Farid Khelifa, Heike M. A. Ehmann, Abderrahman Lamaoui, Mathieu Surin, Jenifer Rubio-Magnieto, Philippe Dubois, Youssef Habibi
{"title":"纤维素纳米晶体在聚合物膜中的可控分层和组装,用于光学活性涂层","authors":"Farid Khelifa, Heike M. A. Ehmann, Abderrahman Lamaoui, Mathieu Surin, Jenifer Rubio-Magnieto, Philippe Dubois, Youssef Habibi","doi":"10.1002/admi.202400608","DOIUrl":null,"url":null,"abstract":"<p>Nature's most brilliant hues arise from the interaction of light with multilayered- structures of aligned building blocks. Mimicking this hierarchical organization in highly-ordered thin films of liquid crystalline species has attracted increasing attention for potential applications in sensors and optical switching displays. Due to its intriguing ability to organize into optically active materials, cellulose nanocrystals (CNCs) are attracting a strong interest in the scientific community. This study demonstrates that the shear-driven convective assembly technique can be used to stratify in a controlled fashion highly ordered multilayers of rod-like CNC embedded in a protective hydrophobic polymer matrix leading to optically active thin films. The films remain fully transparent even after stratifying 50 layers. Atomic force microscopy analysis reveals that over 87% of the CNCs in the upper layer aligned within ±20° of the withdrawal direction. Notably, the stratification does not disrupt the organization of the underlying layers. The films exhibit strong selective reflections with uniform and intense colors, dependent on the number of stratified layers. This scalable appraoch enables precise control over the optical characteristics of CNC-polymer composite films, presenting opportunities for environmentally friendly applications in pigment-free coatings, security papers, and optical devices.</p>","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"12 7","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202400608","citationCount":"0","resultStr":"{\"title\":\"Controlled Stratification and Assembly of Cellulose Nanocrystals in Polymeric Films Toward Optically Active Coatings\",\"authors\":\"Farid Khelifa, Heike M. A. Ehmann, Abderrahman Lamaoui, Mathieu Surin, Jenifer Rubio-Magnieto, Philippe Dubois, Youssef Habibi\",\"doi\":\"10.1002/admi.202400608\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Nature's most brilliant hues arise from the interaction of light with multilayered- structures of aligned building blocks. Mimicking this hierarchical organization in highly-ordered thin films of liquid crystalline species has attracted increasing attention for potential applications in sensors and optical switching displays. Due to its intriguing ability to organize into optically active materials, cellulose nanocrystals (CNCs) are attracting a strong interest in the scientific community. This study demonstrates that the shear-driven convective assembly technique can be used to stratify in a controlled fashion highly ordered multilayers of rod-like CNC embedded in a protective hydrophobic polymer matrix leading to optically active thin films. The films remain fully transparent even after stratifying 50 layers. Atomic force microscopy analysis reveals that over 87% of the CNCs in the upper layer aligned within ±20° of the withdrawal direction. Notably, the stratification does not disrupt the organization of the underlying layers. The films exhibit strong selective reflections with uniform and intense colors, dependent on the number of stratified layers. This scalable appraoch enables precise control over the optical characteristics of CNC-polymer composite films, presenting opportunities for environmentally friendly applications in pigment-free coatings, security papers, and optical devices.</p>\",\"PeriodicalId\":115,\"journal\":{\"name\":\"Advanced Materials Interfaces\",\"volume\":\"12 7\",\"pages\":\"\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-12-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202400608\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Materials Interfaces\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/admi.202400608\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Materials Interfaces","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/admi.202400608","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Controlled Stratification and Assembly of Cellulose Nanocrystals in Polymeric Films Toward Optically Active Coatings
Nature's most brilliant hues arise from the interaction of light with multilayered- structures of aligned building blocks. Mimicking this hierarchical organization in highly-ordered thin films of liquid crystalline species has attracted increasing attention for potential applications in sensors and optical switching displays. Due to its intriguing ability to organize into optically active materials, cellulose nanocrystals (CNCs) are attracting a strong interest in the scientific community. This study demonstrates that the shear-driven convective assembly technique can be used to stratify in a controlled fashion highly ordered multilayers of rod-like CNC embedded in a protective hydrophobic polymer matrix leading to optically active thin films. The films remain fully transparent even after stratifying 50 layers. Atomic force microscopy analysis reveals that over 87% of the CNCs in the upper layer aligned within ±20° of the withdrawal direction. Notably, the stratification does not disrupt the organization of the underlying layers. The films exhibit strong selective reflections with uniform and intense colors, dependent on the number of stratified layers. This scalable appraoch enables precise control over the optical characteristics of CNC-polymer composite films, presenting opportunities for environmentally friendly applications in pigment-free coatings, security papers, and optical devices.
期刊介绍:
Advanced Materials Interfaces publishes top-level research on interface technologies and effects. Considering any interface formed between solids, liquids, and gases, the journal ensures an interdisciplinary blend of physics, chemistry, materials science, and life sciences. Advanced Materials Interfaces was launched in 2014 and received an Impact Factor of 4.834 in 2018.
The scope of Advanced Materials Interfaces is dedicated to interfaces and surfaces that play an essential role in virtually all materials and devices. Physics, chemistry, materials science and life sciences blend to encourage new, cross-pollinating ideas, which will drive forward our understanding of the processes at the interface.
Advanced Materials Interfaces covers all topics in interface-related research:
Oil / water separation,
Applications of nanostructured materials,
2D materials and heterostructures,
Surfaces and interfaces in organic electronic devices,
Catalysis and membranes,
Self-assembly and nanopatterned surfaces,
Composite and coating materials,
Biointerfaces for technical and medical applications.
Advanced Materials Interfaces provides a forum for topics on surface and interface science with a wide choice of formats: Reviews, Full Papers, and Communications, as well as Progress Reports and Research News.