903272.fig.006a
(a)
903272.fig.006b
(b)
903272.fig.006c
(c)
903272.fig.006d
(d)
Figure 6: The CH2 asymmetric and symmetric stretching features for different SDS packing densities. (a) and (b) refer to the (CH2) and (CH2) modes, respectively, for the DTAB molecule. (c) and (d) represent the (CH2) and (CH2) modes, respectively, for the CTAB molecule.