Langmuir

pH-responsive surface activity and solubilization with novel pyrrolidone-based gemini surfactants

Z Jiang, X Li, G Yang, L Cheng, B Cai, Y Yang, J Dong

Index: Jiang, Zan; Li, Xuefeng; Yang, Guangfu; Cheng, Li; Cai, Bo; Yang, Yi; Dong, Jinfeng Langmuir, 2012 , vol. 28, # 18 p. 7174 - 7181

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Citation Number: 28

Abstract

A new series of pH-responsive Gemini surfactants with 2-pyrrolidone head groups, N, N′- dialkyl-N, N′-di (ethyl-2-pyrrolidone) ethylenediamine (Di-C n P, where n= 6, 8 10, 12), were synthesized and characterized by 1H NMR, 13C NMR, ESI-MS, and elemental analysis. The surface activity and micellization behavior at acidic, neutral, and basic conditions were characterized by equilibrium surface tension and fluorescence ...