本文在研究醛类化合物与尿素反应的基础上,确定含有α—羰醛基的化合物在pH7.4,37℃下对尿素有较高的反应活性。将α—羰醛基引入到苯乙烯—二乙烯苯共聚物骨架上,合成出带有α—羰醛基的树脂。实验结果表明,含α—羰醛功能基的树脂在pH7.4,37℃条件下与目前临床使用的氧化淀粉相比,具有更大的吸附潜力。本文还研究了吸附条件对该树脂吸附性能的影响。 Based on the study of the reaction of aldehydes with urea, the compounds containing α-carbonaldehyde were confirmed to have higher reactivity to urea at pH 7.4 and 37 ℃. The α-carboxaldehyde group is introduced into the styrene-divinylbenzene copolymer skeleton to synthesize the resin with α-carbonaldehyde group. The experimental results show that the α-carboxaldehyde functional group-containing resin has greater adsorption potential than the currently used oxidized starch at pH 7.4 and 37 ℃. The paper also studied the adsorption conditions on the resin adsorption properties.