Synthesis and characterization of side-chain liquid crystalline polysiloxanes containing α-terpineol in mesogenic group

Abstract

The synthesis and characterization of polysiloxanes containing α-terpineol in mesogenic group is described. Their phase behaviour was studied by differential scanning calorimetry and optical polarizing microscopy, and compared with the phase behaviour of the corresponding cyclohexane-based polysiloxane. The monomer containing an undecenyl(-11-oxy) flexible spacer and α-terpineol shows a nematic and smectic-A mesophase. The synthesized polymers display a smectic mesophase without undergoing side-chain crystallization.

Keywords:

• LCP
• MESOPHASES
• POLYSILOXANES