Open AccessSTUDY OF SURFACE ANCHORING OF LIQUID CRYSTALS ON POLYIMIDE LB FILMS
Author(s) -
Rong Sun,
Guo Jian-xin,
Zongkai Wang,
Kai Ma,
Xin Huang
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.2041
Subject(s) - polyimide , rubbing , liquid crystal , materials science , anchoring , polymer , molecule , intermolecular force , chemical engineering , surface energy , layer (electronics) , crystallography , composite material , organic chemistry , optoelectronics , chemistry , structural engineering , engineering
The surface alignment of liquid crystals is very important in preparing liquid crystal cells. The orientational effect of liquid crystal and polymide molecules on Langmuir-Blodgett(LB) films has been studied. The degree of orientation of the polyimide chain in LB films is weaker than that in strong rubbing films. The orientational effect of liquid crystals on the polyimide LB films is worse than that on the strong rubbing films. The surface azimuthal anchoring energy of liquid crystals on the polyimide LB films was measured. The intermolecular interaction between liquid crystal and polymer molecules is considered to be very important for the alignment of liquid crystals on the polymer surface.