POLYIMIDE RESIN AND POLYIMIDE FILM

摘要

A polyimide resin including a structural unit shown by formula (1-1), and a polyimide film including a structural unit shown by formula (1-2) and having a thickness of 10-50 μm. (In formula (1-1), R1 and R2 are each independently a group of any of formulas (i)-(iv); in formula (1-2), R1 and R2 are each independently a group of formula (i) or formula (ii); * in these formulas bonds to carbons marked with an * in formula (1-1) and formula (1-2), and ** bonds to carbons marked with an ** in formula (1-1) and formula (1-2).) Provided are a polyimide resin that makes it possible to form a polyimide film having excellent transparency and a low coefficient of linear thermal expansion, and a polyimide film having a lower coefficient of linear thermal expansion.