木质素磺酸盐
化学
木质素
碳-13核磁共振
单体
溶解度
有机化学
质子核磁共振
聚合物
作者
Bjart Frode Lutnæs,Bernt O. Myrvold,Rolf Andreas Lauten,Molla M. Endeshaw
摘要
Abstract Although there has been a major progress in the analysis of native lignin using NMR in the recent years, not much attention has been paid to lignosulfonates. Lignosulfonates are more difficult to analyse because of solubility issues and a more complex structure owing to chemical modification during the pulping process. A large database of NMR data is available for the building blocks of native lignin, but no data are available for the corresponding sulfonated compounds. We have prepared 15 monomeric and seven dimeric sulfonated model compounds characterised by NMR. These include models for end groups, as well as β‐β, β‐5, 5‐5 and β‐O‐5 linkages in lignosulfonates, and will be important for further structural investigation on lignosulfonate. Copyright © 2008 John Wiley & Sons, Ltd.
科研通智能强力驱动
Strongly Powered by AbleSci AI