| abstract |
The present invention makes it possible to obtain high-purity succinic acid, 1,4-diaminobutane, and 1,5-diaminopentane from the fermentation broth produced by the fermentation process of microorganisms, and use it to obtain pure bio-based polyamide-4,4 and It makes it possible to produce polyamide-5,4. The present invention provides various properties for polyamide-4,4 and polyamide-5,4, which were not well known before, and the properties of pure bio-based polyamide-4,4 and polyamide-5,4 are prepared. Shows the same. |