丙烯酰胺与木质素磺酸盐共聚接枝的研究

Research of the Graft Polymerization about Acrylamide and Lignin

在常规实验条件下木质素磺酸盐与丙烯酰胺能发生接枝共聚。研究了聚合影响因素,得到木质素与水的质量比,木质素与单体的质量比,反应温度,引发剂浓度、反应时间等因素对改性反应影响的最佳配比条件。-CONH2接枝链的产生削弱了木质素原有的网状结构,因此接枝后的产物吸附能力较改性前明显增强。

Aeryl amide （AM） was synthesized with lignin by common method. The feasibility of aqueous polymerization method was studied. The optimum reaction conditions were obtained by orthogonal experiment as follows： monomer is 0.05 %, reaction temperature is 40℃, mass ratio between AM and lignin is 5：1, and the time of reaction is 48h. The occurrence of CONH2 connection chain weakened originally - possessed net structure of the lignin, so the outcome after connection shows better adsorption ability than before reaction.