-
公开(公告)号:US4814505A
公开(公告)日:1989-03-21
申请号:US008171
申请日:1987-01-29
IPC分类号: C07C231/24 , C07C67/00 , C07C231/00 , C07C233/00 , C07C233/03 , C08F26/00 , C08F126/02 , C07C102/00 , C07C103/34 , C07C103/365
CPC分类号: C07C233/00
摘要: N-Vinylformamide is purified by fractional distillation in the presence of formamide in a column under from 0.5 to 30 mbar by a method in which the distillation is controlled so that N-vinylformamide containing from 0.1 to 15% by weight of formamide is obtained as the distillate. Homopolymers having particularly high molecular weights can be prepared from the N-vinylformamide purified in this manner.
摘要翻译: N-乙烯基甲酰胺通过在甲酰胺存在下,在0.5至30毫巴的柱中通过分馏进行纯化,其中控制蒸馏的方法使得得到含有0.1-15%(重量)甲酰胺的N-乙烯基甲酰胺作为 馏出物 具有特别高分子量的均聚物可以由以这种方式纯化的N-乙烯基甲酰胺制备。