Fig. 3.

(A) WAXS spectra comparing USGs and conventional (conv) glasses of IMC. USG (conv) data are the result of box-averaging over 20 (10) points, respectively. The appearance of a peak at low-q angles in the USG is related to molecular ordering in the direction perpendicular to the substrate, an indication of molecular anisotropy. (B) In-plane and out-of-plane scattering experiments using synchrotron X-rays on layered USG of IMC. The disappearance of the low-angle peak for the USG film in the in-plane experiment indicates that extra ordering occurs mainly in the z direction (perpendicular to the substrate) and is absent in the xy plane. The sketches show the configuration of the X-ray scattering experiments.