Abstract
The formation of hexagonal and lamellar surfactant-silicate mesophases at room temperature has been investigated by in situ synchrotron small angle X-ray scattering. Emphasis was given to the influence of butanol and hexanol on the surfactant-silicate phase behavior. The experimental setup included a continuous flow reactor allowing a resolution in time as high as 0.3 s. Depending on the reaction composition, one, two, or three coexisting phases were observed. The results are discussed in terms of time-dependent changes in the concentration of cosurfactant not incorporated into the composite aggregates. Although many of the observed effects are paralleled by well-known properties of aqueous surfactant solutions, important dissimilarities exist. Furthermore, the relative intensity of the high-order reflections are suggested to correspond to the degree of interaggregate condensation in the composite mesophase.
Original language | English |
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Pages (from-to) | 5943-5948 |
Number of pages | 6 |
Journal | Journal of Physical Chemistry B |
Volume | 103 |
Issue number | 29 |
DOIs | |
Publication status | Published - Feb 1999 |
MoE publication type | A1 Journal article-refereed |