一种新型水杨酸阳离子表面活性剂的制备

Preparation of Novel Cationic Surfactant Based on Salicylic Acid Using in Agriculture

在农业上,基于水杨酸的阳离子表面活性剂可以利用季铵盐结构吸附于种子或幼苗根部,促进水杨酸发挥作用。以水杨酸、环氧氯丙烷和二乙基乙醇胺为原料,研究了一种新型阳离子表面活性剂的制备工艺。结果表明,制备这种基于水杨酸的阳离子表面活性剂的路线为,在乙腈为反应溶剂的条件下,75℃反应24 h,获得淡黄色液体目标产物,产物的特征基团采用傅里叶变换红外光谱进行了表征。

Salicylic acid, epichlorohydrin and N, N-diethyl ethanolamine were used as raw materials to synthesized a novel cationic surfactant. In agriculture, this surfactant could be adsorbed on seeds or the roots of seedlings using quaternary ammonium salt structure to play a role in promoting the growth of plants. The results in the paper showed that, the optimal reaction conditions were obtained at 75 ℃ for 24 h in acetonitrile, and the product was light yellow liquid. Moreover, FT-IR was used to characterize the characteristic groups in the product.