e-Repository BATAN

Advanced Search

Structural and Phase Transition Changes of Sodium Dodecyl Sulfate Micellar Solution in Alcohols Probed by Small-Angle Neutron Scattering (SANS)

Edy Giri Rachman Putra, EGRP and Arum Patriati, AP (2015) Structural and Phase Transition Changes of Sodium Dodecyl Sulfate Micellar Solution in Alcohols Probed by Small-Angle Neutron Scattering (SANS). In: The 5th Asian Physics Symposium (APS 2012).

[img]
Preview
Text
2015Structural and phase transition changes of sodium dodecyl sulfate micellar solution in alcohols probed by small-angle neutron scattering (SANS).pdf - Published Version

Download (425kB) | Preview

Abstract

Abstract. Small-angle neutron scattering (SANS) measurements on 0.3M sodium dodecyl sulfate (SDS) micellar solutions have been performed in the presence of n-alcohols, from ethanol to decanol at different alcohol concentrations, 2- 10 wt%. The ellipsoid micellar structure which occurred in the 0.3M SDS in aqueous solution with the size range of 30- 50 Å has different behavior at various hydrocarbon chain length and concentration of alcohols. At low concentration and short chain-length of alcohols, such as ethanol, propanol, and butanol, the size of micelles reduced and had a sphericallike structure. The opposite effect occurred as medium to long chain alcohols, such as hexanol, octanol and decanol was added into the 0.3M SDS micellar solutions. The micelles structure changed to be more elongated in major axis and then crossed the critical phase transition from micellar solution into liquid crystal phase as lamellar structure emerged by further addition of alcohols. The inter-lamellar distances were also depending on the hydrocarbon chain length and concentration of alcohols. In the meantime, the persistent micellar structures occurred in addition of medium chain of nalcohol, pentanol at all concentrations. Keywords: small-angle neutron scattering, micellar solution, micelles, liquid crystals, lamellar structure. PACS: 61.05.fg; 61.30.-v; 64.70.M-; 64.70.pv.

Item Type: Conference or Workshop Item (Paper)
Subjects: Rekayasa Perangkat dan Fasilitas Nuklir > Teknologi Proses Fasilitas Nuklir
Divisions: Sekolah Tinggi Teknologi Nuklir
Depositing User: USER STTN BATAN
Date Deposited: 09 Aug 2019 01:17
Last Modified: 09 Aug 2019 01:17
URI: http://repo-nkm.batan.go.id/id/eprint/6165

Actions (login required)

View Item View Item