Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (11): 2124-2130.doi: 10.3866/PKU.WHXB201509112

• SOFT MATTER • Previous Articles     Next Articles

Effect of TBAB/KCl on Constructing Anionic Wormlike Micelles

Yi-Xiu. HAN,Hong. ZHOU,Yong-Qiang. WEI,Yong-Jun. MEI*(),Hang. WANG   

  • Received:2015-06-17 Published:2015-11-13
  • Contact: Yong-Jun. MEI
  • Supported by:
    the National Natural Science Foundation of China and Civil Aviation Administration of China(U1233122)


Using rheological measurements, we investigated the wormlike micelles formed by anionic surfactants, sodium oleate (NaOA), and sodium erucate (NaOEr) in the presence of KCl and tetrabutyl ammonium bromide (TBAB). The viscosity of the NaOA solution increased with KCl concentration, but adding TBAB decreased viscosity. In contrast, the apparent viscosity of NaOEr-KCl solution enhances with increasing TBAB concentration. In addition, NaOEr is better than NaOA at encouraging the construction of viscoelastic wormlike micelles, needing less surfactant and a lower salt concentration. We prepared a wormlike micelle system with strong viscoelasticity by using NaOEr, cooperatively induced by KCl and TBAB. Based on these studies, we discussed the complex influence of TBA+ on constructing wormlike micelles.

Key words: Anionic surfactant, Sodium erucate, Tetrabutyl ammonium bromide, Wormlike micelles, Rheology


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