A series of new poly(ether imide)s containing the naphthalimide moiety were prepared from bis(4-fluorobenzoyl)naphthalimides and several bisphenols by aromatic nucleophilic displacement polymerization. These polyimides had inherent viscosities in the range of 0.31-1.04 dL/g in chloroform and glass transition temperatures of 283.0-341.6 degrees C by differential scanning calorimetry. The onset temperature for 5% weight loss for all the polymers was over 448 degrees C, as assessed by thermogravimetry at a heating rate 10 degrees C/min in nitrogen. In addition, these novel polyimides exhibited good solubility in organic solvents including N-methyl-2-pyrrolidone, N,N-dimethylformamide, N,N-dimethylacetamide, 1,1,2,2-tetrachloroethane and chloroform.