利用乙二胺与双丙酮丙烯酰胺间的Michael加成反应合成了含酮羰基的新型扩链剂N,N′-二双丙酮丙酰胺基乙二胺,用1 H NMR和13 C MNR证实了结构。聚己二酸新戊二醇酯、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)预聚后加入N,N′-二双...利用乙二胺与双丙酮丙烯酰胺间的Michael加成反应合成了含酮羰基的新型扩链剂N,N′-二双丙酮丙酰胺基乙二胺,用1 H NMR和13 C MNR证实了结构。聚己二酸新戊二醇酯、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)预聚后加入N,N′-二双丙酮丙酰胺基乙二胺扩链得到含酮聚氨酯预聚物,预聚物经分散、乙二胺扩链后得到聚氨酯分散体。研究了含酮扩链剂用量对分散体及其膜性能的影响。结果表明随N,N′-二双丙酮丙酰胺基乙二胺的增加,聚氨酯分散体的粒径增大、黏度减小。己二酸二酰肼交联后能明显提高WPU胶膜的力学性能。展开更多
A series of bis(1,4 diacylthiosemicarbazide) compounds were synthesized in good yields by the condensation of dicarbonyl isothiocyanate 2 with benzoic hydrazide or dicarbonyl dihydrazide 5 with benzoic isothiocyanate ...A series of bis(1,4 diacylthiosemicarbazide) compounds were synthesized in good yields by the condensation of dicarbonyl isothiocyanate 2 with benzoic hydrazide or dicarbonyl dihydrazide 5 with benzoic isothiocyanate 2′.And the intermediates 2,5 can be easily prepared from the original dicarboxyl acids.With two thiosemicarbazide side chains,these bis (1,4 diacylthiosemicarbazide) compounds may possess good biological activity.展开更多
文摘利用乙二胺与双丙酮丙烯酰胺间的Michael加成反应合成了含酮羰基的新型扩链剂N,N′-二双丙酮丙酰胺基乙二胺,用1 H NMR和13 C MNR证实了结构。聚己二酸新戊二醇酯、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)预聚后加入N,N′-二双丙酮丙酰胺基乙二胺扩链得到含酮聚氨酯预聚物,预聚物经分散、乙二胺扩链后得到聚氨酯分散体。研究了含酮扩链剂用量对分散体及其膜性能的影响。结果表明随N,N′-二双丙酮丙酰胺基乙二胺的增加,聚氨酯分散体的粒径增大、黏度减小。己二酸二酰肼交联后能明显提高WPU胶膜的力学性能。
文摘A series of bis(1,4 diacylthiosemicarbazide) compounds were synthesized in good yields by the condensation of dicarbonyl isothiocyanate 2 with benzoic hydrazide or dicarbonyl dihydrazide 5 with benzoic isothiocyanate 2′.And the intermediates 2,5 can be easily prepared from the original dicarboxyl acids.With two thiosemicarbazide side chains,these bis (1,4 diacylthiosemicarbazide) compounds may possess good biological activity.
