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Process for the purification of N-vinyl formamide and poly-N-vinyl formamide prepared therefrom
Process for the purification of N-vinyl formamide and poly-N-vinyl formamide prepared therefrom
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机译:纯化N-乙烯基甲酰胺和由其制备的聚-N-乙烯基甲酰胺的方法
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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.
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