Hello Everyone,

My current work involves Polyimides. I am using various solvents in my Process. When I am dissolving Polyimide in NMP, after evaporation of solvent under vacuum at 100 C, I am getting a transparet film even though while casting, the film is opaque. But it is not the case with DMAc. The film is not transparent even though traces of evaporation of solvent is found.Is there any specific ways to get a transparent film from DMAc?

Thank you in Advance.

Hema