The products with higher conductivity are mainly 1, 4-connected head-to-tail chain structure, both benzenoid and quinoid units exist in the polymer chain.
具有较高电导的产物的链结构主要是1,4 -连接的头尾结构，链上同时存在苯式及醌式两种结构单元。
3
The results showed that carbonyl groups in degradation products obviously increased and quinoid matters were produced when dioxane lignin reacted with hydrogen peroxide.