A series of monomeric pyridi-quaternary ammonium salt surfactants were prepared with pyridine as raw material.The surface activity of these compounds was determined.At the same time acting with four bacterial strains,...A series of monomeric pyridi-quaternary ammonium salt surfactants were prepared with pyridine as raw material.The surface activity of these compounds was determined.At the same time acting with four bacterial strains,bactericidal ability was studied by the bactericidal rate,MIC and MBC.The results indicate that they have surface activity and bactericidal ability at some certain extent.展开更多
A new tripodal complex (ClO4)2 (C26H31Cl2N7O8Zn) was synthesized by Schiff base condensation of 2-aminoethyl-bi(3-aminopropyl)amine with 2-pyridinecarbaldehyde in the presence of Zn2+ and characterized by X-ray diffra...A new tripodal complex (ClO4)2 (C26H31Cl2N7O8Zn) was synthesized by Schiff base condensation of 2-aminoethyl-bi(3-aminopropyl)amine with 2-pyridinecarbaldehyde in the presence of Zn2+ and characterized by X-ray diffraction and ES mass spectral analysis. It crystallized in the Monoclinic system, space group P21/c with a=1.088 5(4) nm, b=1.614 6(6) nm, c=1.783 0(5) nm, a=94.405(2) the four test bacterial organisms. CCDC: 231275.展开更多
以吡啶与1-溴代烷(溴代辛烷、溴代癸烷、溴代十二烷和溴代十四烷)为原料,合成了一系列杂环表面活性剂。用正交试验确定合成目标产物的较佳工艺条件为:反应温度90℃,反应时间5h,溴代烷与吡啶的摩尔比1∶1。利用IR,1 H NMR对杂环表面活性...以吡啶与1-溴代烷(溴代辛烷、溴代癸烷、溴代十二烷和溴代十四烷)为原料,合成了一系列杂环表面活性剂。用正交试验确定合成目标产物的较佳工艺条件为:反应温度90℃,反应时间5h,溴代烷与吡啶的摩尔比1∶1。利用IR,1 H NMR对杂环表面活性剂进行结构表征。测定了目标产物对大肠杆菌、金黄色葡萄球菌和枯草芽孢杆菌的杀菌性能。结果表明:所合成的杂环表面活性剂对上述三种细菌具有良好的杀菌性能。展开更多
利用三甲胺盐酸盐、环氧氯丙烷和十二烷基二甲基叔胺(DMA12)等原料合成了2-羟基-N1,N1,N3,N3-五甲基-N3-十一烷基丙烷-1,3-双氯化铵(HPUDC)。实验发现:80℃,中间产物3-氯-2-羟丙基三甲铵和DMA12的摩尔比为1∶1.5,反应7h时,HPUDC的产率可...利用三甲胺盐酸盐、环氧氯丙烷和十二烷基二甲基叔胺(DMA12)等原料合成了2-羟基-N1,N1,N3,N3-五甲基-N3-十一烷基丙烷-1,3-双氯化铵(HPUDC)。实验发现:80℃,中间产物3-氯-2-羟丙基三甲铵和DMA12的摩尔比为1∶1.5,反应7h时,HPUDC的产率可达62.8%,并以1 H NMR和IR验证了结构。以海上某油田水样为处理对象,评价了HPUDC针对硫酸盐还原菌的杀菌性能,结果显示:25mg/L时,其杀菌率为99%,明显好于1227和戊二醛;浓度小于25mg/L时,其杀菌率也优于相应的对称型双季铵盐乙撑基双(十二烷基二甲基)氯化铵。展开更多
文摘A series of monomeric pyridi-quaternary ammonium salt surfactants were prepared with pyridine as raw material.The surface activity of these compounds was determined.At the same time acting with four bacterial strains,bactericidal ability was studied by the bactericidal rate,MIC and MBC.The results indicate that they have surface activity and bactericidal ability at some certain extent.
文摘A new tripodal complex (ClO4)2 (C26H31Cl2N7O8Zn) was synthesized by Schiff base condensation of 2-aminoethyl-bi(3-aminopropyl)amine with 2-pyridinecarbaldehyde in the presence of Zn2+ and characterized by X-ray diffraction and ES mass spectral analysis. It crystallized in the Monoclinic system, space group P21/c with a=1.088 5(4) nm, b=1.614 6(6) nm, c=1.783 0(5) nm, a=94.405(2) the four test bacterial organisms. CCDC: 231275.
文摘以吡啶与1-溴代烷(溴代辛烷、溴代癸烷、溴代十二烷和溴代十四烷)为原料,合成了一系列杂环表面活性剂。用正交试验确定合成目标产物的较佳工艺条件为:反应温度90℃,反应时间5h,溴代烷与吡啶的摩尔比1∶1。利用IR,1 H NMR对杂环表面活性剂进行结构表征。测定了目标产物对大肠杆菌、金黄色葡萄球菌和枯草芽孢杆菌的杀菌性能。结果表明:所合成的杂环表面活性剂对上述三种细菌具有良好的杀菌性能。
文摘利用三甲胺盐酸盐、环氧氯丙烷和十二烷基二甲基叔胺(DMA12)等原料合成了2-羟基-N1,N1,N3,N3-五甲基-N3-十一烷基丙烷-1,3-双氯化铵(HPUDC)。实验发现:80℃,中间产物3-氯-2-羟丙基三甲铵和DMA12的摩尔比为1∶1.5,反应7h时,HPUDC的产率可达62.8%,并以1 H NMR和IR验证了结构。以海上某油田水样为处理对象,评价了HPUDC针对硫酸盐还原菌的杀菌性能,结果显示:25mg/L时,其杀菌率为99%,明显好于1227和戊二醛;浓度小于25mg/L时,其杀菌率也优于相应的对称型双季铵盐乙撑基双(十二烷基二甲基)氯化铵。