N-(2-氨基乙基)-氨基丁烷磺酸钠的合成与表征

摘要

以乙二胺和1,4-丁烷磺内酯为原料,合成了水性聚氨酯亲水扩链剂N-(2-氨基乙基)-氨基丁烷磺酸钠,采用红外光谱、核磁共振碳谱和元素分析对其结构进行了表征,讨论了不同原料摩尔比对产物含量的影响.结果表明,提高乙二胺与1,4-丁烷磺内酯的摩尔比可以明显提高目标产物的含量；当乙二胺与1,4-丁烷磺内酯的摩尔比为6.0时,合成产物中目标产物的含量更加接近理论值.%N-(2-amino-ethyl)-amino butane sulphonate was synthesized by reaction of ethylenediamine and 1,4-butane sultone. The structure of the products was characterized by FT-IR,13 C-NMR and elemental analysis. The effect of molar ratio of monomers on the content of mono-substituted products was discussed. The results showed that content of mono-substituted products could be increased significantly when the molar ratio of ethylenediamine to 1,4-butane sultone was 6. 0.