| New optically active poly（amide-imide）s derived from N, N′-（4,4-diphthaloyl）-bis-L-leucine and hydantoin derivatives： Synthesis and properties |
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| 作者姓名： | Khalil Faghihi |
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| 作者单位： | Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Islamic Azad University, Arak Branch, Arak, Iran |
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| 摘 要： | Six new optically active poly(amide-imide)s(5a-f) were synthesized through the direct polycondensation reaction of N,N'-(4,4'- diphthaloyl)-bis-L-leucine(3) with six hydantoin derivatives(4a-f).Triphenyl phosphite(TPP)/pyridine in the presence of calcium chloride(CaCl_2) and N-methyl-2-pyrrolidone(NMP) were successfully applied for direct polycondensation.The polycondensation reactions produce a series of new poly(amide-imide)s(5a-f) in high yields,and inherent viscosity between 0.42 and 0.55 dL/g.The re...
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| 收稿时间： | 16 February 2009 |
New optically active poly(amide-imide)s derived from N,N'-(4,4-diphthaloyl)-bis-L-leucine and hydantoin derivatives:Synthesis and properties |
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| Khalil Faghihi.New optically active poly(amide-imide)s derived from N,N'-(4,4-diphthaloyl)-bis-L-leucine and hydantoin derivatives:Synthesis and properties[J].Chinese Chemical Letters,2009,20(10):1153-1156. |
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| Authors: | Khalil Faghihi Polymer Chemistry Research Laboratory |
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| Institution: | Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Islamic Azad University, Arak Branch, Arak, Iran |
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| Abstract: | Six new optically active poly(amide-imide)s (5a–f) were synthesized through the direct polycondensation reaction of N,N′-(4,4′-diphthaloyl)-bis-l-leucine (3) with six hydantoin derivatives (4a–f). Triphenyl phosphite (TPP)/pyridine in the presence of calcium chloride (CaCl2) and N-methyl-2-pyrrolidone (NMP) were successfully applied for direct polycondensation. The polycondensation reactions produce a series of new poly(amide-imide)s (5a–f) in high yields, and inherent viscosity between 0.42 and 0.55 dL/g. The resulting poly(amide-imide)s (5a–f) were characterized by elemental analysis, viscosity measurements, thermal gravimetric analysis (TGA and DTG), solubility test and FT-IR spectroscopy. |
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| Keywords: | High performance polymers Poly(amide-imide)s Direct polycondensation Hydantoin derivatives |
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