Phase behavior of flowerlike micelles in a SCF cell model

被引:24
作者
Sprakel, J. [1 ,2 ]
Besseling, N. A. M. [3 ]
Cohen, M. A. [1 ]
Leermakers, F. A. M. [1 ]
机构
[1] Wageningen Univ, Lab Phys Chem & Colloid Sci, NL-6703 HB Wageningen, Netherlands
[2] DPI, NL-5600 AX Eindhoven, Netherlands
[3] Delft Univ Technol, Dept Chem Engn, Sect Nanostruct Mat, NL-2628 BL Delft, Netherlands
关键词
D O I
10.1140/epje/i2007-10277-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We study the interactions between flowerlike micelles, self-assembled from telechelic associative polymers, using a molecular self-consistent field (SCF) theory and discuss the corresponding phase behavior. In these calculations we do not impose properties such as aggregation number, micellar structure and number of bridging chains. Adopting a SCF cell model, we calculate the free energy of interaction between a central micelle surrounded by others. Based on these results, we predict the binodal for coexistence of dilute and dense liquid phases, as a function of the length of the hydrophobic and hydrophilic blocks. In the same cell model we compute the number of bridges between micelles, allowing us to predict the network transition. Several quantitative trends obtained from the numerical results can be rationalized in terms of transparent scaling arguments.
引用
收藏
页码:163 / 173
页数:11
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