| abstract |
PROBLEM TO BE SOLVED: To provide a highly polar polyimide resin having excellent pigment dispersibility such as carbon and magnetic powder and excellent adhesion to other materials. The present invention relates to a polyimide resin in which a compound represented by the following general formula (I) is copolymerized. [Chemical 1] (However, R 1 and R 2 are substituents having any of an amino group, a hydroxyl group, and a carboxyl group, and may be the same or different. R 3 is hydrogen or an alkyl group.) Further, the present invention relates to a fuel cell separator characterized in that carbon is mixed with the polyimide resin described above. [Selection figure] None |