DIAMINOBENZENE DERIVATIVES, POLYIMIDE PRECURSORS AND POLYIMIDES PREPARED BY USING THA SAME, AND LIQUID CRYSTAL ALIGNING AGENTS

摘要

A diaminobenzene derivative represented by the formula (1): wherein X<1> is a bivalent organic group selected from -OCH2-, -CH2O-, -COOCH2- and -CH2OOC-, X<2> is -O-, and X<3> is an alkyl or fluoroalkyl group having from 1 to 22 carbon atoms, or a cyclic substituent selected from aromatic rings, aliphatic rings, heterocyclic rings and their substituted groups; a polyimide precursor and a polyimide synthesized by using the diaminobenzene derivative as a part of the material; and a treating agent for liquid crystal alignment containing the polyimide precursor and/or the polyimide.