metamaterials.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"335 ","pages":"Article 128676"},"PeriodicalIF":4.1,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568965","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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