| abstract |
The present invention provides a composition for a photoalignment film comprising a compound represented by the general formula (1) and a compound having a hydrophilic group and a (meth) acryloyloxy group, and an optical alignment film comprising the composition for the photoalignment film. An optically anisotropic body using and a method for producing the same are provided.n n n n n n n n Wherein R 1 and R 2 are each independently a hydrogen atom, a halogen atom, a carboxyl group or an alkali metal salt thereof, a methyl halide group, a halogenated methoxy group, a cyano group, a nitro group, -OR 5 , or a hydrocarbon having 1 to 4 carbon atoms Oxyalkyl group, -CONR 6 R 7 , or methoxycarbonyl group, R 3 and R 4 each independently represent a carboxy group or an alkali metal salt thereof, sulfo group or alkali metal salt thereof, nitro group, amino group, carbamoyl group, alkoxycarbonyl group, Sulfamoyl group, or hydroxyl group)n n n Photo-alignment film composition, photo-alignment film, optically anisotropic body |