POLYAMIC ACID OR POLYIMIDE AND LIQUID CRYSTALLINE ORIENTATING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a polyamide acid or a polyimide to which a high pre-tilt angle and which has a high transparency. SOLUTION: This polyamic acid and a polyimide is a product obtained by reacting at least one compound selected from diamines and at least one compound selected from two-acid anhydrides in an organic solvent. As an essential component of the diamine, an aliphatic ring-structured diamine having a hydrocarbon side chain is used for the reaction.