| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyimide precursor which is capable of being easily converted to a polyimide that is practically useful and has high transparency, high glass transition temperature, low linear thermal expansion coefficient, low dielectric constant, and enough rigidity, and also provide a method of producing the same. SOLUTION: The polyimide precursor has a structural unit for polimerization represented by a formula (1) [wherein, R is an aromatic residue] formed from an aromatic diamines and 1,4-diaminocyclohexane, and has reduced viscosity of >=2.0 dL/g. |
