Abstract: The monomer of [N(C3H6Si(OC2H5)3)3] as the silicon coupling agent was synthesized from γ-chloropropyltriethoxysilane and γ-aminopropyltriethoxysilane with KI as catalyst. The polysiloxane resin was prepared through the hydrolysis and condensation of the silicon coupling agent，and then reacting with quaternization agent C2H5Br. The experiment results indicated that the bacteria killing rates of E. coli and S. aureus were 100% and 99.80% respectively after suspensions with a cell density of 5.4×103 cfu/mL flowed through 1g resins at the liquid flow rate of 15 mL/min. The antibacterial rates of regenerated resin to E. coli and S. aureus were 100% and 99.76% respectively.

摘要： 以γ-氯丙基三乙氧基硅烷、γ-胺丙基三乙氧基硅烷为原料，在碘化钾催化下，制备了有机硅氧烷叔胺单体[N(C3H6Si(OC2H5)3)3]；单体经水解、缩合、季铵化，得到聚硅氧烷季铵盐型树脂。杀菌实验结果表明：当浓度为5.4×103个/mL的大肠杆菌或金黄色葡萄球菌菌悬液，分别以15 mL/min的流速通过1 g树脂层后，树脂对其杀菌率分别为100%和99.80%，再生后的树脂对两种细菌的杀菌率分别可以恢复到100%和99.76%。