64946-35-6Relevant academic research and scientific papers
Aromatic poly(phenylquinoxaline-amide)s containing pendant benzamede groups
Sava, Ion,Belomoina, Nataliya,Brumǎ, Maria
, p. 695 - 703 (2007/10/03)
Aromatic poly(phenylquinoxaline-amide)s containing pendant benzamide groups have been synthesized by solution polycondensation of equimolar amounts of aromatic diamines having phenylquinoxaline units with 5-(4-acetoxybenzamide) isophthaloyl chloride, in N-methylpyrrolidinone (NMP) as a solvent and in the presence of pyridine as acid acceptor. These polymers were characterized by IR spectra, viscosimetry, gel permeation chromatography, differential scanning calorimetry (DSC) and thermogravimetric analyses. These poly(phenylquinoxaline- amide)s show good solubility in polar aprotic solvents such as NMP, dimethylformamide (DMF) and dimethylacetamide (DMA), good thermal stability with initial decomposition temperature above 330°C and glass transition temperature in the range of 220-335°C. Their weight average molecular weights are in the interval of 29000-91000 and the polydispersity is in the range of 1.4 and 2.5.
