{"title":"体积分数对A(BC)2B多嵌段共聚物分层结构的影响:在高性能复合材料设计中的辅助作用","authors":"Yuxuan Gao, Mengchen Yin, Yuci Xu","doi":"10.1016/j.coco.2025.102505","DOIUrl":null,"url":null,"abstract":"<div><div>We study the effect of volume fraction on the hierarchical structures in the A(BC)<sub>2</sub>B multiblock copolymers using the self-consistent field theory to assist in the design of high performance polymer-based composites. The volume fraction of long-tail A block <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span> greatly impacts on the large-scale structures. For example, a transition sequence of <span><math><mrow><msub><mrow><mi>C</mi></mrow><mrow><mn>5</mn></mrow></msub><mo>→</mo><msub><mrow><mi>C</mi></mrow><mrow><mn>3</mn></mrow></msub><mo>→</mo><msub><mrow><mi>G</mi></mrow><mrow><mn>5</mn></mrow></msub><mo>→</mo><msub><mrow><mi>L</mi></mrow><mrow><mn>5</mn></mrow></msub><mo>→</mo><mover><mrow><msub><mrow><mi>C</mi></mrow><mrow><mn>5</mn></mrow></msub></mrow><mo>¯</mo></mover></mrow></math></span> at low <span><math><mrow><msub><mrow><mi>χ</mi></mrow><mrow><mi>B</mi><mi>C</mi></mrow></msub><mi>N</mi></mrow></math></span> is observed by increasing <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span>. In addition, the A volume fraction can also affect small-scale structures, where large <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span> prefers hierarchical structures with fewer mid-thin layers. Subsequently, we explore the effect of the <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>B</mi></mrow></msub><mo>/</mo><msub><mrow><mi>f</mi></mrow><mrow><mi>C</mi></mrow></msub></mrow></math></span> ratio on the stability of the hierarchical structure, where a large <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>B</mi></mrow></msub><mo>/</mo><msub><mrow><mi>f</mi></mrow><mrow><mi>C</mi></mrow></msub></mrow></math></span> ratio leads to the hierarchical structures with less mid-thin layer for the hierarchical lamellae and hierarchical cylinder at large <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub><mo>></mo><mn>0</mn><mo>.</mo><mn>5</mn></mrow></math></span>. Interestingly, for the hierarchical cylinder with <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub><mo><</mo><mn>0</mn><mo>.</mo><mn>5</mn></mrow></math></span>, a large <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>B</mi></mrow></msub></math></span> block results in the hierarchical cylinder with a more mid-thin layer.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102505"},"PeriodicalIF":7.7000,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of volume fraction on the hierarchical structures in A(BC)2B multiblock copolymers: Assisting in the design of high-performance composites\",\"authors\":\"Yuxuan Gao, Mengchen Yin, Yuci Xu\",\"doi\":\"10.1016/j.coco.2025.102505\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We study the effect of volume fraction on the hierarchical structures in the A(BC)<sub>2</sub>B multiblock copolymers using the self-consistent field theory to assist in the design of high performance polymer-based composites. The volume fraction of long-tail A block <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span> greatly impacts on the large-scale structures. For example, a transition sequence of <span><math><mrow><msub><mrow><mi>C</mi></mrow><mrow><mn>5</mn></mrow></msub><mo>→</mo><msub><mrow><mi>C</mi></mrow><mrow><mn>3</mn></mrow></msub><mo>→</mo><msub><mrow><mi>G</mi></mrow><mrow><mn>5</mn></mrow></msub><mo>→</mo><msub><mrow><mi>L</mi></mrow><mrow><mn>5</mn></mrow></msub><mo>→</mo><mover><mrow><msub><mrow><mi>C</mi></mrow><mrow><mn>5</mn></mrow></msub></mrow><mo>¯</mo></mover></mrow></math></span> at low <span><math><mrow><msub><mrow><mi>χ</mi></mrow><mrow><mi>B</mi><mi>C</mi></mrow></msub><mi>N</mi></mrow></math></span> is observed by increasing <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span>. In addition, the A volume fraction can also affect small-scale structures, where large <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span> prefers hierarchical structures with fewer mid-thin layers. Subsequently, we explore the effect of the <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>B</mi></mrow></msub><mo>/</mo><msub><mrow><mi>f</mi></mrow><mrow><mi>C</mi></mrow></msub></mrow></math></span> ratio on the stability of the hierarchical structure, where a large <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>B</mi></mrow></msub><mo>/</mo><msub><mrow><mi>f</mi></mrow><mrow><mi>C</mi></mrow></msub></mrow></math></span> ratio leads to the hierarchical structures with less mid-thin layer for the hierarchical lamellae and hierarchical cylinder at large <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub><mo>></mo><mn>0</mn><mo>.</mo><mn>5</mn></mrow></math></span>. Interestingly, for the hierarchical cylinder with <span><math><mrow><msub><mrow><mi>f</mi></mrow><mrow><mi>A</mi></mrow></msub><mo><</mo><mn>0</mn><mo>.</mo><mn>5</mn></mrow></math></span>, a large <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>B</mi></mrow></msub></math></span> block results in the hierarchical cylinder with a more mid-thin layer.</div></div>\",\"PeriodicalId\":10533,\"journal\":{\"name\":\"Composites Communications\",\"volume\":\"58 \",\"pages\":\"Article 102505\"},\"PeriodicalIF\":7.7000,\"publicationDate\":\"2025-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composites Communications\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S245221392500258X\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Communications","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S245221392500258X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
Effect of volume fraction on the hierarchical structures in A(BC)2B multiblock copolymers: Assisting in the design of high-performance composites
We study the effect of volume fraction on the hierarchical structures in the A(BC)2B multiblock copolymers using the self-consistent field theory to assist in the design of high performance polymer-based composites. The volume fraction of long-tail A block greatly impacts on the large-scale structures. For example, a transition sequence of at low is observed by increasing . In addition, the A volume fraction can also affect small-scale structures, where large prefers hierarchical structures with fewer mid-thin layers. Subsequently, we explore the effect of the ratio on the stability of the hierarchical structure, where a large ratio leads to the hierarchical structures with less mid-thin layer for the hierarchical lamellae and hierarchical cylinder at large . Interestingly, for the hierarchical cylinder with , a large block results in the hierarchical cylinder with a more mid-thin layer.
期刊介绍:
Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.