shown in Fig. 10. A diffuse ring can be seen for each PU in each
configuration. As the samples are obviously isotropic, the intensities
were plotted in function of the scattering vectors q by
averaging the signals over the rings.
The intensity variations in function of the scattering vector q
are displayed in Fig. 11. The correlation bumps, corresponding to
the rings observed on the 2D patterns, are clearly visible. From
the previous analysis including DSC, AFM and TEM, the correlation
bumps are expected to reflect the distribution of HDs in the
film. The maxima of the correlation bumps can be used to
determine a mean HDeHD distance, using Bragg relationship
di ¼ 2p/qmax [36]. The values are reported in Table 2. Clearly, the
average distances between HDs lie in the 10e20 nm. It decreases
when increasing the HS fraction, as was qualitatively observed on
the AFM images.
shown in Fig. 10. A diffuse ring can be seen for each PU in eachconfiguration. As the samples are obviously isotropic, the intensitieswere plotted in function of the scattering vectors q byaveraging the signals over the rings.The intensity variations in function of the scattering vector qare displayed in Fig. 11. The correlation bumps, corresponding tothe rings observed on the 2D patterns, are clearly visible. Fromthe previous analysis including DSC, AFM and TEM, the correlationbumps are expected to reflect the distribution of HDs in thefilm. The maxima of the correlation bumps can be used todetermine a mean HDeHD distance, using Bragg relationshipdi ¼ 2p/qmax [36]. The values are reported in Table 2. Clearly, theaverage distances between HDs lie in the 10e20 nm. It decreaseswhen increasing the HS fraction, as was qualitatively observed onthe AFM images.
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