Synthesis and characterization of novel ferroelectric liquid crystal polysiloxane containing undecanoyloxy spacer (I)

✍ Scribed by Qizhen Zhang; Qingbin Xue; Kongzhang Yang

• Book ID: 102660025
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 690 KB
• Volume: 7
• Category: Article
• ISSN: 1042-7147
• DOI: 10.1002/(sici)1099-1581(199602)7:2<129::aid-pat459>3.0.co;2-1

✦ Synopsis

A novel side-chain liquid crystal polysiloxane and its corresponding monomer were synthesized by the standard method. We ensured their structures were as expected and their purities were high by ' H nuclear magnetic resonance and infrared measurements. They were studied by differential scanning calorimetry (DSC) for their thermal analysis and polarizing optical microscopy (POM) with hot stage for their textures and transition temperatures. The results s h e d good liquid cystal properties and low transition temperatures of the mesophase. X-ray diffractions were done to research their layer structure and SmA and SmC* phases were assured, in good agreement with the results of the POM and DSC measurements. The optical rotation degree was also measured.