| 新型半纤维素衍生物的制备及其结构研究 |
| |
| 引用本文： | 任俊莉,孙润仓,刘传富,何北海. 新型半纤维素衍生物的制备及其结构研究[J]. 中国造纸学报, 2006, 21(4): 62-65 |
| |
| 作者姓名： | 任俊莉 孙润仓 刘传富 何北海 |
| |
| 作者单位： | 华南理工大学制浆造纸工程国家重点实验室,广东,广州,510640 |
| |
| 基金项目： | 国家自然科学基金;广东省自然科学基金;华南理工大学校科研和教改项目 |
| |
| 摘 要： | 以蔗渣提取的半纤维素为原料。在异相中通过季铵化反应制备了新型半纤维素衍生物。讨论了反应温度、时间、用碱量及阳离子试剂用量对半纤维素衍生物取代度的影响。红外光谱结果表明，改性半纤维素大分子链上具有阳离子基团，证实了半纤维素确实发生了季铵化反应。GPC检测结果表明。改性后半纤维索分子质量比未改性的半纤维索分子质量低，证明半纤维素在化学反应中发生了降解。
|
| 关 键 词： | 半纤维素 改性 取代度 结构 |
| 文章编号： | 1000-6842（2006）04-0062-04 |
| 修稿时间： | 2006-07-18 |
Preparation and Characterization of Novel Hemicellulosic Derivatives |
| |
| REN Jun-li,SUN Run-cang,LIU Chuan-fu,HE Bei-hai. Preparation and Characterization of Novel Hemicellulosic Derivatives[J]. Transactions of China Pulp and Paper, 2006, 21(4): 62-65 |
| |
| Authors: | REN Jun-li SUN Run-cang LIU Chuan-fu HE Bei-hai |
| |
| Affiliation: | State Key lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 |
| |
| Abstract: | Novel Hemicellulosic derivatives were prepared using sugarcane bagasse hemieeUuloses materials in heterogeneous system by quaterization. The effect of the conditions of reaction, including time, temperature, and the dosages of catalyst and cationic agent, on the degree of substitution was discussed in detail. The results of FT- IR showed that the cationic groups tie on the chain of hemicelluloses, which confirms the hemicellulos is modified. The molecular weight of the modified hemiceUuloses is lower than that of the native hemiceUuloses, which is illustrated that the hemiceUulose is degraded in the reaction. |
| |
| Keywords: | hemiceUuloses modification degree of substitution structure |
| 本文献已被 维普 万方数据 等数据库收录！ |
