引用本文:
赵剑曦, 毛宁, 游毅, 王贻杰. 季铵盐Gemini表面活性剂杀菌活性及其与分子结构的关联[J]. 应用化学,
2003, 20(12): 1208-1210.
Citation: ZHAO Jian-Xi, MAO Ning, YOU Yi, WANG Yi-Jie. Bactericidal Activities of Some Quaternary Gemini Surfactants in Relation with Their Molecules Structures[J]. Chinese Journal of Applied Chemistry, 2003, 20(12): 1208-1210.
Citation: ZHAO Jian-Xi, MAO Ning, YOU Yi, WANG Yi-Jie. Bactericidal Activities of Some Quaternary Gemini Surfactants in Relation with Their Molecules Structures[J]. Chinese Journal of Applied Chemistry, 2003, 20(12): 1208-1210.
季铵盐Gemini表面活性剂杀菌活性及其与分子结构的关联
摘要:
将2个相同表面活性剂单体的亲水头基联接起来的双头双尾表面活性剂(通常称为Gemini表面活性剂)正受到极大关注[1,2]。当联接链较短时,Gemini单元分子中离子头基的电荷密度和烷烃链密度显著增大,强烈促进它们在二维界面上的吸附。改变联接链的化学组成,可望发生化学亲合的附加吸附力,因而具有相当高的表面活性。
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关键词:
- 季铵盐Gemini表面活性剂
- / 杀菌作用
- / 大肠杆菌
- / 金黄色葡萄球菌
- / 白色念珠菌
English
Bactericidal Activities of Some Quaternary Gemini Surfactants in Relation with Their Molecules Structures
Abstract:
The bactericidal activities of two series of quaternary Gemini surfactants have been examined by the suspension quantitative germicidal tests against Escherchia, Staphylococcus aureus and Candida alibicans respectively, the dodecyltrimethylammonium bromide(C12TABr) was used for comparison. All of the quaternary Gemini surfactants showed superior bactericidal activities to C12TABr due to higher densities in both headgroup charge and alkyl chains.
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