STATISTICAL THERMODYNAMICS OF PREFERENTIAL SORPTION

被引：42
作者：
HORTA, A
机构：
[1] Departamento de QuÍmica FÍsica, Facultad de Ciencias, Universidad a Distancia (U.N.E.D.)
来源：
MACROMOLECULES | 1979年 / 12卷 / 04期
关键词：
D O I：
10.1021/ma60070a050
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The theory of polymer solutions developed by Flory and Patterson is used to calculate preferential and total sorption of macromolecules in mixed solvents. The coefficient of preferential adsorption is analyzed in terms of its dependence on parameters typical of the theory, such as molecular surface to volume ratios and free volume dissimilarity between polymer and solvents. Our theoretical results are compared with the ones from the simple Flory-Huggins theory. They are also compared with those obtained using an extended version of the Flory-Huggins theory which includes a phenomenological ternary interaction parameter. Based on this comparison, a partial interpretation is given for the molecular origin of such a ternary parameter. © 1979, American Chemical Society. All rights reserved.
引用
收藏
页码：785 / 789
页数：5
相关论文
共 28 条
123