Siqi Wang, Xiao Dai, Dong Fu, Fan Wang, Lili Zhang, Jun Shen
{"title":"具有高柔韧性和湿度响应的手性向列性纤维素纳米晶体和葡萄糖酸虹彩薄膜","authors":"Siqi Wang, Xiao Dai, Dong Fu, Fan Wang, Lili Zhang, Jun Shen","doi":"10.1007/s10570-024-05998-3","DOIUrl":null,"url":null,"abstract":"<div><p>Two novel chiral nematic cellulose nanocrystal (CNC) composite films composed of CNCs, gluconic acid (GA), polyvinyl pyrrolidone or polyacrylamide (CNC-GA-PVP and CNC-GA-PAM) were fabricated mainly by evaporation-induced self-assembly process. The visible iridescent color and chiral nematic structure of the obtained CNC-based films could be readily regulated by altering the content of GA in a wide color range. Both CNC composite films possessed good tensile strength. Worthy to be mentioned, the CNC-GA-PAM films exhibited rather high flexibility (elongation reached 222.53%) and could be curled into any shape, indicating the effective contribution of the polymer cross-linked networks from the non-ionic PAM. The reversible humidity responses were also observed for both CNC films with good sensitivity, probably due to the high hygroscopicity of GA. In addition, the CNC-GA-PAM films revealed exceptional water resistance without losing the regular chiral structure and structural color of CNCs. The influences of the content of tougheners and adding way of the polymers on the properties of CNC films were further investigated. This work presents a novel strategy for construction of multifunctional CNC-based nanomaterials for various applications.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":null,"pages":null},"PeriodicalIF":4.9000,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Chiral nematic cellulose nanocrystals and gluconic acid iridescent films with high flexibility and humidity response\",\"authors\":\"Siqi Wang, Xiao Dai, Dong Fu, Fan Wang, Lili Zhang, Jun Shen\",\"doi\":\"10.1007/s10570-024-05998-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Two novel chiral nematic cellulose nanocrystal (CNC) composite films composed of CNCs, gluconic acid (GA), polyvinyl pyrrolidone or polyacrylamide (CNC-GA-PVP and CNC-GA-PAM) were fabricated mainly by evaporation-induced self-assembly process. The visible iridescent color and chiral nematic structure of the obtained CNC-based films could be readily regulated by altering the content of GA in a wide color range. Both CNC composite films possessed good tensile strength. Worthy to be mentioned, the CNC-GA-PAM films exhibited rather high flexibility (elongation reached 222.53%) and could be curled into any shape, indicating the effective contribution of the polymer cross-linked networks from the non-ionic PAM. The reversible humidity responses were also observed for both CNC films with good sensitivity, probably due to the high hygroscopicity of GA. In addition, the CNC-GA-PAM films revealed exceptional water resistance without losing the regular chiral structure and structural color of CNCs. The influences of the content of tougheners and adding way of the polymers on the properties of CNC films were further investigated. This work presents a novel strategy for construction of multifunctional CNC-based nanomaterials for various applications.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":511,\"journal\":{\"name\":\"Cellulose\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2024-06-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cellulose\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10570-024-05998-3\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cellulose","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10570-024-05998-3","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
Chiral nematic cellulose nanocrystals and gluconic acid iridescent films with high flexibility and humidity response
Two novel chiral nematic cellulose nanocrystal (CNC) composite films composed of CNCs, gluconic acid (GA), polyvinyl pyrrolidone or polyacrylamide (CNC-GA-PVP and CNC-GA-PAM) were fabricated mainly by evaporation-induced self-assembly process. The visible iridescent color and chiral nematic structure of the obtained CNC-based films could be readily regulated by altering the content of GA in a wide color range. Both CNC composite films possessed good tensile strength. Worthy to be mentioned, the CNC-GA-PAM films exhibited rather high flexibility (elongation reached 222.53%) and could be curled into any shape, indicating the effective contribution of the polymer cross-linked networks from the non-ionic PAM. The reversible humidity responses were also observed for both CNC films with good sensitivity, probably due to the high hygroscopicity of GA. In addition, the CNC-GA-PAM films revealed exceptional water resistance without losing the regular chiral structure and structural color of CNCs. The influences of the content of tougheners and adding way of the polymers on the properties of CNC films were further investigated. This work presents a novel strategy for construction of multifunctional CNC-based nanomaterials for various applications.
期刊介绍：
Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
