Intermediates in nucleophilic aromatic substitution. 17. Kinetics of spiro Meisenheimer complexes. Effect of ring size
作者:Claude F. Bernasconi、Joseph R. Gandler
DOI:10.1021/jo00441a014
日期:1977.10
LIQUID CRYSTAL ALIGNMENT AGENT AND USES THEREOF
申请人:CHI MEI CORPORATION
公开号:US20150274969A1
公开(公告)日:2015-10-01
The invention relates to a liquid crystal alignment agent comprising a polymer composition (A) and a solvent (B); wherein the polymer composition (A) is obtained by reacting a mixture comprising a tetracarboxylic acid dianhydride component (a) and a diamine component (b). The liquid crystal alignment agent has the advantage of low moisture absorption. The invention also provides a liquid crystal alignment film made by the liquid crystal alignment agent as mentioned above and a liquid crystal display element comprising the liquid crystal alignment film.