POLYIMIDE PRECURSOR AND POLYIMIDE

摘要

The present invention relates to a polyimide precursor comprising a repeating unit represented by the following chemical formula (1):;;wherein A is a tetravalent group having at least one aliphatic six membered ring and no aromatic ring in the chemical structure, and B is a divalent group having at least one amide bond and an aromatic ring in the chemical structure; or A is an aliphatic tetravalent group and B is a divalent group having at least one chemical structure represented by the following chemical formula (2) in the chemical structure:;;and X1 and X2 are each independently hydrogen, a C1-6 alkyl group or a C3-9 alkylsilyl group.