Phase separations in the mixtures of a mesomorphic polymer with a low molecular mass liquid crystal

C. Casagrande , M. Veyssié , H. Finkelmann

We have studied the phase diagram of a binary system, constituted with a side-chain mesomorphic polymer and a monomer liquid crystal, very similar to the mesogenic groups in the polymer. The main results is the existence of a gap of miscibility in the nematic state, leading to the coexistence, at a same temperature, of two nematic phases.

Mots clés: liquid crystal phase transformations; mixtures; nematic liquid crystals; polymer solutions; smectic liquid crystals; solubility; phase separation; phase diagram; binary system; side chain mesomorphic polymer; monomer liquid crystal; mesogenic groups; miscibility; pneumatic state; nematic phases

Domaines: Articles anciens

C. Casagrande, M. Veyssié, H. Finkelmann. Phase separations in the mixtures of a mesomorphic polymer with a low molecular mass liquid crystal. Journal de Physique Lettres, 1982, 43 (18), pp.671-675. ⟨10.1051/jphyslet:019820043018067100⟩. ⟨jpa-00232109⟩