Siloxane-terminated phenylpyrimidine liquid crystal hosts

L Li, CD Jones, J Magolan, RP Lemieux

Index: Li, Li; Jones, Christopher D.; Magolan, Jakob; Lemieux, Robert P. Journal of Materials Chemistry, 2007 , vol. 17, # 22 p. 2313 - 2318

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Citation Number: 53

Abstract

We report the synthesis and characterization of trisiloxane-terminated liquid crystals with 2- phenylpyrimidine cores that form partially bilayered SmA and SmC phases. Variable temperature measurements of smectic layer spacings by powder X-ray diffraction combined with measurements of optical tilt angles and observations of birefringence changes by polarized optical microscopy reveal that the trisiloxane end-group causes the SmA–SmC ...