Synthesis and characterization of new soluble polyamides from Acenaphtohydrazinomercaptotriazole diamine

Abstract

SbstractA diamine Acenaphtohydrazinomercaptotriazole (AHTD) was synthesized in one step from acenaphthoqinone and 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole. The diamin was characterized by FTIR, 1 HNMR, 13 CNMR and melting point. Diamin was used to prepare novel polyamides. The low temperature solution polycondensation of diamin with tow aromatic and tow aliphatic diacid chlorides afforded diamin-containing polyamides with inherent viscosities of 0.38-0.47 dl/g in DMF at 25 °C. The polyamides were generally soluble in a wide range of solvents such as dimethylformamide(DMF), N-Methylpyrolidone(NMP), tetrachloroethane (TCE), dimethylsulfoxide(DMSO) and H 2 SO 4 . Thermal analysis showed that these polyamides were practically crustily and with T g under 100 °C.

Novel synthesis of high‐molecular‐weight prepolymer of poly(p‐phenylene benzoxazole) in ionic liquids

“…Aromatic polyamides are commonly synthesized via polycondensation of diamines and diacid chlorides in aprotic dipolar solvents . In order to obtain high‐molecular‐weight (η inh ) polyamide polymer, the optimum reaction conditions of polycondensation of DAR and TPC (Figure ) are detected.…”

“…Aromatic polyamides are commonly synthesized via polycondensation of diamines and diacid chlorides in aprotic dipolar solvents. [49][50][51][52] In order to obtain high-molecular-weight (η inh ) polyamide polymer, the optimum reaction conditions of polycondensation of DAR and TPC ( Figure 1) are detected. The inherent viscosities (η inh ) of prepolymer in polycondensation process with 5 typical ILs are exhibited in Figure 2A,B,C, which demonstrate the influence of different parameters.…”