Rod-coil copolymers form smectic phases in melts and solutions. A mean-field analysis of nonoverlapping lamellae formed by rod-coil copolymers in a selective solvent of low molecular weight is presented. The system exhibits a first-order, smetic A -smectic C phase transition. The transition is due to competition between the deformation free energy of the flexible blocks and the surface free energy of the rodlike segments.
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A. Halperin (1989) studied this question.
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