| abstract |
The present invention provides a liquid crystal alignment agent for obtaining a liquid crystal alignment film excellent in adhesion to a sealant and liquid crystal alignment.nThe present invention is a liquid crystal alignment agent containing a polyimine precursor selected from the structural unit represented by the formula (1) and the structural unit represented by the formula (3), and the polyimine precursor. A polymer of at least one of the group of ruthenium imidized polymers. However, X1 and X2 are tetravalent organic groups, Y1 is a divalent organic group having a thermally detachable group, Y2 is a divalent organic group, and R1 and R2 are a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, Z1. Z2 is a hydrogen atom, or an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or an alkynyl group having 2 to 10 carbon atoms which may have a substituent.n□ □ |