TEMPO-Mediated Oxidation of Unbleached Bagasse Pulp

被引：2
|
作者：
Liu, MengRu [2 ]
Li, HaiLong [1 ]
机构：
[1] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou, Guangdong, Peoples R China
[2] South China Univ Technol, Ind Technol Res Inst, Guangzhou, Guangdong, Peoples R China
来源：
FUNCTIONAL MATERIALS AND NANOTECHNOLOGY | 2012年 / 496卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
TEMPO; Oxidation; Unbleached Bagasse Pulp; Properties; PRIMARY ALCOHOL GROUPS; NATIVE CELLULOSE; POLYSACCHARIDES;
D O I：
10.4028/www.scientific.net/AMR.496.71
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the paper, unbleached bagasse pulp was oxidized with sodium hypochlorite with catalytic amounts of 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) and sodium bromide in water. After the TEMPO-mediated oxidation, the oxidized pulp were collected and characterized in terms of morphology, water retention values, crystallinity and deposition properties. The significant changes in morphology were observed before and after the oxidation. Crystallinity of cellulose I was nearly unchanged during the oxidation. Water retention value of pulp can be increased from 68.9% to 70.7% by the TEMPO-mediated oxidation. The TEMPO- oxidized pulp was homogeneously dispersed in water when the pulp consistency is 0.1%.
引用
收藏
页码：71 / +
页数：2
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