Synthesis and characterization of optically active and organosoluble poly(amide-imide)s containing imidazole rings as pendent groups by direct polycondensation |
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Authors: | KHALIL Faghihi & MEISAM Shabanian Polymer Research Laboratory |
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Affiliation: | KHALIL Faghihi1 & MEISAM Shabanian2 1Polymer Research Laboratory,Department of Chemistry,Faculty of Science,Islamic Azad University,Arak Branch,Arak,Iran,2Yang Researchers Club |
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Abstract: | Six new optically active poly(amide-imide)s(PAIs) 6a-f were prepared by direct polycondensation reaction of N-trimelli-tylimido-L-histidine 4 as a chiral diacid with various aromatic diamines 5a-f.Triphenyl phosphite(TPP)/pyridine(Py) in the presence of calcium chloride(CaCl2) and N-methyl-2-pyrrolidone(NMP) were successfully applied to direct polycondensation reaction.The resulting new polymers were in good yields,and had inherent viscosities ranging between 0.29 and 0.41 dL g-1 and were detected with elem... |
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