PBa10 高屈折率異方性を示すフェニルアセチレン液晶性化合物 : 骨格へのメチル置換基導入による物性への影響

抄録

We studied 3-ring phenylacetylene compounds for improving conventional problems of high Δn liquid crystals as high melting points and insufficient photostability. 3-ring phenylacetylene homologues which had methyl groups with the core part were synthesized and evaluated. Melting points, clearing points and Δn were affected by the positions of the methyl group substitutions. Middle ring was more favorable substituent position for lowering the temperature range of liquid crystal phases with keeping Δn.