Novel Diamine Compound, and Polyamic Acid and Polyimide Using the Same

摘要

Provided are a diamine compound, a polyamic acid and polyimide using the same. The diamine monomer compound is useful for preparing a transparent polyamic acid and polyimide having a high refractive index and a low birefringence.

主权项

1. A diamine monomer compound represented by Chemical Formula 1 below: in Chemical Formula 1, L1 is each independently O, S or Se; L2 is each independently (C6-C30)arylene or (C6-C30)heteroarylene, wherein heteroarylene includes at least one heteroatom selected from the group consisting of ═B—, ═N—, —O—, —S—, —P(═O)—, —Si— and P, and arylene and heteroarylene may be further substituted with at least one selected from the group consisting of (C1-C30)alkyl, halo(C1-C30)alkyl, halogen, (C3-C30)cycloalkyl, (C1-C30)alkoxy, (C6-C30)aryloxy, (C6-C30)aryl, (C6-C30)ar(C1-C30)alkyl, (C1-C30)alkyl(C6-C30)aryl, (C3-C30)heteroaryl, (C1-C30)alkyl-substituted (C3-C30)heteroaryl, (C6-C30)aryl-substituted (C3-C30)heteroaryl, mono- or di(C1-C30)alkylamino, mono- or di(C6-C30)arylamino, tri(C1-C30)alkylsilyl, di(C1-C30)alkyl(C6-C30)arylsilyl, tri(C6-C30)arylsilyl, nitro and hydroxy; and X1 is each independently halogen.