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Synthesis, characterization, and thermal degradation of oligo-2-(morpholinoiminomethyl)phenol and its Pb(II) complex compound

机译:-2-低聚(吗啉代氨基甲基)苯酚及其Pb(II)配合物的合成,表征和热降解

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The oxidative polycondensation reaction conditions of 2-(morpholinoiminomethyl)phenol were studied with H2O2, air O-2, and sodium hypochloride (NaOCl) oxidants in an aqueous alkaline medium between 40 and 90 degrees C. The structure of oligo-2-(morpholinoiminomethyl)phenol was characterized with H-1- and C-13-NMR, Fourier transform infrared, ultraviolet-visible, size exclusion chromatography, and elemental analysis techniques. Under the optimum reaction conditions, the yield of oligo-2-(morpholinoiminomethyl)phenol was 28% for the H2O2 oxidant, 12% for the air O-2 oxidant, and 58% for the NaOCl oxidant. According to the size exclusion chromatography analysis, the number-average molecular weight, weight-average molecular weight, and polydispersity index of oligo-2-(morpholinoiminomethyl)phenol were 2420 g/mol, 2740 g/mol, and 1.187 with H2O2,1425 g/mol, 2060 g/mol, and 1.446 with air O-2, and 1309 g/mol, 1401 g/mol, and 1.070 with NaOCl, respectively. Thermogravimetry/ dynamic thermal analysis showed that the oligo-2-(morpholinoiminomethyl)phenotlead complex compound was more stable than 2-(morpholinoiniinomeffiyl)phenol and oligo-2-(morpholinoiminomethyl) phenol against thermal degradation. (c) 2006 Wiley Periodicals, Inc.
机译:在40至90℃的碱性水溶液中,用过氧化氢,空气O-2和次氯酸钠(NaOCl)氧化剂研究了2-(吗啉代氨基甲基)苯酚的氧化缩聚反应条件。苯酚通过H-1-和C-13-NMR,傅立叶变换红外光谱,紫外可见光,尺寸排阻色谱法和元素分析技术进行表征。在最佳反应条件下,H 2 O 2氧化剂的低聚-2-(吗啉代氨基甲基)苯酚的产率为28%,空气O-2氧化剂的产率为12%,NaOCl氧化剂的产率为58%。根据尺寸排阻色谱分析,低聚-2-(吗啉代氨基甲基)苯酚的数均分子量,重均分子量和多分散性指数分别为2420 g / mol,2740 g / mol和1.187(H2O2),1425使用空气O-2的浓度分别为10 g / mol,2060 g / mol和1.446,使用NaOCl的浓度分别为1309 g / mol,1401 g / mol和1.070。热重分析/动态热分析表明,低聚物-2-(吗啉代氨基甲基)苯酚铅复合物比2-(吗啉代氨基甲酰基吗啡基)苯酚和低聚物-2-(吗啉代氨基甲基)苯酚对热降解更稳定。 (c)2006年Wiley Periodicals,Inc.

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