عنوان مقاله :
Synthesis and Characterization of New Copolyamides Containing Azobenzene Group in the Main Chain
پديد آورندگان :
K، Faghihi نويسنده Polymer Research Laboratory, Department of Chemistry, Faculty of Science, Islamic Azad University, Arak , , M، Shabanian نويسنده Yang Researchers Club, Islamic Azad University, Arak Branch , , S، Oftadeh نويسنده Polymer Research Laboratory, Department of Chemistry, Faculty of Science, Islamic Azad University, Arak ,
اطلاعات موجودي :
فصلنامه سال 1387 شماره 0
كليدواژه :
Azopolymers , Copolyamide , Thermal Properties , Polyacondensation
چكيده لاتين :
Six new copolyamides CoPAs 7a-f were synthesized through the direct polycondensation reaction of 4,4ʹ-azobenzenedicarboxylic acid 1 with 4,4ʹ-diamino diphenylether 2, 4,4ʹ-diamino diphenylsulfone 3 in the presence of adipic acid 4, fumaric acid 5 and terephthalic acid 6 as a second diacid in a medium consisting of N-methyl-2-pyrrolidone, triphenyl phosphite, calcium chloride and pyridine. The resulted polymers were fully characterized by means of FTIR spectroscopy, elemental analyses and inherent viscosity. Those CoPAs readily soluble in polar aprotic solvents such as N,N-dimethyl acetamide (DMAc), N,N-dimethyl formamide (DMF), dimethyl sulfoxide (DMSO), N-methyl-2-pyrolidone (NMP) and solvents such as sulfuric acid. Thermal properties of the CoPAs 7a, 7b and 7f were investigated using thermal gravimetric analysis (TGA and DTG).
عنوان نشريه :
فناوري نساجي
عنوان نشريه :
فناوري نساجي
اطلاعات موجودي :
فصلنامه با شماره پیاپی 0 سال 1387
كلمات كليدي :
#تست#آزمون###امتحان
