{"title":"A blue fluorescent waterborne polyurethane-based Zn(ii) complex with antibacterial activity","authors":"Xiang Luo, Yuqing Yang, Mingdi Yang, Kehua Zhang, Yuxi Xian, Ping Wang, Hongliang Xu, Xianhai Hu","doi":"10.1515/epoly-2023-0059","DOIUrl":null,"url":null,"abstract":"Polymer-based transition metal complexes have attracted much attention in many fields of application. In this article, a fluorescent polymer-based transition metal complex was prepared by bonding the transition metal complex with the polymer. First, Schiff base salicylaldehyde ethanolamine (HL) as a ligand was prepared by the reaction of salicylaldehyde with ethanolamine. Then, salicylaldehyde glycolamine Zn(<jats:sc>ii</jats:sc>) transition metal complexes (ZnL<jats:sub>2</jats:sub>) were synthesized with HL and Zn<jats:sup>2+</jats:sup> as the central ion. Finally, a blue fluorescent waterborne-based polyurethane Zn(<jats:sc>ii</jats:sc>) complex (ZnL<jats:sub>2</jats:sub>-WPU) with an antibacterial function was prepared with ZnL<jats:sub>2</jats:sub> as a chain extender by modified acetone method. The characteristics of fluorescence, heat stability, and bacteriostasis were characterized. Compared with ZnL<jats:sub>2</jats:sub>, the UV–vis absorption peak of ZnL<jats:sub>2</jats:sub>-WPU shows a blue shift of about 20 nm. ZnL<jats:sub>2</jats:sub>-WPU has a strong blue fluorescence emission at 450 nm, and the intensity increases significantly with ZnL<jats:sub>2</jats:sub> content. Surprisingly, the fluorescence lifetime of ZnL<jats:sub>2</jats:sub>-WPU is obviously increased, reaching more than one time that of ZnL<jats:sub>2</jats:sub>. Interestingly, the antibacterial efficiency of ZnL<jats:sub>2</jats:sub>-WPU against <jats:italic>E. coli</jats:italic> reached an incredible 99%. More importantly, ZnL<jats:sub>2</jats:sub>-WPU uses water as the dispersing medium, which is more environmentally friendly.","PeriodicalId":11806,"journal":{"name":"e-Polymers","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"e-Polymers","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1515/epoly-2023-0059","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Polymer-based transition metal complexes have attracted much attention in many fields of application. In this article, a fluorescent polymer-based transition metal complex was prepared by bonding the transition metal complex with the polymer. First, Schiff base salicylaldehyde ethanolamine (HL) as a ligand was prepared by the reaction of salicylaldehyde with ethanolamine. Then, salicylaldehyde glycolamine Zn(ii) transition metal complexes (ZnL2) were synthesized with HL and Zn2+ as the central ion. Finally, a blue fluorescent waterborne-based polyurethane Zn(ii) complex (ZnL2-WPU) with an antibacterial function was prepared with ZnL2 as a chain extender by modified acetone method. The characteristics of fluorescence, heat stability, and bacteriostasis were characterized. Compared with ZnL2, the UV–vis absorption peak of ZnL2-WPU shows a blue shift of about 20 nm. ZnL2-WPU has a strong blue fluorescence emission at 450 nm, and the intensity increases significantly with ZnL2 content. Surprisingly, the fluorescence lifetime of ZnL2-WPU is obviously increased, reaching more than one time that of ZnL2. Interestingly, the antibacterial efficiency of ZnL2-WPU against E. coli reached an incredible 99%. More importantly, ZnL2-WPU uses water as the dispersing medium, which is more environmentally friendly.
期刊介绍:
e-Polymers is a strictly peer-reviewed scientific journal. The aim of e-Polymers is to publish pure and applied polymer-science-related original research articles, reviews, and feature articles. It includes synthetic methodologies, characterization, and processing techniques for polymer materials. Reports on interdisciplinary polymer science and on applications of polymers in all areas are welcome.
The present Editors-in-Chief would like to thank the authors, the reviewers, the editorial staff, the advisory board, and the supporting organization that made e-Polymers a successful and sustainable scientific journal of the polymer community. The Editors of e-Polymers feel very much engaged to provide best publishing services at the highest possible level.