一组结构不对称耐高溫液晶的合成

Synthesis of High Temperature Liquid Crystals with Unsymmetric Structure

摘要: 从4'-烷氧基-1-偶氮苯甲醛出发,与取代的芳胺反应,得到一组以对偶氮亚苄亚氨基(-N=N-???19900310???-CH=N-)为中心基团的不对称液晶。这类液晶具有较大的长宽比;沿长轴具有一定的偶极;并具有较高而且宽的中介相温区。
- 液晶 /
- 中介相 /
- 合成
Abstract: After the reaction between 4'-alkyloxy-4-azo benzenal-dehydes and 4-substituted anilines, a series of unsymmetrically structured liquid crystals with para azobenzenaldimine residual(-N=N-???19900310???-CH=N-) as the central group is obtained. Theseries of liquid crystals has a rather higher and broader temperature region of mesophase because of their higher length-width ratio and the definite polarity.
- liquid crystal /
- mesophase /
- synthesis