作者:Pankaj Patial、Arifa Shaheen、Ishtiaque Ahmad
DOI:10.1007/s11743-014-1563-8
日期:2014.9
bromide (12). Their identifications are based on IR, 1H‐, 13C‐NMR, DEPT, COSY and mass spectral studies. Their surface active properties are also evaluated on the basis of surface tension and conductivity measurements and thermal stability of these long chain cationics Gemini surfactants have been measured by thermal gravimetric analysis under nitrogen atmosphere.
通过将可再生脂肪酸与提供相应酯类的卤代醇酯化,可以合成新的吡啶鎓Gemini表面活性剂(2-氯乙基十六烷酸酯,2-氯乙基十四烷酸酯,2-氯乙基十二烷酸酯,2-溴乙基十六烷酸酯,2-溴乙基十四烷酸酯和2-溴乙基十二烷酸酯)随后用4,4'-三亚甲基二吡啶进行后续处理,形成标题双子表面活性剂:(4,4'-(丙烷-1,3-二基)双(1-(2-(十六烷酰氧基)乙基)二吡啶鎓)氯化物(7),(4,4'-(丙烷-1,3-二基)双(1-(2-(十四烷酰氧基)乙基)氯化二吡啶鎓(8),4,4'-(丙烷-1,3 -二基)双(1-(2-(十二烷酰氧基)乙基)氯化二吡啶鎓(9),(4,4'-(丙烷-1,3-二基)双(1-(2-(十六烷酰氧基)乙基))溴化吡啶鎓(10),(4,4'-(丙烷-1,3-二基)双(1-(2-(十四烷氧基)乙基)溴化吡啶鎓(11),4,4'-(丙烷-1,3-二基)双(1-(2-(十二烷氧基