Organosiloxanes with molecular microrelief for liquid crystal alignment

  • Mazaeva, Vera G. (State Scientific Centre for Organoelement Chemistry and Technology) ;
  • Belyaev, Victor V. (Moscow Region State University) ;
  • Timofeyev, Sergey N. (R&D Institute for Applied Physical Problems) ;
  • Min'ko, Anatoliy A. (R&D Institute for Applied Physical Problems)
  • Published : 2009.10.12

Abstract

A few organosilicon compounds (OC) - both cyclic and linear siloxanes with different structure of the substituents - have been synthesized. Properties of the LC anchoring on OC films have been measured. The OC investigated provide the homogeneous planar alignment with LC tilt angle in the range from $0.7^{\circ}$ to $1.9^{\circ}$. An increase of the microrelief depth results in a small increase of the tilt angle. The azimuthal anchoring is better for the films of the OC without molecular microrelief or the OC comprising polar groups.

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