| 摘要 |
PROBLEM TO BE SOLVED: To provide a porous polyamideimide film excellent in heat resistance, having high porosity, and having fine pores formed and a manufacturing method therefor.SOLUTION: (1)There is provided a porous polyamideimide film obtained by a dry porous process, consisting of polyamideimide containing an oxyalkylene unit and having porosity of 20 vol.% to 95 vol.% and an average pore diameter of 10 nm to 1000 nm. (2)There is provided a manufacturing method of the porous polyamideimide film by drying at a temperature of 200°C or less after applying a solution containing polyamideimide containing the oxyalkylene unit, a good solvent and a poor solvent thereof onto a substrate.SELECTED DRAWING: None |
