Oxygen alkaline wheat straw lignin was modified by reacting with hydroxypropyl, the reactivity of the modified lignin which had more phenolic and alcoholic hydroxyls and diisocyanate was increased.

• 将麦草氧碱木素与环氧丙烷反应得到改性木素,其酚羟基和醇羟基含量增加,提高了木素与二异氰酸酯的反应性能;