摘要
在低浓度水溶液中 ,木质素磺酸可被臭氧 ( O3 )氧化降解。其氧化产物的紫外吸收光谱、1H核磁共振谱和红外光谱有明显改变。在臭氧作用下木质素磺酸大分子中的芳香结构被破坏 ,转化为CH3CO RO;R CO CH3O;CH3SO2 R三类链状化合物 ,原木质素大分子中的磺酸基主要被转化为 SO2
Lignin sulfonic acid could be oxidized degradedly by ozone (O 3) in water solution. Compared with that of lignin sulfonic acid, the spectra of UV, 1H NMR and IR were changed apparently. In the process of oxidation, the aromatrophore of lignin maromolecules was broken into three kinds of chain compounds: CH 3 CO [ZJY;LX,X]RO; R CO [ZJY;LX,X] CH 3 O; CH 3 SO 2R and the sulfonic acid groups of original macromolecule were changed into SO 2- 4.
出处
《化学世界》
CAS
CSCD
北大核心
2001年第8期407-409,共3页
Chemical World
基金
河北省科技攻关计划项目 (995 470 12 D)
