Dielectric relaxation in a new cyclic liquid‐crystalline oligosiloxane

Polysiloxanes with mesogenic side chains are suitable model compounds dor the study of molecular dynamics. The first dielectric relaxation data are presented here for a cyclic oligosiloxane having a degree of oligomerization of 5, a cyanophenylbenzoate group as the terminal dipole, and a spacer length of 3. The phase sequence was determined by means of X‐ray diffraction, differential scanning calorimetry, and polarizing microscopy. Reasons for the strong dependence of physical properties on the degree of oligomerization are discussed.