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Abstract
A liquid crystalline polysiloxane and its monomer have been synthesized and characterized by FT-IR and 1HNMR spectra. Their bulk phase liquid crystallinity were studied. The mesomorphic transition behaviors and the mesophases were observed by Differential Scanning Calorimeter (DSC), Polarized Optical Microscopy (POM) and Wide Angle X-ray Diffraction (WAXD) measurements. The monomer showed SmB and SmA phases which are assured by the corresponding broken fan-shaped or mosaic textures and fan-shaped textures by POM observation and WAXD patterns. The polymer had only one mesophase, SmC phase, which showed characteristic of fan-shaped or Schlieren textures by POM and sharp peaks in low angle region and a diffused peak wide angle region from WAXD.