| abstract |
PROBLEM TO BE SOLVED: To provide a polyimide having excellent properties such as transparency, bending resistance, high heat resistance, and a low coefficient of linear thermal expansion, and a precursor thereof. SOLUTION: A polyimide precursor containing at least one repeating unit whose structure derived from a tetracarboxylic acid component is a structure represented by either chemical formula (A-3) or (A-4), and a polyimide. [Selection diagram] None |