| 激光光散射研究二醋酸纤维素在丙酮中的聚集 |
| |
| 引用本文： | 谢定海,李旭华,方细玲,马春风. 激光光散射研究二醋酸纤维素在丙酮中的聚集[J]. 化学物理学报, 2014, 27(3): 256-258 |
| |
| 作者姓名： | 谢定海 李旭华 方细玲 马春风 |
| |
| 作者单位： | 广东中烟工业有限责任公司技术中心，广州 510385;广东中烟工业有限责任公司技术中心，广州 510385;广东中烟工业有限责任公司技术中心，广州 510385;华南理工大学材料科学与工程学院，广州 510640 |
| |
| 摘 要： | 采用激光光散射研究了二醋酸纤维素的溶液性质. 发现在丙酮中二醋酸纤维素除了以单链形式存在外，还形成了胶束以及胶束簇集体. 随着浓度的增加，平均流体力学半径线性增加，而均方根回旋半径与平均流体力学半径的比值线性减小，表明由于二醋酸纤维素分子间的相互作用，胶束之间发生聚集，并形成胶束簇集体.
|
| 关 键 词： | 二醋酸纤维素，激光光散射，多聚集态结构 |
| 收稿时间： | 2013-12-20 |
Laser Light Scattering Study on Aggregation of Cellulose Diacetate in Acetone |
| |
| Ding-hai Xie,Xu-hua Li,Xi-ling Fang and Chun-feng Ma. Laser Light Scattering Study on Aggregation of Cellulose Diacetate in Acetone[J]. Chinese Journal of Chemical Physics, 2014, 27(3): 256-258 |
| |
| Authors: | Ding-hai Xie Xu-hua Li Xi-ling Fang Chun-feng Ma |
| |
| Affiliation: | Technology Center, China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510385, China;Technology Center, China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510385, China;Technology Center, China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510385, China;Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China |
| |
| Abstract: | We have investigated the properties of cellulose diacetate in solution by using laser light scat-tering. The cellulose diacetate molecules can form micelles and micellar clusters in acetone besides the individual chains. As the concentration increases, the average hydrodynamic radius h linearly increases, whereas the ratio of gyration radius to hydrodynamic ra-dius g>/h linearly decreases. It indicates that the micelles associate and form micellar clusters due to the intermolecular interactions. |
| |
| Keywords: | Cellulose diacetate Laser light scattering Multi-aggregation form structure |
|
| 点击此处可从《化学物理学报》浏览原始摘要信息 |
|
点击此处可从《化学物理学报》下载全文 |
|
