Composite precursor of polyacrylonitrile with hydrolytic lignin

Composite precursor based on hydrolytic lignin and polyacrylonitrile was obtained and fibrous composite materials were formed at 80: 20 to 40: 60 ratios between the starting components. A probable mechanism is suggested by which products of cocarbonization of lignin and polyacrylonitrile are formed, with 80-90 wt % carbonized residue produced in an inert atmosphere.