【摘 要】
：
A series of new optically active poly(amide-imide)s were synthesized by direct polycondensation reaction of 4,4’-diaminochalcone with several N-trimellitylimid
【机 构】
：
Organic Polymer Chemistry Research Laboratory,Department of Chemistry,Faculty of Science,Arak Univer
【出 处】
：
Chinese Journal of Polymer Science
论文部分内容阅读
A series of new optically active poly(amide-imide)s were synthesized by direct polycondensation reaction of 4,4’-diaminochalcone with several N-trimellitylimido-L-amino acids using a tosyl chloride(TsCl),pyridine(Py) and dimethylformamide(DMF) system as condensing agent.The resulting thermally stable poly(amide-imide)s were obtained in good to high yields and inherent viscosities ranging between 0.35 dL/g and 0.58 dL/g and were characterized with FTIR, ~1H-NMR,CHN,Ultraviolet,TGA and DTG techniques.
A series of new optically active poly (amide-imide) s were synthesized by direct polycondensation reaction of 4,4’-diaminochalcone with several N-trimellitolimido-L-amino acids using a tosyl chloride (TsCl), pyridine (Py) and dimethylformamide (DMF) system as condensing agent. The resulting thermally stable poly (amide-imide) s were obtained in good to high yields and inherent viscosities ranging between 0.35 dL / g and 0.58 dL / g and were characterized with FTIR, ~ 1H-NMR , CHN, Ultraviolet, TGA and DTG techniques.
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