6AzlO-PVA

FIG. 15.10 Photoinduced expansion and contraction of 6AzlO-PVA monolayer at the air-water interfeee.The area changes of an isolated domain can be visualized in situ by Brewster angle microscopy. (From reference S2 copyright permission from the American Chemical Society.)... 

FIG. 15.11 Time course of area expansion of 6AzlO-PVA monolayer as directly estimated by Note that irxhiction time is observed before ex( nsion. (From reference 52 copyright permission from the Ametican Chemical Society.)... 

Figure 15.15 displays the growth profiles of the first-order diffraction efficiency evaluated with an He-Ne laser beam as a function of the total exposure energy. This figure contains the data obtained with the pure 6AzlO-PVA film (diamonds) and the hybrid film of 6AzlO-PVA/5CB at f = 0,5 with... 

The crystallization process of PDHS film was monitored. The spincast films of PDHS on a 6AzlO-PVA monolayer were first heated to 100 C and then cooled. The enhancement of 370 nm band with concomitant decrease of 320 nm band reflects formation of the all-traws-zigzag Si chain conformation upon crystallization. The crystallization rate strongly depended on the initial isomerization state of the Az of the surface layer (see Figure 15.8). The crystallization process was accelerated on the Z-Az monolayer in comparison... 

---