EAN: 9783319272023

A FIRST EXAMPLE OF A LYOTROPIC SMECTIC C ANALOG...

In this thesis Johanna Bruckner reports the discovery of the lyotropic counterpart of the
thermotropic SmC phase  which has become famous as the only spontaneously polarized 
ferroelectric fluid in nature. By means of polarizing optical microscopy  X-ray diffraction and
electro-optic experiments she firmly establishes aspects of the structure of the novel
lyotropic liquid crystalline phase and elucidates its fascinating properties  among them a
pronounced polar electro-optic effect  analogous to the ferroelectric switching of its
thermotropic counterpart. The helical ground state of the mesophase raises the fundamental
question of how chiral interactions are communicated across layers of more or less disordered
and achiral solvent molecules which are located between adjacent bi-layers of the chiral
amphiphile molecules. This thesis bridges an important gap between thermotropic and lyotropic
liquid crystals and pioneers a new field of liquid crystal research.

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