On the Behavior of the Lifshitz Line in Ternary Homopolymer/Diblock-Copolymer Blends

We present results of the study of the non-monotonous behavior of the Lifshitz line as a function of temperature in ternary homopolymer/diblock-copolymer mixtures. The non-monotonous behavior of the Lifshitz line is due to the wave vector dependence of fluctuational corrections, which we treat in the framework of the renormalization group method. Our results are in agreement with the experimental findings of Schwahn et al.[1,2]