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| Laser Light Scattering Study on Aggregation of Cellulose Diacetate in Acetone |
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Ding-hai Xie1, Xu-hua Li1, Xi-ling Fang1, Chun-feng Ma*2
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1.Technology Center, China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510385, China;2.Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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| 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. |
| Key words: Cellulose diacetate, Laser light scattering, Multi-aggregation form structure |
| FundProject: |
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| 激光光散射研究二醋酸纤维素在丙酮中的聚集 |
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谢定海1, 李旭华1, 方细玲1, 马春风*2
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1.广东中烟工业有限责任公司技术中心，广州 510385;2.华南理工大学材料科学与工程学院，广州 510640
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| 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 |
| DOI：10.1063/1674-0068/27/03/256-258 |
| 分类号: |