Lifshitz points in blends of AB and BC diblock copolymers

Details Lifshitz points in blends of AB and BC diblock copolymers Lifshitz points in blends of AB and BC diblock copolymers

1998-07-02

arxiv.org/abs/cond-mat/9807035v1

Europhysics Letters 45 (1999) 83-89.

Physics

Condensed Matter

Soft Condensed Matter

5 pages ReVTEX, 3 figures (epsf), submitted to Europhysics Letters

Scientific paper

10.1209/epl/i1999-00135-4

We consider micro- and macro- phase separation in blends of AB and BC diblock copolymers. We show that, depending on architecture, a number of phase diagram topologies are possible. Microphase separation or macrophase separation can occur, and there are a variety of possible Lifshitz points. Because of the rich parameter space, Lifshitz points of multiple order are possible. We demonstrate Lifshitz points of first and second order, and argue that, in principle, up to 5th order Lifshitz points are possible.

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