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

被引：43

作者：

Tsou, Chi-Hui ^{[1
,2
,3
]}

Lee, Hsun-Tsing ^{[4
]}

Hung, Wei-Song ^{[3
]}

Wang, Chyung-Chyung ^{[5
]}

Shu, Chia-Chen ^{[6
]}

Suen, Maw-Cherng ^{[6
]}

De Guzman, Manuel ^{[3
]}

机构：

[1] Oriental Inst Technol, Dept Mat & Text, Pan Chiao 22064, Taiwan

[2] Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, Taipei 10607, Taiwan

[3] Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Taoyuan 32023, Taiwan

[4] Vanung Univ, Dept Chem & Mat Engn, Taoyuan 32091, Taiwan

[5] Chinese Culture Univ, Dept Text Engn, Taipei 11114, Taiwan

[6] Taoyuan Innovat Inst Technol, Grad Sch Mat Appl Technol, Taoyuan 32091, Taiwan

来源：

POLYMER | 2016年 / 85卷

关键词：

Polyurethane; Chain extender; Bis(3-pyridinemethanol) silver; Antibacterial; Positron annihilation lifetime spectroscopy; Free volume; POSITRON LIFETIME SPECTRA; FREE-VOLUME; TEMPERATURE-DEPENDENCE; ANNIHILATION; NANOPARTICLES; PREVENTION; CATHETERS; POLYMERS; EFFICACY; PROGRAM;

D O I：

10.1016/j.polymer.2016.01.042

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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.

引用

页码：96 / 105

页数：10

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