화학공학소재연구정보센터
Journal of Physical Chemistry B, Vol.102, No.45, 8958-8964, 1998
Location of butanol in mixed micelles with alkyl glucosides studied by SANS
Aqueous micellar solutions of beta-D-octyl glucopyranoside (beta-C(8)G(1)), beta-D-decyl maltopyranoside (beta-C(10)G(2)), and beta-D-dodecyl maltopyranoside (beta-C(12)G(2)) containing 5 wt % of butanol have been studied by small angle-neutron scattering using contrast matching techniques in order to determine the location of the alcohol molecules in the micelles. At the chosen alcohol content the micelles of all three surfactants take on prolate ellipsoidal shape. Using deuterated butanol in combination with fully protonated surfactants dissolved in an appropriate mixture of H2O/D2O, it was possible to obtain a scattering signal solely due to the alcohol. For all three systems under investigation, it was found that butanol is incorporated into the amphiphile film and is not solubilized into the hydrophobic core of the micelles.