| abstract |
The invention is to provide a photosensitive compound suitable for a photoalignment method, a photosensitive polymer prepared from the compound, a photoaligning agent by using the compound and a liquid crystal alignment film prepared from the photoaligning agent. A photosensitive compound represented by formula (1): n nin formula (1), Y 1 is a divalent group represented by formula (2-1) or (2-2); A 1 is 1,4-phenylene or 1,4-cyclohexylene; Z 1 is a single bond, —COO— or —OCO—; R 1 and R 2 are each independently hydrogen, fluorine or alkyl having 1 to 5 carbons; Q 1 is independently a single bond or alkylene having 1 to 12 carbons; and n is 0 or 1. In formulas (2-1) and (2-2), W 1 and W 2 are each independently hydrogen, alkyl having 1 to 3 carbons or alkoxy having 1 to 3 carbons. |