Process for producing porous polymide

摘要

Porous polyimide is prepared by preparing a polymer composition having a microdomain structure that comprises a discontinuous phase of dispersible compound dispersed in a continuous phase of polyimide precursor. The dispersible compound is removed from the polymer composition, and the polyimide precursor is converted into polyimide. Production of porous polyimide includes preparing a polymer composition having a microdomain structure that includes a discontinuous phase of dispersible compound (B) dispersed in a continuous phase of polyimide precursor (A), removing dispersible compound from the polymer composition, and converting polyimide precursor into polyimide. An interaction parameter X-AB between the polyimide precursor and dispersible compound is greater than 3.