https://scholars.lib.ntu.edu.tw/handle/123456789/409343
標題: | Diffusivity of solvent in a polymer solution-expansive free volume effect | 作者: | Hsu J.-P. Lin S.-H. |
關鍵字: | Diffusivity of solvent;Expansive free volume;Fujita-Doolittle equation;Retardation effect;Thermal expansive coefficient | 公開日期: | 2005 | 卷: | 41 | 期: | 5 | 起(迄)頁: | 1036-1042 | 來源出版物: | European Polymer Journal | 摘要: | The concentration dependency of the diffusivity of a solvent in a polymer solution is derived on the basis of a free volume theory. Applying a molecular kinetics approach, the Fujita-Doolittle equation is modified. The result of numerical simulation reveals that the diffusivity of solvent in a polymer solution depends largely on both the polymer chain structure and its concentration. The applicability of the analytical expression derived is justified by fitting the experimental data for n-alkyl acetate-(poly-methyl acrylate) polymer solutions in the literature. ? 2004 Elsevier Ltd. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409343 | ISSN: | 00143057 | DOI: | 10.1016/j.eurpolymj.2004.11.016 |
顯示於: | 化學工程學系 |
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