Homopolymer lattice model Self-consistent field

It was found that the effective width of the interface between the PS and PMMA segments was 75 A, i.e., it was 50% broader than that found between the PS and PMMA homopolymers in the absence of the diblock copolymer (50 5 A [261]) and between the PS and PMMA lamellar microdomains of the pure PS-ft-PMMA in the bulk (50 4 A) [261,262]. The area occupied by the copolymer at the interface between the homopolymers is 30% larger than that of the copolymers in the bulk lamellar microstructure [39]. In that study, the amount of diblock copolymer at the interface was (approximately) equivalent ( 200 A) to half of the long period of the neat ordered copolymer. The same PS/PS-h-PMMA/PMMA system was subsequently investigated by a lattice-based self-consistent field model that was extended... 

A diverse range of theoretical approaches have been employed to analyze the structure of block copolymer micelles, and for micelle formation (1). The first models were based on scaling relationships for polymer brushes and give predictions for the dependence of micelle dimensions on the size of the blocks, as well as the association nnmber of the micelle. A l3rnsh theory by Leibler and coworkers enables the calcnlation of the size and nnmber of chains in a micelle and its free energy of formation (124). The fraction of copolymer chains aggregating into micelles can also be obtained. Self-consistent field theory was first applied to predict the critical micelle concentration of a diblock in a homopolymer matrix, and then applied to block copolymers in solution (1). The lattice implementation of SCF theory has been applied to analyze the dimensions of micelles for specific (Pluronic) block copolymers (125). 

---