Antiferroelectric liquid crystals based on the salicylaldimine in connection with linear alkynyl chain

Abstract

A novel homologous series of chiral salicylaldimine-based liquid crystals in connection with linear alkynyl chain, C _m YCBOC₈* ( m  = 6–10), have been synthesised and their mesomorphic phases have been studied. All of the materials possessed antiferroelectric smectic C (SmC_A*) phase, which was confirmed by the observations of microscopic texture, switching current behaviour and dielectric permittivity.

Keywords:

• antiferroelectric
• salicylaldimine
• linear alkynyl chain

Acknowledgements

This study was financially supported by the National Science Council of Taiwan (R.O.C.) through NSC101-2113-M-036-001.