手性和外消旋体系中诱导反铁电相的热力学研究

Liquid crystals (Print) Pub Date : 2004-09-01 DOI:10.1117/12.581069

M. Filipowicz, P. Kula, K. Czupryński

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摘要

双组分和多组分混合物由两组共斜手性酯组成:第一类具有部分氟化末端链，第二类具有氢化末端链。在一些体系中观察到反斜晶CA*相的诱导。用DSC法测定了诱导近晶CA相体系的相变焓随组分和比热的变化。

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Thermodynamic studies of induced antiferroelectric phases in chiral and racemic systems

Bi- and multicomponent mixtures consisted of two groups of synclinic chiral esters: first one with a partially fluorinated terminal chain and the second one with hydrogenated terminal chain have been used for investigations. For some systems the induction of the anticlinic smectic CA* phase was observed. Enthalpies of the phase transitions for the systems with induced smectic CA phase upon compositions and specific heat were measured by DSC method.

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Liquid crystals (Print)

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