Ion Extraction Mechanism Studied in a Lyotropic Lamellar Phase
نویسندگان
چکیده
منابع مشابه
Ion extraction mechanism studied in a lyotropic lamellar phase.
In this paper we used a surfactant-stabilized lyotropic lamellar model system to study the interfacial behavior of an ion-extracting agent: N(1),N(3) dimethyl-N(1),N(3)-dibutyl-2-tetradecylmalonamide (DMDBTDMA). An analysis of small-angle X-ray scattering (SAXS) and polarized attenuated total reflectance-Fourier transform infrared (ATR-FTIR) data enabled us to describe the distribution of the m...
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An entropically stabilized cetylpyridinium chloride, hexanol, and heavy brine lyotropic lamellar phase subjected to shear flow has been observed here by small angle neutron scattering to undergo collapse of smectic order above a threshold shear rate. The results are compared with theories predicting that such a lamellar phase sheared above a critical rate should lose its stability by a loss of ...
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We report some time-dependent behavior of lyotropic lamellar phase under shear flow. At fixed stress, near a layering instability, the system presents an oscillating shear rate. We build up a new stress versus shear rate diagram that includes temporal behavior. This diagram is made of two distinct branches of stationary states which correspond, respectively, to disordered and ordered multilamel...
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The dilute lamellar phase of the nonionic surfactant C 12EO 5 was doped with goethite (iron oxide) nanorods up to a fraction of 5 vol %. The interaction between the inclusions and the host phase was studied by polarized optical microscopy (with or without an applied magnetic field) and by small-angle X-ray scattering. We find that, when the orientation of the nanorods is modified using the magn...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry B
سال: 2011
ISSN: 1520-6106,1520-5207
DOI: 10.1021/jp108585f