Acenaphtho[1,2-b]quinoxaline sulfo-and carboxy-derivative, lyotropic liquid crystal system, optically anisotropic film and method thereof and laminated optical film

摘要

An acenaphtho[1,2-b]quinoxaline sulfo- and carboxy-derivative of the present invention is represented by a structure formula selected from the group consisting of structures I: wherein: k, l are individually integers in the range of 0 to 4; m, n are individually integers in the range of 0 to 6; M is a counter ion. The acenaphtho[1,2-b]quinoxaline sulfo- and carboxy-derivative can form a lyotropic liquid crystal system and is useful for an optically anisotropic film.