新型聚季铵盐的合成、表征及其性能测试

以二氯乙醚和N,N,N’,N’-四甲基乙二胺为原料,通过共聚合反应制备出新型的水溶性聚季铵盐——聚[(氧亚乙基-二甲基亚氨基-亚乙基-二甲基亚氨基-亚乙基)二氯化物]。研究表明,最佳合成工艺条件为:四甲基乙二胺和二氯乙醚的摩尔配比为1.05∶1,反应温度控制在70℃,反应时间为6 h,滴加速度为30滴/min。采用红外、核磁共振对产物进行结构表征;测定了聚合物的热稳定性,特征粘数等;初步测试了该聚季铵盐的杀菌性能;杀菌时间9 h,药剂投加量为80 mg/L时杀菌效果最好,杀菌率达到98%;产物最大特征粘数为15.231 3 mL/g。

Synthesis and characterized of new quaternary ammonium polymers and its function test

Through copolymerization using N,N,N',N'-tetramethylenediamine and bis(2-chloroethyl) ether as raw materials,a new kind of water-soluble quaternary ammonium was prepared through polymerization reaction:poly[oxyethylene-(dimethyliminio) ethylene-(dimethyliminio) ethylenedichloride].The study indicate:the best synthetic condition when the material proportion of bis(2-chloroethyl) ether and N,N,N',N'-tetamethylenediamine is 1 ∶1.05,and the temperature of the reaction is 70 ℃,the time of the reaction is 6 h,rate of drop is 30 dorp/min.Analytical method such as FT-IR and NMR was used to confirm the structures of polymer.And quaternary polymer's antibacterial activities were studied.Bactericidal efficiency of 9 h is up to 98% when the viscosity is 80 mg/L.The product characteristics of viscosity is 15.231 3 mg/L.