The effect of the head group on branched-alkyl chain surfactants in glycolipid/n-octane/water ternary system

Irwana Nainggolan, Shahidan Radiman, Ahmad Sazali Hamzah, Rauzah Hashim

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Two novel glycolipids have been synthesized and their phase behaviour studied. They have been characterized using FT-IR, FAB and 13C NMR and 1H NMR to ensure the purity of novel glycolipids. The two glycolipids are distinguished based on the head group of glycolipids (monosaccharide/glucose and disaccharide/maltose). These two novel glycolipids have been used as surfactant to perform two phase diagrams. Phase behaviours that have been investigated are 2-hexyldecyl-β-d-glucopyranoside (2-HDG)/n-octane/water ternary system and 2-hexyldecyl-β-d-maltoside (2-HDM)/n-octane/water ternary system. SAXS and polarizing optical microscope have been used to study the phase behaviours of these two surfactants in ternary phase diagram. Study of effect of the head group on branched-alkyl chain surfactants in ternary system is a strategy to derive the structure-property relationship. For comparison, 2-HDM and 2-HDG have been used as surfactant in the same ternary system. The phase diagram of 2-hexyldecyl-β-d-maltoside/n-octane/water ternary system exhibited a Lα phase at a higher concentration regime, followed with two phases and a micellar solution region in a lower concentration regime. The phase diagram of 2-HDG/water/n-octane ternary system shows hexagonal phase, cubic phase, rectangular ribbon phase, lamellar phase, cubic phase as the surfactant concentration increase.

Original languageEnglish
Pages (from-to)84-91
Number of pages8
JournalColloids and Surfaces B: Biointerfaces
Volume73
Issue number1
DOIs
Publication statusPublished - 1 Oct 2009

Fingerprint

Glycolipids
octanes
Ternary systems
ternary systems
Surface-Active Agents
Surface active agents
surfactants
Phase diagrams
Water
Phase behavior
phase diagrams
water
Nuclear magnetic resonance
Maltose
Monosaccharides
Disaccharides
monosaccharides
nuclear magnetic resonance
FORTRAN
optical microscopes

Keywords

  • Glycolipids
  • Lyotropic liquid crystal
  • Phase behaviour
  • Phase diagram
  • Surfactant

ASJC Scopus subject areas

  • Biotechnology
  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

The effect of the head group on branched-alkyl chain surfactants in glycolipid/n-octane/water ternary system. / Nainggolan, Irwana; Radiman, Shahidan; Hamzah, Ahmad Sazali; Hashim, Rauzah.

In: Colloids and Surfaces B: Biointerfaces, Vol. 73, No. 1, 01.10.2009, p. 84-91.

Research output: Contribution to journalArticle

Nainggolan, Irwana ; Radiman, Shahidan ; Hamzah, Ahmad Sazali ; Hashim, Rauzah. / The effect of the head group on branched-alkyl chain surfactants in glycolipid/n-octane/water ternary system. In: Colloids and Surfaces B: Biointerfaces. 2009 ; Vol. 73, No. 1. pp. 84-91.
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