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Sudan Medical Monitor. 2009; 4 (4): 151-156
in English | IMEMR | ID: emr-123470

ABSTRACT

The rheological properties of two types of anionic surfactant were investigated. The two surfactants were used, namely Sodium Cocoyl Glutamate [commercially known as Amisoft CS-11] and [commercially known as Amilite GCS-11]. Small angle X-ray scattering [SAXS] and polarizing microscope and used for phase identification and structure characterization. Both surfactants were found to form two-phase region and micellar region. Liquid crystalline phases, for both systems, were found to form at higher surfactant concentration. The rheological investigation indicated that amisoft system showed more solid-like behaviour than that of amilite system. The dynamic viscosity measurement, for the two systems, indicated shear thinning behaviour at low frequency while Newtonian behaviour was found at high frequency range


Subject(s)
Rheology , Liquid Crystals , Amino Acids
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