| abstract |
Diamino compounds represented by general formula (1); a polyamic acid and a polyimide both obtained from any of the diaminoncompounds; and an alignment film made from the polyimide. The alignment film is obtained by irradiating a film of the polyimide withnpolarized ultraviolet. (In general formula (1), G 1 represents a C 2-20 trivalent organic group; G 2 independently represents a single bond, -nCOO-, -NHCO-, -O-, -S-, etc.; G 3 represents a single bond or C 1-20 alkylene; X and Y each independently represents hydrogen, fluorine,ncyano, C 1-12 alkyl, C 3-8 cycloalkyl, etc.; and m is an integer of 0 to 3). |