主催: 日本液晶学会
会議名: 1999年 日本液晶学会討論会
開催地: 富山大学 五福キャンパス
開催日: 1999/09/29 - 1999/10/01
p. 92-93
Polyimide films irradiated with linearly polarized UV light can align liquid crystals(LC) perpendicularly to its polarization direction. In this paper, we have adopted near edge X-ray absorption fine structure(NEXAFS) spectroscopy with high surface sensitivity to study their LC alignment mechanisms. Observed dichroic ratio on the O K-edge π^* peak, originated from a C=O bond, clearly showed a good correlation with LC alignment capability.