Enhanced thermal and mechanical properties and biostability of polyurethane containing silver nanoparticles

被引：91

作者：

Chou, CW

Hsu, SH ^{[1
]}

Chang, H

Tseng, SM

Lin, HR

机构：

[1] Natl Chung Hsing Univ, Dept Chem Engn, Taichung 402, Taiwan

[2] Chung Shan Med Univ Hosp, Dept Pathol, Taichung, Taiwan

[3] Taiwan Text Res Inst, Dept Prod Dev & Promot, Taipei, Taiwan

来源：

POLYMER DEGRADATION AND STABILITY | 2006年 / 91卷 / 05期

基金：

美国国家卫生研究院;

关键词：

biodegradation; biostability; foreign body reaction; microphase separation; thermostability;

D O I：

10.1016/j.polymdegradstab.2005.08.001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A polyether-type polyurethane (PU) containing silver (Ag) nanoparticles (4-7 nm, 1.51 X 10(-3) -1.13 X 10(-2) wt-%) was prepared by mixing the waterborne PU with the nanoparticle suspension, casting and drying at 60 degrees C. The Ag nanoparticles were found to be well dispersed in PU. A significant increase in the thermal stability and mechanical properties of the polymer was demonstrated in the nanocomposite PU films, which was believed a result of induced crystallization in the presence of Ag nanoparticles. The biostability was tested in a rat subcutaneous model. After 19 days of implantation, the PU containing Ag showed enhanced biostability and lowered foreign body reaction. The effect of Ag on the stability of the PU polymer was even more remarkable over a wider range of particle contents than that of the gold nanoparticles previously studied. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1017 / 1024

页数：8

共 40 条

[1] TEM investigation and electron diffraction study on dispersion of gold nanoparticles into a nylon 11 thin film during heat treatment [J].