环氧型有机硅季铵盐的合成及性能  

Synthesis and properties of organosilicon quaternary ammonium with epoxy group

作　　者：李俊英[1,2] 宋增峰 柴淑玲[4] 强明明[2] 李天铎[1] 

机构地区：[1]山东轻工业学院山东省轻工助剂重点实验室,山东济南250353 [2]山东轻工业学院化学工程学院,山东济南250353 [3]东营耐尔科技有限公司,山东东营257091 [4]山东轻工业学院轻化与环境工程学院,山东济南250353

出　　处：《功能材料》2010年第A03期473-475,共3页Journal of Functional Materials

基　　金：教育部科学技术研究重点资助项目(208073);山东省自然科学基金资助项目(Y2008B35)

摘　　要：合成了含有环氧基团的有机硅季铵盐二乙基-2,3-环氧丙基-[3-(甲基二甲氧基)]硅丙基氯化铵(DEEPSAC),研究了该化合物的表面性能及抗菌性能,表面张力的测定表明该化合物具有很好的表面活性,测得其临界胶束浓度为2.6mmol/L;平板计数实验表明DEEPSAC浓度为0.10%时对大肠杆菌的抑菌率达100%。动力学研究表明,DEEPSAC的合成反应并不符合通常季铵化反应的二级反应规律,反应级数和速率受温度及体系极性的影响,温度较低时呈现阶段反应的特点。Diethyl-2, 3-epoxypropyl-[3-methyl-dimethoxyl）]silpropyl ammonium chloride（DEEPSAC）was synthesized and its properties such as surface-activity and anti-bacterial ability were studied. The surface tension measurement showed DEEPSAC has obvious surface activity and the critical micelle concentration is 2. 6mmol/L. The plate count method experiments showed that DEEPSAC had 100% antibacterial rate against escherichia coil at the concentration of 0. 10%. Kinetic studies indicated that the quaternization reaction series was not in accordence with the traditional second-order and influenced by temperature, as well as DEEPSAC concentrations.

关 键 词：有机硅季铵盐 环氧基 抗菌性 反应动力学 

分 类 号：TQ423.12[化学工程]