PROCESSING METHOD FOR ORIENTED AROMATIC POLYIMIDE FILM

摘要

The homopolymer, copolymer, blend of homopolymer/copolymer of aromatic polyamide acid solution having the intrinsic viscosity over 0.5 were casted, dried until solvent quantity below 30 wt.% to give gel film or polyimide film which were extended to make orientation with controlling the orientation angle of molecular chain and the degree of molecular orientation with the microwave molecular orientation analyzer.