期刊
SURFACE AND INTERFACE ANALYSIS
卷 45, 期 11-12, 页码 1673-1679出版社
WILEY
DOI: 10.1002/sia.5306
关键词
bacterial cellulose; hydrogen bond; surface character
资金
- Major State Basic Research Development Program (973 Project) [2012CB933600]
In this study, we focused on the surface character of bacterial cellulose (BC) before and after oxidation mediated by 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO).Solid-state C-13 NMR, XPS, SEM, contact angle and surface free energy analyses were performed to investigate the effects of various parameters (reaction time and oxidant and catalyst concentrations) on the surface composition, morphology and polarity of the BC. The results provided by the combined use of these techniques showed that hydrogen bonds were disrupted on the BC surface after carboxylation occurred; therefore, the surface of oxidized BC was rougher than that of the original BC, and the surface free energy, especially the polar components, increased after oxidation. Copyright (c) 2013 John Wiley & Sons, Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据