Microscopic study of AOT and CTAB anionic-rich catanionic phase

Chun Yuan Tan, Khoo Kok Siong Kok Siong, Shahidan Radiman, Irman Abdul Rahman, Nur Farhana Bt Amari

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Catanionic system using anionic sodium bis-(2ethylhexyl)sulfosuccinate (AOT) and cationic cetyltrimethylammonium bromide (CTAB) is studied. The system is prepared by addition of CTAB solution to a prepared AOT solution until slight anionic-rich catanionic phase is produced. Catanionic system consists of the mixture of different types of surfactants and counterion due to electrostatic interaction between the oppositely charged surfactant. Both of these products affect the in surface activity of the surfactant. Hydrodynamic diameters decrease and clearer solution were seen with the increase of CTAB concentration in solution mixture. As a result, mixed surfactant with larger hydrophobic region and the presence of counterion will induce smaller vesicle to form in catanionic system.

Original languageEnglish
Pages (from-to)623-628
Number of pages6
JournalSains Malaysiana
Volume43
Issue number4
Publication statusPublished - 2014

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Surface-Active Agents
Coulomb interactions
Hydrodynamics
Sodium
cetrimonium

Keywords

  • Alkyl chain number
  • Anionic-rich phase
  • Catanionic system
  • Electrostatic interaction
  • Surfactant number

ASJC Scopus subject areas

  • General

Cite this

Microscopic study of AOT and CTAB anionic-rich catanionic phase. / Tan, Chun Yuan; Kok Siong, Khoo Kok Siong; Radiman, Shahidan; Abdul Rahman, Irman; Amari, Nur Farhana Bt.

In: Sains Malaysiana, Vol. 43, No. 4, 2014, p. 623-628.

Research output: Contribution to journalArticle

Tan, Chun Yuan ; Kok Siong, Khoo Kok Siong ; Radiman, Shahidan ; Abdul Rahman, Irman ; Amari, Nur Farhana Bt. / Microscopic study of AOT and CTAB anionic-rich catanionic phase. In: Sains Malaysiana. 2014 ; Vol. 43, No. 4. pp. 623-628.
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