N-methylcarbazole -3, 6-diamine was synthesized from the carbazole by N-methylation, nitration and reduction of nitro groups. Aromatic polyamides containing carbazole unit were synthesized by the solution polycondensation of N-methylcarbazole-3, 6- diamine with terephthaloyl and isophthaloyl chloride at the low temperature. The monomer and polymers sysnthesized were identified by means of IR, NMR and MS. The optimum polymerization conditions were as follows; Reactants concentration: 0.12 mole/l for N-methylcarbazoleterephthalamide(NMCTA) and 0.32 mole/1 for N- methylcarbazole isophthalamide(NMCIA). Polymerization temperature : 25℃, Solvent: NMP+5% LiCl. NMCTA and NMCIA did not melt but decomposed above 420℃. The weight loss of NMCTA was 10% at 475℃ and 50% at 670℃. On the whole, NMCTA showed better thermal stability than NMCIA.

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