A series of modified lignosulfonates containing aliphatic amide residues were prepared from kraft lignin ( wood and straw) via a modification route, including Mannich Reaction with aliphatic polyamine, acylation by oleyl chloride and sulfomethylation. 以草浆或木浆碱木素为原料,经过与脂肪多胺的曼尼希反应、与油酰氯的酰化反应和磺甲基化反应,合成了一系列含有酰胺结构的改性木质素磺酸盐表面活性剂。