Chemical structure of lignin of triploid clones of Populus tomentosa in pulp and waste liquor
Jin XiaoJuan; Xie YiMin; Jiang Wei; Pu JunWen; Wu QingLi; Liu XinYu
Journal of Beijing Forestry University 28(2): 129-132
2006
Accession: 004406819
The residual lignin of triploid clones of Populus tomentosa from kraft pulp (KP) and sulfate pulp (ASP), as well as the lignin in the waste liquor was isolated and analysed by Fourier transform infrared (FT-IR) spectrum and 13C nuclear magnetic resonance (NMR). Results showed that the condensed structure and the connection between lignin and semi-cellulose in ASP were less than those in KP.