METHOD FOR MANUFACTURING POLYIMIDE

摘要

PROBLEM TO BE SOLVED: To provide a method in which manufacturing of a polyimide is possible by a simple process in an aqueous solvent. SOLUTION: The method for manufacturing a polyimide and/or its oligomer comprises on of a tetracarboxylic acid and/or its anhydride and a diamine between 60 deg.C and 100 deg.C in a reaction solvent comprising 80-100 wt.% of water.