POLYMER, LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNING FILM, LIQUID CRYSTAL DISPLAY ELEMENT, AND DIAMINE

摘要

The present invention is at least one type of polymer selected from a polyimide precursor containing a structure expressed by the following formula [I] as a side chain and polyimide and polyamide that are obtained through the imidization of the polyimide precursor (In the formula, Y1 is an unsubstituted or substituted and carbocyclic or heterocyclic divalent aromatic group selected from a monocyclic ring with a number of atoms of 5 or 6, two adjacent monocyclic rings with a number of atoms of 5 or 6, a bicyclic ring system with a number of atoms of between 8 and 10, and a tricyclic ring system with a number of atoms of 13 or 14, Y2 is a divalent linking group selected from a group consisting of single bond or ether bond, ester bond, amide bond, and urethane bond, and Y3 is a monovalent organic group containing a straight-chain alkyl group with a carbon number of between 3 and 20 in which the hydrogen atom may be substituted with a fluorine atom, or an alicyclic skeleton with a carbon number of between 4 and 40).