Details

Autor(en) / Beteiligte

• Luo, Xiang
• Yang, Yuqing
• Yang, Mingdi
• Zhang, Kehua
• Xian, Yuxi
• Wang, Ping
• Xu, Hongliang
• Hu, Xianhai

Titel

A blue fluorescent waterborne polyurethane-based Zn(ii) complex with antibacterial activity

Ist Teil von

• e-Polymers, 2024-04, Vol.24 (1), p.3551-74

Ort / Verlag

Berlin: De Gruyter

Erscheinungsjahr

2024

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• 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( ) transition metal complexes (ZnL ) were synthesized with HL and Zn as the central ion. Finally, a blue fluorescent waterborne-based polyurethane Zn( ) complex (ZnL -WPU) with an antibacterial function was prepared with ZnL as a chain extender by modified acetone method. The characteristics of fluorescence, heat stability, and bacteriostasis were characterized. Compared with ZnL , the UV–vis absorption peak of ZnL -WPU shows a blue shift of about 20 nm. ZnL -WPU has a strong blue fluorescence emission at 450 nm, and the intensity increases significantly with ZnL content. Surprisingly, the fluorescence lifetime of ZnL -WPU is obviously increased, reaching more than one time that of ZnL . Interestingly, the antibacterial efficiency of ZnL -WPU against reached an incredible 99%. More importantly, ZnL -WPU uses water as the dispersing medium, which is more environmentally friendly.