| 低取代度季铵型半纤维素合成及其结构的研究 |
| |
| 引用本文： | 任俊莉,孙润仓,刘传富,何北海,林鹿. 低取代度季铵型半纤维素合成及其结构的研究[J]. 林产化学与工业, 2007, 27(3): 72-76 |
| |
| 作者姓名： | 任俊莉 孙润仓 刘传富 何北海 林鹿 |
| |
| 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;华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640;华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640;华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640;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,通过醚化反应制备出低取代度季铵型半纤维素.主要讨论了醚化剂3-氯-2-羟丙基三甲基氯化铵(CHMAC)、催化剂NaOH用量对改性产品取代度的影响.当CHMAC与半纤维素的物质的量之比值为1.0、NaOH与CHMAC物质的量之比值为1.2时,得到取代度为0.02的季铵型半纤维素.通过红外、核磁共振光谱表征了改性前后半纤维素的结构.
|
| 关 键 词： | 半纤维素 取代度 结构 |
| 文章编号： | 0253-2417（2007）03-0072-05 |
| 修稿时间： | 2006-04-10 |
Study on Synthesis and Structure of Quaternary Ammonium-type Hemicellulose with Low Degree of Substitution |
| |
| REN Jun-li,SUN Run-cang,LIU Chuan-fu,HE Bei-hai,LIN Lu. Study on Synthesis and Structure of Quaternary Ammonium-type Hemicellulose with Low Degree of Substitution[J]. Chemistry & Industry of Forest Products, 2007, 27(3): 72-76 |
| |
| Authors: | REN Jun-li SUN Run-cang LIU Chuan-fu HE Bei-hai LIN Lu |
| |
| Affiliation: | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China |
| |
| Abstract: | Quaternary ammonium type hemicellulose with low degree of substitution was synthesized using hemicellulose isolated from sugarcane bagasse as raw material by etherification. The effects of etherifying agent 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CHMAC) and catalyst NaOH on the degree of substitution of modified product were discussed. When the molar ratio of etherifying agent to hemicellulose is 1.0, and the molar ratio of catalyst to etherifying agent is 1.2, the product of DS (0.02) was obtained. Structures of the native hemicellulose and modified hemicellulose were examined by FT-IR and 13C NMR spectroscopies. |
| |
| Keywords: | hemicelluloses degree of substitution structure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《林产化学与工业》浏览原始摘要信息 |
|
