Abstract The present work involves preparation of N-substituted phthalimide derivatives. The Performing of this research includes three steps: The first step of this work was includes preparation of potassium phthalimide. The second step involves preparation of N-alkyl phthalimide by reacting of phthalimide salte with (benzylchloride, PVC, adipoyl chloride, and Aryloyl chloride) respectively. The third step includes polymerization of unsaturated prepared compounds by using (BPO) as initiator with heating, and reaction of another mole of phthalimide salt with N-Adipoyl mono chloride phthalimide. All the prepared compounds in this work were characterized by recording their melting points, softening point, infrared (FT-IR) spectra, and 1H-NMR for some of them.