Synthesis and properties of antibacterial polyurethane with novel Bis(3-pyridinemethanol) silver chain extender

CCUR > College of Natural Science and Engineering > College of Engineering > Department of Textile Engineering > journal articles > Item 987654321/32157

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/32157

Title:	Synthesis and properties of antibacterial polyurethane with novel Bis(3-pyridinemethanol) silver chain extender
Authors:	Tsou, Chi-Hui Lee, Hsun-Tsing Hung, Wei-Song Wang, Chyung-Chyung Shu, Chia-Chen Suen, Maw-Cherng De Guzman, Manuel
Contributors:	紡工系
Keywords:	Polyurethane Chain extender Bis(3-pyridinemethanol) silver Antibacterial Positron annihilation lifetime spectroscopy Free volume
Date:	2016-02-24
Issue Date:	2016-03-11 15:25:32 (UTC+8)
Abstract:	To synthesize antibacterial polyurethane (PU) films, a novel chain extender, bis(3-pyridinemethanol) silver (BPDS), and a PU prepolymer were also synthesized through coordination and covalent reactions. The effects of incorporating different amounts of BPDS were investigated by characterizing the BPDS/PU films using various instruments: FTIR, TGA, DSC, DMA, XRD, EDX, universal testing machine, contact angle goniometer, and positron annihilation spectroscopy (PALS). With a higher BPDS content, the glass transition temperature, final degradation temperature, and Young's modulus were all enhanced; however, the tensile strength and elongation at break were both reduced. PALS analysis revealed that the more rigid and randomly packed structure of the BPDS/PU films at a higher BPDS content was characterized by a broader free volume size distribution that consisted largely of much smaller free volume holes. Quantitative tests with Staphylococcus aureus and Escherichia coli indicated excellent antibacterial properties, suggesting that the PU films could be used repeatedly. (C) 2016 Elsevier Ltd. All rights reserved.
Relation:	POLYMER 卷: 85 頁碼: 96-105
Appears in Collections:	[Department of Textile Engineering ] journal articles

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	357	View/Open

View Licence

Loading...